JP5644244B2 - Document processing apparatus, document processing method, and program - Google Patents

Description

  The present invention relates to a document processing apparatus that processes document data representing a document.

  2. Description of the Related Art A full-text search device that performs a search process for searching (specifying) a document including a specific search keyword (search target word) from a plurality of documents is known. This type of full-text search apparatus mainly uses one of two methods. The first method is a grep (sequential scanning search, sequential search) method, and the second method is an index (index) method.

  The grep method is a method in which a document represented by document data stored (stored) in a storage device is sequentially scanned to search a character string identical to a search keyword from the document. The name of the grep method is derived from “grep” which is a command for searching a character string from a plurality of files in UNIX (registered trademark).

  Since the grep method does not require index information, the amount of data stored in the storage device is smaller than that of the index method. Furthermore, since the grep method does not generate index information even when stored document data is changed, a search process can be executed quickly. On the other hand, the grep method requires a longer time to execute search processing than the index method (that is, the search processing execution speed is lower).

  Further, the index method generates index information including a word included in a document represented by document data stored in a storage device and document identification information for identifying a document in which the word appears in advance. This is a method for performing a search process by matching a keyword with index information.

  The index method has a higher search processing execution speed than the grep method. On the other hand, since the index method needs to store index information in the storage device together with the document data, the amount of data stored in the storage device is larger than that in the grep method. Furthermore, in the index method, when stored document data is changed, it takes time to generate index information, so that the search process cannot be executed quickly. Note that a full-text search apparatus using an index method is described in, for example, Patent Document 1 or Patent Document 2.

  A technique for compressing data (data compression technique) is also known. For example, a data compression technique uses a dictionary method (for example, a method having a compression format such as the LZH format or the ZIP format) included in the universal code method. In the dictionary method, the character string in the data to be compressed is registered in the dictionary, and the same character string as the character string registered in the dictionary is replaced with another character string having a smaller data amount. This is a method for compressing data.

JP-A-8-287105 Japanese Patent Laid-Open No. 9-54777

  Therefore, in order to reduce the amount of data stored in the storage device, it is considered preferable to configure the full-text search device so as to compress document data. The full-text search apparatus restores the compressed document data by decompressing (decompressing) the document data, and generates index information based on the restored document data.

  However, in this case, since the full-text search device decompresses the compressed document data when generating the index information, it takes a relatively long time to generate the index information. That is, there is a problem that index information cannot be generated quickly. Furthermore, in order to output a document, it is necessary to store the compressed document data in the storage device in addition to the index information, so there is a problem that the amount of data stored in the storage device is relatively large. .

  For this reason, the object of the present invention is to solve the above-mentioned problems “the process of generating index information takes a relatively long time and the amount of data stored in the storage device is relatively large”. The object is to provide a possible document processing apparatus.

In order to achieve such an object, a document processing apparatus according to one aspect of the present invention provides
Document data receiving means for receiving a plurality of document data representing a document;
For each word included in the document represented by the received document data, the word, document identification information for identifying the document in which the word appears, and the word appear in the document. Index information storage processing means for storing, in a storage device, index information in which position information representing a position is associated with each other;
Document restoration means for restoring at least a part of the document based on the stored index information;
Is provided.

A document processing method according to another aspect of the present invention includes:
Accept multiple document data representing documents,
For each word included in the document represented by the received document data, the word, document identification information for identifying the document in which the word appears, and the word appear in the document. Index information that associates position information representing a position with the storage device is stored in the storage device,
This is a method for restoring at least a part of the document based on the stored index information.

Moreover, the program which is the other form of this invention is:
In the information processing device,
Document data receiving means for receiving a plurality of document data representing a document;
For each word included in the document represented by the received document data, the word, document identification information for identifying the document in which the word appears, and the word appear in the document. Index information storage processing means for storing, in a storage device, index information in which position information representing a position is associated with each other;
Document restoration means for restoring at least a part of the document based on the stored index information;
It is a program for realizing.

  With the configuration as described above, the present invention can quickly generate index information while reducing the amount of data stored in the storage device.

It is a block diagram showing the outline of a structure and function of the document processing apparatus which concerns on 1st Embodiment of this invention. It is a table | surface containing multiple word information which matched the word and word identification information which the index information generation apparatus which concerns on 1st Embodiment of this invention memorize | stores. It is explanatory drawing which showed notionally the outline | summary of the process which acquires the word and position information from document data which the index information generation apparatus which concerns on 1st Embodiment of this invention performs. It is explanatory drawing which showed notionally the outline | summary of the process which the index information generation apparatus which concerns on 1st Embodiment of this invention performs and acquires word identification information and position information. It is explanatory drawing which showed notionally the outline | summary of the process which produces | generates the index information which the index information generation apparatus which concerns on 1st Embodiment of this invention performs. 5 is a table including a plurality of index information generated by the index information generating apparatus according to the first embodiment of the present invention. It is the flowchart which showed the operation | movement which memorize | stores index information in a memory | storage device among operation | movement of the document processing apparatus which concerns on 1st Embodiment of this invention. It is the flowchart which showed the operation | movement which performs a search process based on index information among the operations of the document processing apparatus according to the first embodiment of the present invention. It is a block diagram showing the outline of a structure and function of the document processing apparatus which concerns on the modification of 1st Embodiment of this invention. It is the flowchart which showed the program performed in order that the document processing apparatus concerning 2nd Embodiment of this invention may acquire the basic information for producing | generating index information. It is a block diagram showing the outline of the function of the document processing apparatus which concerns on 3rd Embodiment of this invention.

  Hereinafter, embodiments of a document processing apparatus, a document processing method, and a program according to the present invention will be described with reference to FIGS.

<First Embodiment>
(Constitution)
As shown in FIG. 1, the document processing apparatus 1 according to the first embodiment includes an index information generation apparatus 10 and a search processing execution apparatus 20 that are communicably connected to each other.

  The index information generation device 10 is an information processing device. The index information generation device 10 includes a central processing unit (CPU) and a storage device (memory and hard disk drive (HDD)) (not shown). The index information generation device 10 is configured to realize functions to be described later when a CPU executes a program stored in a storage device.

  The search processing execution device 20 is an information processing device. The search processing execution device 20 includes a central processing unit (CPU) (not shown), a storage device (memory and HDD), an input device (such as a keyboard and a mouse), and an output device (such as a display). The search processing execution device 20 is configured to realize functions to be described later when the CPU executes a program stored in the storage device.

(function)
FIG. 1 is a block diagram showing the functions of the document processing apparatus 1 configured as described above.
The function of the index information generation device 10 is as follows: a document data reception unit (document data reception unit) 11, a word information storage unit (word information storage unit) 12, and an index information generation unit (part of the index information storage processing unit) 13. And the index information transmission unit 14.

  The document data receiving unit 11 receives a plurality of document data. Document data is information representing a document including a character string. The document data receiving unit 11 may be configured to receive the document data when the index information generating device 10 receives the document data from another device. Further, the document data receiving unit 11 may be configured to receive document data input to the index information generating device 10 by the user.

  The word information storage unit 12 stores word information in which a word is associated with word identification information for identifying the word. In this example, the word information storage unit 12 stores a plurality of pieces of word information in advance as shown in FIG.

  The index information generation unit 13 generates index information based on the plurality of document data received by the document data reception unit 11 and the word information stored in the word information storage unit 12. At this time, the index information generating unit 13 generates index information for each of all words included in the document represented by the plurality of document data received by the document data receiving unit 11.

  The index information is information in which a word, document identification information for identifying a document in which the word appears, and position information indicating a position where the word appears in the document are associated with each other. As will be described later, the index information is information that can be used when the search processing execution device 20 executes the search processing.

Here, the function of the index information generation unit 13 will be described using a specific example.
Assume that the document data representing the document D1 is received by the document data receiving unit 11 as shown in FIG.

  In this case, the index information generation unit 13 specifies the position where the word stored in the word information storage unit 12 appears by sequentially scanning the character string included in the document D1. Then, the index information generation unit 13 generates a word D2 appearing in the document D1 (in this example, “President of the United States”, “Ha”, “New Orleans”, etc.) for each word appearing in the document D1. ) And position information D3 indicating the position where the word appears in the document D1 (in this example, the number of characters from the beginning of the document of the first character of the word, “first character” and “sixth character” And the like) are acquired in association with each other.

  Then, as shown in FIG. 4, the index information generation unit 13 replaces the acquired word D2 with the word identification information D4 stored in the word information storage unit 12 in association with the word.

  The index information generation unit 13 executes such processing for each of the plurality of documents represented by the plurality of document data received by the document data reception unit 11. Thereafter, as shown in FIG. 5, the index information generation unit 13 executes a process of integrating the word identification information and the position information acquired for each document.

  Specifically, as illustrated in FIG. 6, the index information generation unit 13 is a basis for acquiring word identification information, position information acquired in association with the word identification information, and the position information. Index information that associates document identification information for identifying the selected document is generated. That is, in this example, the index information is information including word identification information, document identification information, and position information.

  The index information transmission unit 14 transmits the index information generated by the index information generation unit 13 to the search processing execution device 20.

  On the other hand, the functions of the search processing execution device 20 are an index information receiving unit 21, an index information storage processing unit (part of the index information storage processing means) 22, an index information storage unit 23, and a search target word receiving unit (search A target word receiving unit) 24, a search processing execution unit (search processing execution unit) 25, and a search result output unit (document restoration unit) 26.

The index information receiving unit 21 receives index information from the index information generating device 10.
The index information storage processing unit 22 causes the index information storage unit 23 to store the index information received by the index information receiving unit 21.
As shown in FIG. 6, the index information storage unit 23 stores index information in which word identification information, document identification information, and position information are associated with each other.

  The search target word receiving unit 24 receives words as search target words (search keywords, search keys). Note that the search target word receiving unit 24 may be configured to receive the search target word when the search processing execution device 20 receives the search target word from another device. Further, the search target word receiving unit 24 may be configured to receive a search target word input to the search processing execution device 20 by the user.

  The search process execution unit 25 executes a search process based on the search target word received by the search target word reception unit 24 and the index information stored in the index information storage unit 23. The search process is a process of specifying a document identified by the document identification information associated with the search target word in the stored index information as a document including the search target word.

  In this example, the search processing execution unit 25 associates the word identification information (search target word identification information) stored in the word information storage unit 12 in association with the search target word received by the search target word reception unit 24. Obtained by receiving from the index information generating apparatus 10.

  The search processing execution unit 25 acquires index information including the same word identification information as the search target word identification information among the index information stored in the index information storage unit 23. The search processing execution unit 25 outputs document identification information and position information included in the acquired index information as a search result.

  The search result output unit 26 receives the search result output by the search processing execution unit 25. The search result output unit 26 generates search result output information based on the received search result and the index information stored in the index information storage unit 23.

  The search result output information is information including document identification information for identifying a document including the search target word, and a snippet that is a portion near the search target word in the document including the search target word. . The search result output information may include information for emphasizing the search target word included in the snippet more than other parts.

  In this example, the search result output unit 26 displays the document identification information included in the search result and a position near the position represented by the position information included in the search result (that is, the position represented by the position information included in the search result). Index information including position information representing a position within a preset range (for example, a position within 30 characters) at the center is extracted.

  Then, the search result output unit 26 acquires the word stored in association with the word identification information included in the extracted index information by receiving it from the index information generation device 10. Further, the search result output unit 26 generates a snippet by connecting the acquired words in order from the top of the document based on the position information.

  That is, it can be said that the search result output unit 26 restores at least a part of the document based on the index information stored in the index information storage unit 23. Furthermore, it can be said that the search result output unit 26 is restoring a portion in the vicinity of the search target word in the document including the search target word.

  By the way, when outputting a portion near a search target word in a document and the document data representing the document is compressed, it is necessary to extract the portion after decompressing the entire document data. Therefore, in this case, there is a problem that it takes a relatively long time to output the portion. On the other hand, according to the document processing apparatus 1 according to the first embodiment, it is possible to restore only the portion in the vicinity of the search target word in the document based on the index information. Therefore, the part can be output quickly.

  The search result output unit 26 outputs the generated search result output information. The search result output unit 26 may be configured to output search result output information via an output device. The search result output unit 26 may be configured to output search result output information by transmitting it to another device.

(Operation)
Next, the operation of the document processing apparatus 1 described above will be described.
The document processing apparatus 1 executes the index information registration program shown by the flowchart in FIG.

  First, the document processing apparatus 1 receives a plurality of document data (step S101). Then, the document processing device 1 generates index information based on the received plurality of document data and the word information stored in the storage device (step S102). Next, the document processing apparatus 1 stores the generated index information in the storage device (step S103).

  Thereafter, the document processing apparatus 1 executes the search processing execution program shown by the flowchart in FIG.

  First, the document processing apparatus 1 accepts a search target word (step S201). Then, the document processing apparatus 1 executes a search process based on the received search target word and the index information stored in the storage device (step S202). Next, the document processing apparatus 1 generates search result output information based on the search result by the search process and the index information stored in the storage device (step S203). Thereafter, the document processing apparatus 1 outputs the generated search result output information (step S204).

  As described above, according to the document processing apparatus 1 according to the first embodiment of the present invention, it is possible to store the document without storing the document data in the storage device only by storing the index information in the storage device. Can be restored. Furthermore, it is not necessary to decompress the compressed document data when generating the index information. That is, according to the document processing apparatus, it is possible to quickly generate index information while reducing the amount of data stored in the storage device.

  In addition, the document processing apparatus 1 according to the first embodiment of the present invention includes a document identified by the document identification information associated with the search target word in the stored index information, including the search target word. Search processing specified as a document is executed. According to this, a search process can be quickly performed based on index information.

  Note that the document processing device 1 according to the modification of the first embodiment of the present invention, when the word included in the document represented by the received document data is not stored in the storage device in association with the word identification information, The word and new word identification information different from any of the already stored word identification information may be associated with each other and stored in the storage device.

  In the document processing device 1 according to the modification of the first embodiment of the present invention, the index information generation device 10 and the search processing execution device 20 may be configured by one information processing device.

  Further, in the document processing device 1 according to the modification of the first embodiment of the present invention, the word information storage unit 12 stores the storage device included in the search processing execution device 20 in addition to the index information generation device 10. The same information as the information may be stored.

  Further, the document processing device 1 according to the modification of the first embodiment of the present invention may store word information in a storage device provided in the search processing execution device 20 instead of the index information generation device 10.

  In this case, as illustrated in FIG. 9, the function of the index information generation device 10 is a function in which the word information storage unit 12 is deleted from the function of the index information generation device 10 according to the first embodiment, and the search process The function of the execution device 20 is a function in which the same word information storage unit 27 as the word information storage unit 12 is added to the function of the search processing execution device 20 according to the first embodiment.

  Accordingly, in this case, each of the search processing execution unit 25 and the search result output unit 26 is configured to use the word information stored in the word information storage unit 27, and the index information generation unit 13 The word information is received from 20, and the received word information is used.

Second Embodiment
Next, a document processing apparatus according to the second embodiment of the present invention will be described. In the document processing apparatus according to the second embodiment, the index information associates the word appearing in the document with the immediately preceding word and the immediately following word of the word with respect to the document processing apparatus according to the first embodiment. It differs in that it contains information. Accordingly, the following description will focus on such differences.

  The document processing apparatus 1 according to the second embodiment executes the basic information acquisition program shown by the flowchart in FIG. 10 in order to acquire basic information for generating index information for each of a plurality of document data. To do.

  First, the document processing apparatus 1 accepts one document data (step S301). Next, the document processing apparatus 1 acquires words one by one from the top of the document represented by the received document data (step S302).

  Then, the document processing apparatus 1 determines whether or not the acquired word is stored as word information (that is, stored in the storage device in association with the word identification information) (stored) (step S303). ).

  If the acquired word is stored as word information, the document processing apparatus 1 determines “Yes” and proceeds to step S305. On the other hand, if the acquired word is not stored as word information, the document processing apparatus 1 determines “No” and proceeds to step S304. Then, the document processing apparatus 1 stores the acquired word and new word identification information different from any of the already stored word identification information in association with each other in the storage device (step S304). Then, the document processing apparatus 1 proceeds to step S305.

  Next, the document processing apparatus 1 acquires word identification information stored in the storage device in association with the acquired word (step S305).

  Then, the document processing apparatus 1 uses word identification information (immediately preceding word identification information) for identifying the immediately preceding word that appears immediately before the position where the acquired word appears in the document, as in steps S302 to S305. Acquired by performing the process. Similarly, the document processing apparatus 1 uses word identification information (immediate word identification information) for identifying the immediately following word that appears immediately after the position where the acquired word appears in the document as steps S302 to S305. It acquires by performing the same process (step S306).

  In this way, the document processing apparatus 1 includes a word (word identification information in this example) included in the document represented by the received document data, position information indicating a position where the word appears in the document, The immediately preceding word (in this example, immediately preceding word identification information) that appears just before the position where the word appears in the document, and the immediately following word (in this example, where the word appears immediately after the position where the word appears in the document) , Immediately after the word identification information).

  Next, the document processing apparatus 1 determines whether or not the end of the word acquired in step S302 matches the end of the document (step S307). If the end of the acquired word does not coincide with the end of the document, the document processing apparatus 1 sets the next word after the word acquired in step S302 as the processing target in steps S302 to S307. Set. Next, the document processing apparatus 1 returns to step S302, and repeatedly executes the processes of steps S302 to S308.

  Thereafter, when the end of the word acquired in step S302 matches the end of the document, the document processing apparatus 1 determines “Yes” in step S307, and ends the processing of the basic information acquisition program. .

  Then, the document processing apparatus 1 generates index information for each of the plurality of document data based on information acquired by executing the basic information acquisition program. That is, as in the first embodiment, the document processing apparatus 1 determines the word, the document identification information, the position for each of the words included in the plurality of documents represented by the plurality of received document data. Index information is generated by associating information, the immediately preceding word that appears immediately before the position where the word appears in the document, and the immediately following word that appears immediately after the position where the word appears in the document .

  Further, when the document processing apparatus 1 restores at least a part of the document based on the index information, the document processing device 1 selects a word following a certain word and a preceding word based on the immediately preceding word identification information and the immediately following word identification information. get. Therefore, according to the document processing apparatus 1, it is possible to quickly execute a process of restoring at least a part of the document from the index information based on the immediately preceding word and the immediately following word.

As described above, according to the document processing apparatus 1 according to the second embodiment of the present invention, it is possible to achieve the same operations and effects as the document processing apparatus 1 according to the first embodiment.
Furthermore, according to the document processing apparatus 1 according to the second embodiment of the present invention, it is possible to quickly execute a process of restoring at least a part of a document from index information based on the immediately preceding word and the immediately following word. .

  The document processing apparatus 1 according to the second embodiment uses both the immediately preceding word identification information and the immediately following word identification information. However, only one of the immediately preceding word identification information and the immediately following word identification information is used. It may be configured to be used.

<Third Embodiment>
Next, a document processing apparatus according to a third embodiment of the present invention will be described with reference to FIG.
The document processing apparatus 100 according to the third embodiment
A document data receiving unit (document data receiving means) 101 for receiving a plurality of document data representing a document;
For each word included in the document represented by the received document data, the word, document identification information for identifying the document in which the word appears, and the word appear in the document. An index information storage processing unit (index information storage processing unit) 102 that stores in the storage device ST index information that associates position information that represents a position;
A document restoration unit (document restoration means) 103 for restoring at least a part of the document based on the stored index information;
Is provided.

  According to this, it is possible to restore the document without storing the document data in the storage device ST only by storing the index information in the storage device ST. Furthermore, it is not necessary to decompress the compressed document data when generating the index information. That is, according to the document processing apparatus 100, it is possible to quickly generate index information while reducing the amount of data stored in the storage device ST.

  Although the present invention has been described with reference to the above embodiment, the present invention is not limited to the above-described embodiment. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

  In each of the above embodiments, each function of the document processing apparatus is realized by the CPU executing a program (software), but may be realized by hardware such as a circuit.

  In each of the above embodiments, the program is stored in the storage device, but may be stored in a computer-readable recording medium. For example, the recording medium is a portable medium such as a flexible disk, an optical disk, a magneto-optical disk, and a semiconductor memory.

  Further, any other combination of the above-described embodiment and modification examples may be adopted as another modification example of the above-described embodiment.

<Appendix>
A part or all of the above embodiment can be described as the following supplementary notes, but is not limited thereto.

(Appendix 1)
Document data receiving means for receiving a plurality of document data representing a document;
For each of all words included in the document represented by the accepted document data, the word, document identification information for identifying the document in which the word appears, and the word appear in the document. Index information storage processing means for storing, in a storage device, index information in which position information representing a position is associated with each other;
Document restoration means for restoring at least a part of the document based on the stored index information;
A document processing apparatus comprising:

  According to this, it is possible to restore the document without storing the document data in the storage device only by storing the index information in the storage device. Furthermore, it is not necessary to decompress the compressed document data when generating the index information. That is, according to the document processing apparatus, it is possible to quickly generate index information while reducing the amount of data stored in the storage device.

(Appendix 2)
The document processing apparatus according to attachment 1, wherein
A search target word receiving means for receiving a word as a search target word;
Search process execution means for executing a search process for specifying a document identified by the document identification information associated with the accepted search target word in the stored index information as a document including the search target word When,
A document processing apparatus comprising:

  According to this, a search process can be quickly performed based on index information.

(Appendix 3)
A document processing apparatus according to appendix 2, wherein
The document processing device is configured to restore a portion near the search target word in the document including the accepted search target word.

  By the way, when outputting a portion near a search target word in a document and the document data representing the document is compressed, it is necessary to extract the portion after decompressing the entire document data. Therefore, in this case, there is a problem that it takes a relatively long time to output the portion. On the other hand, according to the above configuration, only a portion in the vicinity of the search target word in the document can be restored based on the index information. Therefore, the part can be output quickly.

(Appendix 4)
A document processing apparatus according to any one of appendix 1 to appendix 3,
Word information storage means for storing word information in which a word is associated with word identification information for identifying the word;
The index information storage processing means is a document processing apparatus configured to use information including the word identification information, the document identification information, and the position information as the index information.

(Appendix 5)
A document processing apparatus according to appendix 4, wherein
The document processing apparatus configured to generate the index information based on the stored word information.

(Appendix 6)
The document processing apparatus according to any one of appendix 1 to appendix 5,
The index information storage processing means
For each of all words included in the document represented by the accepted document data, the word, document identification information for identifying the document in which the word appears, and the word appear in the document. Position information representing a position, at least one of a word immediately before the position at which the word appears in the document, and a word immediately after the position at which the word appears in the document, A document processing apparatus configured to store the associated index information in a storage device.

  According to this, based on the immediately preceding word and / or the immediately following word, it is possible to quickly execute the process of restoring at least a part of the document from the index information.

(Appendix 7)
Accept multiple document data representing documents,
For each of all words included in the document represented by the accepted document data, the word, document identification information for identifying the document in which the word appears, and the word appear in the document. Index information that associates position information representing a position with the storage device is stored in the storage device,
A document processing method for restoring at least a part of the document based on the stored index information.

(Appendix 8)
The document processing method according to appendix 7,
Accept words as search target words,
A document processing method for executing a search process for specifying a document identified by the document identification information associated with the accepted search target word in the stored index information as a document including the search target word. .

(Appendix 9)
The document processing method according to attachment 8, wherein
A document processing method for restoring a portion in the vicinity of a search target word in a document including the accepted search target word.

(Appendix 10)
In the information processing device,
Document data receiving means for receiving a plurality of document data representing a document;
For each of all words included in the document represented by the accepted document data, the word, document identification information for identifying the document in which the word appears, and the word appear in the document. Index information storage processing means for storing, in a storage device, index information in which position information representing a position is associated with each other;
Document restoration means for restoring at least a part of the document based on the stored index information;
A program to realize

(Appendix 11)
The program according to attachment 10, wherein
In addition to the information processing apparatus,
A search target word receiving means for receiving a word as a search target word;
Search process execution means for executing a search process for specifying a document identified by the document identification information associated with the accepted search target word in the stored index information as a document including the search target word When,
A program to realize

(Appendix 12)
The program according to attachment 11, wherein
The document restoration unit is a program configured to restore a portion in the vicinity of the search target word in the document including the accepted search target word.

  The present invention can be applied to a document processing apparatus that processes document data representing a document, a document search apparatus that searches for a document including a specific word from documents collected from the web, and the like.

DESCRIPTION OF SYMBOLS 1 Document processing apparatus 10 Index information generation apparatus 11 Document data reception part 12 Word information storage part 13 Index information generation part 14 Index information transmission part 20 Search process execution apparatus 21 Index information reception part 22 Index information storage process part 23 Index information storage part 24 Search target word receiving unit 25 Search processing execution unit 26 Search result output unit 27 Word information storage unit 100 Document processing device 101 Document data reception unit 102 Index information storage processing unit 103 Document restoration unit ST Storage device

Claims (6)

Document data receiving means for receiving a plurality of document data representing a document;
For each of all words included in the document represented by the accepted document data, the word, document identification information for identifying the document in which the word appears, and the word appear in the document. Index information storage processing means for storing, in a storage device, index information in which position information representing a position is associated with each other;
Document restoration means for restoring at least a part of the document based on the stored index information;
A search target word receiving means for receiving a word as a search target word;
Search process execution means for executing a search process for specifying a document identified by the document identification information associated with the accepted search target word in the stored index information as a document including the search target word When,
With
The document restoration means includes a document that includes the accepted search target word and that is near a position represented by the position information stored in association with the document identification information that is associated with the search target word. A document processing device configured to restore a portion . The document processing apparatus according to claim 1 ,
Word information storage means for storing word information in which a word is associated with word identification information for identifying the word;
The index information storage processing means is a document processing apparatus configured to use information including the word identification information, the document identification information, and the position information as the index information. The document processing apparatus according to claim 2 ,
The document processing apparatus configured to generate the index information based on the stored word information. A document processing apparatus according to any one of claims 1 to 3 ,
The index information storage processing means
For each of all words included in the document represented by the accepted document data, the word, document identification information for identifying the document in which the word appears, and the word appear in the document. Position information representing a position, at least one of a word immediately before the position at which the word appears in the document, and a word immediately after the position at which the word appears in the document, A document processing apparatus configured to store the associated index information in a storage device. Accept multiple document data representing documents,
For each of all words included in the document represented by the accepted document data, the word, document identification information for identifying the document in which the word appears, and the word appear in the document. Index information that associates position information representing a position with the storage device is stored in the storage device,
Restoring at least a portion of the document based on the stored index information ;
Accept words as search target words,
A search process for specifying a document identified by the document identification information associated with the accepted search target word in the stored index information as a document including the search target word;
The restoration of at least a part of the document is represented by the position information stored in association with the document identification information associated with the search target word among the documents including the accepted search target word. A document processing method for restoring a portion near a position . In the information processing device,
Document data receiving means for receiving a plurality of document data representing a document;
For each of all words included in the document represented by the accepted document data, the word, document identification information for identifying the document in which the word appears, and the word appear in the document. Index information storage processing means for storing, in a storage device, index information in which position information representing a position is associated with each other;
Document restoration means for restoring at least a part of the document based on the stored index information;
A search target word receiving means for receiving a word as a search target word;
Search process execution means for executing a search process for specifying a document identified by the document identification information associated with the accepted search target word in the stored index information as a document including the search target word When,
Realized,
The document restoration means includes a document that includes the accepted search target word and that is near a position represented by the position information stored in association with the document identification information that is associated with the search target word. A program that is configured to restore parts .

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