JPS5834864B2 - information retrieval device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an information retrieval device that makes it possible to appropriately modify search data based on aggregation results of keywords included in retrieved information in information retrieval using keywords.

BACKGROUND OF THE INVENTION With the advanced development of the information society, a huge amount of information is stored in storage files along with keywords included in the information, and necessary information is searched using the keywords.

In this keyword search, a plurality of keywords are generally combined using logical operators such as AND, OR, or NOT, thereby creating search data (search formula or search sentence) that specifies desired information.

Then, the desired information is searched by searching and extracting information that satisfies the above search data from among information registered with keywords in data files and databases.

However, in such a keyword search, the user makes a judgment based on the information obtained by the above search, and if necessary, modifies the search data indicated by the keyword and performs the search again.

However, conventionally, the only way to evaluate the search data indicated by the keyword is based on the user's experience, and it has been difficult to make appropriate corrections to the search data.

For this reason, unnecessary information was often searched for, and search data was provided through trial and error, making it impossible to obtain efficient information.

The present invention has been made in consideration of the above circumstances, and its purpose is to present aggregated data of keywords included in keyword searched information to the user. An object of the present invention is to provide an information retrieval device that can provide appropriate guidelines for modifying search data such as τF, thereby improving search efficiency.

That is, the present invention aggregates the keywords of the information searched according to the keywords of the search data, and displays the aggregated results together with the keywords, so that the data can be used as appropriate advice data for modifying the search data. The aim is to improve information retrieval efficiency.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic configuration diagram of an embodiment device, and FIG. 2 is a diagram showing an example of a control flow in the device.

In FIG. 1, reference numeral 1 denotes a data file consisting of a large-capacity memory, which stores a plurality of pieces of information together with keywords included in the information.

The above information may have only one keyword, but generally it often includes a plurality of keywords corresponding to the amount of information.

The input unit 2 constituted by a keyboard device or the like takes in search data constituted by keywords inputted by the user of the keyboard device, and registers the search data in the memory 3 and also registers the search data in the control unit 4. A data input signal is provided to.

In response to this data input signal, the control unit 4 is activated and controls a series of information search processes to be described later.

That is, the control section 4 initializes each section of the apparatus prior to information retrieval, and gives operation instructions to the search expression analysis section 5.

As a result, the analysis section 5 takes in the search data registered in the memory 3, analyzes it, and converts the data into a format suitable for the keyword search of the data file 1.

For example, when the input search data is , the keyword a'2 is converted to the keyword a2 having a standardized synonymous relationship and output as data.

The data converted by the search formula analysis section 5 in this manner is given to the search section 6, and the search section 5 searches for information containing a keyword that satisfies the above search data.

The information searched from the data file 1 and retrieved by the search section 6 in this way is carried out under the instructions of the control section 4.
The information is output to a predetermined information output device (not shown).

On the other hand, the keyword extraction unit 7 extracts each keyword included in the information extracted by the search unit 6,
This is given to the control section 4.

The keywords included in the information given to the control unit 4 in this manner are registered and stored in the keyword memory 8 in sequence.

Under the control of the control section 4, the keyword reading circuit 9 sequentially reads out the keywords stored in the keyword memory 8, and counts the number of keywords stored in the memory 8 for each keyword.

That is, the keywords each of the plurality of pieces of information retrieved from the data file 1 using the search data are aggregated for each keyword.

The keywords and their total values compiled by the keyword reading circuit 9 are transferred to the display control circuit 10 and displayed on the display 11 connected to the circuit 10.
In other words, it is presented to the user.

Note that this display is performed by a control command from the control section 4 based on a display request inputted via the input section 2, for example.

Further, the keyword reading circuit 9 rearranges the keywords according to the total value of the keywords, for example, in descending order of the keywords with the highest total value, that is, the keywords with the highest frequency of appearance.

As a result, in the display, keywords with high aggregate values are displayed in order along with the aggregate values.

Information retrieval in the apparatus configured as described above will be explained in more detail according to the control flow shown in FIG.

Search data input via the input unit 2 is read into the memory 3.

For example, the above search data includes keywords ai (i=1,
2.3~) AN of the logical operator that combines this keyword
D is expressed as rice and OR as 10th grade.

For example, it is input as an integrated circuit (epitaxial growth layer + low resistivity buried layer), etc.

Thereafter, the search data input in this manner is guided to the search expression analysis section 5 and converted into a format suitable for searching the data file 1.

For example, if the data file 1 stores the above-mentioned keyword in code, the code is converted into a code corresponding to the keyword.

Also, in this case, if the keyword [IC] exists and the keyword registration form in data file 1 is [integrated circuit], then (IC) is changed to [integrated circuit] because the above two keywords are synonyms. After conversion, necessary measures such as encoding are taken.

Using the search data thus converted into a format suitable for search, a search is performed over all of the information registered in the data file 1, and information that satisfies the search data is extracted.

As a result, information that satisfies the n pieces of search data is obtained, for example.

The control unit 4 then sets the number n of retrieved information and sequentially sets the value of the counter m to rOJ.

Then, the counter is sequentially incremented, and the m-th value indicated by the value is incremented.
The keyword included in the th search information is extracted and registered in the keyword memory 8.

This is sequentially repeated until the counted value m of the counter reaches the set value n.

That is, data processing is performed in which the n pieces of information searched for by keyword are selected one by one, keywords included in the information are extracted, and the keywords are sequentially registered in the keyword memory 8.

After this data processing is performed on all the keyword searched information, the keyword reading circuit 9 is activated.

This reading circuit 9 performs a process of summing up the number of keyword appearances for each keyword by searching for keywords registered in the keyword memory 8.

For example, the keyword at the beginning address of the keyword memory 8 is read and registered, and the number of occurrences "1" is set in the auxiliary address.

After that, the keyword of the next address is read and compared with the previously registered keyword, and if it matches, the above number of occurrences is incremented to "2", and conversely, if there is no match, a new keyword is added. Register the keyword and set the number of occurrences to "1".

This is performed sequentially for all keywords registered in the keyword memory 8.

As a result, the keyword reading circuit 9 can obtain a total result table as shown below, for example.

Then, the keyword reading circuit 9 rearranges the keywords in descending order of frequency according to the total data (number of times) 611.

This result table is modified as follows.

Information about the keywords obtained in this way is
Displayed in response to a user's (searcher's) request.

With this device having such a function, it is possible to very appropriately obtain evaluation information that appears in search data, that is, information regarding keywords.

Therefore, it becomes very easy to modify the previously input search data, and it is also possible to make modifications that reflect the search intention.

By the way, in the past, when changing search data, it was necessary to inspect all of the searched information, then add the searcher's experience to determine which keywords should be modified, and then modify the search data.

For this reason, when there is a large amount of search information, it is extremely inconvenient to inspect all the information in detail, and to find out how many keywords appear, it is necessary to perform statistical processing using another method. It could not be denied that it would be complicated.

In this respect, according to this device, regardless of the number of searched information items,
It is possible to instantly obtain a tabulated list of keywords, and to accurately understand the degree to which they are reflected.

Furthermore, since it is possible to easily determine whether a keyword is appropriate or not, it is possible to effectively modify search data.

Furthermore, from the data related to the keywords mentioned above, it is possible to judge the suitability of the search data, that is, whether it sufficiently reflects the search intent.Using this, it is possible to search and output only the information that is really needed without waste. can.

Therefore, in combination with appropriate modification of search data, desired information can be quickly searched, and a significant improvement in search efficiency can be expected.

Further, the information searcher is not required to have any special experience, and the information searcher can be easily handled.

Note that the present invention is not limited to the above embodiments.

For example, the format of information to be registered in a data file and the format of keywords used as search data may be determined according to specifications.

Further, the number of times a keyword appears may be counted each time keyword searched information is obtained, or this may be performed by software processing.

In short, the present invention can be implemented with various modifications without departing from the gist thereof.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of an apparatus showing an embodiment of the present invention, and FIG. 2 is a diagram showing an example of a control flow. 1... Data file, 2... Input section, 3... Memory, 4... Control section, 5.
...Search formula analysis section, 6...Search section, 7.
...Keyword extraction unit, 8...Keyword memory, 9...Keyword reading circuit, 1
0...Display control circuit, 11...Display.

Claims (1)

[Claims] 1. A data file storing a plurality of pieces of information together with one or more pre-assigned keywords for each piece of information, an input section into which search data consisting of a search formula or search sentence including the keywords is input, and from this input section a search unit that searches the data file according to input search data and selectively outputs only a group of information that satisfies the search data; a keyword memory for sequentially registering the key nodes registered in the keyword memory; a means for creating a collection 1 result table for calculating the number of pieces of information to which the keyword registered in the keyword memory is attached in the information group; An information retrieval device comprising: a display for displaying a tabulated result table.