JPH01211028A - Document retrieving system - Google Patents

Abstract

PURPOSE:To ensure the integrated registration of key words, the sure retrieval of documents, and the quick comparison by selecting the key word items turned into a hierarchical form by an interactive process and designating the key words in combinations. CONSTITUTION:The most significant hierarchy of a group of key word items stored in a storage part is displayed and the item group of the next higher hierarchy related to one item if selected by an input device 5 is displayed. Such an interactive process is carried out down to the item group of the lowest hierarchy. A key word code (K.C.) consisting of the item numbers of all selected hierarchies is supplied to a retrieving part. Then an input K.C. is stored in a key word storing part 9 corresponding to the document retrieving information designated by a control part 2 in a registration mode. In a document retrieving mode the document retrieving information coincident with the input K.C. is read out of the part 9 and given to the part 2. Then the document retrieving information is designated at a retrieving part 10 in case of registration and the corresponding document is detected out of a document storing part 1 based on the document retrieving information in case of the document retrieval.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a document search system capable of searching documents recorded on a write-once recording medium by specifying keywords.

BACKGROUND OF THE INVENTION Conventionally, in this type of document retrieval system, a keyword for document retrieval is directly input as a character string, and the keyword is registered or the document retrieval is performed.

When there are a large number of documents, it is difficult to set a unique keyword for each document using a single keyword, so keywords with multiple keywords are generally used. Each keyword item has a predetermined range of content, such as "document name" and "name," but the keyword registrant can set it arbitrarily within that range, and the items can be mutually linked. is independent.

When searching for a document, character strings are compared between the keyword input by the user and the registered keyword, and documents that match all items are selected as the target document.

In many systems, keyword character strings are recorded on a write-once recording medium, but in some systems, they are recorded on a rewritable recording medium such as a hard disk.

Problems to be Solved by the Invention However, this configuration has many problems as described below.

Keywords are basically determined and registered by the registrant, and there is no uniformity of keywords. the result,
When a person other than the keyword registrant searches for a document, it is not possible to easily recall the keyword corresponding to the target document, so the user may have to re-enter the keyword many times before reaching the target document. There were many. Also, since the corresponding document is uniquely determined by the keyword,
Sometimes it was impossible to search. A similar problem occurs when a keyword registrant performs a document search and registers an inappropriate keyword.

When registering keywords or searching documents, it is necessary to input the keywords as characters using a kana-kanji conversion function, which is a tedious process.

Since the comparison between registered keywords and input keywords during a document search is a character string comparison, a problem has arisen in that internal processing for the comparison takes time.

Since keywords are stored as character strings, there is a problem in that they require a large amount of storage space.

When keywords are recorded on a write-once recording medium, it is impossible to update the registered keywords. Even when keywords are recorded on a rewritable recording medium, updating them is troublesome because the keywords are character strings.

An object of the present invention is to provide a document retrieval system that solves the above-mentioned keyword-related problems.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a document storage device that stores documents using a write-once recording medium, a control unit thereof, and storage of hierarchical keyword item groups. an interaction processing section that performs interaction processing with a user for keyword registration or document search via a display device and an input device; and a keyword storage section that stores keyword codes in association with document search information. , and a search unit thereof, and the interaction processing unit displays the top-level item group stored in the keyword item group storage unit on the display device in the case of keyword registration or document search, and the input device Dialogue in which when one item is selected, a group of items at the next level of hierarchy related to the item is displayed on the display device, and when one item is selected, a group of items at the next level related to the item is displayed on the display device. Execute the process up to the item group in the lowest hierarchy, enter the keyword code consisting of the numbers of the items in all selected hierarchies into the search section, and in the case of keyword registration, the keyword code input from the interaction processing section will be retrieved by the search section.・Stores the code in the keyword storage unit in association with the document search information specified by the control unit,
In the case of a document search, the document search information stored in association with the keyword code that matches the keyword code input from the interaction processing unit is read from the keyword storage unit and given to the control unit, and the control unit registers the keyword. In the case of a document search, document search information is specified to the search unit, and in the case of a document search, a corresponding document is read out from the document storage device based on the document search information provided by the search unit.

Effects With the above-described configuration, the present invention specifies keywords by selecting and combining nine hierarchical keyword items through interactive processing, so that uniform keywords can be easily registered.

In this way, uniform keywords can be easily registered, and since keywords are specified in the same way through interactive processing when searching for documents, it is easy to specify keywords that correspond to the target document and ensure that the target document is found. You can search for

Keywords are registered as item number codes, so
Comparison processing between registered keywords and input keywords during document search can be performed at high speed.

Furthermore, since the item group is used for a large number of keywords, the storage space associated with keyword registration can be significantly reduced even if the storage space is included.

Since the keyword code is a combination of numbers of hierarchical keyword item groups, the keyword system can be updated by updating only the keyword item group without updating the keyword code and write-once recording medium. It is possible to do so. Similarly, if the keyword storage unit is a rewritable storage means, registered keywords can be easily updated simply by rewriting the keyword storage unit.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram of a document search system according to an embodiment of the present invention. 1 is a document storage device that stores documents using a write-once optical disk; 2 is a control unit that controls the document storage device 1 and other parts of the system. Reference numeral 3 denotes an item group file storage unit storing files of hierarchical keyword item groups, 4 a display device, 5 an input device such as a keyboard or a pointing device, and 8 an input device via the display device 4 and the input device 5. This is an interaction processing unit that performs interaction processing with users for keyword registration or document search.

9 is a keyword storage unit that stores keyword codes in association with document search information; 10 is a keyword storage unit 9;
This is a search section that performs searches for etc.

The item group file storage section 3 and the keyword storage section 9 are rewritable, and are, for example, a common or separate hard disk device or floppy disk device.

Note that there are a scanner for reading an image of a document to be stored in the document storage device 1, a means for compressing and decompressing a document image, a printer for printing a retrieved document, etc., but these are not shown.

FIG. 2 is an explanatory diagram of a hierarchical keyword item group file stored in the item group file storage unit 3. Keywords are hierarchized into three hierarchies, A, B, and C, and the items in the top layer A are aggregated into one file 12. The item group in the middle layer B is divided into a plurality of files 13. Similarly, the item group of the lowest layer C also has multiple files 1
It is divided into 4 parts. The files at each level are the item number,
Item name (character string), pointer to the related file in the next hierarchy (start address S and end address E)
Consisting of

FIG. 3 is an explanatory diagram of a display screen in the case of key/word registration or document search. Two keywords ■ and ■ can be specified for one document, and for each keyword there are input boxes for item names in each layer of A, B, and C 16.17.
18 and a free comment input frame 19 are displayed. Add is an area for displaying a list of item names.

When specifying a keyword, when the cursor on the screen is moved to the input frame 16 by operating the input device 5, the item numbers and item names of the hierarchy A are displayed as a list in the display area.

When the user operates the input device 5 and selects an item displayed in the silver display area on the screen or selects an item by inputting an item number, the item name of the item is displayed in the input frame 16.
will be displayed.

Next, when the cursor on the screen is moved to the input frame 17 by operating the input device 5, the item number and item name of the hierarchy B related to the selected item of the hierarchy A are displayed in the display area. Similarly, when one item is selected, the name of the item is displayed in the input frame 17.

When the cursor is moved to the input frame 18, the item numbers and item names of the hierarchy C related to the selected item of the hierarchy B are displayed in a list in the display area 20. When an item is selected, the name of the item is displayed in the input frame 18.

Next, when the cursor is moved to the input frame 19 and a free comment is input, it is displayed in the input frame 19.

As a free comment, it is possible to input an ordinary character string or the symbol &, which means a timid comment.

In this way, the first keyword ■ is specified. When specifying the second keyword ■, move the cursor to the corresponding input box 16 and perform the same selection operation.

After specifying the first or second keyword, if execution is instructed from the input device 5, keyword registration or document search is performed.

In this way, keywords are specified by selecting the necessary items for each layer from a group of keyword items that are hierarchically organized in advance, making it possible to register uniform keywords, and also to Keywords corresponding to documents can be easily specified.

FIG. 4 is an explanatory diagram of keyword codes.

The keyword code n is a number code consisting of the selected item numbers of layers A, B, and C, plus a character string code for a free comment.

Free comments are not subject to comparison of keywords and codes during a search, but when multiple documents are searched as candidates using keywords, each free comment is displayed in a list, allowing users to easily select the target document from the candidate documents. This was added to make it possible to select. Therefore, it is also possible to omit free comments.

Next, the operation of the system when a document is stored in the document storage device 1 and its keyword is registered will be explained. The user operations and changes in screen display have already been explained.

The interaction processing unit 8 reads the contents of the file 12 in the layer A on which the cursor on the display screen is first positioned from the item group file storage unit 3 into the internal file buffer, and displays the item number and name on the display device 4. Display the list in the area. When an item is selected, the interaction processing unit 8 stores the item number in an internal keyword storage buffer, and displays the corresponding item name in the input frame 16 on the display screen.

When the cursor is placed on the input frame 17 of layer B, the interaction processing unit 8 reads the pointer corresponding to the selection item of layer A from the internal buffer, and stores the contents of the file 13 of layer B indicated by the pointer in the internal buffer. The item number and item name are displayed in a list on the display area of the display device 4. When one item is selected, the item number is stored in the keyword storage buffer, and the corresponding item name is displayed in the input frame 17.

Similarly, when an item in layer C is selected and a free comment is entered, a keyword code is obtained in the keyword storage buffer. For example, if item number 1 of layer A (by user), item number 2 of layer B (company B), and item number 1 of layer C (submitted materials) are selected and the symbol & is entered as a free comment, the keyword The code is ro10
It becomes 201&J.

When an execution instruction is given from the input device 5, the interaction processing unit 8 sends the keyword code in the keyword storage buffer to the search unit 10.

At this time, the control unit 2 sends the search information of the document to the search unit IO (medium number on which the document is recorded, document number, number of pages).
will be sent. The search unit 10 associates this search information with the keyword code input from the interaction processing unit 8 and writes it into the keyword storage unit 9.

Note that when two keywords are specified, each keyword code is written in the keyword storage section 9 in association with search information for the same document.

Next, the operation of the system in the case of document search by keyword specification will be explained. FIG. 5 is a schematic flowchart showing this operation in association with keyword codes. Note that the operation of the interactive process for specifying a keyword is the same as in the case of keyword registration.

The dialog processing unit 8 causes the display device 4 to display a list of item numbers and item names for the hierarchy, as in the case of keyword registration (step 1).

The dialogue processing unit 8 stores the item number selected by the user and displays the item name (step 2).
.

The interaction processing unit 8 displays a list of the item numbers and item names of the hierarchy B that are related to the specified item number of the hierarchy B (step 3).

The interaction processing unit 8 stores the specified item number and displays the corresponding item name (step 4).

The interaction processing unit 8 displays a list of the item numbers and item numbers of the hierarchy C related to the selected item number of the hierarchy B (
Step 5).

The interaction processing unit 8 stores the item number of the selected hierarchy C and displays the item name (step 6).

For example, if "by company" on layer A, "OA system" on layer B, and r5TEP3J on layer C are selected in sequence, the keyword code will be r030101J. Note that free comments are not specified in the case of document search.

When the user instructs to execute a search, the interaction processing unit 8 inputs the stored keyword code to the search unit 10 (step 7).

In the next step 8, the search unit 10 compares the input keyword code and the keyword code in the keyword storage unit 9 one by one. Since this comparison is a comparison of numerical codes (free comments are not included in the comparison), it can be performed faster than before.

The search unit 10 reads the search information stored in association with the keyword/code that matches the comparison and sends it to the control unit 2, and also sends the free comment of the corresponding keyword/code to the interaction processing unit 8. The dialogue processing unit 8 causes the display device 4 to display this free comment. If there are multiple candidate documents, a list of free comments corresponding to each candidate document is displayed.

In step 9, if there is only one candidate document, the control section 2 reads the image of the document from the document storage section 1 according to the search information, passes it to the interactive processing 8, and displays it on the screen. If multiple candidate documents are found, the user selects the document considered to be the desired document on the screen from the displayed free comments.

This selection information is transmitted to the control section 2 through the interaction processing section 8. Using the search information for the document specified by this selection information, the control section 2 reads out the image of the document from the document storage device 1 and passes it to the dialog display section 8 to display it on the screen. When another document is selected, an image of that document is displayed as well.

As mentioned above, it is possible to easily search for documents by specifying keywords, but in this embodiment, as described above, up to two keywords can be registered for one document. In other words, there are two search paths for documents. This makes it easier to specify keywords for document searches. Of course, it is possible to register even more keywords for the same document.

Since the keyword storage section 9 is rewritable, registered keywords can be updated (modified, deleted). At this time, there is no need to perform an update procedure regarding the write-once recording medium, and since the keywords are encoded, this update can be easily performed.

Furthermore, since the item group file storage section 3 is rewritable, file updates such as item corrections are possible. You can easily update your keyword system just by updating this file.

Effects of the Invention As is clear from the above explanation, the present invention solves the problems of conventional keyword searches, makes it possible to easily and reliably search documents using uniform keywords, and improves keyword comparison. By increasing the speed, internal processing for document retrieval can be sped up, and registered keywords and keyword systems can be easily updated.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of a document retrieval system according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of a hierarchical keyword item group file, FIG. 3 is an explanatory diagram of a display screen when specifying a keyword, and FIG. The figure is an explanatory diagram of the keyword code, and FIG. 5 is a schematic flowchart of the document search operation. DESCRIPTION OF SYMBOLS 1... Document storage device, 2... Control unit, 3... Item group file storage unit, 4... Display device, 5... Input device, 8... Dialogue processing unit, 9...・Keyword storage section,
10...Search section. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Fig. 42 Fig. 3 Fig. 4 ≦z5 Fig.

Claims (1)

[Claims] A document storage device that stores documents using a write-once recording medium, a control unit thereof, a storage unit for hierarchical keyword item groups, and a display device and an input device for keyword registration or document retrieval. an interaction processing unit that performs interaction processing with a user, a keyword storage unit that stores keyword codes in association with document search information, and a search unit for the keyword code, and the interaction processing unit performs keyword registration or In the case of document search, the top level item group stored in the item group storage unit is displayed on the display device, and when one item is selected by the input device, the next item related to the item is displayed. The interactive process of displaying the item groups in the hierarchy on the display device, and displaying the next item group related to the selected item when one item is selected, is executed up to the item group in the lowest hierarchy. In the case of keyword registration, the search unit inputs the keyword code consisting of the numbers of items of all the layers in the search unit, and in the case of keyword registration, the search unit inputs the keyword code input from the interaction processing unit into the keyword code specified by the control unit. The document search information is stored in the keyword storage unit in association with the document search information, and in the case of document search, the document search information stored in association with the keyword code that matches the keyword code input from the interaction processing unit is stored in the keyword storage unit. The keyword is read from the keyword storage section and given to the control section, and the control section specifies document search information to the search section in the case of keyword registration, and searches the document given by the search section in the case of document search. A document retrieval system characterized in that the document storage device reads a corresponding document based on the information.