JP2007241482A - Data display device and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device and a method capable of appropriately extracting a character string and displaying it when displaying a predetermined character string from text data including a format setting tag in a peculiar and distinguishable format. <P>SOLUTION: A tag extraction means 100 extracts a format setting tag from text data. A tag saving means 101 stores the extracted tag together with the position information in the text data in a tag storage means 13 and removes the tag. A peculiar display character string extraction means 102 extracts a character string that displays data using a peculiar format from the text data after saving the tag. A peculiar format tag writing means 103 writes the format setting tag in accordance with the peculiar format in the text data. Furthermore, a tag reset means 104 refers to the storage means 13 and writes the format setting tag. A display means 105 displays the text data. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an apparatus and method for displaying text data in a computer, and more particularly to a technique for giving a specific format to a predetermined character string when displaying text data including formatting tags such as HTML. Is.

In recent years, collecting information via the Internet is routinely performed. In general, a large amount of information on the Internet is stored as text data described in HTML format for display by a web browser.
In the HTML format, in addition to text data, tags that specify various formats such as character color and size, font, and character layout, and files such as image contents are specified, and the address of the link destination page. It contains a tag that specifies.

A typical example of text data including tags is a language format called a markup language or a page description language. In addition to the above-mentioned HTML, there are XMLs defined in JIS X 4159: 2002, such as XHTML derived from XML, MathML for describing mathematical formulas, digital broadcasting, etc. The BML used is known.
Furthermore, a typesetting processing language called Tex is preferably used mainly for writing academic papers.

By the way, many mathematical papers and symbols are described in academic papers, and they often express the content of papers. Therefore, when a researcher extracts a paper on a desired topic from a large number of papers such as a collection of papers, a researcher sometimes performs an operation of selecting and formulating mathematical expressions and symbols.
In recent years, journals published at academic societies are changing from conventional paper media to CD-ROMs and the Internet, and there are many opportunities to browse papers on personal computers.

  In such a case, it is efficient if mathematical formulas and symbols can be quickly identified from the text composing the paper. However, especially in papers that use Latin characters such as English, mathematical formulas and symbols that are often written in Latin characters are buried in the text and must be read in detail. There was a fear of overlooking.

  Conventionally, in a word processor, a display color is changed according to a character type. For example, products are known that distinguish and display hiragana and kanji in black, katakana in green, and half-width alphanumeric characters in brown. In particular, in Japanese and English, the distinction between half-width and full-width and the distinction between long sound and hyphen are obscured, so that the input person can easily understand.

  This method contributes to making the mathematical formulas and symbols easier to read if the Japanese paper contains half-width alphanumeric characters. However, as mentioned above, this method is used for all the papers written in Latin characters. Are all the same color, so it is not easy to distinguish.

  Patent Document 1 discloses a technique for easily displaying various characteristics of an arbitrary chemical substance in a chemical formula. That is, it is described that the color is changed depending on the element symbol and the format such as italic or bold is changed in the case of solid or gas.

JP-A-10-240748

  In this technique, the table data is simply provided with the character string of the element symbol, and the color of the matched character string is changed. Therefore, if a character string that coincides with the element symbol is accidentally present in the text, it is erroneous. The color will change, which is likely to cause misunderstandings and rather difficult to read. In particular, there is a problem that errors frequently appear in text using Latin characters.

  In addition to displaying such academic papers, there are many uses for identifying a desired character string in a web browser. For example, the extracted character string is identified even when the technique for displaying the difference between two documents proposed by the applicants in Patent Documents 2 and 3 and the technique for displaying a keyword are used. It is required to display easily.

Japanese Patent No. 3682535 JP 2004-280176 A

In this way, when characters are displayed in an easy-to-identify manner, if an attempt is made to perform extraction processing on text data including formatting tags as described above, the formatting tags become an obstacle and appropriate processing can be performed. Often not.
Formatting tags are described in text so that the contents can be discriminated because of the nature of human beings to add formats, and the text constituting the body and the like are not distinguished from the data. In addition, since irregular character strings that are slightly different from normal text are described, there is a problem that erroneous extraction is often performed in the above text processing.

  The present invention was created in view of the above-described problems of the prior art, and when displaying a predetermined character string in a unique format that can be easily identified from text data including a formatting tag, the character is It is an object of the present invention to provide a display device and method capable of accurately extracting and displaying a column.

In order to solve the above problems, the present invention provides the following data display device.
That is, according to the first aspect of the present invention, when displaying text data including at least a formatting tag for setting the text format, a part of the character string of the text data is set to a predetermined unique character. This is a data display device that can be displayed in a form.
Then, the apparatus stores tag extraction processing means for extracting at least a part of the formatting tag from text data, and stores the extracted formatting tag together with position information in the text data in the tag storage means. At the same time, it includes tag saving processing means for performing tag saving processing for removing the formatting tag from the text data, and converts the text data into a mode that facilitates extraction processing.

Thereafter, a unique display character string extraction processing means for extracting a character string to be displayed (singular display) using a specific format from the text data after saving the tag, and a format setting tag corresponding to the specific format is stored in the text data. Singular format tag writing processing means to be written in, a tag for reading the formatting tag and position information from the tag storage means, and writing the formatting tag in accordance with the positional information to the text data output from the singular format tag writing processing means Text data in which a unique format tag is written is generated by each means of tag return processing means for performing return processing.
Finally, display processing means for displaying text data in accordance with the formatting tag is provided.

  According to another aspect of the present invention, the data display device according to claim 2 replaces the extracted formatting tag with a predetermined replacement character together with the tag extraction processing means, and the replaced formatting tag. Tag order replacement processing means for storing in the tag order storage means in the order of appearance, singular display character string extraction processing means for extracting a character string to be displayed using the singular format from the text data after tag replacement, and singular format A tag writing processing unit, a tag sequence reverse replacement processing unit that replaces the characters replaced by the tag sequence replacement processing unit with the formatting tags read in order from the tag sequence storage unit, in order of ranking, and a display processing unit. Is.

  The data display device according to claim 3 of the present invention is characterized in that the predetermined replacement character is an ordered character. As an ordered character, for example, a character / symbol (including a blank) provided with a numeral or a character code can be used.

  According to a fourth aspect of the present invention, there is provided a data display device according to claim 4, wherein the tag extraction processing means and a tag for replacing the extracted format setting tag with a predetermined code based on a tag replacement database provided in advance. A replacement processing means, a unique display character string extraction processing means for extracting a character string to be displayed using the unique format from the text data after tag replacement, a unique format tag writing processing means, and a display processing means. It is characterized by that.

  According to a fifth aspect of the present invention, the data display device according to the fourth aspect provides a predetermined format tag based on a tag reverse replacement database prepared in advance from the code replaced by the tag replacement processing means. A tag reverse replacement processing unit for replacement is provided, and text data is displayed by the display processing unit.

  The invention according to claim 6 is provided with a display state setting means capable of switching between a singular display state for performing display using a singular format and a normal display state for performing normal display on the data display device. And

  According to a seventh aspect of the present invention, there is provided a data display device, characterized in that a display state setting means is arranged in an area close to a display area where text data is displayed by the display processing section.

  The invention described in claim 8 is characterized in that the singular format tag writing processing means writes a format setting tag for setting a display color different from the basic character color of the text data as the singular format.

The invention according to claim 9 relates to a configuration in which the text data includes at least symbols or formulas (hereinafter referred to as scientific symbols) used in natural science. The unique display character string extraction processing means stores a scientific symbol database in which one or more character strings used as scientific symbols and expression conditions for expressing the character strings are stored in advance, and a scientific symbol database. A scientific symbol extraction processing unit that extracts a scientific symbol candidate character string from text data with reference to the text, and a character string display determination process that determines a display mode of the scientific symbol candidate character string by comparing with the expression condition A part.
Further, the unique format tag writing processing means writes a format setting tag according to a display mode.

According to a tenth aspect of the present invention, in the configuration in which the data display device detects and displays a text difference, a unit of a target output by the singular display character string extraction processing means as a text data difference In order to detect the difference between the extraction unit and the text data, the following processing is performed using the detection region that is the unit of the region to be compared.
The extraction unit and the detection region may be defined in advance, or may include an input unit and an extraction / detection region setting unit, and the extraction / detection region setting unit may be configured based on setting information input from the input unit. It may be set. The extraction / detection region setting unit may include a storage unit and an extraction / detection region setting unit, and may be set by the extraction / detection region setting unit based on setting information recorded in the storage unit.

The unique display character string extraction processing means includes a storage unit for storing information and an extraction unit.
In the configuration, the extraction unit extracts all the units corresponding to the extraction units from the region other than the current detection region of the input text data, stores the extracted text data in the storage unit, and stores the current detection region. In FIG. 5, a unit corresponding to the extraction unit that is not stored in the storage unit is extracted as a unique display character string, and the processing of the extraction unit is repeated for each detection region.
The unique format tag writing processing means writes a format setting tag according to the display mode.

According to an eleventh aspect of the present invention, in the configuration in which the data display device displays a keyword that is a keyword in a unique format, whether or not the unique display character string extraction processing means is defined in advance is extracted. The following processing is performed using an extraction unit that is provided with a unit setting unit and is set by the extraction unit setting unit.
And in the unique display character string extraction processing means, an extraction expression setting unit for setting an extraction expression to be displayed in a unique format, an extraction region setting unit for setting the location of the extraction region, a storage unit for storing information, and an extraction unit With.

  In the configuration, the extraction unit extracts an extraction unit corresponding to the extraction area, stores the extraction expression corresponding to the extraction expression in the storage unit, and stores the current extraction of the text data in the text data. If the same thing corresponding to the unit is stored in the storage unit, after extracting it as a unique display character string, the unique format tag writing processing means sets the formatting tag according to the display mode. It is characterized by writing.

 The invention described in claim 12 is characterized in that the location of the extraction area in claim 11 is the title portion of the text data.

The present invention can also be provided as a data display method as follows.
That is, according to the thirteenth aspect of the present invention, when displaying text data including at least a formatting tag for setting the text format, a part of the text data can be displayed in a predetermined unique format. The present invention relates to a data display method.
The method includes the following steps.
(1-1) Tag extraction step in which the tag extraction processing means extracts at least a part of the formatting tag from the text data. (1-2) The tag saving processing means extracts the extracted formatting tag. Tag saving step (1-3) unique display character string extraction processing means for storing the tag information together with position information in the text data and performing tag saving processing for removing the formatting tag from the text data The unique display character string extraction step (1-4) for extracting the character string to be displayed using the unique format from the text data after saving the tag. The unique format tag writing processing means uses the format corresponding to the unique format. A unique format tag writing step for writing the setting tag into the text data (1-5) The tag restoration processing means reads the format setting tag and the position information from the tag storage means, and the unique format tag A tag restoration step (1-6) for performing a tag restoration process for writing a formatting tag in accordance with the position information for the text data output from the write-in processing means. The display processing means performs the text data in accordance with the formatting tag. Display step to display

As another aspect, a data display method including the following steps disclosed in claim 14 may be used.
(2-1) A tag extraction step in which the tag extraction processing means extracts at least a part of the formatting tag from the text data. (2-2) A tag sequence replacement processing means extracts the formatted tag. Is replaced with a predetermined replacement character, and the tag order replacement step (2-3) for storing the replaced formatting tags in the order of appearance in the tag order storage means (2-3) the unique display character string extraction processing means A unique display character string extraction step (2-4) for extracting a character string to be displayed using a unique format from the data. The unique format tag writing processing means stores a format setting tag corresponding to the unique format in the text data. Sequential format tag writing step for writing to (2-5) The tag setting reverse replacement processing means reads out the characters replaced in the tag order replacement step in order from the tag order storage means. Display step of displaying the data - the tag hierarchy reverse replacement step (2-6) display processing means for re-substitution in the order of ranking is, text de accordance 該書 formula setting Tag

  Here, the predetermined replacement character is an ordered character. As an ordered character, for example, a character / symbol (including a blank) provided with a number or a character code may be used.

Furthermore, the data display method disclosed in claim 16 can be provided as a different mode. The method includes the following steps.
(3-1) A tag extraction step in which the tag extraction processing means extracts at least a part of the formatting tag from the text data. (3-2) A tag replacement processing means extracts the extracted formatting tag. Tag substitution step for replacing with a predetermined code on the basis of a tag substitution database prepared in advance (3-3) The unique display character string extraction processing means uses a unique format from the text data after tag substitution. Singular display character string extraction step (3-4) for extracting a character string to be displayed A singular format tag writing step in which the singular format tag writing processing means writes a format setting tag corresponding to the singular format in the text data ( 3-5) A display step in which the display processing means displays text data in accordance with the formatting tag.

  Here, the data display method is as follows: (3-3) Tag reversal at any point between (3-3) Singular character string extraction step and (3-5) Before display step. The replacement processing means may execute a tag reverse replacement step of replacing the code replaced by the tag replacement processing means with a predetermined formatting tag based on a tag reverse replacement database provided in advance.

  According to a seventeenth aspect of the present invention, there is provided a configuration capable of switching between a singular display state in which display using a singular format is performed and a normal display state in which normal display is performed by a display state setting unit.

  Here, in the (1-4) (2-4) (3-4) unique format tag writing step, a format setting tag for setting a display color different from the basic character color of the text data is written as the unique format. You may do it.

The data display method according to claim 18, wherein the text data includes at least a symbol or formula used in natural science (hereinafter referred to as a scientific symbol). (1-3) (2-3) (3-3) The unique display character string extraction step uses a scientific symbol database in which one or more character strings used as scientific symbols and expression conditions for expressing the character strings are stored in advance (I- 1) a scientific symbol extraction process for extracting a scientific symbol candidate character string from the text data by referring to the scientific symbol database by a scientific symbol extraction processing unit; (I-2) a character string display determination process; A character string display determination process for determining a display mode of the scientific symbol candidate character string by comparing with the expression condition by the unit.
Then, in the (1-4) (2-4) (3-4) unique format tag writing step, a format setting tag according to the display mode is written.

  In the data display method of the present invention, in order to detect and display a text difference, the unique display character string extraction processing means includes an extraction unit which is a target unit to be output as a text data difference. A detection area that is a unit of an area to be compared for detecting a difference of text data is defined in advance or is provided with an input section and an extraction / detection area setting section and is input from the input section The extraction / detection region setting unit is set based on the information, or the extraction / detection region setting unit is provided with a storage unit and an extraction / detection region setting unit and recorded on the storage unit. The extraction unit and the detection area that are determined depending on whether they are set or not are used. The unique display character string extraction processing means includes a storage unit for storing information and an extraction unit.

  (1-3) (2-3) (3-3) The unique display character string extraction step includes (II-1) regions other than the current detection region of the text data input by the extraction unit. (II-2) a storage process for storing the extraction result in the storage unit; (II-3) in the current detection area, A singular display character string extraction process for extracting a unit corresponding to the extraction unit that is not stored as a singular display character string; and (II-4) a process of repeating the singular display character string extraction process for each detection region. Good.

Further, in the present invention, the unique display character string extraction processing means is defined in advance to display a word or phrase as a keyword in a unique format, or is provided with an extraction unit setting unit. An extraction unit that is set or determined by either is used. An extraction expression setting unit that sets an extraction expression to be uniquely displayed, an extraction area setting unit that sets the location of the extraction area, a storage unit that stores information, and an extraction unit.
In this configuration, (1-3), (2-3), and (3-3) unique display character string extraction step (III-1) the extraction unit extracts one corresponding to the unit of extraction from the extraction region. Extraction process, (III-2) storage process of storing the corresponding expression in the storage unit, (III-3) the same as the unit corresponding to the current extraction unit in the text data If an item is stored in the storage unit, a unique display character string extracting step of extracting it as a unique display character string may be included.

  The above data display method is characterized in that, in the structure of claim 20, the place of the extraction area is the title portion of the text data.

The present invention has the following effects by providing the above configuration.
That is, according to the invention described in claim 1 or 13, the formatting tag is extracted, and the tag is saved in the tag storage means, so that it is displayed specifically for the text data not including the formatting tag. Character string extraction processing can be performed. Unlike normal character strings, formatting tags often appear not only regularly but also include symbols, and thus may be erroneously extracted in the above character string extraction process. According to the present invention, such erroneous processing can be prevented and the amount of text data is reduced, which contributes to high-speed processing.

  According to the invention described in claim 2 or 14, in addition to the above effect, a character serving as a pointer can be arranged at a position where a formatting tag is arranged with a predetermined replacement character, so that the position is stored. The format tag can be saved and restored in the proper order.

  According to the third aspect of the present invention, when a replacement character is missing due to a communication failure or the like by replacing with a sequenced character such as a number or alphabet (may be a plurality of characters) as a predetermined replacement character However, when the replacement is performed again, the lack can be detected, and the situation where the formatting cannot be performed correctly can be stopped only by the formatting tag. Then, other formatting can be performed normally.

  According to the invention described in claim 4 or 15, by replacing the format tag with a predetermined code in accordance with a tag replacement database that is associated in advance, the replaced text database has a small capacity. In addition, there is no need to suppress the error in the character string extraction process and to save the destination. Therefore, the processing mechanism can be simplified.

  According to the fifth aspect of the present invention, the tag reverse replacement database is provided, so that even the formatting tag indispensable for displaying the text data is replaced, and the processing accuracy of the character string extraction is improved. be able to. Then, display can be performed in an appropriate format by reverse replacement.

  According to the invention described in claims 6, 7, and 16, display state setting means capable of switching between a singular display state for performing display using a singular format and a normal display state for performing normal display on the data display device. The display state can be easily switched during browsing. In particular, in the invention described in claim 7, for example, the button can be arranged on a toolbar of a web browser.

  According to the invention described in claim 8, the singular format tag writing processing means writes a format setting tag for setting a display color different from the basic character color of the text data as the singular format.

  According to the invention described in claims 9 and 17, the text data is a scientific paper or the like, and in particular, the technique of the present invention can be used when extracting a scientific symbol. In the case of scientific symbols, in particular, the character string extracted for specific display and the formatting tag are often similar, which contributes to a suitable extraction process according to the present invention.

  According to the tenth aspect of the present invention, the technique of the present invention can be used when detecting and displaying a difference between text data. Also in this case, since the difference is detected by removing the formatting tag, the tag is not extracted as a difference, which contributes to a suitable extraction process.

  According to the inventions described in claims 11 and 12, the technique of the present invention can be used when displaying a word or phrase as a keyword in a unique format. The keyword is extracted from the title portion or the like, but it can be prevented that the keyword is extracted with the formatting tag at that time.

  Hereinafter, embodiments of the present invention will be described based on examples shown in the drawings. The embodiment is not limited to the following.

FIG. 1 is an overall configuration diagram of a data display device (1) (hereinafter referred to as this device) according to a first embodiment of the present invention. The present invention can be easily realized by a known personal computer, and each step of the present invention is executed by a CPU (10) that manages arithmetic processing and text processing. As is well known, the CPU (10) operates in cooperation with a memory (not shown), and in addition to input means such as a keyboard and a mouse (11), a monitor (12) for displaying output results, -An external storage device (13) such as a hard disk is provided.
In addition, a network adapter (14) connected to a network such as the Internet may be provided as data acquisition input means for acquiring text data.

  The CPU (10) includes a tag extraction processing unit (100) that is a tag extraction processing unit, a tag saving processing unit (101) that is a tag saving processing unit, and a unique display character that is a unique display character string extraction processing unit. A column extraction processing unit (102), a singular format tag writing processing unit (103) that is a singular format tag writing processing unit, a tag restoration processing unit (104) that is a tag restoration processing unit, and a display process that is a display processing unit Part (105).

  In the following, the present invention will be described by taking HTML text data as an example. FIG. 2 shows a flowchart of the process. The tagged text (2) is HTML data acquired from an external server device or the like by the network adapter (14), and includes various tags according to the HTML format as is well known. . Such tags include a tag for indicating a link destination and a tag for defining a display format. In the present invention, all tags are defined as format setting tags, and are hereinafter referred to as tags for short.

First, the tag extraction processing unit (100) extracts a tag portion from the tagged text (2). (Step S1-1)
A method for extracting tag information from text data is known. In the case of the HTML format, a tag is surrounded by <and> as <H1>. Therefore, tags can be extracted by sequentially searching <and> from the front of the data.

  Note that only a part of the tags may be extracted by limiting the tags extracted here. In this case, for example, a tag database to be extracted or not extracted is provided in the storage device (13), and the tag extraction processing unit (100) extracts matching tags while referring to the database. To do.

  At this time, only tags that are particularly likely to be confused may be extracted from the database in accordance with a character string extracted by a unique display character string extraction processing unit (102) described later. For example, if you have a structure that extracts scientific symbols as unique display character strings, you can register tags consisting of a combination of one letter or a number, such as <H1> to <H6>, <B>, and <I>. Such tags can also be extracted.

Then, the tag saving processing unit (102) saves the extracted tag in the storage device (13). (Step S1-2)
That is, the tag and the position on the tagged text in which the tag is embedded are sequentially stored in the tag save table in the storage device, and the tag itself is removed from the text data.

  FIG. 3 shows how the tag is removed from the input tagged text (30). At this time, data as shown in Table 1 is stored in the tag saving table. Table 1 shows only the first three tags. As the position, the number of characters from the first character before removing all tags is counted.

  Next, processing (S1-3) in the unique display character string extraction processing unit (102) is performed. This process is a feature of the present invention, and the character string is displayed in order to highlight the character string on the web browser. Examples of the processing unit include scientific symbol extraction, difference extraction, keyword extraction, and the like, which will be described later. Here, an example of extracting a character string stored in a storage device will be described as the simplest example. .

In the storage device (13), for example, “H”, “He”, “Li” and other unique display character strings are stored as some character strings, and the character strings matching the character strings are stored. Extraction processing is performed from the text data after the tag is removed.
The peculiar display means that the display mode such as the color and size of characters is peculiar to the display mode of other texts, and can be read separately from others when the user browses with a web browser. Display modes such as font change, bold, italic, underline, shaded, enclosing character, side point, marker display may be used.

Then, a formatting tag for specific display is written before and after the extracted character string. For this purpose, the singular format tag writing processing (S1-4) is executed by the action of the singular format tag writing processing unit (103).
Specifically, formatting tags such as <font color = "blue"> and </ font> are additionally written before and after the character string.
By such extraction of the unique display character string (S1-3) and writing of the unique format tag (S1-4), it is possible to write a tag for highlighting and displaying the unique display character string.

For the text data in which the unique format tag is written, the tag restoration processing unit (104) performs processing for returning the tag saved in the tag saving processing (S1-2) to the text data (step S1). -5).
The processing unit (104) reads the saved tags in order from the tag saving table of the storage means, and writes the tags according to the stored position. Although the unique format tag is already embedded, the unique format tag counts the position without including it in the number of characters so that the position does not shift.

  In order to avoid this processing, after the extraction of the unique display character string (S1-3), the extracted character string is temporarily stored in the memory, the tag restoration process (S1-5) is performed, and then the unique format tag The writing process (S1-4) may be performed.

Finally, browser display is performed on the monitor (12) by the display processing unit (105). (Step S1-6)
FIG. 4 shows the browser screen at this time. Web browsers that display information such as the Internet are known and are generally displayed as one of windows (40). The top row of the window (40) is the data title (41), the second row is the command string (42) for specifying the processing on the window or the OS, and the third row is the display page. The fourth button indicates the server being browsed and the file storage directory.

In the present invention, in addition to these general browser display screens, it is proposed that a button capable of switching whether or not to perform specific display is arranged in the browser window. That is, as shown in FIG. 4, a toolbar area (46) is provided immediately above the display area (45) for text data, and a button (47) is arranged on the toolbar.
When the user browses with a browser, the display processing unit (105) directly displays the tagged text (2) acquired from the network adapter (14) in the display area (45). When (47) is pressed, the processing of steps S1-1 to S1-6 is executed, and the state is switched to a state in which unique display is performed.

Peculiar display works effectively in the case of specific contents, and it may be difficult to read if peculiar display is performed during normal browsing. Therefore, it is preferable to simply switch the display state with the button (47) in this way. It is.
In particular, it is close to the vertical and horizontal scroll bars (48) by placing it in an area close to the display area, such as a tool bar (adjacent columns and columns within a certain distance from the display area). Intuitive operation is possible.

  A second embodiment of the present invention is shown in FIGS. In the present embodiment, the tag is removed and stored in the first embodiment, but is replaced with a predetermined replacement character.

FIG. 5 is an overall configuration diagram of a data display device (5) (hereinafter referred to as this device) according to a second embodiment of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals. These descriptions are omitted.
The CPU (10) includes a tag extraction processing unit (100), a tag saving processing unit (101) as tag saving processing means, a unique display character string extraction processing unit (102), and a unique format tag writing processing unit (103). ) And a display processing unit (105), a tag sequence replacement processing unit (110) and a tag sequence reverse replacement processing unit (111) are provided.

  FIG. 6 is a flowchart of this embodiment. First, the tagged text (2) is input from the network adapter (14) or the like, and the tag extraction processing unit (100) extracts the tag (S2-1).

  Then, the tag sequence replacement processing unit (110) removes the tag and performs replacement processing with a predetermined replacement character (S2-2). Special characters and symbols that are not used in ordinary text are suitable as replacement characters.For example, a blank character code on the display that is not used, a combination of characteristic characters, or `` (! %% !) ”Or a combination of Greek and Russian letters“ ζБ ”.

For details of the replacement process (S2-2), for example, in the example of FIG. 3, </ TITLE> and <BODY BGCOLOR = "FFFFFF"> are replaced with (! %%!) In order from <TITLE>.
On the other hand, the extracted tags are stored in the storage device (13) as a tag sequence table shown in Table 2.

  By this processing (S2-2), characters such as (! %%!) Are written in the text data, and the original tag is saved. For such text data, the unique display character string extraction processing unit (102) extracts characters to be specifically displayed (S2-3), and the unique format tag write processing unit (103) sets the unique format tag. A writing process (S2-4) is performed. These are as described above.

And the process (S2-5) which returns a tag by the tag order reverse substitution process part (111) is performed with respect to the text in which the specific format tag was written.
In this process (S2-5), the character string (! %%!) Is detected, and reverse replacement is performed again according to the order of the tags stored in the tag order table from the beginning of the replacement character. By this processing, the tag is restored to the text data.

The tagged text subjected to reverse replacement (S2-5) is displayed on the browser (S2-6) by the action of the display processing unit (105).
According to the process of the present embodiment, it is not necessary to count and store the tag position, so that the tag replacement process and the reverse replacement process can be performed easily and quickly.

  Here, as another embodiment of the second embodiment, an order may be further added to a predetermined replacement character. That is, the above replacement character is an ordered character. Here, the ordered character string is a character string having a predetermined order such as a number or an English alphabet. In addition to the visually recognizable character, a character code to which a blank (NULL) is assigned may be used, and if the character code is assigned on the data, it may be invisible. That is, even if the character code is blank, if the character code increases (or decreases) in order, the order can be identified, so that it can be used in the present invention.

The details of the replacement processing (S2-2) in another embodiment are as follows. For example, in the example of FIG. 3, <TITLE> is changed to "## 1 ##", </ TITLE> is changed to "## 2 ##", <BODY Replace BGCOLOR = "FFFFFF"> in order like "## 3 ##".
On the other hand, the extracted tags are stored in the storage device (13) as the tag sequence table shown in Table 2 above.

  By this processing (S2-2), characters such as ## 1 ## are written in the text data, and the original tag is saved. Processing after the unique display character string extraction processing unit (102) is the same as described above.

  In the process of returning the tag (S2-5), the character string of ## n ## (n is a number) is detected, and reverse substitution is again performed on the tag stored in the tag order table according to the order of the number. . By this processing, the tag is restored to the text data.

  According to this configuration, since the replacement character itself includes the order information, it is possible to provide not only a function as a simple pointer but also a function for determining the correspondence with the tag. For example, even if some replacement characters are missing due to a communication failure (network failure, character encoding error, etc.), other replacement characters are appropriately reversely replaced with the original formatting tags. be able to.

  A third embodiment of the present invention is shown in FIGS. The present embodiment is characterized in that a tag is converted into a predetermined code according to the type of the tag with reference to the tag replacement database.

FIG. 6 is an overall configuration diagram of a data display device (7) (hereinafter referred to as this device) according to a third embodiment of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals. These descriptions are omitted.
The CPU (10) includes a tag extraction processing unit (100), a tag saving processing unit (101) as tag saving processing means, a unique display character string extraction processing unit (102), and a unique format tag writing processing unit (103). ) And a display processing unit (105), a tag replacement processing unit (120) and a tag reverse replacement processing unit (121) are provided.

  FIG. 8 is a flowchart of the present embodiment. First, the tagged text (2) is input from the network adapter (14) or the like, and the tag extraction processing unit (100) extracts the tag (S3-1).

  Then, the tag sequence replacement processing unit (110) removes the tag and refers to the tag replacement database as shown in Table 3 to perform a replacement process with a predetermined code (S3-2).

  Here, by using a character string surrounded by a characteristic code such as (! __) as a replacement character string, the tag and other symbols can be clearly identified. When unique information such as a code or a link destination address is included, the unique information may be copied into the replacement character string as shown in the BODY BGCOLOR item in Table 3.

For the replaced text data, the unique display character string extraction processing unit (102) performs a process (S3-3) of extracting characters to be displayed specifically. At this time, by not performing the process (S3-3) on the character string enclosed by (! __ and __!), There is no fear of extracting a tag by mistake and high accuracy. Contribute to safe processing.
The unique format tag write processing unit (103) performs the process of writing the unique format tag (S3-4). These are as described above.

And the process (S3-3-1) which returns a tag by the tag reverse replacement process part (121) is performed with respect to the text in which the specific format tag was written.
The process (S3-3-1) is a process of referring back to the table as shown in Table 3 and reversely replacing the replacement character string enclosed by (! __ and __!) With the original tag. It is.
By this processing, the tag is restored to the text data.

  As another example, a sequence consisting of (! __ and __!) Is added with an order n of tags, for example (! __ T__n__!), And unique information such as a color code is Alternatively, it can be stored in the storage device (13). Then, the tag reverse replacement processing unit (121) can read the unique information from the storage device (13) in accordance with the order n and restore the tag.

  By the way, the tag substitution database used for substitution and the tag substitution database used for reverse substitution do not necessarily have a reversible relationship, and the tag substitution database has substantially the same meaning. A plurality of types of tags having the above may be converted into the same code, and may be converted into any one type of tag using the tag reverse replacement database.

  Further, in the present invention, the reverse substitution step (S3-3-1) is not necessarily required. For example, a table shown in Table 4 is stored as a tag substitution database, and unnecessary tags or particularly erroneous errors are stored. Only tags that are highly likely to be processed may be removed (converted to NULL).

  In this case, since reverse substitution is not performed, some tags are lost, but since a unique format is displayed, a necessary character string can be displayed more effectively. In the present invention, since the purpose is to highlight a specific character string to the user, this configuration can also work effectively.

Finally, the tagged text in which the unique format tag is written is displayed on the browser (S3-5) by the action of the display processing unit (105).
As described above, the present invention replaces the tag in the text data by the method of Embodiments 1 to 3 when extracting the unique display character string, and is intended to suitably display the unique display. It is said.
Hereinafter, a detailed example of the extraction process of the unique display character string will be shown.

(Example of extracting scientific symbols)
First, an example of processing for extracting scientific symbols in the unique display character string extraction processing unit (102) will be described. FIG. 9 shows a configuration diagram of the unique display character string extraction processing unit (102) in the present embodiment. This figure is a diagram showing in more detail the configuration of the unique display character string extraction processing unit (102) in the CPU (10) in the above embodiment. As the processing in the CPU, the scientific symbol extraction processing unit (120) and the character string display are shown. A decision processing unit (121) is provided. The storage device (13) is provided with a database (122) storing scientific symbols and expression conditions.

As shown in FIG. 10, the post-tag saving text (130) with the tag saved / removed is input (131) to the processing unit (102). The present invention works most effectively in the case of a scientific paper using Latin characters such as English as the first tagged text (2) to be input.
Then, chemical symbols and physical symbols, in particular symbols used in natural science such as element symbols, electronic arrangements, and spectral symbols, and formulas such as chemical formulas and mathematical formulas are extracted and displayed from the tag saved text (130). In the present invention, these are collectively referred to as scientific symbols.

From the input text data, the scientific symbol extraction processing unit (120) performs scientific symbol extraction processing (132) with reference to a database (122) in which scientific symbols and their expression conditions are stored in advance.
When a paper including an element symbol as shown in FIG. 11 is input, each character string is read in order from the beginning of the sentence and collated with scientific symbol information included in the database (122). If there is a matching character string, the character string is extracted and processed by a character string display determination processing unit (121) that determines in what display mode the display is to be performed.

  An example of the contents of the database (122) is shown in FIG. Corresponding to each elemental symbol etc. (140), the database defines an accuracy (141) which is a scientific symbol when it is expressed on the text alone. For example, the definition is 0.1 for hydrogen (H), 0.2 for helium (He), and 0.5 for lithium (Li).

  The reason why the accuracy is different for each element is that the element symbol may coincide with the English word and is defined by the size of the possibility of the coincidence. That is, in the case of He, it matches with He representing English in the English word, and therefore it is difficult to judge whether it is “He (he)” or “He (helium)” when it appears alone at the beginning of a sentence. Therefore, the accuracy is 0.1. On the other hand, in the case of neon “Ne”, the accuracy is 0.7 because it is extremely rare when Ne is written at the beginning of a sentence in English.

  As described above, since the accuracy varies depending on the target language, it is desirable to define the accuracy according to the language of the text. For example, it is considered that higher accuracy may be defined because He does not usually appear in Japanese papers.

In the configuration of the present invention, the character string display determination processing unit (121) determines the character color corresponding to the accuracy by acquiring the above accuracy, and the singular format tag writing processing unit (103) determines the character color. Write the tag.
The display color for each accuracy is set in advance on the unique display character string extraction processing unit (102). Examples of the character color include the following embodiments.

  That is, when the whole text or one area of the text is black, when the accuracy is equal to or higher than the threshold value, it is displayed in red, while when it is lower than the threshold value, the color can not be changed. In this case, for example, when the threshold value is 0.2, H is displayed in black and He is displayed in red. As shown in the database (122), all English names (such as hydrogen) representing element names are displayed in red because the accuracy is all one.

This method is convenient when scientific symbols are unique, but there are many cases in which the color cannot be changed in the case of element symbols, or in which it is changed accidentally. Therefore, in the case of element symbols, it is desirable to take the following embodiment.
That is, the display color is changed according to the accuracy. In this case, two or more threshold values are provided. For example, it is defined that red is displayed when the threshold is 0.6 or more, and gray is displayed when the threshold is 0.1 or more and less than 0.6.

In this case, Ne and element names are displayed in red, and other elements are displayed in gray. Here, red is an example of a color that is different in hue from the basic character color (black) for displaying text, and the reader can completely identify the character string because the hue is different. Pink, yellow, etc. are also suitable for the black basic character color.
On the other hand, gray is an example of a color whose brightness is different from the basic character color. Readers do not feel a strong sense of incongruity when the basic text color and brightness are different. Unless you are not particularly conscious, reading is not disturbed, so you can read comfortably. On the contrary, when reading with consciousness, it is clearly different from the basic character color, so it can be clearly seen.

As described above, according to this method, what can be reliably determined as a scientific symbol is strongly presented to the reader, while uncertain one can be displayed with a level of attention. A configuration in which the saturation is changed together with the brightness may be used.
Note that the hue, brightness, and saturation can be changed by a known technique in the singular display character string extraction processing unit (102) and displayed from the monitor (12).

Here, as a feature of the present invention, the calculation of accuracy is performed based on expression conditions. This point is described below.
The expression conditions in the present invention are defined under what conditions the scientific symbols for calculating the accuracy are expressed in the text data. For example, in the above-described example, each element is “provided alone at the beginning of a sentence”. That is, the character string display determination processing unit (121) determines whether the expression position is the beginning of a sentence based on a period, a punctuation mark, a line feed code, or the like.

  The calculation of the accuracy Y using the expression condition is performed according to the following expression in the character string display determination processing unit (121).

(Equation 1) Y = p (str) + Σa _i (str) × x _i
In the above, p (str) is determined by the accuracy (141) that is the basis of the scientific symbol candidate character string str, and a _i (str) is determined by the expression condition i of the database (122) for the scientific symbol candidate character string str. X _i is 1 when the expression condition _i is satisfied, and 0 when it is not.

Therefore, when str is “H”, as will be described later, it is not at the beginning of the sentence (142) (x _cap = 1), there is no character string to be connected (143) (x _cohere = 0), and it is not the ion notation (34). In the case of (x _ion = 0), 0.1 + 0.1 * 1 + 0.2 * 0 + 1 * 0 = 0.2 is the required accuracy.
The above x _cap , x _cohere , and x _ion are parameters corresponding to “not at the beginning”, “concatenated character string”, and “in ion notation” as the expression conditions of x _i in _Equation 1, respectively. .

  If the scientific symbol candidate character string extracted by the scientific symbol extraction processing unit (120) from the text after saving the tag (130) is placed immediately after a period or the like, it can be determined that it has been expressed at the beginning of the sentence. Each accuracy corresponding to the sentence head position of the table (122) is acquired.

  However, at the same time, the database (122) stores the accuracy when the character string is not the beginning of the sentence. The item relating to this is a column (142) displayed by cap in FIG. The second line of the database (122) means that the accuracy is incremented by 1 when “He” appears at a position other than the beginning of the sentence. Therefore, in this case, the accuracy is 1.2. Actually, in this embodiment, the accuracy is defined to be 1 and the accuracy exceeding 1 is processed as 1.

As an embodiment of the present invention, when a character string including uppercase letters is published in the database (122), uppercase and lowercase letters are distinguished as shown, and only lowercase letters are described. For character strings, all lowercase letters, all uppercase letters, and a mixture of them are extracted.
In the case of English, if there is a capital letter in addition to the beginning of the sentence, there is a high possibility that it is a proper noun, etc. By doing this, element symbols etc. that generally express the first letter in capital letters, etc. Can be displayed with high accuracy.

As expression conditions of the present invention, not only the beginning of a sentence but also the accuracy in the case where it is described in conjunction with other characters posted on the database (122) without being separated are defined. ing. This item is a numerical value following the cohere in the column (143), and the accuracy is calculated based on this value. For example, in the case of O in the eighth line of the database (122), the accuracy is 0.1 when it is alone at the beginning of the sentence, but if it is described as OH concatenated with H, The accuracy is 0.3 by adding 0.2.
With the above configuration, when connected like OH, the accuracy is evaluated to be higher than that of single O, so that accurate display can be performed.

  It should be noted that the accuracy is added up to an upper limit of 0.2 for each case where three or more scientific symbol candidate character strings are concatenated instead of two concatenations such as OH. This is because even if capital letters such as abbreviations are consecutive, they are not necessarily scientific symbols in many cases, and the accuracy is prevented from increasing.

In this connection, a database that lowers the accuracy of a specific character string that is easily determined as a scientific symbol may be provided in the external storage device (13). It can be provided as a scientific symbol excluded character string database (not shown) so that it is not extracted when it matches the database in the scientific symbol extraction process (132). That is, in the case of character strings such as CCC and SOHO indicating Convergent Close-Coupling and Small Office Home Office, all of the character strings constituting these are scientific symbols, and the accuracy is likely to increase because they are connected. However, a character string that matches the scientific symbol excluded character string database in the extraction process is removed from the extraction result.
Of course, the present invention can be configured without using the scientific symbol excluded character string database.

  Alternatively, in the accuracy calculation processing (133), the calculation processing may be performed so that the accuracy of the character string that matches the scientific symbol excluded character string database is 0. In this case, a scientific symbol exclusion character string database may not be provided separately, and may be registered as accuracy-10, for example, in the database (122) storing the scientific symbols and expression conditions. When the calculation result is negative, the character string is processed with the accuracy of 0, so that all of these character strings have the accuracy of 0 and are excluded from the scientific symbol candidates.

In addition to the above configuration, it is possible to set an accuracy equal to the character string having the highest accuracy among the connected character strings for each character string to be connected.
Taking the above OH as an example, the accuracy of O is the beginning of the sentence and is connected to H, so the accuracy is 0.3, and the accuracy of H is 0.8 because it is connected to O instead of the beginning of the sentence. In such a case, the accuracy of O is set to 0.8 which is the highest in the concatenated character string.
With this configuration, not only is the accuracy consistent between a series of connected character strings, but it also contributes to a display that is easily visible when the character color is changed according to the accuracy.

The following processing is also possible for the arrangement of scientific symbol candidate character strings.
First, an element may be connected using a hyphen when expressing a molecular structure. In this embodiment, character strings connected with hyphens are processed as in the case of the above-described connection. In this way, the character symbols used for connecting the scientific symbols may be stored in advance, and if they are connected by the character symbols, the same processing as that of connecting them may be performed.

  Alternatively, it is configured not to set the highest accuracy in the concatenated character string for each character string when concatenated as described above, but to increase each accuracy when concatenating with a character string having a predetermined accuracy or higher. May be. That is, for example, when an item “high” is provided in the database (122) and connected to a scientific symbol candidate character string having a threshold value of 0.6 or more, the accuracy +0.7 or 0.8 is defined. In this case, in the above OH example, the accuracy of H is 0.8, which is equal to or greater than the threshold value.

Furthermore, the concept of articulation can be further expanded. That is, the term "continuous" as used in the present invention includes not only the case where scientific symbol candidate character strings are concatenated, the case where they are connected using a hyphen, but also the case where they are connected using a conjunction in the language of the text data. good. In the case of English, when a plurality of nouns are arranged in parallel, a comma and a character string “and” are connected like A, B and C.
At this time, when a comma or and or or is included between the extracted scientific symbol candidate character strings, processing can be performed in the same manner as in the case of connecting them (this case is called parallel).

Even in the case of parallel, the accuracy of all parallel scientific symbol candidate character strings may be matched with the maximum accuracy in the parallel character strings, or the value determined in the database (122) may be added. Also good. In the latter case, a numerical value different from the case of concatenation can be determined.
As described above, in the case of connection or parallel, highly accurate display can be performed by mutually affecting the accuracy of other scientific symbol candidate character strings.

The expression conditions can be appropriately defined according to the target scientific symbol. For example, in the case of an element symbol, a plus / minus symbol indicating an ion is often attached, and when these are attached, it can be determined as a scientific symbol with extremely high accuracy.
Specifically, in the text after saving the tag (130), a format is designated by a tag or the like, and a scientific symbol which is an ion notation by + of the superscript, such as In <sup> + </ sup>, is detected. Similarly, in the case of a predetermined format such as (n +) or (n−) (n is arbitrary), the accuracy is set to 1 according to the column (144) in FIG.

Similarly, for example, character strings such as SPDF in spectroscopic symbols, electronic arrangements of s orbits indicating atomic orbitals, p orbitals, and character strings such as A, G, T, C, and U in the base sequence of genes are referred to as other characters. The accuracy may be calculated in combination.
Since these scientific symbols are expressed according to established rules such as the order in which letters are written, they can be extracted effectively by using a database (122) to which expression conditions can be applied as in the present invention. Can do.

For scientific symbols whose accuracy has been increased by combination with ion notation or other characters, a process for increasing the accuracy may be performed even when the symbol appears alone in the same text data.
That is, the accuracy calculation (133) is performed once for all the text data, the accuracy is determined by ion notation, etc., and the accuracy is redefined for each scientific symbol candidate character string extracted again in the same step (133). Process.
In this process, a character string that matches a predetermined expression condition such as ion notation is extracted, and a predetermined value, for example, +0.7 is added to the accuracy. Or you may give the same value as the precision defined by the said ion notation.
According to this process, it is possible to define high accuracy for a character string that has a high probability of appearing alone due to the appearance of a combination with ion notation or other characters.

As another embodiment of the present invention, a unique display character string extraction processing unit (102) including a morphological analysis processing unit (150) as shown in FIG. 13 can be provided.
Morphological analysis is a well-known technique, and for example, tea bowl (disclosed in Non-Patent Document 2) can be used as a Japanese morphological analysis technique.

http://chasen.aist-nara.ac.jp

  In addition, text data using Latin characters such as English to be divided can be easily divided into morphemes, but analysis processing can be similarly performed by a statistical method such as HMM. Part of speech is also identified using morphological analysis.

  The morphological analysis processing is performed before the scientific symbol extraction step (22) in the above-described embodiment as shown in FIG. At this time, as is well known, analysis is performed using the morphological analysis dictionary (152) stored in the external storage device (13). In the above embodiment, scientific symbols are extracted (132) by collating with the information posted in the database (122), but in this embodiment, the morphemes obtained as a result of analysis and the database are extracted. The contents of (122) are compared with each other and a matching one is extracted (132).

When the morpheme analysis is performed, the morpheme breaks become more accurate, so the collation with the database (122) can be performed reliably. Furthermore, the part of speech of each morpheme can be acquired by morphological analysis. Using this, part-of-speech information can be added to the database (122) together with the character string, and the accuracy in that case can be defined in the same manner as described above.
According to this configuration, for example, if He is a noun, the accuracy of the element name is defined high, while if it is a pronoun, it is very unlikely to be a scientific symbol, so it is defined as “−10” so that the accuracy is zero. You can also
According to another embodiment as described above, it is possible to provide a data display device with higher accuracy.

  Further, in the present invention, when a certain scientific symbol appears in text data together with a specific character string, the following processing can be performed by paying attention to the high probability of being a scientific symbol. That is, when a specific character string is used as a clue expression and a character string (cue expression) that is likely to co-occur with a scientific symbol within the same sentence in text data or within a predetermined morpheme number before and after is extracted, Increase the accuracy of the symbol. In this configuration, the scientific symbol extraction processing unit (120) extracts the scientific symbol and extracts (153) the clue expression with reference to the clue expression table (154) as shown in FIG.

In the clue expression table, for example, “-like ion” which is an expression that easily co-occurs with an element symbol and a combination of each element symbol are stored.
When the co-occurrence character string “-like ion” is extracted, the accuracy of each scientific symbol candidate character string defined as a combination is increased in the accuracy calculation (133). Ascending value is defined in the database (122) as described above, or the accuracy value when it co-occurs in the clue expression table (co-occurrence character string table) (154) Is defined.

In the above, the clue expression table is defined in advance by hand, but the table can be configured by automating this. This process is shown in FIG.
In this process, a text corpus (155) including a scientific symbol is used as a general example sentence. The corpus is publicly known, and morphemes, parts of speech, etc. of word strings in the text are defined in advance. It is also defined whether the string is a scientific symbol or not.
In the present invention, a corpus in which morphemes, parts of speech, etc. of word strings are not defined may be used, and in this case, these may be performed using a known morphological analyzer (not shown) or a dictionary database. After automatically assigning, may proceed to the next processing.

First, a scientific symbol candidate character string is extracted (156) from the text corpus (155) with reference to the database (122).
Then, a character string (clue expression candidate) that co-occurs in the same sentence including the scientific symbol candidate character string in the text corpus (155) is extracted. The number N1 of times that the clue expression candidate co-occurs with the scientific symbol candidate character string is counted (157) for the entire sentence in the text corpus (155).

Next, for the sentence including the clue expression candidate, the number N2 of times that the scientific symbol candidate character string does not appear is counted (158). That is, it is the number of times that the scientific symbol candidate character string and the clue expression candidate do not co-occur and only the clue expression candidate appears alone.
Further, if N2 is not 0, N1 / N2 is calculated (159) to confirm whether the co-occurrence ratio is equal to or greater than a predetermined threshold. When N2 is 0, the processing may be performed in the same manner as when the threshold is equal to or greater than the threshold, or the same processing may be performed only when N1 is a predetermined number of times, for example, 3 times or more.
Alternatively, N1 / (N1 + N2) may be calculated instead of N1 / N2 calculation (159) so that N2 can be applied to all cases.

  In addition, it is confirmed based on a known statistical test method such as binomial test that the number N1 is significantly larger than the number N2 (160). The combination with the scientific symbol candidate character string is recorded in the clue expression table (154).

In this example, a method for performing a binomial test will be described.
As an initial value, the probability that a scientific symbol candidate character string and a clue expression candidate co-occur in one trial and the probability that a scientific symbol candidate character string and a clue expression candidate do not co-occur and only the latter appears alone. Each is 0.5.
Then, the probability that the scientific symbol candidate character string and the clue expression candidate do not co-occur and only the clue expression candidate appears out of N1 + N2 total appearances is obtained.
That is, this probability

(Equation 2)
P1 = ΣC (N1 + N2, x) * 0.5 ^x * 0.5 ^{N1 + N2-x}

However, Σ is the sum of x = 0 to x = N2, and C (A, B) is the number when B out of A different ones are taken out.

If this probability value is sufficiently small, it can be determined that N1 and N2 are not equivalent probabilities, that is, N1 is significantly larger than N2.
Then, if 5% test, the above P1 is smaller than 5%, and if it is 10% test, P1 is smaller than 10%.

  In the above description, the same sentence is used, but it is not simply the same sentence. It may be limited to clue expression candidates (co-occurring in a word string). A morpheme or a set of morphemes can be used as the word string.

As another method for calculating the accuracy of the scientific symbol candidate character string with high accuracy, the following techniques can be used in combination.
In the present technology, when a large number of scientific symbol candidate character strings appear as compared with a general sentence, it is determined that the character string is highly likely to be a scientific symbol. For example, when a character string “lead” is considered, it may be a scientific symbol (element name) or an English word meaning “lead”.

English words with the latter meaning rarely appear frequently in general sentences, but frequently appear in sentences that have discussed lead in scientific papers. In this case, it is preferable to process as a scientific symbol.
Therefore, as shown in FIG. 17, when a scientific symbol is first extracted from the text after saving the tag (130), the number of the extracted scientific symbols and the total number of words constituting the text after saving the tag (130). The ratio, that is, the appearance rate R1 (appearance number of the scientific symbol candidate character string / total number of all character strings) is calculated (162).

Next, using the general text corpus (163) (for example, newspaper article), the number of occurrences of the scientific symbol candidate character string / total number of all character strings in the text corpus (163) is calculated in the same manner ( 164). This is the appearance rate R2.
Then, an appearance ratio R1 / R2 is calculated (165), and it is determined whether or not the ratio is larger than a predetermined threshold.
In addition, if the above R1 is significantly larger than R2 based on a known statistical test technique such as a ratio test or a chi-square test (160) and confirmed (for example, chi 2 The combination of the candidate clue expression candidate and the scientific symbol candidate character string is recorded in the clue expression table (154) when it is recognized as significant at the 1% level or the 5% level by the multiplication test).

Describing the chi-square test, the denominator and numerator for calculating R1 are N1 and F1, respectively, and the denominator and numerator for calculating R2 are N2 and F2, respectively.
As N = N1 + N2, the chi-square value is obtained by the following equation.

(Equation 3)
Chi-square value =
(N * (F1 * (N2-F2)-(N1- F1) * F2) ² ) / ((F1 + F2) * (N- (F1 + F2)) * N1 * N2)

  And, it can be said that R1 and R2 are more significant as the chi-square value is larger. For example, when the chi-square value is larger than 3.84, it can be said that there is a significant difference of 5%, and the chi-square value is larger than 6.63. Sometimes it can be said that there is a significant difference of 1%.

  Next, the case where the ratio test is used will be described. First,

(Equation 4)
p = (F1 + F2) / (N1 + N2)
p1 = R1
p2 = R2

It is defined as
And the test statistic in the difference test between the two groups is

(Equation 5)
Z = | p1-p2 | / √ (p * (1-p) * (1 / N1 + 1 / N2))

It is represented by
At this time, it can be said that the larger Z is, the more significant difference between R1 and R2 is, and when Z is greater than 1.96, there is a significant difference of 5%, and when Z is greater than 2.58, the risk is 1%. It can be said that there is a significant difference.

In these embodiments, the configuration in which the accuracy is previously defined in the database (122) has been described. However, it is also possible to use a configuration that automatically corrects the accuracy from the text data as follows.
As shown in FIG. 18, when a text is input (131) and then a scientific symbol is extracted (132), the number of scientific symbol candidate character strings in the text (130) after tag saving is counted (170). The count can be executed by a CPU by a known method.

When the count is a predetermined threshold value (for example, defined as 5 times or more in 500 words) (171), the accuracy defined in the database (122) is increased. Rewrite processing (172) is performed.
By calculating the accuracy using the rewritten database (122), it is easy to determine that a character string that appears frequently is a scientific symbol. This method is effective when, for example, the English preposition and the element symbol have the same spelling, and if the spelling character string is more than a certain amount, the text data contains the contents related to the element symbol. This is because they are likely to be extracted and displayed without exception.

  It is also effective for single uppercase letters such as N and O. When these characters frequently appear in places other than the beginning of the sentence, it is determined that they are scientific symbols even when they appear at the beginning of the sentence. It becomes easy to come out.

As a supplement, the display color may be directly defined in the database (122) instead of the accuracy. In this case, the display color is directly defined for each expression condition, and the same effect as described above is obtained.
Moreover, although the structure which changes a display color was disclosed in the present Example, the structure which changes a format instead of a color may be sufficient. As is well known, the display mode of text data is known to change the character font, add underline, shaded display, range display with parentheses, etc. The range can be displayed to the reader.

Hereinafter, as specific examples of the present invention, a display color and a determination rule for each scientific symbol candidate character string will be described.
FIG. 19 is a definition of display colors in the present invention. As shown in the figure, rules 1, 3, 4, 5, 6, 7, and 8 are defined, and each of the rules 1 is displayed in pink when expressing atoms, molecules, and ions. 3 is defined as displaying in yellow in the expression of the electronic arrangement.
Note that rule 2 is a missing number.

In relation to the expression conditions described above, the rule 1 is judged by the electron e, +/- upper and lower subscripts, atomic name upper and lower subscripts, IVXivx expressions, and "like" / "ic" as well. It is defined to be displayed with.
In rule 3, “number *” (* indicates that it may or may not be present; the same shall apply hereinafter) “s / p / d / f / g” “upper and lower subscripts *” one or more times As long as the number is included at least once.

In Rule 4, the “upper and lower subscripts *”, “S / P / D / F / G”, and “upper and lower subscripts *” must be repeated one or more times, and the “upper and lower subscripts” must be included at least once. As a condition.
Also, when competing with the above rule 1, the stricter rule below is adopted.
In other words, “upper subscript *”, “S / P / D / F / G”, and “subscript subscript *” are repeated one or more times, and the subscript content is limited to 1 to 4, and either upper or lower subscript appears. It is a condition to do.

In the determination of rule 5, “n / l”, “= / </>” is repeated one or more times, and the number is displayed in light blue as a condition.
In the determination of rule 6, when “(repetition of rule 3) zero or more times” “number / n / n-bar l” appears, it is displayed in orange.

In rule 7, if an atom name consisting of a single uppercase letter of the English alphabet is not indicated by a clue expression (such as -like ion), it is determined that it is highly likely that it is not an atom name, and is classified as rule 7. To do. Also, in the case of an expression in which atomic names consisting of one uppercase letter of the English alphabet or “Rev” are consecutive, if there is no clue expression, it is similarly classified into rule 7.
When As, In, At, and He appear at the beginning of a sentence, they are classified as rule 7 because there is a high possibility of prepositions and pronouns.

Further, although none of the conditions was met by the display color rule as described above, the one extracted as the scientific symbol candidate character string was designated as rule 8 and displayed in dark gray.
The display color rule as described above is linked to the accuracy calculation result, and is realized by appropriately designing the configuration of the database (122).

(Example of extracting document differences)
For the processing of the unique display character string extraction unit (102) of the present invention, the configuration of the document difference detection apparatus described in Patent Document 2 by the applicant can be used.
That is, FIG. 20 is an explanatory diagram of the principle of the unique display character string extraction unit (102) in this embodiment. The unique display character string extraction unit (102) is provided with an extraction / detection region setting unit (180), and is connected to a storage means (13).

  Although details have already been disclosed in Patent Document 2, the extraction / detection area setting unit (180) detects the difference between the extraction unit and the text data, which is a unit to be output as the difference between the text data. Therefore, the detection area, which is a unit of the area to be compared, is recorded in the setting information inputted from the input means (11) such as a keyboard or a mouse, or in the storage unit comprising the memory or the external storage device (13). Set based on any of the set information.

  As extraction units, “word”, “kanji”, “noun phrase”, and the like can be considered. Further, the unit of the detection area is a unit of the area to be compared in order to detect the difference. As the unit of the detection area, “character”, “word”, “sentence”, “item of bullet”, “paragraph”, and the like can be used.

  In the present invention, the extraction unit and the detection area may be defined in advance without necessarily providing the extraction / detection area setting unit (180), and may not be set for each processing.

(1) In this configuration, the singular display character string extraction unit (102) extracts and stores all the units corresponding to the extraction unit from the area other than the current detection area of the input text data. A part corresponding to the extraction unit that is stored in the part (13) and not stored in the storage part in the current detection area is extracted as a unique display character string, and the processing of the extraction part is performed for each detection area Repeat.

(2) Alternatively, the unique display character string extraction unit (102) corresponds to the extraction unit that is not stored in the storage unit (13) in the current detection area of the input text data. The highlighted display of the document in the current detection area and the storage of the highlighted display in the storage unit (13) are repeated for each detection area. For this reason, it is possible to easily extract and display a unit corresponding to a newly appearing extraction unit (for example, a word).

(3) In the unique display character string extraction unit (102) of (1) or (2), the storage unit (13) stores in advance the data of the extraction unit that is not highlighted. For this reason, expressions that are not so important in advance can be prevented from being highlighted and can be easily viewed.

(4) In the unique display character string extraction unit (102) of (1) to (3), a word unit is used as the extraction unit. For this reason, a newly appearing word can be extracted and displayed.

(5): In the unique display character string extraction unit (102) of (1) to (4), the unit of the itemized list is set as the unit of the detection area. For this reason, the difference between the bullets can be easily understood.

(6): In the unique display character string extraction unit (102) of (1) to (4), a unit of the claims is used as a unit of the detection region. For this reason, the features and differences of the claims can be easily understood.

(Example of extracting a keyword)
For the processing of the unique display character string extraction unit (102) of the present invention, the configuration of the keyword emphasis device described in Patent Document 3 by the applicant can be used.
That is, FIG. 21 is an explanatory diagram of the principle of the unique display character string extraction unit (102) in this embodiment. The unique display character string extraction unit (102) is provided with an extraction unit setting unit (181), an extraction expression setting unit (182), and an extraction region setting unit (183), and is connected to a storage means (13).

(A) The extraction unit setting unit (181) sets an extraction unit, and the extraction expression setting unit (182) sets an extraction expression to be displayed in a unique format. The extraction area setting unit (183) sets the location of the extraction area.
In this configuration, the unique display character string extraction unit (102) extracts a unit corresponding to the unit of extraction from the extraction region, stores a part corresponding to the extracted expression in the storage unit, and stores the text data. If the same one corresponding to the current unit of extraction is stored in the storage unit, it is extracted as a unique display character string.

  In the present invention, an extraction unit may be defined in advance without using the extraction unit setting unit (181), and the extraction unit may not be set every time processing is performed.

(B) In the singular display character string extraction unit (102) of (A), the input data is checked from the front of the data, and the same as the unit corresponding to the current extraction unit is the storage means. If the previous extraction unit is highlighted, the unit corresponding to the previous extraction unit and the current extraction unit are specially highlighted. Extract. Therefore, it is possible to more clearly find a place corresponding to the explanation of the extraction area in the input data.

(C) In the unique display character string extraction unit (102) of (A) to (B), at least one of the settings of the extracted expression to be highlighted by the extracted expression setting unit (182) is a noun. For this reason, only important things such as nouns can be highlighted.

(D) In the unique display character string extraction unit (102) of (A) to (C), the place of the extraction area is the title portion of the input data. For this reason, it is possible to easily find a place corresponding to the description of the title portion regarded as important in the input data.

(E): In the singular display character string extraction unit (102) of (A) to (C), a place specified by the user of input data is set as the location of the extraction area. Therefore, it is possible to easily find a place corresponding to the description of the part designated by the user in the input data.

(F): In the unique display character string extraction unit (102) of (E), a plurality of parts are designated as the parts designated by the user, and different highlights are displayed depending on the designated parts. Therefore, it is possible to easily find a place corresponding to the explanation of the plurality of parts designated by the user in the input data.

(G): The above-described unique display character string extraction unit (102) of (E) or (F) highlights the input data corresponding to the unit of extraction that appears for the first time. A document difference detection apparatus configuration (document difference detection mechanism) is provided, and a portion highlighted by the mechanism is designated as a portion designated by the user. For this reason, it is possible to more clearly find a place corresponding to the description of the part designated by the user in the input data.

(H): In the singular display character string extraction unit (102) of (E) or (F), a detection area that is a unit of an area to be compared in order to detect a difference of input data is set. Extracting all the extraction units corresponding to the above-mentioned extraction unit from the region other than the current detection region of the input data, and corresponding to the extraction unit not existing in the region other than the detection region in the current detection region A document difference detection mechanism for highlighting is provided, and a portion highlighted by the mechanism is designated as the portion designated by the user. For this reason, it is possible to more clearly find a place corresponding to the description of the part designated by the user in the input data.

(I): An extraction unit setting unit (181) for setting an extraction unit in the unique display character string extraction unit (102), an extraction region setting unit (182) for setting the location of the extraction region, and the input data A document difference detection mechanism (not shown) for highlighting the one corresponding to the extraction unit appearing for the first time, and connected to storage means (13) for storing information.
Then, the unique display character string extraction unit (102) extracts the part corresponding to the unit of extraction from the extraction area as the extracted area location highlighted by the document difference detection mechanism and stores it in the storage means (13). Then, when the input data is checked from the front and the same data corresponding to the current unit of extraction is stored in the storage means (13), it is extracted for highlighting. . For this reason, it is possible to clearly find a place corresponding to the explanation of the portion corresponding to the unit of extraction of the word or the like appearing for the first time in the input data by simple means.

(J): The unique display character string extraction unit (102) includes an extraction unit setting unit (181) for setting an extraction unit and an extraction region setting unit (182) for setting the location of the extraction region, and stores information. The storage means (13) to be connected is connected.
The unique display character string extraction unit (102) sets a detection area which is a unit of an area to be compared in order to detect a difference between the input data, and sets a detection area other than the current detection area of the input data. Extract all the units corresponding to the extraction unit from the region. In addition, a document difference detection mechanism (not shown) that highlights an extraction unit that is not present in any region other than the detection region in the current detection region is provided.
As the location of the extraction region, the part highlighted by the mechanism is extracted, and the portion corresponding to the unit of extraction is extracted from the extraction region and stored in the storage means (13). If the same unit as the unit of extraction is stored in the storage means (13), it is highlighted. For this reason, it is possible to clearly find a place corresponding to the explanation of the portion corresponding to the unit of extraction of the word or the like appearing for the first time in the input data by simple means.

In the present invention, as described above, when the mechanism for extracting scientific symbols, the mechanism for detecting document differences, and the mechanism for extracting keywords are used in the unique display character string extraction processing unit (102), The influence of the tag is suppressed during processing of each mechanism, and high-precision and high-speed processing is possible.
In particular, by displaying the above-described buttons on an Internet web browser so that the user can arbitrarily switch the unique display, the display effect of each mechanism can be utilized to the maximum.

1 is an overall configuration diagram of a data display device (first embodiment) according to the present invention. It is a flowchart of the data display method (1st Example) of this invention. It is a figure which shows the mode of tag evacuation in this invention. It is explanatory drawing which shows the display screen of the web browser by this invention. It is a whole block diagram of the data display apparatus (2nd Example) of this invention. It is a flowchart of the data display method (2nd Example) of this invention. It is a whole block diagram of the data display apparatus (3rd Example) of this invention. It is a flowchart of the data display method (3rd Example) of this invention. It is a block diagram of the specific display character string extraction process part which extracts the scientific symbol used by this invention. It is a flowchart of the specific display character string extraction process which extracts the scientific symbol used by this invention. It is an example of the paper data used by this invention. It is an example of the contents of the database of FIG. It is a block diagram (another Example) of the specific display character string extraction process part which extracts the scientific symbol used by this invention. It is a flowchart (another Example) of the unique display character string extraction process which extracts the scientific symbol used by this invention. It is a flowchart (another Example) of the unique display character string extraction process which extracts the scientific symbol used by this invention. It is a flowchart of the process which builds a clue expression table from a text corpus. It is a flowchart of the process which builds a clue expression table from the text after tag saving. It is a flowchart of the process which corrects an accuracy automatically from text data. It is a definition of the display color in this invention. It is a block diagram of the specific display character string extraction process part which detects the document difference used by this invention. It is a block diagram of the peculiar display character string extraction process part which extracts the keyword used by this invention.

Explanation of symbols

1 Data display device 2 Text with tag 10 CPU
11 Keyboard / Mouse 12 Monitor 13 Storage Device 14 Network Adapter 100 Tag Extraction Processing Unit 101 Tag Save Processing Unit 102 Singular Display Character String Extraction Processing Unit 103 Singular Format Tag Write Processing Unit 104 Tag Recovery Processing Unit 105 Display Processing unit S1-1 Processing for extracting a tag S1-2 Processing for saving a tag S1-3 Processing for extracting a character string to be uniquely displayed S1-4 Processing for writing a unique format tag S1-5 Processing for returning a tag S1-6 Processing to display in browser

Claims (17)

A data display device capable of displaying a partial character string of text data in a predetermined unique format when displaying text data including a formatting tag for setting at least text formatting,
Tag extraction processing means for extracting at least a part of the formatting tag from the text data;
Tag extraction processing means for storing the extracted formatting tag together with position information in the text data in tag storage means, and performing tag saving processing for removing the formatting tag from the text data;
A singular display character string extraction processing means for extracting a character string to be displayed using the singular format from the text data after saving the tag;
Singular format tag writing processing means for writing a format setting tag corresponding to the singular format into text data;
A tag return processing means for performing a tag return process for reading the formatting tag and position information from the tag storage means and writing the formatting tag according to the position information to the text data output from the singular format tag writing processing means;
And a display processing means for displaying text data in accordance with the formatting tag. A data display device capable of displaying a partial character string of text data in a predetermined unique format when displaying text data including a formatting tag for setting at least text formatting,
Tag extraction processing means for extracting at least a part of the formatting tag from the text data;
A tag sequence replacement processing means for replacing the extracted formatting tag with a predetermined replacement character and storing the replaced formatting tag in the tag order storage means in the order of appearance;
Singular display character string extraction processing means for extracting a character string to be displayed using the singular format from the text data after tag substitution;
Singular format tag writing processing means for writing a format setting tag corresponding to the singular format into text data;
A tag sequence reverse replacement processing unit that replaces the characters replaced by the tag sequence replacement processing unit with the formatting tags read in order from the tag sequence storage unit again in the order of the sequence;
And a display processing means for displaying text data in accordance with the formatting tag. The data display device according to claim 2, wherein the predetermined replacement character is an ordered character. A data display device capable of displaying a partial character string of text data in a predetermined unique format when displaying text data including a formatting tag for setting at least text formatting,
Tag extraction processing means for extracting at least a part of the formatting tag from the text data;
Tag replacement processing means for replacing the extracted formatting tag with a predetermined code based on a tag replacement database provided in advance;
Singular display character string extraction processing means for extracting a character string to be displayed using the singular format from the text data after tag substitution;
Singular format tag writing processing means for writing a format setting tag corresponding to the singular format into text data;
And a display processing means for displaying text data in accordance with the formatting tag. The data display device comprises:
A tag reverse replacement processing means for replacing the code replaced by the tag replacement processing means with a predetermined formatting tag based on a tag reverse replacement database prepared in advance;
The data display device according to claim 4, wherein the display processing means displays text data. The data display device comprises:
6. The data display device according to claim 1, further comprising display state setting means capable of switching between a singular display state in which display using a singular format and a normal display state in which normal display is performed. The data display device according to any one of claims 1 to 6, wherein the display state setting means is arranged in a region close to a display region where text data is displayed by the display processing unit. In the unique format tag writing processing means,
8. The data display device according to claim 1, wherein a format setting tag for setting a display color different from the basic character color of the text data is written as a unique format. In the configuration in which the text data includes at least symbols or formulas used in natural science (hereinafter referred to as scientific symbols),
The singular display character string extraction processing means,
A scientific symbol database in which one or more character strings to be used as scientific symbols and expression conditions for expressing the character strings are stored in advance;
A scientific symbol extraction processing unit for extracting a scientific symbol candidate character string from the text data with reference to the scientific symbol database;
A character string display determination processing unit that determines a display mode of the scientific symbol candidate character string in comparison with the expression condition,
The singular format tag writing processing means,
9. The data display device according to claim 1, wherein a formatting tag according to the display mode is written. In the configuration in which the data display device detects and displays a text difference,
The singular display character string extraction processing means,
Whether an extraction unit, which is a unit to be output as a difference between text data, and a detection area, which is a unit of an area to be compared in order to detect a difference between text data, are defined in advance or extracted from the input unit A detection area setting unit, which is set by the extraction / detection area setting unit based on setting information input from the input unit, or includes a storage unit and an extraction / detection area setting unit; Is set in the extraction / detection area setting unit based on the setting information recorded in the
A storage unit for storing information;
An extraction unit,
The extraction unit extracts all the units corresponding to the extraction unit from the region other than the current detection region of the input text data, stores the extracted data in the storage unit, and in the current detection region, Extracting one corresponding to the extraction unit not stored in the storage unit as a unique display character string,
Repeat the processing of the extraction unit for each detection region,
The singular format tag writing processing means,
9. The data display device according to claim 1, wherein a formatting tag according to the display mode is written. In the configuration in which the data display device displays a keyword as a keyword in a unique format,
The singular display character string extraction processing means,
Using an extraction unit that is either defined in advance or set by the extraction unit setting unit with an extraction unit setting unit,
An extraction expression setting unit for setting an extraction expression to be uniquely displayed;
An extraction area setting section for setting the location of the extraction area;
A storage unit for storing information;
An extraction unit,
The extraction unit extracts a part corresponding to the extraction unit from the extraction region, stores the part corresponding to the extracted expression in the storage unit, and sets the current extraction unit in the text data. If the same equivalent is stored in the storage unit, after extracting it as a unique display character string,
The singular format tag writing processing means,
9. The data display device according to claim 1, wherein a formatting tag according to the display mode is written. 12. The data display device according to claim 11, wherein the location of the extraction area is a title portion of the text data. A data display method capable of displaying a partial character string of text data in a predetermined unique format when displaying text data including a formatting tag for setting at least text formatting,
A tag extraction step for extracting at least a part of the formatting tag from the text data;
Tag saving processing means stores the extracted formatting tag together with position information in the text data in the tag storage means, and performs tag saving processing for removing the formatting tag from the text data Retreat step,
Singular display character string extraction processing means, a singular display character string extraction step of extracting a character string to be displayed using a singular format from the text data after saving the tag,
A singular format tag writing processing means for writing a format tag corresponding to the singular format into the text data;
The tag restoration processing means reads the formatting tag and position information from the tag storage means, and performs tag restoration processing for writing the formatting tag according to the position information to the text data output from the singular formatting tag writing processing means. Tag return step,
A data display method, wherein the display processing means includes a display step of displaying text data in accordance with the formatting tag. A data display method capable of displaying a partial character string of text data in a predetermined unique format when displaying text data including a formatting tag for setting at least text formatting,
A tag extraction step for extracting at least a part of the formatting tag from the text data;
A tag sequence replacement processing unit that replaces the extracted formatting tag with a predetermined replacement character, and stores the replaced formatting tag in the tag sequence storage unit in the order of appearance,
Singular display character string extraction processing means extracts a singular display character string extraction step for extracting a character string to be displayed using a singular format from the text data after tag replacement.
A singular format tag writing processing means for writing a format tag corresponding to the singular format into the text data;
A tag order reverse replacement step in which the tag order reverse replacement processing means replaces the characters replaced in the tag order replacement step with the formatting tags read in order from the tag order storage means again in the order of the order;
A data display method, wherein the display processing means includes a display step of displaying text data in accordance with the formatting tag. A data display method capable of displaying a partial character string of text data in a predetermined unique format when displaying text data including a formatting tag for setting at least text formatting,
A tag extraction step for extracting at least a part of the formatting tag from the text data;
A tag replacement step in which tag replacement processing means replaces the extracted formatting tag with a predetermined code based on a tag replacement database provided in advance;
Singular display character string extraction processing means extracts a singular display character string extraction step for extracting a character string to be displayed using a singular format from the text data after tag replacement.
A singular format tag writing processing means for writing a format tag corresponding to the singular format into the text data;
A data display method, wherein the display processing means includes a display step of displaying text data in accordance with the formatting tag. In the data display method,
The data display method according to any one of claims 13 to 15, wherein the display state setting means can switch between a singular display state in which display using a singular format is performed and a normal display state in which normal display is performed. In the configuration in which the text data includes at least symbols or formulas used in natural science (hereinafter referred to as scientific symbols),
The unique display character string extraction step includes:
Using a scientific symbol database in which one or more character strings used as scientific symbols and expression conditions for expressing the character strings are stored in advance.
A scientific symbol extraction process of extracting a scientific symbol candidate character string from the text data by referring to the scientific symbol database by a scientific symbol extraction processing unit;
A character string display determination processing unit that determines a display mode of the scientific symbol candidate character string by collating with the expression condition by a character string display determination processing unit,
The data display method according to any one of claims 13 to 16, wherein in the unique format tag writing step, a format tag according to the display mode is written.

Images