JPH0283665A - Information retrieval system - Google Patents

Abstract

PURPOSE:To accelerate a retrieval processing by setting a prescribed amount of retrieval item data at every information file in advance, comparing a retrieval item designated in retrieving information with the retrieval item data, and taking out a prescribed information file when they coincide. CONSTITUTION:A retriever main body 6 is equipped with an information file storage part 9 to store the information file and a retrieval item buffer 10 to hold the retrieval item inputted from an input device 7 transiently, and also, it is provided with a retrieval item data storage part 11 to store necessary and sufficient retrieval item data in advance at every information file. When the necessary and sufficient items are inputted to the retrieval item buffer 10, display representing a retrievable state is performed by an output device 8, and simultaneously, a corresponding information file is outputted. In such a way, since it is possible to designate the necessary and sufficient number of retrieval items for the designation of a desired information file with a few number of items when the necessary and sufficient number of retrieval items is different at every information file, the efficiency of a retrieval operation can be improved and a retrieval time can also be shortened.

Description

[Detailed Description of the Invention] [Summary] Regarding an information retrieval method, the purpose of speeding up the retrieval process is to provide at least one
In an information search method in which the above search items are specified and a specific information file that satisfies all the search items is searched, a predetermined number of search item data is set in advance for each information file, and the data specified at the time of search is searched. The search item data is compared with the search item data, and when they match, a predetermined information file is extracted, thereby performing the search process in a short time without unnecessarily increasing the number of search items.

[Industrial Field of Application] The present invention relates to an information retrieval method for retrieving information files stored in a database.

The search unit is configured to search for a specific information file that matches all of the hierarchical information search items from major categories to minor categories when specified.

In recent years, the capacity of databases has increased and information files have become more diverse, and it is desired to search these suspended information files at higher speeds.

[Prior Art] FIG. 4 shows an example of an information retrieval method using a conventional retrieval device. In the figure, a search device main body 1 includes a data file storage section 2 for storing information files and a search information buffer 3 for temporarily storing search items, and search items are inputted from an input device 4 such as a keyboard. Then, a specific information file that matches the search item is output from the data file storage section 2 to an output device 5 such as a CRT.

Figure 5 symbolically shows the data structure in the search method. For example, in order to search for the information file indicated by E1 in the figure, there are five levels of search items from the major classification A1 to the smallest classification El. (AlB2.C4,D3.
By inputting ``El'', you can create 1q of specific information files that satisfy all five items.

[Problems to be Solved by the Invention] However, in such conventional information retrieval methods, it is necessary to specify the least common denominator search items for all information files. When searching for, for example, the information file indicated by Xl in the second layer in FIG. 5, all five search items had to be specified.

As a result, searching becomes complicated! This resulted in an increase in 2a2 hours.

The present invention has been made in view of such conventional problems, and it is an object of the present invention to provide an information retrieval method that can reduce the time required for information retrieval processing.

[Means to solve the problem] FIG. 1 is a diagram showing the principle of the present invention.

First, the present invention is directed to an information search method that includes a search device main body 6, an input device 7, and an output device 8, and when a search item is inputted through the input device 7, an information file corresponding to the search item is output to the output device 8. shall be.

In contrast to such an information retrieval method, in the present invention, the retrieval device main body 6 includes an information file storage section 9 that stores information files and temporarily stores search items input from the input device 7. In addition to being equipped with a search item buffer "10,"
It has a search item data storage section 11 that stores in advance necessary and sufficient search item data for each information file. In other words, the search item data storage unit 11 does not identify each information file using the least common multiple of all the information files, but instead specifies a unique number of items corresponding to each information file. When the necessary and sufficient items are input into the search item buffer 10, the output device 8 is caused to display that the search is possible and output the corresponding information file.

[Operation] In the information retrieval system of the present invention having such a configuration, when the necessary and sufficient number of search items for specifying a desired information file is required for each information file, it is possible to specify a desired information file with a smaller number of items. Therefore, the efficiency of the search operation can be improved and the search time can be shortened.

[Example] FIG. 2 is a groove diagram showing an embodiment of the present invention. .

In FIG. 2, 12 is the main body of the search device, 13 is a keyboard, 14 is a monitor such as a CRT, and 15 is a printer for printing. The search device body 12 includes a register 16 that temporarily holds search items keyed in from the keyboard 13, and an information file memory 1 that stores information files.
7. Includes a search item memory 18 that stores search item data corresponding to each information file, and compares the search item input into the register 16 with the search item data in the search item memory 18 to determine whether they match or do not match. It has a determining section 19 that makes a determination.

That is, in the search item memory 18, for example, when searching for an information file specified by five items as shown by El in FIG.
The unique number of items for each information file is 3 search item data when specified by 3 items as shown in , and 2 search item data when specified by 2 items as in ×1. Search item data is stored.

Next, the search operation according to the embodiment shown in FIG. 2 will be explained with reference to FIG. 3.

When the first search item (Sl) is input in the routine 100, it is stored in the register 16. Routine 11
0, the determination unit 19 compares the item data pre-stored in the search item memory 18 with the search item (Sl), and if matching search item data is found, a routine 120 is performed to select a specific information file. It is determined that it is now possible to search for monitor 1, and in the next routine 130
4 to indicate that the input of the search item has been completed, and outputs a specific information file corresponding to the search item to the information file memory 17 to the monitor 14 and/or printer 15.

On the other hand, if no search item data matching the search item is found in the routine 120, the routine 150
, and the monitor 14 displays a prompt to input the next search item. When the next search item is input from the keyboard 13, in the routine 160, the register 16 holds a new search item (SLS2) that is a combination of the previous search item (Sl) and the next search item (S2), and then returns to Routine 11
0 is executed. Then, the judgment unit 19 selects the search item (SL
In this way, search item data corresponding to S2) are compared, and multiple search items (S L S 2...Sn
) and the search item data corresponding to the specific information file match. If there is a match, routine 13
One search process is completed by performing 0 to 140 output processes.

In this way, when the number of search items differs for each information file, the desired information file can be retrieved by specifying the necessary and sufficient number of items, thereby speeding up the search operation.

[Effect of the invention] As explained above, in the present invention, instead of specifying a fixed number of search items for all information files as in the past, it is possible to specify a fixed number of search items for all information files. Since the search can be performed using a large number of items, the search process can be simplified and speeded up.

[Brief explanation of the drawing]

Fig. 1 is a diagram explaining the principle of the present invention; Fig. 2 is a configuration diagram of an embodiment of the present invention; Fig. 3 is a flowchart for explaining the operation of the embodiment; Fig. 4 is a symbolic diagram of the configuration of a conventional search device. The configuration diagram shown in FIG. 5 is an explanatory diagram for explaining the principle of the conventional search method. 6: Search device main body 7 Two-man power device 8: Output device 9: Information file storage section 10: Search item buffer 11: Search item data storage section 13: Keyboard 14: Monitor 15: Printer 16: Register 17: For information file Memory 18: Search item memory 19: Judgment section In the diagram, 4 times around the diameter. , sand, necropsy ε quadruple diagram Figure 1 Figure 8

Claims (1)

[Claims] (1) In an information search method in which at least one or more search items are specified and a specific information file that satisfies all the search items is searched from the information file storage unit (9), a specific number of information files are searched for each information file. It is equipped with a search item data storage section (11) in which search item data is set in advance, and the search item data storage section (11) stores the search items specified at the time of search and the search item data storage section (11).
11), and if they match, a specific information file is retrieved from the information file storage section (9).