JP2000148776A - Method and system for information retrieval and computer-readable medium where information retrieving program is recorded - Google Patents

Abstract

PROBLEM TO BE SOLVED: To speedily obtain a retrieval result when information retrieval is continuously carried out. SOLUTION: Before a next retrieval key is inputted from an input device, the next retrieval key is predicted (S6) by referring to last retrieval information stored in a storage device and information corresponding to the predicted retrieval key is retrieved from a file device (S7) and stored previously in the storage device (S8); when the next retrieval key is inputted from the input device (S1), it is judged whether or not the next retrieval key is included in the predicted retrieval key (S2) and when so, the information stored previously in the storage device as the retrieval information corresponding to the retrieval key is outputted (S9, S10), but when not, the information corresponding to the retrieval key is retrieved from the file device (S3 to S5).

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 system, and a computer-readable medium storing an information search program, and more particularly to an information search system suitable for an information search system in which a plurality of searches are continuously performed. About the method and so on.

[0002]

2. Description of the Related Art Conventionally, when performing a plurality of information searches, a first search key is input, and the user waits until the search result is displayed on a display device. Then, after confirming the display result, the next search key is input, the user waits for the next search result to be displayed, and repeatedly checks the displayed search result.

[0003] In addition, a sequence of search keys to be continuously input is stored in a file device in advance, and each time an operator inputs a search request from the input device, the search key of the file device is read, and the search result is obtained each time. Some were displayed on a display device. In this case, the operator inputs a search request after confirming the search result being displayed, and causes the display device to display the search result corresponding to the next search key.

[0004]

However, in the above-described conventional example, after an operator inputs a search key or a search request, information search corresponding to the search key is started. In addition, since the information search is performed on a large-capacity file device having a lower throughput than a storage device such as a RAM, it takes time from input of a search key or a search request until a search result is displayed on a display unit. There was such an inconvenience. Further, for example, when a file device is connected via a communication line, there is a disadvantage that it takes more time to obtain a search result due to traffic congestion in the communication line.

[0005]

An object of the present invention is to improve the inconvenience of the prior art, and in particular, to record an information retrieval method and system and an information retrieval program capable of obtaining retrieval results quickly when information retrieval is performed continuously. Its purpose is to provide such media.

[0006]

In order to achieve the above object, according to the present invention, an input of a search key is received from an input device, the input search key is stored in a storage device, and stored in the storage device. In the information search method for searching for information corresponding to the searched search key from a file device, storing the searched information in a storage device, and outputting the search information stored in the storage device to an output device, a next search key is input from the input device. Before the search key is input, the next search key is predicted based on at least the search key input immediately before, information corresponding to the predicted search key is searched from the file device, and the searched information is stored in the storage device in advance. When the next search key is input from the input device, it is determined whether the next search key is included in the predicted search key. If the next search key is included, the search corresponding to the search key is determined. Outputs information previously stored in the storage device as a multicast to the output device, searches must be included information corresponding to the search key from the file system, it adopts a method called. The invention according to claim 3 or 5 is substantially the same.

According to the second aspect of the present invention, a search key string is stored in a file device in advance, the search key is read from the file device, and information corresponding to the read search key is searched from the file device. A process of storing search information in a storage device and outputting the search information stored in the storage device to an output device sequentially for each search key constituting a search key sequence. When the search request is input, the search information stored in the storage device is output to the output device, and thereafter, from the reading of the search key to the storage of the search information in the storage device before the next search request is input from the input device. Is performed beforehand. The invention according to claim 4 or 6 is substantially the same.

[0008] Accordingly, the above-mentioned object is to be achieved.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
A description will be given based on FIG.

FIG. 1 is a block diagram of an information retrieval system according to the present embodiment, and an input device 1 such as a keyboard.
And an output device 2 such as a display monitor, a storage device 3 such as a RAM, and a file device 4 such as a hard disk drive, which are connected to a central processing unit 5. Here, the file device 4 may be a locally connected file device or a file device connected via a communication line or a network. The information to be searched stored in the file device 4 is not particularly limited, such as a relational database or a text file. The file device 4 allows the operator to input the
The search is performed based on a search key K input from.

FIG. 2 is a flowchart of an information search program executed by the central processing unit 5. This information search program may be read from a computer-readable recording medium and executed.

The central processing unit 5 first receives an input of a search key K of a predetermined format from the input device 1 (S1). When the input of the search key is received, it is determined whether the received search key is included in the search key predicted in advance (S
2). At the time when the first search key is received, the search key is not predicted, and the result of this determination is no, and the process proceeds to S3. The central processing unit 5 searches the file device 4 for information corresponding to the received search key (S
3) Store it in the storage device 3 (S4), and output its contents to the output device 2 (S5). The operator checks the search result output to the output device 2 and considers a search key to be input next.

While the operator is thinking of the next search key, the central processing unit 5 predicts the next search key to be input (S6), and stores information corresponding to the predicted search key. Is retrieved from the file device 4 (S7) and stored in the storage device 3 in advance (S8).

Here, the following method can be considered as a method for predicting the next search key. For example, file device 4
If a relational database is stored as a search target in the search key, it is possible to specify some search keys that are likely to be input next from the type of search key entered immediately before or the type of search key that can be entered. is there. For example, the specification of a search key including a search key common to the search key input immediately before may be predicted as the next search key. This is because search keys that are continuously input often include a common search key. If the information to be searched stored in the file device 4 is a text file, the terms included in the text are used as search keys, but the same words as the previously searched words are predicted as the next search key. If so, it is possible to retrieve the information of the same phrase that appears next in the text in advance and store it in the storage device 3. Therefore, when the same phrase is repeatedly searched, the information to be searched next can be pre-read in the storage device 3 in advance.

Subsequently, the central processing unit 5 receives an input of the next search key K from the input device 1 (S1). Here, the next search key K can be received even before the storage of the search information in S8 is completely completed. When receiving the input of the next search key, the central processing unit 5 determines whether the received search key is included in the search key predicted in S6 (S2). Is repeated.

On the other hand, if the received search key is included in the search key predicted in S6, the information prefetched in the storage device 3 as information corresponding to the search key is specified (S9). Is output from the storage device 3 to the output device 2 (S10).

The operator checks the output search result and further examines a search key to be input next.

In the meantime, the central processing unit 5 prefetches the search information corresponding to the search key to be inputted next into the storage device 3 by the processing of S6 to S8 described above.

According to this, by utilizing the play time of the computer while the operator is thinking about the next search key, search information corresponding to the next search key to be inputted is prefetched into the storage device. Therefore, in many cases, it is sufficient to search the storage device 3 instead of searching the file device in response to the input of the search key, whereby the output of the search result to the output device can be speeded up.

Next, another embodiment of the present invention will be described with reference to FIGS. Here, the same parts as those of the previous embodiment are denoted by the same reference numerals, and redundant description will be omitted.

FIG. 3 is a block diagram of the information retrieval system according to the present embodiment. In the present embodiment, a search key column 6 is stored in the file device 4 in advance.
Search keys are read one by one from this search key column,
It is processed by the central processing unit 5. Here, it is not necessary to make each search key included in the search key column relevant, and any search key may be used. Input device 1
Is for the operator to input a search request Y to the central processing unit 5.

FIG. 4 is a flowchart of an information search program executed by the central processing unit 5. This information search program may be read from a computer-readable medium.

First, the operator inputs a search request Y from the input device 1.
Enter Upon receiving the first search request Y from the input device 1 (S11, S12), the central processing unit 5 reads out the first search key from the search key column 6 stored in the file device 4 and stores it in the storage device 3. (S13). Then, the information corresponding to the retrieved read key is retrieved from the file device 4 (S14), stored in the storage device 3 and output to the output device 2 (S15, 16). The operator checks the search result output to the output device 2.

Meanwhile, the central processing unit 5 reads the next search key from the search key column 6 stored in the file device 4 and stores it in the storage device 3 (S17). Then, the information corresponding to the search key stored in the storage device 3 is retrieved from the file device 4 (S18) and stored in the storage device 3 (S19).

After confirming the search result being output, the operator inputs the next search request from the input device 1 (S1).
1). The central processing unit 5 that has received the second or subsequent search request accesses the storage device 3 instead of the file device 4, and outputs the search information pre-read to the output device 2 (S20). Thereafter, the processing from S17 described above is repeated.

According to this, while the operator is checking the search result, the next search key is read, the search information corresponding to the read search key is pre-read in the storage device, and the next search request is input from the input device. Is input, the search information prefetched in the storage device is immediately output to the output device, so that the search result can be output at a high speed in response to the search request.

Here, the storage device and the file device shown in FIG. 1 or FIG. 3 need not be physically one, but may be physically distributed.

[0028]

Since the present invention is constructed and functions as described above, according to the first, third or fifth aspect of the present invention, the computer of the computer while the operator is thinking about the next search key is determined. Using the play time, the search information corresponding to the search key to be input next is pre-read in the storage device, so that the search of the storage device can be performed instead of searching the file device in response to the input of the search key. More cases are needed
Thus, the output of the search result to the output device can be speeded up.

According to the second, fourth or sixth aspect of the present invention, the next search key is read while the operator is checking the search result, and the search information corresponding to the read search key is stored in the storage device in advance. When the next search request is input from the input device, the search information that has been prefetched in the storage device is immediately output to the output device, so that the search result can be output at a high speed in response to the search request. It is possible to provide a computer-readable medium storing an information search method and system, and an information search program, which have never been found before.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a flowchart of an information search program executed by the central processing unit of FIG. 1;

FIG. 3 is a block diagram showing a configuration of another embodiment of the present invention.

FIG. 4 is a flowchart of an information search program executed by the central processing unit of FIG. 3;

[Explanation of symbols]

 Reference Signs List 1 input device 2 output device 3 storage device 4 file device 5 central processing unit 6 search key column

Claims (6)

[Claims] An input of a search key is received from an input device, the input search key is stored in a storage device, information corresponding to the search key stored in the storage device is searched from a file device, and the searched information is stored. In an information search method for storing in a device and outputting search information stored in the storage device to an output device, before a next search key is input from the input device, at least based on the search key input immediately before Predicting the next search key, searching for information corresponding to the predicted search key from the file device, storing the searched information in a storage device in advance, and when the next search key is input from the input device It is determined whether the next search key is included in the predicted search key. If the next search key is included, information stored in advance in the storage device as search information corresponding to the search key is determined. Information retrieval method, wherein the outputs to the output device, to find if not include information corresponding to the search key from the file device. 2. A search key column is stored in a file device in advance, and the search key is read from the file device.
A process of searching the file device for information corresponding to the read search key, storing the search information in a storage device, and outputting the search information stored in the storage device to an output device is performed by each of the processes constituting the search key sequence. In an information search method that is sequentially executed for a search key, when a search request is input from an input device, search information stored in the storage device is output to an output device, and then a next search request is input from the input device. An information search method, characterized in that a process from reading the search key to storing search information in a storage device is performed beforehand. 3. An input device for a search key, an output device for search information, a file device storing information to be searched, a storage device, and a central processing unit, wherein the central processing device is provided with the input device. Receiving the input of the search key from the storage device, stores the input search key in the storage device, searches the file device for information corresponding to the search key stored in the storage device, and stores the searched information in the storage device. In the information search system for storing and outputting search information stored in the storage device to the output device, the central processing unit is configured to input at least immediately before a next search key is input from the input device. Predicting the next search key based on the search key, searching the file device for information corresponding to the predicted search key, storing the searched information in a storage device in advance, When the next search key is input from the input device, it is determined whether the next search key is included in the predicted search key. If the next search key is included, the storage device is used as search information corresponding to the search key. An information retrieval system characterized by outputting information stored in advance to the output device, and if not included, retrieving information corresponding to the search key from the file device. 4. A search request input device, a search information output device, a file device storing information to be searched, a storage device, and a central processing unit, wherein the file device has a search key string. The central processing unit reads a search key from the file device, searches the file device for information corresponding to the read search key, stores the search information in a storage device, and stores the search information in the storage device. In an information search system for sequentially executing a process of outputting stored search information to an output device for each search key constituting the search key sequence, the central processing unit receives a search request from the input device. Sometimes, the search information stored in the storage device is output to an output device, and after that, before the next search request is input from the input device, the search key is read and the storage device is searched. An information retrieval system characterized by executing processing up to storage of search information. 5. A search key input from an input device is received, the input search key is stored in a storage device, information corresponding to the search key stored in the storage device is searched from a file device, and the searched information is stored. In a medium storing an information search program for causing a computer to execute a process of storing the search information stored in the storage device and outputting the search information stored in the storage device to an output device, at least before a next search key is input from the input device, at least Predicting the next search key based on the search key input immediately before, searching the file device for information corresponding to the predicted search key, storing the searched information in a storage device in advance, When the next search key is input from the, it is determined whether or not the next search key is included in the predicted search key. An information search program that outputs information previously stored in the storage device as search information to the output device, and causes the computer to execute a process of searching the file device for information corresponding to the search key if not included. The recorded media. 6. A search key column is stored in a file device in advance, and the search key is read from the file device.
A process of searching the file device for information corresponding to the read search key, storing the search information in a storage device, and outputting the search information stored in the storage device to an output device is performed by each of the processes constituting the search key sequence. When a search request is input from an input device, a search information stored in the storage device is output to an output device on a medium that stores an information search program that causes a computer to execute processing that is sequentially performed on search keys. A medium storing an information search program for causing a computer to execute processing from reading of the search key to storage of search information in a storage device before a next search request is input from the device.