JP2006244199A - Electronic file writing system, program, and method of reflecting write information to electronic file - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic file writing system or the like capable of reflecting write information written in an optional text group included in an electronic file, to the corresponding text group. <P>SOLUTION: This electronic file writing system 1 comprises an information terminal 100 for writing into the electronic file, and a server 50 for storing the electronic file. The information terminal 100 is provided with a writing means 120 for the writing into the electronic file, and a transmission means 130 for transmitting written detail information including write information as to information written by the writing means 120 and position information thereof, to the server 50, and the server 50 is provided with a storage means for storing the received written detail information, and text group specifying information for specifying the text group with the written information generated based on the position information, and an information reflecting means 60 for reflecting the stored written information to the electronic file, based on the text group specifying information. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electronic file writing system, a program, and a method for reflecting write information in an electronic file for writing to the electronic file.

  2. Description of the Related Art In recent years, electronic files such as Web files browsed via the Internet or an intranet are not limited to simply providing information, and various usage methods are known. One example is an electronic education system (e-learning system) (see, for example, Patent Document 1). This electronic education system is a self-study type education system in which an electronic file serving as a teaching material is browsed by a user (student) using the Internet or the like to advance learning.

This educational system not only provides more effective multimedia teaching materials using figures, videos, etc., but also eliminates the need for a large group of students to gather at one location, thus reducing costs. It is feasible to significantly reduce the amount of learning, and the user (student) has the advantage of being able to proceed with learning according to his / her convenience. Furthermore, it is not necessary to distribute printed materials as teaching materials to a large number of students, and it is easy to update the teaching materials as the contents change. This electronic education system is also being introduced to promote learning in a form.
JP-A-11-282826

  However, when the user proceeds with learning, when writing writing information such as memos and markings to electronic files that are teaching materials, usually the teaching materials are printed out, and the printed out output We do complicated work such as writing notes and marking. In addition, even if you can write notes and markings on the electronic file itself that is the teaching material, it consists of two layers, a display layer for displaying the electronic file and a writing layer for performing the writing. The display size of the electronic file is always fixed. Therefore, the user cannot change the display size of the electronic file to a desired size. Furthermore, when the contents of the learning material are changed and newly updated, it is difficult to specify the position of the writing information, and the writing information cannot be reflected.

  In view of the above problems, the present invention is directed to an electronic file writing system, a program, and an electronic file that can reflect writing information written in an arbitrary text group included in a text document of an electronic file in the corresponding text group. It is an object of the present invention to provide a writing information reflecting method.

  An electronic file writing system according to the present invention includes an information terminal for writing to an electronic file including one or more text groups, and a server connected to the information terminal and storing the electronic file. The information terminal is a writing detail including writing means for writing to an electronic file, writing information relating to information written by the writing means, and position information indicating a position of the writing information on the electronic file Transmitting means for transmitting information to the server, and the server stores the received write detailed information and the text group specifying information for specifying the text group to which the write information generated based on the position information belongs. Storage means to store the written information stored on the basis of the text group identification information And writing information reflecting means for reflecting the Airu, characterized in that it comprises a.

  In addition, the writing information reflecting method to the electronic file of the present invention includes an information terminal for writing to an electronic file including one or more text groups, and a server connected to the information terminal and storing the electronic file. A write information reflecting method to an electronic file of a configured network system, wherein the information terminal writes to the electronic file, the write information about the information written by the write step, and the electronic file of the write information A transmission step of transmitting write detailed information including the position information indicating the upper position to the server, and the write detailed information received by the server and the text to which the write information generated based on the position information belongs. A memory step for storing text group identification information for identifying the group , The stored written information, based on the text group specific information, and executes the write information reflecting step of reflecting the electronic file, a.

  According to these configurations, based on the information for specifying the text group, the text group to which the writing information written on the electronic file such as a Web file belongs can be specified, and the writing information can be reflected. Even if the display size of the display screen is changed, the writing information can be correctly reflected in the corresponding text group.

  In this case, the server has the characteristics of all of the old text group that is the text group included in the electronic file at the time of storing the writing information and the new text group that is the text group included in the electronic file at the time of reflecting the writing information. A text group feature quantity calculating means for calculating a text group feature quantity as a quantity, and the storage means stores the text group feature quantity of the old text group and the text group feature quantity of the new text group as text group specifying information. The writing information reflecting means preferably specifies the corresponding text group based on the text group feature amount of each old text group and the text group feature amount of each new text group, and reflects the writing information.

  According to this configuration, the text group specifying information of the text group, that is, the feature amount of the text group is calculated for all the text groups included in the electronic file, and the writing written in the electronic file is performed based on the calculated feature amount. Since the information is reflected, for example, even when the order of the text groups is changed, it is possible to correctly specify the text group to which the writing information belongs and reflect the writing information.

  Also, in this case, the server uses the updating means for updating the electronic file and the text group matching for associating each old text group with each new text group using the text group feature values of all stored text groups. The difference between the means, the text group feature value of each old text group, and the text group feature value of each new text group associated with each old text group by the text group matching means is less than a predetermined threshold value. A text group determination unit that determines whether or not the text file feature amount calculation unit calculates the text group feature amount of the new text group as the text group feature amount of the new text group. The text group feature amount of the group is calculated, and the storage means uses the text group at the time of the update just before reflecting the writing information as the text group feature amount of the new text group The collected amount is stored, and the writing information reflecting means corresponds to the combination of the old text group and the new text group, which is determined by the text group determining means that the difference between the two text group feature amounts is less than a predetermined threshold. It is preferable to specify as a text group and reflect writing information.

  According to this configuration, as a result of matching, a combination in which the difference between the feature amounts of two associated text groups is less than a predetermined threshold is specified as the corresponding text group, that is, text having a certain degree of similarity or more. Since the group combination is specified as the corresponding text group, even if the electronic file is updated and the contents are slightly changed, the corresponding text group is correctly set with respect to the previous text group. It is possible to identify and reflect the write information.

  Further, since the storage unit stores the text group feature amount at the time of storing the writing information and the text group feature amount at the time of updating immediately before the writing information reflection, the server can store each of the information terminals even when there are a plurality of information terminals. The text group feature amount need not be calculated every time an electronic file transmission request is sent from the information terminal. In particular, when the number of information terminals reaches several tens or several hundreds, a considerable load can be reduced. In addition, since the text group feature quantity calculated immediately before reflecting the writing information is stored as a new text group feature quantity, the electronic file is updated multiple times before the writing information is reflected In addition, it is not necessary to store all the text group feature values calculated for each update, and the memory capacity can be saved.

  In these cases, the writing information is memo writing information composed of at least one of image data, text data, and audio data, and the storage means further stores order information regarding the order of each text group, When the text group to which the writing information belongs is deleted by updating the file, the writing information reflecting means reflects the writing information to the text group located immediately before or after the text group to which the writing information belongs based on the order information. It is preferable.

  According to this configuration, the memo information can be reflected even when the text group to which the memo information written in the electronic file belongs is deleted by updating the electronic file. Furthermore, since the memo writing information is reflected to the text group located immediately before or immediately after the text group to which the memo writing information belonged before the update, the user who reflected the memo writing information in another text group It is possible to reduce as much as possible the uncomfortable feeling that may be held. Further, when the memo information is an image or sound, the image drawn by the user or the sound pasted on the electronic file is reproduced as it is, so that the degree of freedom of the writing process by the user can be further increased.

  In these cases, the writing information includes marking information related to the marking of the characters included in the text group, and the storage means further stores character specifying information for specifying the marked characters and writes them. The information reflecting means specifies the text group to which the marked character belongs based on the text group specifying information, further specifies the marked character based on the stored character specifying information, and writes information Is preferably reflected.

  According to this configuration, the user can specify the character string to which the writing information (marking information) written in the electronic file belongs based on the information for specifying the character string and reflect the writing information. The marking information can be written in the electronic file without being restricted by the display size of the display screen.

  In this case, an old character string that is one or more character strings delimited by punctuation marks and / or line feed positions included in the old text group, and the one or more character strings included in the new text group corresponding to the old text group And a character string feature amount calculating means for calculating a character string feature amount that is a feature amount of each of the new character strings, and the storage means includes character string features of each old character string as character specifying information. Amount and the character string feature amount of each new character string, and the writing information reflecting means identifies the corresponding character string based on the character string feature amount of each old character string and the character string feature amount of each new character string. It is preferable to reflect the write information.

  According to this configuration, by associating the character strings based on the calculated character string feature amount, the new character string corresponding to the old character string to which the marking information belongs is specified, and the marking information is reflected. Therefore, even if the order of the character strings constituting the text group is changed, the character string to which the marking information belongs can be specified and reflected. However, in this case, the marking information is reflected in character string units.

  In this case, the character string matching means for associating each old character string with each new character string using the character string feature values of all stored character strings, and the character string feature values of each old character string, A character string determination unit that determines whether the difference between the character string feature amount of each new character string that is associated with each old character string by the character string matching unit is less than a predetermined threshold. The writing information reflecting means specifies the combination of the old character string and the new character string, as a corresponding character string, determined by the character string determining means that the difference between the two character string feature values is less than a predetermined threshold, It is preferable to reflect the writing information.

  According to this configuration, as a result of matching, a combination in which the difference between the feature amounts of two associated character strings is less than a predetermined threshold is specified as the corresponding character string, that is, a character having a certain degree of similarity or more. Since the combination of columns is specified as the corresponding character string, even if the electronic file is updated and the contents are slightly changed, the corresponding character string is correctly set with respect to the original character string. It is possible to identify and reflect the write information.

  In these cases, the character specifying information further includes text data indicating the marked character, and the writing information reflecting means specifies the character string to which the marked character belongs, and then based on the text data. Thus, it is preferable to further specify the marked character and reflect the written information.

  According to this configuration, even if the marked character is a character (for example, a word) that is less than the character string delimited by the punctuation marks and / or the line feed position, the marking is not detected from the corresponding character string. It is possible to reflect the written information by specifying the performed character.

  In these cases, it is preferable that the storage unit further stores marking type information related to information indicating the type of marking.

  According to this configuration, various markings such as straight lines, wavy lines, double lines, underlines, dotted lines can be written and reflected in the electronic file.

  The program of the present invention causes a computer to function as each means in the electronic file writing system described in any one of the above.

  According to this configuration, it is possible to provide a program for reflecting the writing information written in an arbitrary text group included in the text document of the electronic file in the corresponding text group.

  Hereinafter, an electronic file writing system, a program, and a method for reflecting write information in an electronic file according to the present invention will be described in detail with reference to the accompanying drawings. The electronic file writing system of the present invention is an e-learning system in which, for example, an electronic file such as a web file browsed via the Internet or an intranet is used as a teaching material, and a user (student) proceeds with learning using the electronic file. This is a system for a user to write notes and markings on an electronic file as used.

  As shown in FIG. 1, the electronic file writing system 1 according to the present embodiment includes a server 50 that stores an electronic file EF (see FIG. 3) and write information 81 (see FIG. 2), and a network 150 connected to the server 50. And a client PC (hereinafter simply referred to as a PC) 100 (shown as three in the figure) serving as an information terminal for writing to the electronic file EF.

  The PC 100 includes a WWW browser 106 (see FIG. 2), and when a user tries to view the electronic file EF via the WWW browser 106, the PC 100 requests the server 50 to transmit the electronic file EF. Then, the electronic file EF transmitted from the server 50 in response to the request is received and displayed on the display 109 (see FIG. 2). Further, writing means 120 for performing writing such as marking and memo writing on the displayed electronic file EF, writing information 81 written by the user using the writing means 120, and the electronic file of the writing information 81 Transmission means 130 for acquiring write detailed information 80 (both see FIG. 2) including position information 82 indicating the upper position and transmitting it to the server 50. The main part of the writing means 120 is composed of the keyboard 110 and the mouse 111 shown in FIG.

  The server 50 includes an electronic file database DB1 that stores the electronic file EF, and a write information database DB2 that stores the write detailed information 80 received from the PC 100. The server 50 also includes a data processing unit 60 (write information reflecting means). The data processing unit 60 reflects the write information 81 in the electronic file EF in response to an electronic file EF transmission request from the PC 100. Various processes are performed, and the electronic file EF reflecting the write information 81 is transmitted to the PC 100 in cooperation with the network interface (NT-I / F) 54 (see FIG. 2).

  Next, the hardware configuration of the server 50 and the PC 100 will be described with reference to FIG. The server 50 includes a network interface (NT-I / F) 54 that is a data transmission / reception unit with the network 150, a CPU 51 that controls various processes executed by the server 50, a ROM 52 that stores processing programs, and a RAM 53 that serves as a work area. , And a hard disk 55 that stores an electronic file database DB1, a write information database DB2, and the like, which are connected to each other via a system bus 56. Note that an OS 57 is installed in the hard disk 55. Further, in the write information database DB2, in addition to the write detailed information 80 (write information 81, position information 82) received from the PC 100, the text group specifying information 90 and the character specifying information 95 (for details) generated based on the position information 82 are stored. Is stored).

  Further, the server 50 has an updating means 70 (see FIG. 1) for updating the electronic file EF, and overwrites the original file with the electronic file EF updated by changing the contents of the electronic file EF. Can be stored. The hard disk 55 of the server 50 is installed with a write information reflecting program P for performing various processes for reflecting the write information 81 on the electronic file EF.

  On the other hand, the PC 100 includes a network interface (NT-I / F) 104 that is a data transmission / reception unit with the network 150, a CPU 101 that controls various processes executed by the PC 100, a ROM 102 that stores processing programs, and a RAM 103 that serves as a work area. , Various application programs 107 including the WWW browser 106, the hard disk 105 in which the OS 108 is installed, the display 109 for browsing the electronic file EF, and the user's write and save operations on the browsing electronic file EF And a mouse 111 are connected to each other via a system bus 112.

  Further, writing operations such as memo writing and marking performed by the user on the electronic file EF will be described with reference to FIGS. As shown in FIG. 3, the electronic file EF includes, for example, one or more text groups T (T1 to T4) delimited by blank lines W, and each text group T includes punctuation marks and / or line feed positions. One or more character strings S to be delimited are included (in this embodiment, character strings delimited by punctuation marks). In addition, a save button 200 for saving write information is arranged above the electronic file EF, and the user selects the save button 200 after writing such as memo writing or marking. Save write information.

  FIG. 4 shows an operation procedure in which the user writes a memo in the electronic file EF. As shown in the figure, the user first moves the cursor K to a desired position to write a memo using the mouse 111 or the keyboard 110, displays the menu M1 by, for example, a right click operation, and performs “create new memo”. Make a selection (see (a) of the figure). By selecting “Create new memo”, the memo writing box MB is displayed, and the memo writing is written in the memo writing box MB (see FIG. 5B). Finally, in order to save the written memo, the save button 200 is selected (see (c) in the figure).

  FIG. 5 shows a marking operation procedure in which the user marks characters included in the electronic file EF. As shown in the figure, first, the cursor K is moved to a desired position for marking using the mouse 111 or the keyboard 110, and the menu M1 is displayed by, for example, a right click operation, and "Create new marking" is selected ( (See (a) of the figure). Then, the range for marking is designated. For example, when dragging with the mouse 111, click at the start position of the marking range (see (b) in the figure) and drag the mouse as it is to end the dragging at the end position of the marking range (see ( c)).

  Note that the present invention is not limited to this operation, and any operation that can specify a marking range can be used. Finally, in order to save the written marking, the save button 200 is selected (see FIG. 4D). In such a procedure, when the user performs writing such as memo writing or marking on the electronic file EF, and the next time the user views the electronic file EF, the memo writing or marking is performed on the electronic file EF as shown in FIG. Is written and reflected. Further, when a plurality of pieces of write information 81 are written, the plurality of pieces of write information 81 may be stored collectively.

  When the user saves the write information, the PC 100 acquires the write information 81 and the position information 82 indicating the position of the write information 81 on the electronic file EF, and transmits it to the server 50 as the write detailed information 80. “Writing information” refers to “at least one of image data, text data, and audio data that has been written down” when writing is written down, and “marked” when writing is marked up. Text data of characters ". “Position information” is information related to “text group T to which the memo writing belongs” when the writing is memo writing. When the writing is marking, “the text group T to which the marked character belongs and This is information relating to the character string S to which the character belongs.

  Further, the writing information 81 includes font information related to the written memo and marking font and color information related to the color. In the case where the writing is memo writing, the position information in the “text group T to which the memo writing belongs” is not particularly stored in the present embodiment, but of course the position information in the “text group T to which the memo writing belongs” is stored. The structure which memorize | stores may be sufficient. In this case, the position information is information regarding “a text group T to which the memo writing belongs and a character string S including a position specified as a memo writing creation position”, as in the case of marking.

  Further, when the server 50 stores the write detailed information 80 received from the PC 100 in the write information database DB2, the text group T to which the written memo writing belongs is based on the position information 82 included in the received write detailed information 80. Text group specifying information 90 (see FIG. 2) for specifying the character and character specifying information 95 (see FIG. 2) for specifying the marked character are generated and further stored in the writing information database DB2.

  Here, generation of the text group specifying information 90 and the character specifying information 95 will be described in detail. The text group specifying information 90 means a feature amount of each text group T (see FIG. 3) included in the electronic file EF (hereinafter referred to as a text group feature amount Tv). The calculation of the text group feature amount Tv of T will be described (text group feature amount calculation means). The text group feature amount Tv is a multidimensional vector whose elements are TFIDF values of each word obtained by morphological analysis of the text group T. Briefly describing the morphological analysis, for example, the text group T is analyzed using a Japanese dictionary (not shown) stored in the hard disk 55 shown in FIG.

  When morphological analysis is performed on a sentence “data link has various features and access methods” which is a part of the text group T1 shown in FIG. 3, “data” “link” “ni” “ha” “Various” “N” “Feature” “Y” “Access” “Method” “Ga” “Yes”. The TFIDF (Term Frequency Inverse Document Frequency) value is obtained by normalizing the number of times a certain word appears in predetermined text data according to the amount of the text data.

In the present embodiment, as the TFIDF value, for example, if the TFIDF value of the word “data” included in the text group T1 (see FIG. 3) is obtained,
TF = number of words of “data” included in the text group T1 / number of all words included in the text group T1 ×
IDF = LOG (total number of text group T included in electronic file EF / number of text group T including word “data”).

  For all the words included in the text group T1 obtained by the morphological analysis, by obtaining the TFIDF value as described above, a multidimensional vector having each word as an axis and the TFIDF value of each word as an element is obtained. The text group feature amount Tv1 of the text group T1 is calculated. Similarly, when this process is performed for each text group T, the text group feature amount Tv of each text group T can be calculated.

  FIG. 7 simply shows the text group feature amounts Tva to Tvc of the three text groups Ta to Tc. As shown in FIG. 9A, the text group feature amount Tva of the text group Ta is a multidimensional vector having xa, ya, za... As elements, and xa, ya, za are in the text group Ta. The TFIDF values of the words “x”, “y”, and “z”. Similarly, the text group feature quantity Tvb of the text group Tb is a multidimensional vector having xb, yb, zb... As elements, and xb, yb, zb are the words “x”, “y” in the text group Tb. ”And“ z ”, respectively.

  Further, the text group feature amount Tvc of the text group Tc is also a multidimensional vector having xc, yc, zc... As elements, and xc, yc, zc are the words “x”, “y” in the text group Tc. ”And“ z ”, respectively. For simplification, although shown as a three-dimensional vector in the figure, the actual text group feature amount Tv is mapped on a multidimensional space according to the number of words included in the text group T. As the text group specifying information 90, for example, a paragraph number or the like may be stored instead of the text group feature amount Tv.

  Next, the character specifying information 95 will be described. The character specifying information 95 is information for specifying the marked character, and is a character string of a predetermined character string S that is included in the text group T to which the marked character belongs and is delimited by punctuation marks or line feed positions. This means the feature amount Sv. Hereinafter, calculation of the character string feature quantity Sv of the character string S performed by the server 50 will be described (character string feature quantity calculation means). The character string feature quantity Sv is a multidimensional vector having the TFIDF value of each word obtained by morphological analysis of the character string S as an element, like the text group feature quantity Tv.

Therefore, for example, when the TFIDF value of the word “data” included in the character string S1 (see FIG. 3) in the text group T1 is obtained,
TF = number of words of “data” included in the character string S1 / number of all words included in the character string S1 ×
IDF = LOG (total number of character strings S included in text group T1 / number of character strings S including words of “data”).

  For all the words included in the character string S obtained by morphological analysis, by obtaining the TFIDF value in the above manner, a multidimensional vector having each word as an axis and the TFIDF value of each word as an element is obtained. The character string feature amount Sv1 of the character string S1 is calculated. Similarly, when this process is performed for each character string S, the character string feature amount Sv of each character string S can be calculated. Note that the words that are the targets of TFIDF value calculation are “nouns”, “sa-variable nouns”, “proprietary nouns”, and “adjective verbs” that are assumed to play a major part in Japanese.

  The calculation of the text group feature value Tv and the character string feature value Sv is performed at two timings, that is, when the write information is stored and when the write information is reflected. Then, the text group feature value Tv and the character string feature value Sv calculated at the time of storing the writing information are stored as the old text group feature value Tov and the old character string feature value Sov, and the text group feature value calculated at the time of reflecting the writing information Tv and character string feature value Sv are stored as new text group feature value Tnv and new character string feature value Snv. If the electronic file EF is updated before the writing information is reflected, the new text group feature amount Tnv and the new character string feature amount Snv are calculated at the timing of updating the electronic file EF.

  Further, when the update has been performed a plurality of times, each feature amount is calculated for each update, and is overwritten on the previously calculated feature amount and stored in the write information database DB2. Even when the electronic file EF is updated, the new text group feature value Tnv and the new character string feature value Snv may be calculated when reflecting the writing information instead of every update.

  Subsequently, the flow until the server 50 stores the write information 81 in the write information database DB2 and reflects the write information on the electronic file EF when the electronic file EF is transmitted to the PC 100 next time is shown in FIG. This will be described with reference to the flowchart of FIG. In the following description, the text group T and the character string S included in the electronic file EF when storing the writing information are defined as the old text group To and the old character string So, and are included in the electronic file EF when reflecting the writing information. The text group T and the character string S to be defined will be described as a new text group Tn and a new character string Sn.

  First, when the user clicks the write information save button 200 (S01), the PC 100 acquires the write detailed information 80 and transmits it to the server 50. Then, the server 50 calculates the text group feature amount Tv for all the text groups T included in the electronic file EF, including the text group T to which the writing information belongs, in the above-described procedure. When the writing information is marking, in addition to the text group feature amount Tv, the character string feature amount Sv of all the character strings S included in the text group T to which the written marking belongs is calculated (S02). Then, the calculated text group feature value Tv and character string feature value Sv are stored together with the write detailed information 80 in the write information database DB2 as the old text group feature value Tov and the old character string feature value Sov.

  Thereafter, when the user tries to view the electronic file EF again on the PC 100, the PC 100 first makes an electronic file transmission request to the server 50 (S03). When the server 50 receives the electronic file transmission request from the PC 100, the server 50 first acquires the write detailed information 80 from the write information database DB2. Then, the electronic file EF is acquired from the electronic file database DB1, and the text group feature amount Tv is calculated for all the text groups T included in the electronic file EF (S04). Then, the calculated text group feature quantity Tv is temporarily stored in the write information database DB2 as a new text group feature quantity Tnv.

  Next, the server 50 performs association processing including DP matching based on the old text group feature amount Tov and the new text group feature amount Tnv, and associates each new text group Tn with each old text group To. (S05). Details of this process will be described later. Then, based on the result of the association process, a new text group Tn corresponding to the old text group To to which the writing information 81 belongs is specified (S06). When the corresponding new text group Tn can be identified (S06: Yes), if the writing is a memo, the memo is reflected in a predetermined position of the associated text group T in the electronic file EF (S07). When the writing is marking, the character string feature amount Sv of all the character strings S included in the specified new text group Tn is calculated (S08), and this is used as the new character string feature amount Snv. Store in the write information database DB2. Then, an association process including DP matching is performed based on the old character string feature value Sov and the new character string feature value Snv, and in the corresponding text group T, each new character string Sn is further associated with each old character string So. Processing is performed (S09).

  Then, based on the result of the association process, a new character string Sn corresponding to the old character string So to which the marking belongs is specified (S10). When the corresponding new character string Sn can be identified (S10: Yes), the marking is reflected on the electronic file EF based on the “text data of the marked character” stored as the writing information 81 ( S11). If there is no corresponding new character string Sn (S10: No), the marking is deleted (S12).

  On the other hand, when the corresponding new text group Tn cannot be specified (S06: No), the writing information 81 is deleted (S13). Then, it is determined whether or not all the stored write information 81 has been processed (S14). If there is unprocessed write information 81 (S14: No), the process is continued for the next write information 81. . In this way, when all the processing of the writing information 81 is completed (S14: Yes), the server 50 transmits the electronic file EF reflecting the writing information 81 to the PC 100.

  Even when the corresponding text group T cannot be specified (S06: No), when the writing information 81 is a memo, the order information regarding the order of each text group on the electronic file is further stored when the writing information is saved. In addition, the configuration may be such that the memo writing is reflected in the new text group Tn corresponding to the text group To located immediately before or immediately after the old text group To to which the memo writing belonged. For example, when a memo is written in the old text group To2 and the old text group To2 is deleted by updating the electronic file EF, the new text group corresponding to the old text group To1 located immediately before the old text group To2 The memo writing information is reflected in the new text group Tn3 corresponding to the old text group To3 located immediately after Tn1 or the old text group To2.

  Further, when the electronic file EF is updated after the write information 81 is stored and before the write information 81 is reflected, the new text group feature amount Tnv and the new character string are updated when the electronic file is updated. Since the feature amount Snv has already been calculated and stored, the calculation processing (corresponding to S04 and S08) of the new text group feature amount Tnv and the new character string feature amount Snv performed at the time of writing information reflection is omitted.

  Here, the association process of the new text group Tn with the old text group To performed by the server 50 will be described. First, a case where the electronic file EF has not been updated after the write information 81 is stored and before the write information 81 is reflected will be described.

  To associate the old text group To with the new text group Tn, first, matching processing such as DP matching is executed (text group matching means). Whether or not the difference between the old text group feature value Tov and the new text group feature value Tnv is less than a predetermined threshold in the combination of the old text group To and the new text group Tn associated by matching. Processing for determination is performed (text group determination means). When the electronic file EF is not updated, the contents of the old text group To and the new text group Tn are exactly the same. Accordingly, the difference from the associated new text group feature amount Tnv is naturally less than a predetermined threshold, and the combination of the old text group To and the new text group Tn associated by matching is identified as the corresponding text group T. To do. Note that “DP matching” means pattern matching based on dynamic programming, and refers to a method of calculating a similarity while associating elements of two patterns.

  On the other hand, if the electronic file EF has been updated between the time when the write information 81 is stored and the time when the write information 81 is reflected, the corresponding text group T can be easily found as if it was not updated. Not always fixed. Therefore, the case where the electronic file EF is updated will be described with reference to four examples shown in FIGS.

  In the example shown in FIG. 9, the electronic file EF at the time of storing the write information includes five text groups T including an old text group To1, an old text group To2, an old text group To3, an old text group To4, and an old text group To5. Is included, and the content of the old text group To2 is changed to update the electronic file EF. In this case, when matching processing such as DP matching is first performed, new text groups Tn1 to Tn5 are associated with old text groups To1 to To5, respectively (see FIG. 9).

  Whether or not the difference between the old text group feature value Tov and the new text group feature value Tnv is less than a predetermined threshold in the combination of the old text group To and the new text group Tn associated by matching. Processing to determine is performed. For the combination of the old text group To1 and the new text group Tn1, and the old text group To3 to To5 and the new text group Tn3 to Tn5, the difference between the old text group feature amount Tov and the new text group feature amount Tnv is a predetermined threshold value. And is identified as the corresponding text group T.

  However, since the contents of the old text group To2 are changed and different from the contents of the new text group Tn2, the old text group feature amount Tov of the old text group To2 and the new text group feature amount Tnv of the new text group Tn2 are different. It will be a thing. For example, in the electronic file EF shown in FIG. 7A, when the contents of the text group Tb are changed to become the text group Tb ′, the text group feature quantity Tvb ′ of the text group Tb ′ is as shown in FIG. It becomes as shown in.

  Therefore, in this case, if the difference between the old text group feature amount Tov of the old text group To2 and the new text group feature amount Tnv of the new text group Tn2 is less than a predetermined threshold, the text group corresponding to the old text group To2 Is identified as a new text group Tn2. If the difference between the old text group feature amount Tov of the old text group To2 and the new text group feature amount Tnv of the new text group Tn2 is equal to or greater than a predetermined threshold, there is no text group T corresponding to the old text group To2. Is determined.

  In the example shown in FIG. 10, an electronic file EF at the time of storing write information includes five text groups T including an order of an old text group To1, an old text group To2, an old text group To3, an old text group To4, and an old text group To5. And the old text group To2 is deleted and the electronic file EF is updated. In this case, as an example of the result of matching, as shown in FIG. 10, two text groups T of the old text group To1 and the old text group To2 are associated with the new text group Tn1. The old text groups To3 to To5 are associated with the new text groups Tn3 to Tn5, respectively, and are identified as the corresponding text group T.

  In this way, when a plurality of text groups T are associated with one text group T, the difference between the old text group feature amount Tov and the new text group feature amount Tnv in all combinations of these text groups T. And the combination whose difference is less than a predetermined threshold is specified as the corresponding text group T. In the case of the example shown in FIG. 10, in the combination of the old text group To1 and the new text group Tn1, and the old text group To2 and the new text group Tn1, the old text group feature amount Tov and the new text group feature amount Tnv Judge the difference.

  The contents of the old text group To1 and the new text group Tn1 are the same, and naturally the difference in feature amount is less than a predetermined threshold. Therefore, the combination of the old text group To1 and the new text group Tn1 is specified as the corresponding text group T. If there are a plurality of combinations in which the difference in the text group feature amount Tv is less than the predetermined threshold, the combination that minimizes the difference in the text group feature amount Tv is specified as the corresponding text group T.

  In the example shown in FIG. 11, an electronic file EF at the time of storing write information includes five text groups T consisting of an old text group To1, an old text group To2, an old text group To3, an old text group To4, and an old text group To5. The old text group To2 is moved between the old text group To4 and the old text group To5, and the electronic file EF is updated. In this case, as an example of the result of matching, as shown in FIG. 11, two text groups T of the old text group To1 and the old text group To2 are associated with the new text group Tn1, and the old text group Two text groups T, a new text group Tn4 and a new text group Tn2, are associated with To4. The old text groups To3 and To5 are associated with the new text groups Tn3 and Tn5, respectively, and specified as the corresponding text group T.

  In this case, the combination of the old text group To1 and the old text group To2 with respect to the new text group Tn1, and the combination of the new text group Tn4 and the new text group Tn2 with respect to the old text group To4, as described in the example shown in FIG. Although the configuration may be such that the difference in the text group feature amount Tv is determined, a different method will be described here.

  In the example shown in FIG. 11, for each of the old text group To1, the old text group To1, the old text group To2, the old text group To4, the new text group Tn1, the new text group Tn4, and the new text group Tn2 for which no correspondence is specified. The combination of the old text group feature value Tov and the new text group feature value Tnv of each new text group Tn is calculated for a combination that minimizes the total value D. For example, the total value D in the combination of the old text group To1 and the new text group Tn1, the old text group To2 and the new text group Tn4, and the old text group To4 and the new text group Tn2 is calculated by the following calculation formula.

  That is, in the old text group To1, the old text group To2, the old text group To4, the new text group Tn1, the new text group Tn4, and the new text group Tn2, there are six combinations of the old text group To and the new text group Tn. To do. In each of the six combinations, a total value D is calculated by summing up the differences between the old text group feature amount Tov of each old text group To and the new text group feature amount Tnv of each new text group Tn. The combination of the total values D that minimizes the value is obtained. As a result of such processing, as shown in FIG. 13, the new text group Tn1 is in the old text group To1, the new text group Tn2 is in the old text group To2, and the new text group Tn4 is in the old text group To4. Are associated with each other, the corresponding text group T can be specified for all the text groups T.

  Processing for calculating a combination that minimizes the sum D of the differences between the text group feature amount Tov of each old text group To and the text group feature amount Tnv of each new text group Tn described above. Since the calculation amount becomes enormous up to the square of the number of text groups T, it is preferable to calculate using a genetic algorithm.

  The example shown in FIG. 12 includes an electronic file EF when writing information is stored, in the order of an old text group To1, an old text group To2, an old text group To3, an old text group To4, an old text group To5, and an old text group To6. 6 text groups T are included, new text group Tn7 and new text group Tn8 are added between old text group To3 and old text group To4, and old text group To5 is further deleted to update electronic file EF An example is shown. In this case, as an example of the result of matching, as shown in FIG. 12, three text groups T, a new text group Tn7, a new text group Tn8, and a new text group Tn4 are associated with the old text group To4, respectively. Thus, two text groups T, the old text group To5 and the old text group To6, are associated with the new text group Tn6. The new text groups Tn1 to Tn3 are associated with the old text groups To1 to To3, respectively, and specified as the corresponding text group T.

  In this case, as in the example described with reference to FIG. 11, the old text group To4, the old text group To5, the old text group To6, the new text group Tn7, the new text group Tn8, and the new text group whose association is not specified. For Tn4 and new text group Tn6, the total value D, which is the sum of the differences between the text group feature value Tov of each old text group To and the text group feature value Tnv of each new text group Tn, is minimized. Calculate the combination. By the way, when the number of text groups To included in the electronic file EF when writing information is stored differs from the number of text groups Tn included in the electronic file EF when reflecting writing information due to addition / deletion of the text group T, If the number of the old text group To is n and the number of the new text group Tn is m, the correspondence can be represented by an n + 1 × m + 1 matrix as shown in FIG.

  That is, for the old text group To4, the old text group To5, the old text group To6, the new text group Tn7, the new text group Tn8, the new text group Tn4, and the new text group Tn6, the text group feature amount Tov of each old text group To and When the total value D obtained by summing all the combinations of the differences from the text group feature amount Tnv of each new text group Tn is calculated, the old text group To5 deleted by the update is shown in FIG. In the illustrated matrix, the new text group Tn7 and the new text group Tn8 that are newly added by updating and are added to the location corresponding to n + 1 are extracted. In this way, the corresponding text group T can be specified.

  Furthermore, a process for associating the new character string Sn with the old character string So performed by the server 50 will be described. As shown in FIG. 15, the character string S is associated with the old character string So included in the old text group To and the new character string Sn included in the new text group Tn associated with the old text group To. The association is performed. In the association process of the character strings S, as in the text group T, the character string feature amount Sv of each character string S is calculated, and DP matching is performed using the calculated character string feature amount Sv to specify the association. To do.

  For example, the old character string feature amounts Sov1 to Sov5 are calculated for the old character strings So1 to So5 in the old text group To1 shown in FIG. Further, the new character string feature values Snv1 to Snv5 are calculated for the new character strings Sn1 to Sn5 in the new text group T1. Then, DP matching or the like is performed using the old character string feature values Sov1 to Sov5 of the old character strings So1 to So5 and the new character string feature values Snv1 to Snv5 of the new character strings Sn1 to Sn5 to specify the association. The association process of the character string S is the same as the description performed in the association process of the text group T, and details (character string matching means, character string determination means) are omitted.

  When the writing information is marking, after the corresponding character string S is specified, the marked character is specified from the corresponding character string S based on the “text data of the marked character” stored as the writing information. The server 50 reflects the marking on the electronic file EF.

  For example, as shown in FIG. 16, the detailed write information 80 (write information 81: “network layer” position information 82: “text group 3, character string 1”) received and acquired from the PC 100 is stored in the write information database DB2. , The old text group feature amount Tov of all of the old text group To and the new text group feature amount Tnv of all of the new text group Tn are stored as the text group specifying information 90, and all characters of the character string So included in the old text group To3 are stored. When the character string feature amount Snv of all the character strings Sn included in the column feature amount Sov and the new text group Tn3 is stored in the writing information database DB2 as the character specification information 95, the server 50 specifies the position information 82 and the text group specification. Based on the information 90, a text group T corresponding to the text group T3 (old text group To3) is selected. To identify as text group Tn3.

  Further, based on the position information 82 and the character specifying information 95, the character corresponding to the character string 1 “used from the network layer” (old character string So1) included in the old text group To3 from the new text group Tn3. The column “network layer to be used” is identified as the new character string Sn1. Then, the “network layer” stored as the write information 81 is further specified from the new character string Sn1 “network layer to be used”, and the marking is reflected.

  In addition, the structure which reflects marking per character string S may be sufficient. In this case, when the user performs marking on the “network layer” included in the old character string So1 illustrated in FIG. 16, the marking is reflected on all of the new character string Sn1 “network layer to be used”. According to this configuration, it is not necessary to store “text data of marked character string”. In addition, even when the contents of the character string S are slightly changed, there is an advantage by reflecting the marking information in character string S units.

  For example, when the character string S “Japanese cities are Tokyo and Osaka” is marked, and the character string S is changed to “Japanese cities are Tokyo, Osaka, and Nagoya”, In the configuration in which the corresponding character string S is specified and “text data of the marked character string” is specified, the corresponding character string S “Japanese cities are Tokyo, Osaka, and Nagoya” “ Since the Japanese city is Tokyo or Osaka, the marking is reflected in the character strings of “Japanese city is Tokyo”, “Osaka”, and “is”. However, by reflecting the marking information in units of the character string S, the marking can be reflected to the entire character string S “Japanese cities are Tokyo, Osaka, and Nagoya”.

  Alternatively, the marking type information 97 shown in FIG. 17 may be further stored as the writing information 81 based on the user's selection when writing the marking, and the marking information may be reflected based on the stored marking type information 97. According to this configuration, various markings such as a straight line, a wavy line, a double line, an underline, and a dotted line can be written and reflected in the electronic file EF.

  Note that an image may be written as the writing information 81 such as marking or memo writing. In this case, as the position information 82, the PC 100 acquires information regarding the size of the display screen and information regarding the relative position of the writing information 81 with respect to the text group T, and transmits the information to the server 50. According to this configuration, since the server 50 can directly reflect the image drawn on the electronic file EF by the user as the writing information 81 on the electronic file EF, the degree of freedom of the writing process by the user can be further increased. it can. In this case, the user can also draw an image on the display 109 using a pen connected to the PC 100.

  Further, the electronic file database DB1 and the write information database DB2 may be configured by separate servers. According to this configuration, the memory burden on the server that stores the write information database DB2 is reduced, so that the processing capability for reflecting the write information can be enhanced.

  The electronic file EF may include images and moving images in addition to the text group T. Further, as the position information 82, information regarding the size of the display screen and a position (coordinates) with respect to the display screen may be stored.

  In addition, the apparatus configuration and processing steps of the electronic file writing system 1 can be appropriately changed without departing from the gist of the present invention, regardless of the above-described embodiment.

1 is an overall view of an electronic file writing system according to an embodiment. It is a figure which shows the hardware constitutions of an electronic file writing system. It is a figure which shows an example of an electronic file. It is explanatory drawing which shows an example of memo writing operation to an electronic file. It is explanatory drawing which shows an example of marking operation to an electronic file. It is a figure which shows an example of the electronic file in which writing information was reflected. It is explanatory drawing for demonstrating a text group feature-value. It is a flowchart which shows the flow from memory | storage of write information to reflection of write information. It is a figure which shows an example of the matching process result of a text group. It is a figure which shows the other example of the matching process result of a text group. It is a figure which shows the other example of the matching process result of a text group. It is a figure which shows the other example of the matching process result of a text group. It is a figure which shows an example of the process result of the matching process of a text group. It is a figure which shows the other example of the process result of the matching process of a text group. It is explanatory drawing for demonstrating the matching process of a character string. It is explanatory drawing for demonstrating the matching process of a character string. It is a figure showing marking classification information.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic file writing system 50 Server 60 Data processing part 70 Update means 80 Write detailed information 81 Write information 82 Position information 90 Text group specific information 95 Character specific information 100 Client PC
120 writing means 130 transmitting means P writing information reflecting program DB1 electronic file database DB2 writing information database T text group To old text group Tn new text group Tv text group feature amount Sv character string feature amount S character string So old character string Sn new character Column

Claims (11)

An electronic file writing system comprising an information terminal for writing to an electronic file including one or more text groups, and a server connected to the information terminal and storing the electronic file,
The information terminal
Writing means for writing to the electronic file;
Transmission means for transmitting to the server write detailed information including write information related to information written by the write means and position information indicating the position of the write information on the electronic file,
The server
Storage means for storing the received detailed writing information and text group specifying information for specifying a text group to which the writing information generated based on the position information belongs;
An electronic file writing system comprising: writing information reflecting means for reflecting the stored writing information in the electronic file based on the text group specifying information. The server
Text that is the feature amount of all of the old text group that is the text group included in the electronic file at the time of storing the writing information and the new text group that is the text group included in the electronic file at the time of reflecting the writing information A text group feature quantity calculating means for calculating the group feature quantity,
The storage means stores the text group feature quantity of the old text group and the text group feature quantity of the new text group as the text group specifying information,
The writing information reflecting means is
The corresponding text group is specified based on the text group feature amount of each old text group and the text group feature amount of each new text group, and the writing information is reflected. Electronic file writing system. The server
Updating means for updating the electronic file;
Text group matching means for associating each old text group with each new text group, using the text group feature values of all stored text groups;
The difference between the text group feature quantity of each old text group and the text group feature quantity of each new text group associated with each old text group by the text group matching means is less than a predetermined threshold value. Text group determining means for determining whether or not
If the electronic file is updated,
The text group feature amount calculating means calculates a text group feature amount of a text group included in the electronic file at the time of update as a text group feature amount of the new text group,
The storage means stores the text group feature amount at the time of update immediately before reflecting the writing information as the text group feature amount of the new text group,
The writing information reflecting means is
A combination of an old text group and a new text group, which is determined by the text group determination means to have a difference between the two text group feature quantities less than the predetermined threshold, as a corresponding text group; The electronic file writing system according to claim 2, wherein the electronic file writing system is reflected. The writing information is memo writing information composed of at least one of image data, text data, and audio data;
The storage means further stores order information regarding the order of the text groups,
When the text group to which the writing information belongs is deleted by updating the electronic file,
4. The writing information reflecting means reflects the writing information in a text group located immediately before or immediately after the text group to which the writing information belongs based on the order information. The electronic file writing system according to item 1. The writing information includes marking information regarding marking of characters included in the text group,
The storage means further stores character specifying information for specifying the character on which the marking has been performed,
The writing information reflecting means is
After specifying the text group to which the marked character belongs based on the text group specifying information, further specifying the marked character based on the stored character specifying information, and the writing information 5. The electronic file writing system according to claim 1, wherein the electronic file writing system is reflected. An old character string that is one or more character strings delimited by punctuation marks and / or line breaks included in the old text group, and the one or more character strings included in a new text group corresponding to the old text group A character string feature amount calculating means for calculating a character string feature amount that is a feature amount of all of the new character strings is further provided,
The storage means stores the character string feature amount of each old character string and the character string feature amount of each new character string as the character specifying information,
The writing information reflecting means is
6. The character string feature value of each old character string and the character string feature value of each new character string are specified, the corresponding character string is specified, and the writing information is reflected. Electronic file writing system. Character string matching means for associating each old character string with each new character string, using the character string feature values of all stored character strings,
The difference between the character string feature amount of each old character string and the character string feature amount of each new character string associated with each old character string by the character string matching means is less than a predetermined threshold value. A character string determination means for determining
The writing information reflecting means is
A combination of an old character string and a new character string, in which the difference between the two character string feature values is determined to be less than the predetermined threshold by the character string determining means, is identified as a corresponding character string, and the writing information The electronic file writing system according to claim 6, wherein the electronic file writing system is reflected. The character identification information further includes text data indicating the character on which the marking has been performed,
The writing information reflecting means is
7. The character string to which the marking has been performed is further specified based on the text data after the character string to which the marked character has belonged, and the writing information is reflected. Or the electronic file writing system according to 7;   The electronic file writing system according to any one of claims 5 to 8, wherein the storage unit further stores marking type information related to information indicating the type of marking.   The program for functioning a computer as each means in the electronic file writing system of any one of Claim 1 thru | or 9. A method for reflecting write information in an electronic file of a network system comprising: an information terminal for writing to an electronic file including one or more text groups; and a server connected to the information terminal and storing the electronic file. Because
The information terminal is
A writing step of writing to the electronic file;
Performing a transmission step of transmitting to the server write detailed information including write information related to the information written by the write step and position information indicating a position of the write information on the electronic file;
The server is
A storage step of storing the received detailed writing information and text group specifying information for specifying a text group to which the writing information generated based on the position information belongs;
A writing information reflecting method for an electronic file, comprising: executing a writing information reflecting step of reflecting the stored writing information on the electronic file based on the text group specifying information.

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