JP2006155147A - Content conversion system and computer program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To appropriately divide the original contents before division at the time of dividing and providing the contents of a Web page where the display layout of contents parts (image, text and hyper-link or the like) is designated by using tag description such as HTML to a portable terminal or the like. <P>SOLUTION: This content conversion system includes: a dividing part 12 for determining division points in contents data, based on a distance on data description between contents components in contents data, and for dividing the contents data, based on the result; and a reconfiguring part 13 for reconfiguring the divided data as contents data. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a content conversion system and a computer program.

In recent years, connecting to the Internet from a mobile phone network has been realized, and a user can access a Web site on the Internet using a mobile terminal such as a mobile phone. Generally, since a portable terminal has a small memory capacity and a small display screen size, a standard Web page for a personal computer cannot be displayed as it is. For this reason, the prior art for dividing | segmenting a web page and providing to a portable terminal sequentially is disclosed by patent document 1, for example. In this prior art, a tag break is detected from content data described in HTML (HyperText Markup Language), and the content is divided before and after the tag break based on the upper limit of the capacity to the portable terminal. In addition, when there is a line feed tag or a heading tag, the line feed tag or the heading tag is divided into front and back sides. For the table in the content, the number of divisions is determined based on the upper limit of the capacity to the mobile terminal.
JP 2001-229106 A

  However, with the above-described conventional technology, it is possible to divide a simple Web page configuration composed of text and a table without much problem, but it is difficult to perform appropriate division for various Web page configurations. There is. For example, in the case of a Web page on which a plurality of articles consisting of images and text are posted, the image and text are separated by simply dividing at the tag breaks or by line break tags or heading tags according to the above-mentioned conventional technology. There is a risk that it will be very difficult to see. Also, in the case of a Web page that has a hierarchical layout with table tags hierarchized, according to the above-described conventional technology, the page tag is divided into a plurality based on the upper limit of the capacity to the mobile terminal. The image of a web page can be very damaged.

  The present invention has been made in consideration of such circumstances, and its purpose is that a content such as a Web page is composed of content parts such as an image, text, and a hyperlink, and a tag such as HTML is used. When the display layout of the content component is specified using a description, when the content is divided and provided to a mobile terminal or the like, the content of the original content before the division may be appropriately divided It is to provide a content conversion system that can be used.

  Another object of the present invention is to provide a computer program for realizing the content conversion system of the present invention using a computer.

  In order to solve the above-described problem, a content conversion system according to the present invention is content data for displaying content composed of content components displayed on a screen on a terminal, and the display layout of the content components is a tag. In the content conversion system that divides content data described by using, the division point in the content data is determined based on the data description distance between the content parts in the content data, and based on the result And dividing means for dividing the content data, and reconstruction means for reconfiguring the divided data as the content data.

  In the content conversion system according to the present invention, the dividing means calculates the distance by integrating the nesting depths of all tags described between two content parts.

  In the content conversion system according to the present invention, the dividing means determines the maximum value point of the distance as a dividing point.

  In the content conversion system according to the present invention, the dividing unit performs re-division according to the distance and the number of content parts in the divided data.

  A computer program according to the present invention is content data for displaying content composed of content components displayed on a screen on a terminal, and content data in which a display layout of the content component is described using a tag. A computer program for converting content to be divided, wherein a division point in the content data is determined based on a data description distance between content parts in the content data, and based on the result, the content A division function for dividing data and a function for reconfiguring the divided data as the content data are realized by a computer.

  In the computer program according to the present invention, the division function calculates the distance by integrating the nesting depths of all the tags described between two content parts.

  In the computer program according to the present invention, the dividing function determines the maximum value point of the distance as a dividing point.

In the computer program according to the present invention, the dividing function performs re-division according to the distance and the number of content parts in the divided data.
As a result, the above-described content conversion system can be realized using a computer.

  According to the present invention, since the division point is determined based on the content content division, it is possible to appropriately divide the content of the original content before the division.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
The content according to the present invention is composed of content parts such as images, texts, and hyperlinks, and the display layout of the content parts is specified using a tag description such as HTML. The content data is, for example, HTML data for displaying the content. In the present embodiment, a Web page will be described as an example of content according to the present invention.
FIG. 1 is a block diagram showing a configuration of a content conversion system 1 according to an embodiment of the present invention. In FIG. 1, the content conversion system 1 includes a content acquisition unit 11, a division unit 12, and a reconstruction unit 13.

  The content conversion system 1 is connected to a communication network. And the content conversion system 1 can transmit / receive data between the portable terminals 20 via communication networks, such as a mobile telephone network. In addition, the content conversion system 1 can acquire content data for displaying a Web page provided by the Web server 30 by accessing the Web server 30 provided on the Internet.

  The portable terminal 20 has a web browser 21 that realizes browsing of various web pages.

  In the content conversion system 1 of FIG. 1, the content acquisition unit 11 receives a Web page acquisition request from the Web browser 21 that operates on the mobile terminal 20, and acquires content data from the Web server 30 in accordance with this request. The content data is for displaying a Web page composed of content parts (image, text, hyperlink, etc.) displayed on the screen on the terminal, and the display layout of the content parts is described using tags. Yes. Specifically, the content data is HTML data described in HTML.

  The dividing unit 12 analyzes the HTML data acquired by the content acquiring unit 11, and determines a dividing point in the HTML data based on the distance in the HTML description between the content parts in the HTML data. Then, based on this result, the HTML data is divided. The content component is displayed on the Web page, and is, for example, an image, a text, a hyperlink, or the like.

  The reconstruction unit 13 adds a header or the like to each HTML data after the division by the division unit 12, and reconfigures the data as complete HTML data. Then, the reconfigured HTML data is sequentially returned to the mobile terminal 20 in response to a request from the Web browser 21.

  The content conversion system 1 may be realized as an independent device as shown in FIG. 1, or may be implemented inside the Web server 30 or the portable terminal 20.

  Further, the content conversion system 1 may be realized by dedicated hardware, or is constituted by a general-purpose computer system such as a personal computer, and realizes each function of the content conversion system 1 shown in FIG. The function may be realized by executing a program to do so.

  Next, the operation | movement which concerns on the content conversion by the content conversion system 1 of this embodiment is demonstrated.

  In the present embodiment, the division point in the HTML data is determined based on the distance on the HTML description between the content parts in the HTML data for displaying the Web page. The content component is displayed on a Web page such as an image, text, or hyperlink. The distance in HTML description (hereinafter simply referred to as distance) is obtained by integrating the nesting depth of all tags described between two content parts in HTML data. The depth of tag nesting represents the degree of partitioning of the display layout in the Web page.

  Therefore, in the display layout in the Web page, the distance between the close content components is short, while the distance between the distant content components is long. In particular, the tendency is strong in a Web page that implements a complex layout using Table tags and the like in multiple stages. For this reason, the division point in HTML data is determined on the assumption that the content parts are more distant from each other as the distance between the content parts is longer.

  Hereinafter, operations related to content conversion will be described in detail.

First, the operation of the dividing unit 12 shown in FIG. 1 will be described.
First, the dividing unit 12 analyzes the HTML data acquired by the content acquiring unit 11 and detects content parts in the HTML data. In this detection process, a comment line surrounded by comment tags and a Java (registered trademark) script are excluded from detection targets. In addition, the content parts are detected in the following three types (A-1) to (A-3).

(A-1) <img> tag
An <img> tag includes an image file (image content component).
However, if there is no value in the alt attribute, such as “alt =” ”, it is excluded from the detection target. However, if the image is a certain size or larger (for example, the vertical size is 100 pixels or more and the horizontal size is 100 pixels or more), it is not excluded even if the alt attribute has no value. Also, an <img> tag including two or more appearing identical image files is excluded from detection targets.

(A-2) Portion surrounded by <a> and </a> This portion includes various content components such as <img> tag, hyperlink, text and the like. When a plurality of content parts are included, the plurality of content parts are handled as one content part.

(A-3) Text other than the part enclosed by <a> and </a> in (A-2) above

  Next, the dividing unit 12 performs the following processes (B-1) to (B-4) on the HTML description relating to the detected content part. These processes are intended to appropriately maintain the display contents of the Web page displayed using the divided HTML data.

(B-1) Character decoration tags such as <font>, <br>, <b>, <small> are deleted.

(B-2) A relative URL (Uniform Resource Locator) is changed to an absolute URL. Further, the content is changed via the content conversion system 1. Thereby, even when a new Web page is acquired from the divided Web page, the content conversion system 1 can be used.

(B-3) Special symbols such as “&nbsp;” (representing a space) are deleted.

(B-4) A predetermined unnecessary text is deleted. This deletion target text is preset in a memory or the like.

  Next, the dividing unit 12 calculates the depth of nesting in the HTML data for all the detected content parts and all tags not included in the HTML description relating to the content parts. In this calculation process, a portion surrounded by <body> and </ body> is targeted. The depth of the content component is the same as the depth of the tag described immediately before the content component. For tags that are not included in content parts, the depth of tags that do not have an end tag (such as <input ~>, <img> that does not have alt) is the same as the depth of the tag described immediately before the tag. To do. Then, using the depths of <body> and </ body> as a reference (reference value “0”), each time the nest becomes one step deeper, one is added to calculate the nest depth. Also, every time the nest becomes shallower, 1 is subtracted from the depth of the nest.

  Next, the dividing unit 12 integrates the nesting depth of all tags described between two adjacent content parts. The value of this integration result is the distance between the two content parts. FIG. 2 is a flowchart of a process for calculating a distance between content parts. FIG. 3 is a graph for explaining the distance between the content parts. In FIG. 3, the distance Sab between the content components 101 and 102 is calculated. Hereinafter, with reference to FIG. 2, a method for calculating the distance between content parts will be described based on the example of FIG.

  In FIG. 2, in steps S1, variables Sa and Sb are initialized to zero. Also, the variable i is set to the tag order xa of the content component 101 in FIG.

Next, in step S2, the absolute value of the difference between the nesting depth ya of the content component 101 and the value of the function f _ab (i) is added to the variable Sa. The function f _ab (i) represents the depth of tag nesting in the tag order i.

Next, in step S3, the absolute value of the difference between the nesting depth yb of the other content part 102 in FIG. 3 and the value of the function f _ab (i) is added to the variable Sb.

  Next, in step S4, it is determined whether the variable i is less than the tag order xb of the content component 102.

  If the variable i is less than the tag order xb of the content component 102, 1 is added to the variable i (step S5), and the process returns to step S2.

  On the other hand, when the variable i reaches the tag order xb of the content component 102, the larger value of the variables Sa and Sb is set as the distance Sab between the content components 101 and 102.

  In this way, the dividing unit 12 calculates the distances between all the content parts.

  Next, the dividing unit 12 groups the detected content parts. FIG. 4 is a flowchart of content part grouping processing. Hereinafter, a method of grouping content parts will be described with reference to FIG.

  In FIG. 4, in step S11, first, all the detected content parts are incorporated into one group, and a pointer is placed in this group (a group having a pointer is referred to as group p).

  Next, in step S12, it is determined whether the number of content parts in the group p is two or more. As a result, when there are two or more, the process proceeds to step S13, and when there are less than two, the process proceeds to step S20.

  Next, in step S13, an average value A of the distances between the content parts in the group p is calculated.

  Next, in step S14, the maximum value of the distance between the content parts in the group p is acquired. Here, the number of content component pairs having the maximum distance is not limited to one, and there may be a plurality of pairs.

  Next, in step S15, it is determined whether the maximum value of the acquired distance is equal to or greater than a constant N1 times the average value A. As a result, if the constant N1 times or more, the process proceeds to step S16, whereas if it is less than the constant N1, the process proceeds to step S18.

  Next, in step S16, the content parts in the group p are grouped into a new group on the boundary of one of the pair of content parts having the maximum value of the distance (the content part arranged behind the HTML description). . Here, if there are N pairs of content parts having the maximum distance, the number of new groups is (N + 1).

  Next, in step S17, the pointer is moved to the first group (the group arranged at the forefront in the HTML description) among the new groups, and the process returns to step S12.

  In step S18, it is determined whether the maximum value of the distance acquired in step S14 is equal to or greater than a constant N2 times the average value A. As a result, if the constant is N2 times or more, the process proceeds to step S19, whereas if it is less than the constant N2 times, the process proceeds to step S20.

  Next, in step S19, when the content parts in group p are grouped into a new group with one of the pair of content parts having the maximum distance as a boundary, the content in the group in all of the new groups. It is determined whether the number of parts is a constant N3 or more. As a result, if the value is greater than or equal to the constant N3, the process proceeds to step S16, whereas if it is less than the constant N3, the process proceeds to step S20.

  Next, in step S20, it is determined whether or not there is a pointer in the current last group (group arranged at the last position in the HTML description). As a result, if there is a pointer in the current last group, the process ends. On the other hand, if there is no pointer in the current last group, the pointer is moved to the next rear group and the process returns to step S12 (step S21).

  The constants N1, N2, and N3 described above are set in advance to arbitrary values. For example, constant N1 = 5.0, constant N2 = 3.0, and constant N3 = 4.

FIG. 5 is a diagram for specifically explaining the above-described method of grouping content parts.
In FIG. 5, n content parts (hereinafter may be simply referred to as parts) are detected from HTML data for displaying a Web page. The average distance between all these parts is 2. In addition, there are two component pairs having a maximum distance “10” between the components, and both are N1 (5) times or more of the average value “2”. Thus, the initial group p is divided at each end of the two pairs of parts having the maximum distance “10” between the parts. As a result, a group x from parts 1 to 5, a group y from parts 6 to m-1, and a group z from parts m to n are formed. The division determination process is further repeated for these new groups.

  And about the group x, the average value of the distance between all the components in a group is 1.5. The maximum distance between components is less than N1 (5) times the average value “1.5”, but more than N2 (3) times the average value “1.5”. There are two or more parts. Thereby, the group x is divided at one end of the pair of parts having the maximum value of the distance between the parts. As a result, group 1 of parts 1 and 2 and group 2 of parts 3 to 5 are formed.

  In this way, the dividing unit 12 groups the content parts in the HTML data acquired by the content acquiring unit 11.

Next, the dividing unit 12 divides the HTML data acquired by the content acquisition unit 11 for each group that has been grouped.
The above is the description of the operation of the dividing unit 12.

Next, the operation of the reconstruction unit 13 shown in FIG. 1 will be described.
The reconstruction unit 13 receives the divided HTML data from the dividing unit 12. Then, header assignment and hierarchization are performed on each piece of HTML data, and the data is reconfigured as complete HTML data. A group name is generated for each reconstructed HTML data. For example, a part (for example, the first 10 characters) of the file name of the content of any content component in the group is used.

  Next, the reconfiguration unit 13 sequentially returns the reconfigured HTML data to the mobile terminal 20 in response to a request from the Web browser 21. This return order is a group order in which the average distance between parts is large.

  6 and 7 are diagrams illustrating specific examples of content conversion according to the present embodiment. FIG. 6 shows an example of HTML data for displaying a Web page. FIG. 7 shows an example of Web page division by content conversion processing according to the present embodiment.

  The HTML data 200 in FIG. 6 displays the Web page 300 shown in FIG. In FIG. 6, HTML data 200 is divided into three groups 201, 202, and 203 by the content conversion processing according to the present embodiment. These groups 201, 202, and 203 correspond to the divided portions 301, 302, and 303 of the Web page 300 in FIG. Therefore, when the groups 201, 202, and 203 are reconfigured as HTML data, the divided portions 301, 302, and 303 can be displayed on the screen of the mobile terminal.

  As described above, according to the present embodiment, the division point in the HTML data is determined based on the distance on the HTML description between the content parts in the HTML data for displaying the Web page. The content component is displayed on the Web page. As a result, since the division point is determined based on the division of the Web page content, it is possible to appropriately divide the content of the original Web page before the division.

Further, the program for realizing the function of the content conversion system 1 shown in FIG. 1 is recorded on a computer-readable recording medium, and the program recorded on the recording medium is read into the computer system and executed to execute the content. Conversion processing may be performed. Here, the “computer system” may include an OS and hardware such as peripheral devices.
Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
The “computer-readable recording medium” means a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a CD-ROM, a hard disk built in a computer system, etc. This is a storage device.

Further, the “computer-readable recording medium” means a volatile memory (for example, DRAM (Dynamic DRAM) in a computer system that becomes a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line. Random Access Memory)), etc., which hold programs for a certain period of time.
The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design changes and the like within a scope not departing from the gist of the present invention.
For example, the method for calculating the distance between content parts is not limited to the above-described embodiment. The number of all tags included between content parts may be simply used as the distance between the content parts.

It is a block diagram which shows the structure of the content conversion system 1 which concerns on one Embodiment of this invention. It is a flowchart of the process which calculates the distance between content components. It is a graph for demonstrating the distance between content components. It is a flowchart of the grouping process of content parts. It is a figure for demonstrating the grouping method of content components concretely. It is a figure which shows an example of the HTML data 200 for displaying a web page. It is a figure which shows the example of a division | segmentation of the web page by the content conversion process which concerns on one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Content conversion system, 11 ... Content acquisition part, 12 ... Dividing part, 13 ... Reconstruction part.

Claims (8)

In a content conversion system that divides content data for displaying content composed of content components displayed on a screen on a terminal, wherein the content component display layout is described using tags,
A dividing means for determining a dividing point in the content data based on a distance in data description between content parts in the content data, and dividing the content data based on the result;
Reconstructing means for reconstructing the divided data as the content data,
A content conversion system comprising:   The content conversion system according to claim 1, wherein the dividing unit calculates the distance by integrating the nesting depth of all tags described between two content parts.   The content conversion system according to claim 1, wherein the dividing unit determines the maximum value point of the distance as a dividing point.   The content conversion system according to claim 1, wherein the dividing unit performs re-division according to the distance and the number of content parts in the divided data. Content data for displaying content composed of content components displayed on the screen on a terminal, and for content conversion for dividing content data in which the display layout of the content component is described using a tag A computer program,
A division function for determining a division point in the content data based on a distance in data description between content parts in the content data, and dividing the content data based on the result;
A function of reconfiguring the divided data as the content data,
A computer program for causing a computer to realize the above.   The computer program according to claim 5, wherein the division function calculates the distance by integrating the nesting depth of all tags described between two content parts.   The computer program according to claim 5, wherein the division function determines a maximum value point of the distance as a division point. 6. The computer program according to claim 5, wherein the division function performs re-division according to the distance and the number of content parts in the divided data.

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