JPH07244667A - Information retrieval method - Google Patents

Abstract

PURPOSE:To shorten the time required for reretrieval and to easily and securely obtain information regarding intended peripheral data by providing a set revising function which generates a set of revision retrieval results consisting of peripheral data and retrieval result sets meeting set revision conditions on the basis of a retrieval result set and set revision conditions which are specified. CONSTITUTION:A retrieval process part 2 reads the indicated retrieval result set out of a retrieval result set holding part 6 and expands it on a memory 3, and passes its address pointer and set revision conditions to a retrieval result set operation part 7. The retrieval result set operation part 7 performs a revision process based upon the set revision conditions for the retrieval result set expanded on the memory 3 to generate a revision retrieval result set having the peripheral data added to the original retrieval result set. The retrieval process part 2 adds a new set number thereto and stores the result in the retrieval result set holding part 6, and also passes the set number and the quantity of data to a control part 1, which outputs them at a display part 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information search method, and particularly to a narrowed search (or 2) for a large amount of data.
Next search), a preferred information search method.

[0002]

2. Description of the Related Art Conventionally, a narrow-down search (or secondary search) has been known as a method for searching information in a database. In the narrowed search, the first condition is specified by a keyword including a wide range of data, and an information search (primary search) is performed on all data. The obtained search results are held in the system as a primary set. Specifying the second condition with a keyword that includes data in a narrower range than the above, information search for the primary set (secondary search)
I do. The obtained search results are held in the system as a secondary set. By specifying the third condition with a keyword that includes data in a narrower range, an information search (tertiary search) is performed on the secondary set. By repeating this operation, it is possible to reduce the number of searches and extract the target data record from a large amount of data records at the lowest possible search cost (Makiko Miwa, "The Second Edition of the Searcher- Advanced database search- "P85-88, 1992 July
March 30, published by Maruzen Co., Ltd.).

[0003]

That is, in the above conventional information retrieval method, the primary retrieval (or the secondary retrieval) is performed.
The search results obtained by
The desired data is extracted by holding it as a secondary set and performing a secondary search (or a tertiary search) on this. For this reason, for example, when searching the minutes of a parliament: ・ All data = All minutes data ↓ ・ Primary set = Budget-related minutes data ↓ ・ Secondary set = Revenue-related minutes data ↓ ・Third-order set = Narrowing down like the tax-related minutes data.

By the way, the related information (peripheral data) which is not included in the primary set (or the secondary or tertiary set) which is the search result obtained as described above but which is close to the periphery of the above set is obtained. There are often times when you want to use it as a reference. For example, in the above-mentioned minutes search, although it was not included in the third set (tax-related minutes data), it was discussed before and after the tax-related minutes in order to grasp the progress of the minutes. For example, if you want to know about the proceedings.

However, the function of the above-mentioned conventional information retrieval method is limited to only narrowing down the range of the search target, and it is possible to obtain information about peripheral data not included in the search result obtained by the narrowing down. There was a problem that I could not do it. Therefore, when trying to obtain the information of the peripheral data, it is necessary to perform a narrowed search from all the data again for the peripheral data, and a new search cost is required. there were. Further, there is a problem in that even if a search is performed, the intended peripheral data may not be surely obtained as a search result.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above problems and provide an information retrieval method capable of easily and reliably obtaining information on peripheral data of retrieval results by narrowing at low cost. .

[0007]

In order to achieve the above object, the information search method of the present invention is an information search method in which a narrowed search by a specified specific keyword is repeatedly performed until a desired search result set is obtained. In the above, the configuration is provided with a set renewal function for generating a renewal search result set consisting of peripheral data satisfying the set renewal condition and the search result set based on the specified search result set and set renewal condition. .

Further, a structure is provided which has a set holding function for holding the search result set generated by the narrowing-down search or the set update function, etc. even after the end of the search work for the search result set. Is.

[0009]

The operation based on the above configuration will be described.

According to the information retrieval method of the present invention, in the information retrieval method in which the narrowed retrieval by the designated specific keyword is repeatedly performed until the desired retrieval result set is obtained, the information retrieval method is based on the designated retrieval result set and the set renewal condition. In addition, by performing a refinement search again from all data as in the conventional case, by having a set renewal function that generates a renewal search result set consisting of peripheral data satisfying the set renewal condition and the search result set. Since it is possible to obtain information about peripheral data that is not included in the search result set, it is possible to save the time required for the conventional re-search and easily and reliably obtain the intended information about the peripheral data. it can.

Further, a structure is provided which has a set holding function for holding the search result set generated by the narrow-down search, the set update function, etc. even after the end of the search work for the search result set. Due to
When a search request that requires the same search result set occurs during another search operation, it is not necessary to perform a narrowed search, and the number of searches corresponding to the narrowed search is basically only the first one. , The total number of searches can be reduced.

Therefore, it is possible to easily and surely obtain information about the peripheral data which is not included in the search results obtained by narrowing down all the data, and to reduce the search time and the number of searches to improve the efficiency of information search. And the search cost can be reduced.

In addition to this, by independently providing a narrowing search function, a set renewal function, a set holding function, etc., the work of changing the existing processing system accompanying the additional design of the processing system for realizing the information search method of the present invention can be performed. It can be reduced.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the information retrieval method of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a block diagram showing the schematic arrangement of an information search apparatus for implementing an embodiment of the information search method of the present invention. In the figure, 1 is a control unit, 2 is a control unit 1, and a search processing unit that performs various processes (including narrowing-down search process) necessary for a search is performed. 3 is various data processed in connection with the search. A memory for storing 4 is a display unit for visualizing various information necessary for retrieval and providing it to an operator, 5 is an operating unit for inputting various information or instructions from the operator, and 6 is all data by retrieval. A search result set holding unit that holds information about a search result (search result set) selected from, and 7 generates an update search result set described later based on the search result set (criteria search result set) obtained by the narrowing search. It is a search result set operation unit for performing. The control unit 1 and the search processing unit 2 realize the processing of the search control function, the search result set holding unit 6 realizes the processing of the set holding function, and the search result set operating unit 7 realizes the processing of the set updating function. There is.

In FIG. 1, the search result set and the set renewal condition input by the operator from the operation unit 5 are passed to the search processing unit 2 via the control unit 1. The search processing unit 2 reads out the specified search result set from the search result set holding unit 6, expands it on the memory 3, and passes the address pointer and the set update condition to the search result set operating unit 7. The search result set operation unit 7 performs a renewal process based on the set renewal condition on the search result set expanded on the memory 3 to obtain a new search result set in which peripheral data is added to the original search result set, that is, An update search result set is generated. The search processing unit 2 adds a new set number to the generated new renewal search result set, stores the new set in the search result set holding unit 6, and sets the set number and the number of data items of the renewal search result set in the control unit 1. Hand over to. The control unit 1 outputs the set number and the number of data items of the update search result set to the display unit 4.

FIG. 2 is a conceptual diagram of a work list in one embodiment of the information retrieval method of the present invention. In the figure, (1),
(2), (3), ... (N-1), (N) are the information numbers uniquely assigned to all the data to be searched, and the grid corresponding to each information number hits the data. Flag (“1” = corresponding flag indicating that there is a hit and “0” = non-corresponding flag indicating that there is no hit) Storage area)
Shown respectively.

In FIG. 2, a new update search result set is generated by a flag "1" corresponding to a storage area within a specified range existing around the storage area of the flag corresponding to the specified information number, based on the operator's specification. It is realized by setting. For example, when the specified information (5) is hit (the corresponding flag “1” is set in the information (5)), the information before and after the specified range (the previous information in this embodiment)
(4) and later information (6)) is added as peripheral data to generate the update search result set, the information (4) and (6)
The corresponding flag "1" is set in the storage area of. There is no problem if either of the information (4) and (6) has already been hit.

Next, one embodiment of the information retrieval method of the present invention will be described more specifically.

FIG. 3 is a flow chart showing the processing steps of an embodiment of the information retrieval method of the present invention. In the figure, first, the command input by the operator from the operation unit 5 in FIG. 1 is analyzed to retrieve the search result set number, and
The corresponding search result set is read out from the search result set group held in the search result set holding unit 6 and expanded in the memory 3 (step 100). Then, the set renewal condition designated by the operator is fetched into the search result set (step 101), and the detailed information necessary for generating a new renewal search result set is retrieved from the set renewal condition and the search result set operating unit 7 (Step 102). The search result set operation unit 7 calculates the range of influence of the set update condition, calculates the number of worklists to be created based on this (step 103), and creates a candidate list (step 104). Then, the logical sum operation of all candidate lists and the original search result set is executed to obtain the target update search result set (step 105). further,
The number of hit information items in the obtained update search result set is calculated (step 106), and the number of information items is “0”.
It is determined whether or not (step 107). Step 107
If it is determined that the number of information items is “0”, the fact that there is no hit information is transmitted to the search processing unit 2 and the process is terminated (step 108). If it is determined that the number of information items is not “0”, the number of hit information items and each information number are transmitted to the search processing unit 2 and the process ends (step 109). In any of the above cases, the search processing unit 2 outputs the transmitted information to the display unit 4 via the control unit 1.

FIG. 4 is a diagram showing an example of a search result set group held in the search result set holding unit in FIG. In the figure, the same components as those in FIG.
The description is omitted. Further, # 1, # 2, # 3, ... #M are worklists corresponding to search result sets according to search conditions specified by different keywords.

FIG. 5 is a diagram showing an example of the candidate list created in step 104 in FIG. In the figure, the work list of # 3 is the search result set corresponding to the search result set number specified in the command input to the operator, and the work list of candidate # 1 is a hit in the work list of # 3. The candidate list in which the corresponding flag “1” is set for the information before and after the information (5) (previous information (4) and subsequent information (6)), the work list of candidate # 2 is the work of # 3 The candidate lists in which the corresponding flag “1” is set for the information (previous information (6) and subsequent information (8)) before and after the hit information (7) in the list are respectively shown. Worklist # 3,
A new list # 3a indicating the update search result set is obtained by performing the logical sum operation of all the candidates # 1 and # 2.

In the present embodiment, a plurality of candidate lists are collectively created on the memory and the logical sum operation is performed to generate the renewal search result set, but the present invention is not limited to this. For example, by creating a candidate list one by one and repeatedly performing the logical sum operation for the number of times, or by sequentially searching the search result set from the first information number, the corresponding flag according to the set renewal condition. A similar update search result set can also be generated by performing the setting of. Further, in this embodiment, the peripheral data is used as the information before and after the hit information, and the determination before and after is performed by the “information number”. However, in addition to this, the creation date, the employee number, etc. are created. Person number ”
You may judge before and after by such as. In the above, in the before-and-after judgment by "creation date", the update search result set in which the information created or registered before and after the creation date specified by the operator is added is generated, and the "author number such as employee number" is generated. In the determination of before and after by, the update search result set to which the information that the persons who are assigned the employee numbers before and after the creator designated by the operator are created or registered is added is generated.

[0024]

As described above in detail, according to the information search method of the present invention, a narrowed search by a specified specific keyword is repeatedly performed until a desired search result set is obtained. Based on the retrieved search result set and the set renewal condition, the configuration is provided with a set renewal function for generating a renewal search result set including the peripheral data satisfying the set renewal condition and the search result set. Since it is possible to obtain information about peripheral data that is not included in the search result set without performing a narrowed search again from all data, the time required for conventional re-search can be saved and the target peripheral area can be saved. It is possible to obtain the information about the data easily and surely.

Further, the present invention is configured to have a set holding function for holding the search result set generated by the narrowing search or the set updating function etc. even after the end of the search work for the search result set. Due to
When a search request that requires the same search result set occurs during another search operation, it is not necessary to perform a narrowed search, and the number of searches corresponding to the narrowed search is basically only the first one. The effect that the total number of searches can be reduced is obtained.

Therefore, it is possible to easily and surely obtain information about peripheral data which is not included in the search results obtained by narrowing down all the data, and to improve the efficiency of information search by reducing the search time and the number of searches. Further, the effect that the search cost can be reduced can be obtained.

In addition, by independently providing a narrowing search function, a set renewal function, a set holding function, etc., the work of changing the existing processing system accompanying the additional design of the processing system for realizing the information search method of the present invention can be performed. The effect that it can be reduced is also obtained.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an information search device for realizing an embodiment of an information search method of the present invention.

FIG. 2 is a conceptual diagram of a work list in one embodiment of the information search method of the present invention.

FIG. 3 is a flowchart showing a process of an embodiment of the information search method of the present invention.

FIG. 4 is a diagram showing an example of a search result set group held in a search result set holding unit in FIG.

5 is a diagram showing an example of a candidate list created in step 104 in FIG.

[Explanation of symbols]

 1 control unit 2 search processing unit 3 memory 4 display unit 5 operation unit 6 search result set holding unit 7 search result set operation unit

Claims (1)

[Claims] 1. An information retrieval method for repeatedly performing a narrowed search by a specified specific keyword until a desired search result set is obtained, wherein the set renewal condition is based on the specified search result set and the set renewal condition. An information retrieving method comprising a set renewal function for generating a renewal search result set composed of peripheral data satisfying the above condition and the search result set.