JP5320306B2 - File search system, file server, operation control method thereof, and operation program thereof - Google Patents

Description

  The present invention relates to a file search system, a file server, an operation control method thereof, and an operation program thereof.

  It takes a very long time to find a desired file from a large number of files. For this purpose, there is one that analyzes the structure of a document having a tree structure and improves the search result (Patent Document 1). In addition, there are documents that analyze document images, analyze structures, and use them for searching (Patent Documents 2 and 3).

  However, it is still difficult to find a desired file with a simple operation.

Japanese Patent Laid-Open No. 10-207911 JP 2009-9307 JP 2007-52615 A

  An object of the present invention is to find a desired file by a relatively simple operation.

  The search system according to the present invention relates to a file search system including a client terminal device and a file server that can communicate with each other.

  The client terminal device includes user identification data transmitting means for transmitting user identification data for identifying a user of the client terminal device to the file server, and the file server includes the user identification of the client terminal device. When the file browsing frequency is divided according to the characteristics of the file belonging to the characteristic item among the characteristic items that classify the characteristic (property) of the file viewed by the user identified by the user identification data transmitted from the data transmission means The first keyword candidate determining means for determining a predetermined number of characteristic items as the first keyword candidates in order of decreasing variation in browsing frequency, and the first keyword candidate determined by the first keyword candidate determining means A first key for transmitting data to the client terminal device And a over de candidate data transmission means.

  The client terminal device designates a first keyword from among first keyword candidates represented by data representing a first keyword candidate transmitted from the first keyword candidate data transmitting means of the file server. First keyword designating means, and first keyword data transmitting means for transmitting data representing the first keyword designated by the first keyword designating means to the file server, The server includes the characteristics of the file belonging to the characteristic item corresponding to the first keyword represented by the data representing the first keyword transmitted from the first keyword / data transmitting means of the client terminal device, The second keyword is used to specify the characteristics of a file with a browsing frequency that is equal to or higher than a predetermined threshold. Second keyword candidate determining means for determining as a complement, and second keyword candidate data transmitting means for transmitting data representing the second keyword candidate determined by the second keyword candidate determining means to the client terminal device It has more.

  The client terminal device designates a second keyword designating a second keyword from second keyword candidates represented by data representing keyword candidates transmitted from the keyword candidate data transmitting means of the file server. And second keyword data transmission means for transmitting data representing the second keyword designated by the second keyword designation means to the file server, wherein the file server includes the client terminal. File search means for finding a file corresponding to the second keyword represented by the data representing the second keyword transmitted from the second keyword data transmission means of the apparatus, and the file search Files found by means Further comprising a file transmission means for transmitting to said client terminal device.

  According to the present invention, user identification data for identifying the user of the client terminal device is transmitted from the client terminal device to the file server. In the file server, among the characteristic items that classify the characteristics of the files viewed by the user identified by the user identification data, the variation in the browsing frequency when the file browsing frequency is divided according to the characteristics of the file belonging to the characteristic item A predetermined number of characteristic items are determined as first keyword candidates in the order of decreasing number. Data representing the determined first keyword candidate is transmitted from the file server to the client terminal device. The first keyword is designated from among the first keyword candidates by the user of the client terminal device. Data representing the designated first keyword is transmitted from the client terminal device to the file server, and has a browsing frequency equal to or higher than a predetermined threshold among the characteristics of the file belonging to the characteristic item corresponding to the first keyword. The characteristic of the file is determined as the second keyword candidate. Data representing the determined second keyword candidate is transmitted from the file server to the client terminal device. The second keyword is designated from the second keyword candidates by the user of the client terminal device. Data representing the designated second keyword is transmitted from the client terminal device to the file server, and a file corresponding to the second keyword is found in the file database. The found file is transmitted from the file server to the client terminal device.

  According to the present invention, the first keyword candidate is determined from the viewpoint that it is easier to find a file if a keyword is a characteristic item with less variation in the browsing frequency when the file browsing frequency is divided for each file characteristic. . From the first keyword candidates, the first keyword is designated by the user of the client terminal device. Among the characteristics of the file belonging to the characteristic item corresponding to the designated first keyword, the characteristic of the file having a browsing frequency equal to or higher than a predetermined threshold is determined as the second keyword candidate. The file specified by the second keyword candidate determined in this way is highly likely to be browsed by the user of the client terminal device. A second keyword is designated from such second keyword candidates. The user can specify a keyword corresponding to a file with a high possibility of browsing as the second keyword. A file corresponding to the second keyword specified in this way is found in the file database. A keyword suitable for a file that is highly likely to be browsed by the user can be designated, and a desired file can be found relatively easily.

  The present invention also provides a file server constituting the file search system. That is, this file server performs file browsing for each characteristic of the file belonging to the characteristic item among the characteristic items that classify the characteristics of the file viewed by the user identified by the user identification data transmitted from the client terminal device. The first keyword candidate determining means for determining a predetermined number of characteristic items as the first keyword candidates in the order of small variation in the browsing frequency when the frequencies are divided, and the first keyword candidate determined by the first keyword candidate determining means First keyword candidate data transmission means for transmitting data representing keyword candidates to the client terminal device, and first data represented by data representing the first keyword candidates transmitted from the first keyword candidate data transmission means Specify by the user of the above client terminal device from the keyword candidates Second keyword candidate determining means for determining, as a second keyword candidate, a characteristic of a file having a browsing frequency equal to or higher than a predetermined threshold among the characteristics of the file belonging to the characteristic item corresponding to the first keyword. , Transmitted from the second keyword candidate data transmitting means for transmitting the data representing the second keyword candidate determined by the second keyword candidate determining means to the client terminal device, and from the second keyword candidate data transmitting means. A file search for finding a file corresponding to the second keyword designated by the user of the client terminal device from the file database among the second keyword candidates represented by the data representing the second keyword candidate And a file found by the above file search means Characterized in that it comprises a file transmission means for transmitting the serial to the client terminal device.

  The present invention also provides an operation control method suitable for the file server. That is, in this method, the first keyword candidate determining means includes the file belonging to the characteristic item among the characteristic items for classifying the characteristic of the file viewed by the user identified by the user identification data transmitted from the client terminal device. A predetermined number of characteristic items are determined as first keyword candidates in the order of less variation in the browsing frequency when the file browsing frequency is divided for each characteristic, and the first keyword candidate transmitting means determines the first keyword. Data representing the first keyword candidate determined by the candidate determining means is transmitted to the client terminal device, and the second keyword candidate determining means transmits the first keyword candidate transmitted from the first keyword candidate data transmitting means. Of the first keyword candidates represented by the data representing Among the characteristics of the file belonging to the above-mentioned characteristic item corresponding to the first keyword specified by the user, the characteristic of the file having a browsing frequency equal to or higher than a predetermined threshold is determined as the second keyword candidate, The keyword candidate transmission unit transmits data representing the second keyword candidate determined by the second keyword candidate determination unit to the client terminal device, and the file search unit transmits the second keyword candidate data transmission unit. The file corresponding to the second keyword designated by the user of the client terminal device is selected from the file database among the second keyword candidates represented by the data representing the second keyword candidate transmitted from the file database. The file transmission means finds the file found by the file search means. It is to send serial to the client terminal device.

  The present invention also provides a program readable by the file server for implementing the operation control method of the file server. Also, a recording medium storing such a program may be provided.

It is an outline of a file search system. It is the appearance of a mobile phone. It is a block diagram which shows the electric constitution of a mobile telephone. It is a block diagram which shows the electric constitution of a file server. It is an example of a file characteristic table. It is an example of a development purchase order content table. It is an example of a browsing history log. It is a flowchart which shows the process sequence of a mobile telephone. It is a flowchart which shows the process sequence of a mobile telephone. It is a flowchart which shows the process sequence of a file server. It is a flowchart which shows the process sequence of a file server. It is an example of the display screen of a mobile phone. It is an example of the display screen of a mobile phone. It is a flowchart which shows the 1st keyword candidate determination processing procedure. It is an example of the browsing frequency table classified by file contents. It is an example of the browsing frequency table classified by application. It is an example of the browsing frequency table classified by creation day. It is a flowchart which shows the 2nd keyword candidate determination processing procedure. It is an example of the display screen of a mobile phone. It is an example of the display screen of a mobile phone.

  FIG. 1 shows an embodiment of the present invention and is an outline of a file search system.

  The file search system includes a mobile phone (client terminal device) 1 and a file server 40 that can communicate with each other. A file database 51 and a browsing history database 52 are connected to the file server 40. The file database 51 also stores a large number of files, a file characteristic table (see FIG. 5) showing the characteristics of each file, a content table (see FIG. 6) showing the contents of each file. The browsing history table 52 stores a browsing history log (see FIG. 7) that is accumulated every time a file is browsed.

  In this embodiment, the file server 40 communicates with the mobile phone 1, but is not limited to the mobile phone 1, and may communicate with other terminal devices such as a client computer. In FIG. 1, one mobile phone 1 is shown, but it goes without saying that many mobile phones 1 communicate with the file server 40.

  FIG. 2 shows the appearance of the mobile phone 1.

  A speaker 2 is formed in the upper part of the front surface of the mobile phone 1. A display screen 3 of the mobile phone 1 is formed below the speaker 2.

  A determination button 4 is formed at the bottom of the display screen 3. Around this decision button 4 is formed an annular arrow button 5 in which up, down, left and right arrows can be pressed. Adjacent to the arrow button 5, buttons 6-9 such as on-hook and off-hook are formed. A numeric keypad 10 is formed below these buttons 4-9.

  A microphone 11 is formed in the lower part of the mobile phone 1.

  FIG. 3 is a block diagram showing an electrical configuration of the mobile phone 1.

  The overall operation of the mobile phone 1 is controlled by the processing device 30.

  The mobile phone 1 includes a communication circuit 31 that communicates with the image server 40. The mobile phone 1 also includes a browser for displaying images, a memory 32 for storing data, data, and the like, an input interface 33 and a display device 34 for giving commands from the above-described buttons 4 to the processing device 30. ing. The cellular phone 1 also has a call function, but a circuit related to the call is not shown.

  FIG. 3 is a block diagram showing an electrical configuration of the file server 40.

  The overall operation of the file server 40 is controlled by the CPU 41.

  The file server 40 includes a communication circuit 42 that communicates with the mobile phone 1. The file server 40 includes a CD-ROM (compact disk-read only memory) drive 46. The operation program stored in the CD-ROM 47 is read by the CD-ROM drive 46 and installed in the file server 40 to perform the operation described later. Of course, the recording medium storing the operation program (which may or may not be detachable from the file server 40) is not limited to the CD-ROM 47, and may be another recording medium or pre-installed. Good. Alternatively, an operation program transmitted via a network may be received by the file server 40 and installed in the image server 40.

  The file server 40 also includes a memory for storing the above-described operation program and other data, an input device 44 such as a keyboard and a mouse, and a display device 45.

  FIG. 5 is an example of a file characteristic table.

  The file characteristic table is generated corresponding to each of a large number of files stored in the file database 51 as described above, and is stored in the file database 51 in the same manner as the files. The file characteristic table may be stored in the file database 51 in the form of a file, or may be stored in the header of the corresponding file.

  The file characteristic table stores file characteristics corresponding to the characteristic items. The characteristics of the file corresponding to the characteristic item include the file ID for identifying the file, the file contents, the application software generated by the application software, the creation date (file creation date), and the creator ( File creator).

  File contents include development orders, quotations, delivery notes, and receipts. Applications include word processors, spreadsheets, presentations, images, and text.

  Such a file characteristic table is stored in the file database 51 every time a file is stored in the file database 51. However, when the file characteristic table is stored in the file header, it is not necessary to store the file characteristic table in the file database 51 separately from the file.

  FIG. 6 is an example of a development purchase order content table.

  The development purchase order content table stores information about the development purchase order. The development purchase order items include file ID, order title, order specification file ID, internal matters (ordering person, order approver, order approval date, order date) and supplier-related matters (ordering company name, ordering party) (Name of person in charge, estimate file ID, order amount, delivery date).

  In addition to the development purchase order content table, a table corresponding to the file content is also generated for the estimate file, the delivery document file, and the receipt file and stored in the file database 51.

  FIG. 7 is an example of a browsing history log.

  The browsing history log is generated every time the user of the mobile phone 1 browses a file and stored in the browsing history database 52. The browsing history log stores browsing history contents corresponding to browsing history items. The browsing history item includes a file ID for identifying the browsed file, a viewer, a browsing terminal ID (mobile phone 1 ID), a browsing date and time, a browsing time (total time, time for each page), whether or not the file has been modified, There are file modifications, file transfer status, file transfer destination, and print status.

  8 to 11 are flowcharts showing the processing procedure of the file search system. 8 and 9 are flowcharts showing the processing procedure of the mobile phone 1, and FIGS. 10 and 11 are flowcharts showing the processing procedure of the file server 40. FIG.

  In this embodiment, a keyword candidate for determining a keyword for searching for a file based on the browsing history of the user is presented to the user, and a desired keyword is designated by the user from the keyword candidates. Is to be found.

  When communication between the cellular phone 1 and the file server 40 is established, data representing the user name is transmitted from the cellular phone 1 to the file server 40 (step 61 in FIG. 8). When data representing the user name transmitted from the cellular phone 1 is received by the file server 40 (step 81 in FIG. 10), the first keyword candidate is determined based on the user name in the file server 40 (FIG. 10). 10 steps 82). The procedure for determining the first keyword candidate will be described later (see FIG. 14). When the first keyword candidate is determined, data representing the determined first keyword candidate is transmitted from the file server 40 to the mobile phone 1 (step 83 in FIG. 10).

  When data representing the first keyword candidate transmitted from the file server 40 is received by the mobile phone 1 (step 62 in FIG. 8), the first keyword represented by the received data representing the first keyword candidate The candidates are displayed on the display screen 3 of the mobile phone 1 (step 63 in FIG. 8).

  FIG. 12 shows a state in which the first keyword candidate is displayed on the display screen 3 of the mobile phone 1.

  The first keyword candidate is determined from the characteristic items in the file characteristic table (see FIG. 5). Of the characteristic items, it is assumed that the creation date, the file contents, and the creator are determined as the first keyword candidates. Then, on the display screen 3 of the mobile phone 1, the character string 91 of “creation date”, the character string 92 of “file contents”, and the character string 93 of “creator” are displayed in a horizontal line. A cursor 90 that can move in the left-right direction above the character strings 91 to 93 is displayed. The cursor 90 moves left and right when the left and right arrows formed on the arrow button 5 of the mobile phone 1 are pressed. Among the character strings 91 to 93, the character string on which the cursor 90 is positioned is displayed so as to be larger than the other character strings. In FIG. 12, since the cursor 90 is positioned on the character string 92, the character string 92 is displayed larger than the other character strings 91 and 93. When the enter button 4 is pressed, the character string where the cursor 90 is positioned is designated as the first keyword.

  Returning to FIG. 8, the first keyword is designated by the user of the mobile phone 1 from the first keyword candidates (character strings 91 to 93 in FIG. 12) (step 64). Then, data representing the designated first keyword is transmitted from the mobile phone 1 to the file server 40 (step 65 in FIG. 8).

  When data representing the first keyword transmitted from the cellular phone 1 is received by the file server 40 (step 84 in FIG. 10), the second keyword candidate is determined from the first keyword in the file server 40. (FIG. 10, step 85). The second keyword candidate determination processing procedure will also be described later (see FIG. 18). Data representing the determined second keyword candidate is transmitted from the file server 40 to the mobile phone 1 (step 86 in FIG. 10).

  When data representing the second keyword candidate transmitted from the file server 40 is received by the mobile phone 1 (step 66 in FIG. 8), the second keyword candidate is displayed on the display screen 3 of the mobile phone 1 ( FIG. 8 step 67).

  FIG. 13 shows a state in which the second keyword candidate is displayed on the display screen 3 of the mobile phone 1.

  The second keyword candidate is determined from the characteristics of the file belonging to the characteristic item designated as the first keyword. If “file contents” is specified as the first keyword, the characteristics of the file belonging to the characteristic item “file contents” are “development purchase order”, “estimate”, “delivery note”, and “receipt”. Therefore, the second keyword candidate is determined from the characteristics of these files. Assume that “estimate”, “development purchase order”, and “delivery note” are determined as second keyword candidates. Then, on the display screen of the mobile phone 1, a character string 101 of “quote”, a character string 102 of “development purchase order”, and a character string 103 of “delivery note” are used as the second keyword candidates. The candidates are displayed in a horizontal row under the character string 91 of “creation date”, the character string 92 of “file contents”, and the character string 93 of “creator”.

  By moving the cursor 90 left and right, the size of the character string under the cursor 90 out of the character string 101 of “quote”, the character string 102 of “development purchase order”, and the character string 103 of “delivery note” Is displayed larger than the size of other character strings. In the example shown in FIG. 13, since the cursor 90 is on the character string 102 of “development purchase order”, it is displayed larger than the other character strings 101 and 103. When the enter button 4 is pressed, the character string (character string 102) in which the cursor 90 is positioned is designated as the second keyword from the character strings 101 to 103.

  Referring to FIG. 9, when the second keyword is designated from the second keyword candidates by the user of mobile phone 1 (step 68), data representing the designated second keyword is sent from mobile phone 1. It is transmitted to the file server 40 (step 69 in FIG. 9).

  When data representing the second keyword transmitted from the mobile phone 1 is received by the file server 40 (step 87 in FIG. 11), a number of files corresponding to the second keyword are stored in the file database 51. (Step 88 in FIG. 11). The found file is transmitted from the file server 40 to the mobile phone 1 (step 89 in FIG. 11).

  When the file transmitted from the file server 40 is received by the mobile phone 1 (step 70 in FIG. 9), the contents represented by the received file are displayed on the display screen 3 of the mobile phone 1 (step 71 in FIG. 9). ). The user of the mobile phone 1 browses the content and corrects it if necessary, and the corrected file is transmitted from the mobile phone 1 to the file server 40. Needless to say, only authorized users can modify files. Further, data necessary for creating the browsing history log is also transmitted from the mobile phone 1 to the file server 40.

  When the data necessary for generating the browsing history log transmitted from the mobile phone 1 is received by the file server 40, the browsing history log is generated by the file server 40. The generated browsing history log is stored in the browsing history database 52. When the file is corrected by the user of the mobile phone 1 and the corrected file is transmitted from the mobile phone 1 to the file server 40, the corrected file is stored in the file database 51 (file before correction) Will be overwritten).

  FIG. 14 is a flowchart showing the first keyword candidate determination processing procedure (the processing procedure of step 82 in FIG. 10).

  As described above, the first keyword candidate is determined from the characteristic items for classifying the characteristics of the file viewed by the user. In particular, in this embodiment, the browsing frequency when the file browsing frequency is divided for each characteristic of the file belonging to the characteristic item is close to the average (the variation is small and the average browsing is performed). Several characteristic items are determined as first keyword candidates.

  First, all browsing history logs in which the user name transmitted from the mobile phone 1 matches the browsing person are extracted from a large number of browsing history logs stored in the browsing history database 52 (step 111). A browsing frequency table is generated for each characteristic item of the file characteristic table excluding the file ID from the extracted browsing history log (step 112). The browsing frequency table indicates how often a user browses a file having the characteristics of the file.

  Since the characteristic items of the file characteristic table are “file contents”, “application”, “creation date”, and “creator” as described above, the browsing frequency by file contents, which is a browsing frequency table for “file contents”. Table, browsing frequency table by application content that is a browsing frequency table for “application”, browsing frequency table by creation date that is a browsing frequency table for “creation date”, and creator that is a browsing frequency table for “creator” Separate browsing frequency tables are generated.

  FIG. 15 is an example of a file content browsing frequency table.

  The file content browsing frequency table shows the browsing frequency for each characteristic of the file divided by the file content. In the example shown in FIG. 15, a user having a user name transmitted from the mobile phone 1 receives the “development order” file 20 times, the “estimate” file 10 times, and the “delivery note” file 5 Shows that the “receipt” file has been browsed five times. The browsing frequency table also stores the browsing rate (ratio of browsing frequency with respect to the total browsing count) and the square of the browsing rate.

  In this embodiment, the effective keyword degree E is calculated according to Equation 1. Here, N is the number of file characteristic items, and Fi is the browsing frequency of the i-th file characteristic item.

  FIG. 16 is an example of a browsing frequency table for each application.

  The browsing frequency table for each application indicates the browsing frequency for each characteristic of the file divided by application. In the example shown in FIG. 16, a user having a user name transmitted from the mobile phone 1 has a “word processor” file 30 times, a “spreadsheet” file 5 times, a “presentation” file 2 times, "2" and "Text" files are viewed once, respectively. The browsing rate by application and the square of the browsing rate are also stored in the browsing frequency table. The effective keyword degree for the browsing frequency table for each application is also calculated from Equation 1.

  FIG. 17 is an example of the creation date browsing frequency table.

  The browsing frequency table by creation date shows the browsing frequency for each characteristic of the file divided by the creation date. In the example shown in Fig. 17, the user with the user name sent from the mobile phone 1 "creates the file after" 2009 "three times, creates the file" 2008 "date ten times," 2007 8 year creation date file, 10 year creation file date, 5 year 2005 creation date file, 5 year 2004 creation date file, 4 year creation date file , Each indicates that it has been viewed. The browsing rate and the square of the browsing rate are also stored in the creation date browsing frequency table. The effective keyword degree for the creation date browsing frequency table is also calculated from Equation 1.

  A browsing frequency table is similarly generated for the creator.

  Returning to FIG. 14, for each browsing frequency table, the effective keyword degree is calculated based on Equation 1 (step 113). The effective keyword degree represents a variation (average degree) in browsing frequency when the file browsing frequency is divided according to file characteristics. A predetermined number (for example, three) characteristic items in the browsing frequency table having an effective keyword level (low effective keyword level) with low variation in browsing frequency are set as first keyword candidates (step 114). For example, the characteristic items of the browsing frequency table are “created date” shown in FIG. 17, “file contents” shown in FIG. 15, “application” shown in FIG. 16, “author” (not shown) in this order. Suppose it was small. Then, the “created date”, “file contents”, and “application” characteristic items become the first keyword candidates.

  FIG. 18 is a flowchart showing the second keyword candidate determination processing procedure (the processing procedure of step 85 in FIG. 10).

  As described above, when the first keyword is designated by the user of the mobile phone 1, the characteristic item corresponding to the designated first keyword (the designated first keyword itself is a characteristic item) A browsing frequency list is generated from the browsing frequency table (step 121). The browsing frequency list is obtained by extracting browsing frequencies stored in the browsing frequency table in accordance with file characteristics. From the generated browsing frequency list, the characteristics of a predetermined number of files having the highest browsing frequency are set as second keyword candidates (step 122).

  For example, when “file content” is designated as the first keyword, a browsing frequency list is generated from the browsing frequency in the browsing frequency table by file content shown in FIG. The second keyword candidate is used. For example, “development purchase order”, “estimate”, and “delivery note”, which are relatively frequently viewed, are set as the second keyword candidates. However, it is not always necessary to generate a browsing frequency list because the browsing frequency for each file characteristic is known from the browsing frequency in the browsing frequency table by file content.

  FIG. 19 shows an example of keyword candidates displayed on the display screen of the mobile phone 1.

  As described above, the second keyword candidate “description” character string 101, “development purchase order” character string 102 and “delivery note” character string 103 is used as the second keyword “development”. It is assumed that “Purchase Order” is specified. In the above-described embodiment, the file corresponding to the “development purchase order” designated as the second keyword is found in the file database 51. In this embodiment, the third keyword is further added to the third keyword. Keyword candidates are determined. If the specified second keyword is “development purchase order”, the contents of the “development purchase order” can be seen from the development purchase order table as shown in FIG. There is a similar table for the book, so you can see its contents). The browsing frequency is calculated for each development purchase order item of the “development purchase order”, and the calculated high browsing frequency (for example, order amount, ordering company name, delivery date) is determined as the third keyword candidate.

  The character string 131 of “order amount”, the character string 132 of “ordering company name”, and the character string 133 of “delivery date”, which are the character strings of the third keyword candidates thus determined, are displayed on the display screen. The A third keyword is determined by the user from among these character strings 131-132. Data representing the determined third keyword is transmitted from the mobile phone 1 to the file server 40, and a file corresponding to the third keyword is found. However, as described below, a fourth keyword candidate may be further determined from the third keyword.

  FIG. 20 is an example of keyword candidates displayed on the display screen 3 of the mobile phone 1.

  As described above, when data representing the third keyword is transmitted to the file server 40, a fourth keyword candidate is determined from the third keyword. For example, if the third keyword is “ordering company name”, a company name that is frequently viewed as a file of the “ordering company name” becomes a fourth keyword candidate. For example, if the browsing frequency of the files “Company A”, “Company B” and “Company C” is high, the data representing these “Company A”, “Company B” and “Company C” is the fourth keyword candidate. Is transmitted to the mobile phone 1 as data representing. Then, on the display screen 3 of the mobile phone 1, as shown in FIG. 20, the character string 141 of “Company A”, the character string 142 of “Company B”, and the character string 143 of “Company C” are It is displayed as a character string representing keyword candidates. The user designates a fourth keyword from these character strings 141-143. Data representing the designated fourth keyword is transmitted from the mobile phone 1 to the file server 40. Then, a file corresponding to the fourth keyword is found and transmitted from the file server 40 to the mobile phone 1.

  In this embodiment, with respect to the first keyword, the first keyword candidate is selected from the viewpoint that it is easy to find a desired file by setting the file characteristics such that the variation in browsing frequency is small as the first keyword candidate. It has been decided. The first keyword is determined from among the first keyword candidates, and the second keyword candidate is determined from the top browsing frequencies, and the second keyword is selected from the second keyword candidates. Therefore, the second keyword that can quickly find the desired file is determined.

1 Mobile phone 4 Arrow buttons (first keyword specifying means, second keyword specifying means)
5 Determination button (first keyword specifying means, second keyword specifying means)
30 Processing equipment
31 Communication circuit (user identification data transmission means, first keyword / data transmission means, second keyword / data transmission means)
40 File server
41 CPU (first keyword candidate determination means, second keyword candidate determination means, file search means)
42 Communication circuit (first keyword candidate data transmission means, second keyword candidate data transmission means, file transmission means)

Claims (4)

In a file search system including a client terminal device and a file server that can communicate with each other,
The client terminal device
User identification data transmitting means for transmitting user identification data for identifying a user of the client terminal device to the file server;
The above file server is
Among the characteristic items for classifying the characteristics of the file viewed by the user identified by the user identification data transmitted from the user identification data transmitting means of the client terminal device, the file browsing for each characteristic of the file belonging to the characteristic item The first keyword candidate determining means for determining a predetermined number of characteristic items as the first keyword candidates in order of decreasing variation in the browsing frequency when the frequency is divided, and the first keyword candidate determining means determined by the first keyword candidate determining means First keyword candidate data transmission means for transmitting data representing keyword candidates to the client terminal device,
The client terminal device
First keyword designation that designates the first keyword from among the first keyword candidates represented by the data representing the first keyword candidate transmitted from the first keyword candidate data transmission means of the file server And first keyword / data transmission means for transmitting data representing the first keyword designated by the first keyword designation means to the file server,
The above file server is
Among the characteristics of the file belonging to the characteristic item corresponding to the first keyword represented by the data representing the first keyword transmitted from the first keyword / data transmitting means of the client terminal device, a predetermined value is set. Second keyword candidate determining means for determining the characteristics of a file having a browsing frequency equal to or higher than the threshold as a second keyword candidate, and data representing the second keyword candidate determined by the second keyword candidate determining means. A second keyword candidate data transmission means for transmitting to the client terminal device;
The client terminal device
Second keyword specifying means for specifying a second keyword from second keyword candidates represented by data representing keyword candidates transmitted from the keyword candidate data transmitting means of the file server, and the second Further comprising second keyword data transmission means for transmitting data representing the second keyword designated by the keyword designation means to the file server,
The above file server is
File search means for finding a file corresponding to the second keyword represented by the data representing the second keyword transmitted from the second keyword / data transmission means of the client terminal device, from a file database; and File transmission means for transmitting the file found by the file search means to the client terminal device;
File search system. Of the characteristic items that classify the characteristics of the files viewed by the user identified by the user identification data transmitted from the client terminal device, the browsing frequency when the file browsing frequency is divided according to the characteristics of the files belonging to the characteristic item First keyword candidate determining means for determining a predetermined number of characteristic items as first keyword candidates in order of decreasing variation of
First keyword candidate data transmission means for transmitting data representing the first keyword candidate determined by the first keyword candidate determination means to the client terminal device;
Corresponds to the first keyword specified by the user of the client terminal device from among the first keyword candidates represented by the data representing the first keyword candidate transmitted from the first keyword candidate data transmitting means Second keyword candidate determining means for determining a characteristic of a file having a browsing frequency equal to or higher than a predetermined threshold among the characteristics of the file belonging to the characteristic item to be determined as a second keyword candidate;
Second keyword candidate data transmission means for transmitting data representing the second keyword candidate determined by the second keyword candidate determination means to the client terminal device;
Corresponds to the second keyword designated by the user of the client terminal device from among the second keyword candidates represented by the data representing the second keyword candidate transmitted from the second keyword candidate data transmission means File search means for finding a file to be searched from a file database, and file transmission means for sending the file found by the file search means to the client terminal device,
File server with. The first keyword candidate deciding means determines the file for each characteristic of the file belonging to the characteristic item among the characteristic items for classifying the characteristic of the file viewed by the user identified by the user identification data transmitted from the client terminal device. A predetermined number of characteristic items are determined as first keyword candidates in order of decreasing variation in browsing frequency when the browsing frequency is divided,
First keyword candidate transmitting means transmits data representing the first keyword candidate determined by the first keyword candidate determining means to the client terminal device;
The second keyword candidate determining means is selected by the user of the client terminal device from the first keyword candidates represented by the data representing the first keyword candidates transmitted from the first keyword candidate data transmitting means. Of the characteristics of the file belonging to the above-mentioned characteristic item corresponding to the designated first keyword, the characteristic of the file having a browsing frequency equal to or higher than a predetermined threshold is determined as the second keyword candidate,
The second keyword candidate transmitting means transmits data representing the second keyword candidate determined by the second keyword candidate determining means to the client terminal device;
The file search means is the second keyword candidate designated by the user of the client terminal device from the second keyword candidates represented by the data representing the second keyword candidate transmitted from the second keyword candidate data transmission means. Find the file corresponding to keyword 2 in the file database,
A file transmission means transmits the file found by the file search means to the client terminal device;
File server operation control method. A file server readable program that controls the operation of the file server,
Of the characteristic items that classify the characteristics of the files viewed by the user identified by the user identification data transmitted from the client terminal device, the browsing frequency when the file browsing frequency is divided according to the characteristics of the files belonging to the characteristic item The predetermined number of characteristic items are determined as the first keyword candidates in the order of small variation of
Sending data representing the determined first keyword candidate to the client terminal device;
Of the first keyword candidates represented by the transmitted data representing the first keyword candidate, the characteristics of the file belonging to the characteristic item corresponding to the first keyword designated by the user of the client terminal device Among them, the characteristics of files having a browsing frequency equal to or higher than a predetermined threshold are determined as second keyword candidates,
Transmitting data representing the determined second keyword candidate to the client terminal device;
A file corresponding to the second keyword designated by the user of the client terminal device is found in the file database from the second keyword candidates represented by the transmitted data representing the second keyword candidate. Let
A program for controlling the operation of the file server so as to transmit the found file to the client terminal device.

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