JP6809338B2 - Information processing equipment, information processing methods and information processing programs - Google Patents

Description

The present invention relates to an information processing device, an information processing method, and an information processing program. In particular, it relates to an information processing device having a keyword search function, an information processing method, and an information processing program.

For example, there is a Data Aware type document database that stores a plurality of related document files having the same keyword in association with each other (Patent Documents 1 to 3). There is also a technique for searching a document file containing a search keyword input by a user from such a document database (Patent Document 4).

Japanese Patent No. 6002832 Japanese Unexamined Patent Publication No. 2009-277147 Japanese Unexamined Patent Publication No. 2005-339156 Japanese Unexamined Patent Publication No. 2003-178055

The following analysis was made from the point of view of the present invention. The disclosures of the above prior art documents shall be incorporated into this document by citation.

The techniques disclosed in Patent Documents 1 and 2 have a problem that it takes a long time to search for a file.

That is, in the document database of Patent Document 1, for example, the related document files are attached with the same tag and stored in the primary storage medium. Here, the primary storage medium usually manages data in units of areas, and a plurality of document files are stored in one area. Then, in the search technique of Patent Document 2, the tag corresponding to the search keyword is specified, and the area including the document file with the specified tag is read from the primary storage medium into the cache memory.

Here, the area read from the primary storage medium to the cache memory also includes a document file unrelated to the search keyword. Therefore, in the techniques disclosed in Patent Documents 1 and 2, file search is delayed due to data migration of document files unrelated to the search keyword.

Therefore, an object of the present invention is to provide an information processing device, an information processing method, and an information processing program capable of searching files in a short time.

According to the first aspect of the present invention, a storage medium for storing a plurality of files by dividing them into a plurality of file system areas, and
A cache memory that temporarily holds files stored in the storage medium, and
A keyword management table that manages the file system area in association with the keywords in the file stored in the file system area.
A keyword extractor that extracts keywords from the written file when writing a file to the storage medium,
The extracted keyword extracted by the keyword extraction unit is compared with the keyword management table, the file system area corresponding to the extracted keyword is determined as the writing destination of the writing file, and the writing file is sent to the determined file system area. Write processing unit to write
When searching for a file containing a search keyword, the keyword management table is referred to, a file system area corresponding to the search keyword is detected, and a file stored in the detected file system area is read into the cache memory. Processing unit and
A file identification unit that identifies a file containing the search keyword from the files read into the cache memory,
An information processing device including is provided.

According to the second viewpoint of the present invention, when writing a file to a storage medium in which a plurality of files are divided into a plurality of file system areas and stored, a keyword extraction step of extracting a keyword from the written file and a keyword extraction step.
A file system corresponding to the extracted keyword by matching the keyword management table that manages the file system area and the keyword in the file stored in the file system area in association with each other and the extracted keyword extracted by the keyword extraction step. A writing step in which the area is determined as the writing destination of the writing file and the writing file is written to the determined file system area.
When searching for a file containing a search keyword, the keyword management table is referred to, the file system area corresponding to the search keyword is detected, and the file stored in the detected file system area is read into the cache memory. When,
A file identification step for identifying a file containing the search keyword from the files read into the cache memory, and
Information processing methods including

According to the third viewpoint of the present invention, when writing a file to a storage medium in which a plurality of files are divided into a plurality of file system areas and stored, a keyword extraction process for extracting a keyword from the written file and a keyword extraction process
A file system corresponding to the extracted keyword by matching the keyword management table that manages the file system area and the keyword in the file stored in the file system area in association with each other and the extracted keyword extracted by the keyword extraction process. A writing process in which an area is determined as a writing destination of the writing file and the writing file is written to the determined file system area.
When searching for a file containing a search keyword, the keyword management table is referred to, the file system area corresponding to the search keyword is detected, and the file stored in the detected file system area is read into the cache memory. When,
File identification processing that identifies a file containing the search keyword from the files read into the cache memory, and
Is provided with a program that causes the computer to execute.

According to each viewpoint of the present invention, an information processing device, an information processing method, and an information processing program capable of searching a file in a short time are provided.

It is a figure for demonstrating the outline of one Embodiment. It is a figure for demonstrating the outline of one Embodiment. It is a figure for demonstrating the outline of one Embodiment. It is a figure which showed an example of the structure of the information processing apparatus 10. It is a figure which shows the information stored in the keyword management table 220. It is a figure which shows an example of a keyword list 230. It is a flowchart which shows the flow of processing at the time of writing a file. It is a flowchart which shows the flow of a file search process.

Preferred embodiments of the present invention will be described in detail with reference to the drawings. It should be noted that the drawing reference reference numerals added to the following description are added to each element for convenience as an example for assisting understanding, and the present invention is not intended to be limited to the illustrated embodiment. Further, the connecting line between the blocks in each drawing includes both bidirectional and unidirectional, and is appropriately shown or deleted for the purpose of clarifying the drawing.

As shown in FIG. 1, the information processing apparatus 10 has a primary storage medium 100 that divides and stores a plurality of document files into a plurality of file system areas, and for example, a file system that is individual to each of the plurality of physical memories. Areas (FS # 1 to n) are allocated. In the disclosure of the present application, the file system area is an area initialized by a specific file system in the storage medium, and is a so-called logical volume.

The information processing device 10 also has a cache memory 210 and a keyword management table 220. The cache memory 210 is a secondary storage medium that temporarily holds a document file stored in the primary storage medium 100, and the keyword management table 220 contains keywords in the file system area and the document file stored in the file system area. It is a table that manages by associating.

Further, the information processing device 10 has a keyword extraction unit 310, a writing processing unit 320, a reading processing unit 330, and a file specifying unit 340. The keyword extraction unit 310 extracts keywords from the writing file when writing the file to the primary storage medium 100. The writing processing unit 320 collates the extracted keyword with the keyword management table 220, determines the file system area corresponding to the extracted keyword as the writing destination of the writing file, and writes the writing file to the determined file system area.

When searching for a file containing a search keyword, the read processing unit 330 refers to the keyword management table 220, detects a file system area associated with the search keyword, and caches the file stored in that area in the cache memory. Read to 210. The file identification unit 340 identifies a file including a search keyword from the files read into the cache memory 210.

Conceptually, as shown in FIGS. 2 and 3, a plurality of files are stored in one file system area, and are associated with keywords stored in the keyword management table 220 by tags. When writing a file, as shown in FIG. 2, keywords are extracted from the writing file, and the writing file is written in the file system area associated with the extracted keywords. Further, when searching for a file, as shown in FIG. 3, all the files stored in the file system area associated with the search keyword are once read into the cache memory 210, and the read files include the search keyword. Identify the file.

Therefore, the information processing apparatus 10 reads the data of the file highly related to the search keyword into the cache memory 210 at the time of the file search. That is, since the information processing apparatus 10 does not transfer the data of the document file unrelated to the search keyword, the time required for the file search is shortened accordingly.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

[First Embodiment]
As shown in FIG. 4, the information processing device 10 is connected to the host terminal 20 and the search terminal 30, and has a primary storage medium 100, a file management memory 110, a storage unit 200, and a processing unit 300. The host terminal 20 is a terminal that transmits a write file to the information processing device 10 and makes a write request. The search terminal 30 is a terminal that transmits a search keyword to the information processing device 10 and makes a search request.

The primary storage medium 100 is a storage medium that divides and stores a plurality of files into a plurality of file system areas (FS # 1 to n). Here, each file system area can be stored in an individual physical memory, or a plurality of file system areas can be stored in one physical memory. The file management memory 110 is a storage medium for temporarily managing the write files received from the host terminal 20.

The storage unit 200 is a storage medium for storing data, programs, and the like for executing various processes in the information processing apparatus 10, and has a cache memory 210, a keyword management table 220, and a keyword list 230. The cache memory 210 is an SRAM (Static Random Access Memory) or the like, and temporarily holds a file stored in the primary storage medium 100.

The keyword management table 220 is a table that manages the file system area and the keywords in the file stored in the file system area in association with each other. As a specific example, as shown in FIG. 5, the keyword management table 220 associates a keyword (term A, etc.) with an identifier (FS # 1) of a file system area, and sets a keyword (term A, etc.) and a threshold value related to the keyword. Remember. The threshold value is, for example, the number of times a keyword appears in one file, the number of times of extraction, and the like, and is used for processing when writing a file and file search processing as described below.

As shown in FIG. 6, the keyword list 230 is a list in which a keyword and a threshold value related to the keyword are associated with each other, and is registered in advance by the administrator of the information processing apparatus 10.

The processing unit 300 executes the processing in the information processing device 10 by reading data, a program, and the like from the storage unit 200 and executing the data. Specifically, as shown in FIG. 4, the processing unit 300 includes a keyword extraction unit 310, a writing processing unit 320, a reading processing unit 330, and a file identification unit 340.

The keyword extraction unit 310 extracts keywords from the writing file when writing the file to the primary storage medium 100. Specifically, when the write file is stored in the file management memory 110, the keyword extraction unit 310 extracts the keywords listed in the keyword list 230 from the write file and identifies the keywords whose extraction count is equal to or greater than the threshold value.

The writing processing unit 320 collates the extracted keywords with the keyword management table 220, determines the file system area to which the writing file is written, and writes the writing file to the determined file system area. Specifically, the writing processing unit 320 determines whether or not the keyword specified by the keyword extraction unit 310 is stored in the keyword management table 220.

Here, when a keyword is stored, the write processing unit 320 determines the file system area corresponding to the keyword as the write destination of the write file. Then, the write processing unit 320 writes the write file stored in the file management memory 110 to the file system area determined as the write destination.

On the other hand, when the keyword is not stored, the write processing unit 320 creates an entry for a new file system area in the keyword management table 220 and secures the file system area in the primary storage medium 100. To do. Then, the writing processing unit 320 registers the keyword whose extraction count is equal to or greater than the threshold value and the entry for which the threshold value is created, and writes the writing file stored in the file management memory 110 to the newly secured file system area.

When searching for a file containing a search keyword, the read processing unit 330 refers to the keyword management table 220, detects a file system area associated with the search keyword, and caches the file stored in that area in the cache memory. Read to 210. Specifically, when the search keyword is received from the search terminal 30, the read processing unit 330 refers to the keyword management table 220 and identifies the file system area associated with the search keyword. Then, the read processing unit 330 collectively reads the files stored in the specified file system area from the primary storage medium 100 and stores them in the cache memory 210.

The file identification unit 340 identifies a file including a search keyword from the files read into the cache memory 210. Specifically, when a file is stored in the cache memory 210, the file identification unit 340 identifies a file containing a search keyword from the stored files and provides information (for example, a file name) regarding the specified file. Output to the search terminal 30.

Hereinafter, a series of processing flows by the information processing apparatus 10 and processing by each functional unit will be described with reference to the drawings.

FIG. 7 is a flowchart showing a processing flow when writing a file. When the write file is stored in the file management memory 110 (step S11, YES), the keyword extraction unit 310 extracts the keyword from the write file and identifies the keyword whose extraction count is equal to or greater than the threshold value (step S12). Then, the writing processing unit 320 determines whether or not the specified keyword is stored in the keyword management table 220 (step S13).

Here, when the keyword is stored (step S13, YES), the write processing unit 320 writes the write file stored in the file management memory 110 to the file system area corresponding to the keyword (step S14). ). On the other hand, when the keyword is not stored (step S13, NO), the write processing unit 320 secures a new file system area and writes the write file to the secured file system area (step S15).

FIG. 8 is a flowchart showing the flow of the file search process. As shown in FIG. 8, when the read processing unit 330 receives the search keyword (step S21, YES), the read processing unit 330 reads the file stored in the file system area associated with the search keyword and stores it in the cache memory 210 (step S21, YES). Step S22).

Then, the file specifying unit 340 identifies a file including the search keyword from the files stored in the cache memory 210 (step S23), and outputs information about the specified file to the search terminal 30 (step S24). ).

As described above, in the information processing apparatus 10 of the first embodiment, the files associated with the keywords are stored in one file system area. Then, at the time of file search, the files in the file system area corresponding to the search keyword are read into the cache memory 210. That is, in the information processing apparatus 10 of the first embodiment, the files read into the cache memory 210 include many files including the search keyword, which suppresses unnecessary data migration and files by that amount. The time required for searching is reduced.

[Second Embodiment]
In the first embodiment described above, the keywords are pre-registered in the keyword list 230 by the administrator of the information processing apparatus 10. Here, the keyword can be extracted from the writing file received from the host terminal 20 and added to the keyword list 230.

For example, when the write file is stored in the file management memory 110, the keyword extraction unit 310 identifies a term that appears in the write file with a frequency of a predetermined number of times or more as a new keyword. Then, the keyword extraction unit 310 creates an entry related to the new keyword in the keyword list 230, and registers the new keyword and the threshold value. Here, the threshold value of the new keyword may be a preset value or may be determined based on the number of occurrences. Further, the administrator of the information processing apparatus 10 may appropriately select whether or not to register a new keyword. Of course, the administrator of the information processing apparatus 10 may be able to delete the keywords registered in the keyword list 230.

Further, the condition that the number of times is equal to or more than a predetermined number and up to the top x pieces may be set as the specific condition of the new keyword. The new keyword may be extracted by a search method using a known technique such as a sentence search by natural language processing such as the above-mentioned Patent Document 1 or an image metadata search.

[Third Embodiment]
Various variations can be considered in the above-described first and second embodiments. Therefore, the modified forms of the first and second embodiments will be described below as the third embodiment.

(Adding keywords to keyword management table 220)
In the first embodiment, a plurality of keywords may be extracted from the written file at a number of extractions equal to or greater than the threshold value. At this time, in the keyword management table 220, even if a certain file system area and one extracted keyword correspond to each other, the file system area may not correspond to another extracted keyword. In such a case, in the keyword management table 220, another extracted keyword is added in association with the file system area.

Explaining with a specific example, when the term A and the term Z are extracted from the writing file, the term Z is added in association with FS # 1 in the keyword management table 220 shown in FIG. In this way, keywords can be automatically added to the keyword management table 220.

(Selection of file system area when writing a file)
In the first embodiment, a plurality of keywords may be extracted from the written file at a number of extractions equal to or greater than the threshold value, and may correspond to each of the plurality of file system areas. To explain with a specific example, there are cases where the terms A and b are extracted from the writing file at a number of extractions equal to or greater than the respective threshold values.

In this case, the writing processing unit 320 with reference to the keyword management table 220 of FIG. 5 determines the file system area (FS # 1) corresponding to the term A having a high threshold value as the writing destination of the writing file. Alternatively, the write processing unit 320 determines both file system areas (FS # 1 and # 2) corresponding to the terms A and b as the write destination of the write file.

(Selection of file system area when searching for files)
In the first embodiment, the same keyword is stored in association with a plurality of file system areas in the keyword management table 220, and a plurality of file system areas may be specified at the time of file search. In this case, each file system area or keyword may be weighted to determine the order of the file system areas in which the file is read into the cache memory 210.

The various processes in the information processing apparatus 10 are realized by, for example, a computer equipped with a processing module. The processing module is realized, for example, by the CPU executing a program stored in the memory. In addition, the program can be downloaded via a network or updated using a storage medium in which the program is stored. Further, the processing module may be realized by a semiconductor chip. That is, the function performed by the processing module may be realized by some hardware and / or software.

Some or all of the above embodiments may also be described, but not limited to:

(Appendix 1)
A storage medium that divides multiple files into multiple file system areas and stores them,
A cache memory that temporarily holds files stored in the storage medium, and
A keyword management table that manages the file system area in association with the keywords in the file stored in the file system area.
A keyword extractor that extracts keywords from the written file when writing a file to the storage medium,
The extracted keyword extracted by the keyword extraction unit is compared with the keyword management table, the file system area corresponding to the extracted keyword is determined as the writing destination of the writing file, and the writing file is sent to the determined file system area. Write processing unit to write
When searching for a file containing a search keyword, the keyword management table is referred to, a file system area corresponding to the search keyword is detected, and a file stored in the detected file system area is read into the cache memory. Processing unit and
A file identification unit that identifies a file containing the search keyword from the files read into the cache memory,
Information processing equipment including.

(Appendix 2)
Further equipped with a keyword list that lists keywords
The information processing device according to Appendix 1, wherein the keyword extraction unit identifies a term extracted from the writing file at a frequency of a predetermined number of times or more as a new keyword and writes it in the keyword list.

(Appendix 3)
The information processing device according to Appendix 2, wherein the keyword extraction unit extracts keywords listed in the keyword list from a writing file.

(Appendix 4)
The keyword management table stores a threshold value related to the number of extractions in association with each keyword.
The information processing according to any one of Appendix 1 to 3, wherein the write processing unit determines a file system area corresponding to a keyword whose number of extractions by the keyword extraction unit is equal to or greater than the threshold value as a write destination of the write file. apparatus.

(Appendix 5)
When the writing processing unit does not have a file system area corresponding to a keyword whose number of extractions by the keyword extraction unit is equal to or greater than the threshold value, the writing processing unit secures a new file system area in the storage medium and the file system. The information processing apparatus according to Appendix 4, wherein the area is determined as the writing destination of the writing file.

(Appendix 6)
When writing a file to a storage medium that divides multiple files into multiple file system areas and stores them, a keyword extraction step that extracts keywords from the written file and a keyword extraction step.
A file system corresponding to the extracted keyword by matching the keyword management table that manages the file system area and the keyword in the file stored in the file system area in association with each other and the extracted keyword extracted by the keyword extraction step. A writing step in which the area is determined as the writing destination of the writing file and the writing file is written to the determined file system area.
When searching for a file containing a search keyword, the keyword management table is referred to, the file system area corresponding to the search keyword is detected, and the file stored in the detected file system area is read into the cache memory. When,
A file identification step for identifying a file containing the search keyword from the files read into the cache memory, and
Information processing methods including.

(Appendix 7)
When writing a file to a storage medium that divides and stores multiple files into multiple file system areas, keyword extraction processing that extracts keywords from the written file and keyword extraction processing
A file system corresponding to the extracted keyword by matching the keyword management table that manages the file system area and the keyword in the file stored in the file system area in association with each other and the extracted keyword extracted by the keyword extraction process. A writing process in which an area is determined as a writing destination of the writing file and the writing file is written to the determined file system area.
When searching for a file containing a search keyword, the keyword management table is referred to, the file system area corresponding to the search keyword is detected, and the file stored in the detected file system area is read into the cache memory. When,
File identification processing that identifies a file containing the search keyword from the files read into the cache memory, and
A program that causes a computer to run.

The disclosure of the above patent documents shall be incorporated into this document by citation. Within the framework of the entire disclosure (including the scope of claims) of the present invention, it is possible to change or adjust the embodiments or examples based on the basic technical idea thereof. Further, various combinations or selections of various disclosure elements (including each element of each claim, each element of each embodiment or embodiment, each element of each drawing, etc.) within the scope of the claims of the present invention. Is possible. That is, it goes without saying that the present invention includes all disclosure including claims, and various modifications and modifications that can be made by those skilled in the art in accordance with the technical idea.

10 Information processing device 20 Host terminal 30 Search terminal 100 Primary storage medium 110 File management memory 200 Storage unit 210 Cache memory 220 Keyword management table 230 Keyword list 300 Processing unit 310 Keyword extraction unit 320 Writing processing unit 330 Reading processing unit 340 File Specific part

Claims (7)

A storage medium that divides multiple files into multiple file system areas and stores them,
A cache memory that temporarily holds files stored in the storage medium, and
A keyword management table that manages the file system area in association with the keywords in the file stored in the file system area.
A keyword extractor that extracts keywords from the written file when writing a file to the storage medium,
The extracted keyword extracted by the keyword extraction unit is compared with the keyword management table, the file system area corresponding to the extracted keyword is determined as the writing destination of the writing file, and the writing file is sent to the determined file system area. Write processing unit to write
When searching for a file containing a search keyword, the keyword management table is referred to, a file system area corresponding to the search keyword is detected, and a file stored in the detected file system area is read into the cache memory. Processing unit and
A file identification unit that identifies a file containing the search keyword from the files read into the cache memory,
Information processing equipment including. Further equipped with a keyword list that lists keywords
The information processing device according to claim 1, wherein the keyword extraction unit identifies a term extracted from the writing file at a frequency of a predetermined number of times or more as a new keyword and writes it in the keyword list. The information processing device according to claim 2, wherein the keyword extraction unit extracts the keywords listed in the keyword list from a writing file. The keyword management table stores a threshold value related to the number of extractions in association with each keyword.
The information according to any one of claims 1 to 3, wherein the writing processing unit determines a file system area corresponding to a keyword whose number of extractions by the keyword extraction unit is equal to or greater than the threshold value as a writing destination of the writing file. Processing equipment. When the writing processing unit does not have a file system area corresponding to a keyword whose number of extractions by the keyword extraction unit is equal to or greater than the threshold value, the writing processing unit secures a new file system area in the storage medium and secures a new file system area in the storage medium. The information processing apparatus according to claim 4, wherein the area is determined as the writing destination of the writing file. When writing a file to a storage medium that divides multiple files into multiple file system areas and stores them, a keyword extraction step that extracts keywords from the written file and a keyword extraction step.
A file system corresponding to the extracted keyword by matching the keyword management table that manages the file system area and the keyword in the file stored in the file system area in association with each other and the extracted keyword extracted by the keyword extraction step. A writing step in which the area is determined as the writing destination of the writing file and the writing file is written to the determined file system area.
When searching for a file containing a search keyword, the keyword management table is referred to, the file system area corresponding to the search keyword is detected, and the file stored in the detected file system area is read into the cache memory. When,
A file identification step for identifying a file containing the search keyword from the files read into the cache memory, and
Information processing methods including. When writing a file to a storage medium that divides and stores multiple files into multiple file system areas, keyword extraction processing that extracts keywords from the written file and keyword extraction processing
A file system corresponding to the extracted keyword by matching the keyword management table that manages the file system area and the keyword in the file stored in the file system area in association with each other and the extracted keyword extracted by the keyword extraction process. A writing process in which an area is determined as a writing destination of the writing file and the writing file is written to the determined file system area.
When searching for a file containing a search keyword, the keyword management table is referred to, the file system area corresponding to the search keyword is detected, and the file stored in the detected file system area is read into the cache memory. When,
File identification processing that identifies a file containing the search keyword from the files read into the cache memory, and
A program that causes a computer to run.

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