JPH09212505A - Document processor and its method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a document processor summarizing a document corresponding to the degree of user's interest. SOLUTION: The document processor is provided with a document data base 101, the number of access holding part 102, a compressibility calculation part 103, an input document holding part 104, a document sorting part 105, a document summarizing part 106, a summarized document holding part 107 and a summarized document display part 108. A document sorting part 105 sort-processes an inputted document. The document sorting processing gives a sorting category to the document. The number of access to the given category is investigated and a compressibility calculation part 102 calculates a compressibility from the investigated number of access. The compressibility is made 10 when the number of access is not more than 10 times, the compressibility is made 3 when the number of access is not more than 100 times and the compressibility is made 2 when the number of access is not less than 101 times. The document summarizing part 106 summarizes the document according to the calculated compressibility. The summarized result is held in the summarized document holding part 107. The document held in the summarized document holding part 107 is displayed by the summarized document display part 108 by each sorting category.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a document processing device and method.

[0002]

2. Description of the Related Art In recent years, storage media have been increased in capacity and price,
With the spread of word processors and the like, the amount of electronic documents is increasing. In addition, the network is being improved, and the amount of electronic documents that reach users by media such as electronic mail and electronic news is increasing. Therefore, there is a problem of so-called "information flood" in which more documents than the user can process are input.

As a measure against this problem, a technique of "document summarization" for summarizing the contents of each document has been used in order to reduce the amount of each document. In the “document summary”, for example, each sentence in the document is given a score according to the degree of importance, and a sentence is generated at a determined ratio by selecting the sentence with the highest score. Here, this ratio is referred to as a compression ratio, and is defined as a ratio between the “amount of original document” and the “amount of summary document”.

That is, the higher the compression rate, the shorter the length of the summary document. Conventionally, the compression rate has been set to a fixed value in advance on the device side, or the user has directly set the compression rate to a fixed value.

[0005]

However, it is desirable that the compression rate be different depending on the type of document. The user wants to know the details of the types of documents that have a high degree of interest. On the other hand, it is only necessary to be able to briefly understand the content of a document that is not so interesting. If a uniform compression rate is set, such a request cannot be met.

There is a case where a user has a means for setting a compression rate to an arbitrary value when viewing a document.
In this case, you should set a low compression rate for each type of document whose details you want to know in detail, and set a high compression rate for each type of document whose content you want to know briefly. There must be.

Therefore, an object of the present invention is to provide a document processing device that summarizes a document according to the degree of interest of the user.

[0008]

In order to achieve the above object, a document processing apparatus according to claim 1 of the present invention summarizes the held document and the document holding means for holding the input document. In a document processing device provided with summarizing means, a classification assigning means for assigning a classification category to the document held in the document holding means, and a determining means for determining the degree of user's interest for each of the assigned classification categories. Setting means for setting a compression ratio according to the determined degree of interest of the user, and the summarizing means summarizes the document according to the set compression ratio.

According to a second aspect of the present invention, there is provided the document processing apparatus according to the first aspect, wherein the determining means includes counting means for counting the number of times of access to the classification category to which the document belongs, and the setting is performed. The means sets the compression rate to be lower as the counted number of accesses increases.

A document processing method according to a third aspect of the present invention is a document processing method for holding an input document and summarizing the held document, assigning a classification category to the held document, and assigning the classification category. The degree of interest of the user is determined for each classification category, a compression rate is set according to the determined degree of interest of the user, and the document is summarized according to the set compression rate.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a document processing apparatus of the present invention will be described. FIG. 1 is a block diagram showing the configuration of the document processing apparatus according to the embodiment. In the figure, 1
Reference numeral 01 is a document database that stores documents saved by a user, and 102 is an access count holding unit that holds the number of times each category category in the document database 101 is accessed.

Reference numeral 103 denotes a compression ratio calculation unit for calculating the compression ratio of a document, 104 an input document holding unit for holding a document entered under a user, and 105 a classification of documents held in the input document holding unit 104. A document classifying unit 106 is a document summarizing unit that summarizes documents according to the compression ratio calculated by the compression ratio calculating unit 103.

Reference numeral 107 denotes a summary document holding unit that holds the summarized document for each classification category, and 108 denotes the summary document holding unit 10.
7 is a summary document display unit for displaying the documents held in 7.

FIG. 2 is a block diagram showing the hardware configuration of the document processing apparatus. In the figure, 201 is a control memory for storing the control procedure of FIG. 3 described later. The control memory 201 may be ROM or RAM.
Reference numeral 202 denotes a memory, which is the access count holding unit 10 described above.
2. The input document holding unit 104 and the summary document holding unit 107 are realized.

Reference numeral 203 denotes a central processing unit which performs processing in accordance with the control procedure stored in the control memory 201. Reference numeral 204 denotes a disk, which is the document database 101.
To realize. Reference numeral 205 denotes a display, which implements the summary document display unit 108. The display 205 may be a CRT or a liquid crystal display. 2
Reference numeral 06 is a bus for connecting each component.

FIG. 3 is a flow chart showing the control procedure of the operation of the document processing apparatus. The document classification unit 105 performs document classification processing on the input document (step S30).
1). The document classification process is a process of assigning a classification category to a document, and any generally used method may be used. For example, a keyword set may be defined for each classification category, and the classification category may be determined according to what keyword appears in the input document.

The number of accesses of the assigned classification category is checked (step S302). The number of times of access can be defined as the number of times the document of each classification category stored in the document database 101 is accessed. That is, when a document is searched from the document database 101 and used, the access count of the classification category to which the document belongs stored in the access count storage unit 102 is incremented. At this time, the total number of accesses is also incremented at the same time.

The compression rate calculation unit 103 calculates the compression rate corresponding to the classification category assigned in step S301 from the access count checked in step S302 (step S).
303). The compression rate may be set according to any method as long as the compression rate is set to be higher for the classification category having the smaller number of accesses. FIG. 4 is an explanatory diagram showing the value of the compression rate according to the number of accesses. The compression rate is 10 until the access count is 10 times, the compression rate is 3 until the access count is 100 times, and the access count is 101.
When it is more than the number of times, the compression rate is set to 2.

The document summarizing section 106 sums up the document according to the compression rate calculated in step S303 (step S).
304). The summarized result is held in the summarized document holding unit 107.

It is checked whether any unprocessed document remains (step S305). If unprocessed documents remain, the process returns to step S301 to perform document classification processing. On the other hand, when all the documents have been processed, the process proceeds to step S306.

In step S306, the summary document holding unit 1
The documents held in 07 are displayed on the summary document display unit 108 for each classification category.

FIG. 5 is an explanatory diagram specifically showing the number of times of access for each classification category. FIG. 6 is an explanatory diagram showing the classification category of each document and its compression rate. When the three documents are classified into "J League", "Grand Sumo", and "Professional Baseball", the respective compression ratios are set to the values 2, 10 and 3 based on the number of accesses in FIG. That is, since the classification category of the document 1 is “J League” and the number of accesses of “J League” is the value 107, the compression rate is the value 2 according to FIG. Each document is summarized according to the compression ratio thus obtained.

In the above-described embodiment, the degree of user's interest in each category is grasped by the number of times the category is accessed, but other methods may be used. For example, it may depend on the number of documents stored in each classification category in the document database, and the compression rate is set to be higher for a classification category having a smaller number of documents.

Further, when displaying a document, in the case of a structure in which not only the summary but also the whole sentence can be displayed by selection, it is considered that the category category in which the whole sentence is frequently displayed has a high degree of interest to the user. You can also The ratio of displaying all the sentences, that is, the ratio of the documents displaying all the sentences among the documents belonging to each classification category is stored, and the compression ratio is set to be higher as the ratio is lower.

Furthermore, in the above embodiment, the value of the number of times of actual access was used when determining the compression rate from the number of times of access, but a ratio to the total number of times of access may be used.

In the above embodiment, the compression rate is determined only by the number of accesses, but the total number of documents may be taken into consideration. For example, if the total number of documents to be displayed at that time is n, the compression rate determined by the number of accesses is ro, and the actual compression rate is r, the compression rate may be set according to Expression 1.

[0027]

## EQU1 ## r = ro: 0 <n ≦ 50 r = ro × 1.5: 50 <n ≦ 100 r = ro × 2: 100 <n As a result, when the total number of documents is large, the compression ratio is generally set. Can be increased.

Further, in the above embodiment, the compression rate is set for each classification category to summarize the document, but the compression rate may be calculated after setting the number of characters of the summary document. . For example, when the access count is 101 or more, 400 characters, and the access count is 11 or more and 100
If the number of times is less than or equal to 200, the number of characters is 200. If the number of times of access is less than or equal to 10, the number of characters is 100. When summarizing a document with the number of characters n and the number of characters m, the compression rate of the document is m /
It suffices to summarize with n, and the same document summarization method as in the above-described embodiment can be used.

In the above embodiment, the compression rate is set based on the number of accesses. However, if a means for setting the compression rate to an arbitrary value is prepared by the user, the document belonging to each classification category is displayed. The compression rate may be set from the history of compression rates set by the user. For example, when the user views a document belonging to the classification category A, the average compression ratio set by the user can be used as the compression ratio for the classification category A.

Furthermore, the user may be allowed to set the degree of interest for each classification category by a numerical value.

If the total number of documents is less than or equal to a predetermined number,
It is also possible to cancel the document summary creation. As a result, the user can immediately see the contents of the entire sentence when the number of documents is small.

Furthermore, the present invention may be applied to a system composed of a plurality of devices or an apparatus composed of one device. Needless to say, the present invention can be applied to a case where the present invention is achieved by supplying a program to a system or an apparatus. In this case, by reading out a storage medium storing a program represented by software for achieving the present invention into a system or an apparatus, the system or the apparatus can enjoy the effects of the present invention.

[0033]

According to the document processing apparatus of the first aspect of the present invention, the document inputted by the document holding means is held,
When summarizing the held document by the summarizing means, a classification category is given to the document held in the document holding means by the classification giving means, and the degree of interest of the user is given to each given classification category by the judging means. The setting unit determines the compression rate according to the determined degree of interest of the user, and the summarizing unit summarizes the document according to the set compression rate. Therefore, the compression rate is set according to the degree of interest of the user. Can summarize the document. Therefore, information can be efficiently transmitted to the user within a limited time.

According to the document processing apparatus of the second aspect, the determining means includes counting means for counting the number of times of access to the classification category to which the document belongs,
The setting unit sets the compression rate to be lower as the counted number of accesses is larger, so that the degree of interest of the user can be correctly determined.

According to the document processing method of the third aspect, in the document processing method for holding an input document and summarizing the held document, a classification category is given to the held document, and the given document is given. The degree of interest of the user is determined for each classified category, the compression rate is set according to the determined degree of interest of the user, and the document is summarized according to the set compression rate. Documents can be summarized according to their degree of interest.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a document processing device according to an embodiment.

FIG. 2 is a block diagram showing a hardware configuration of a document processing apparatus.

FIG. 3 is a flowchart showing a control procedure of operation of the document processing apparatus.

FIG. 4 is an explanatory diagram showing a value of a compression rate according to the number of accesses.

FIG. 5 is an explanatory diagram specifically showing the number of times of access for each classification category.

FIG. 6 is an explanatory diagram showing a classification category of each document and a compression rate thereof.

[Explanation of symbols]

 101 Document Database 102 Access Count Storage Unit 103 Compression Rate Calculation Unit 104 Input Document Storage Unit 105 Document Classification Unit 106 Document Summarization Unit 107 Summary Document Storage Unit

Front Page Continuation (72) Inventor Yuji Ikeda 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc.

Claims (3)

[Claims] 1. A document processing apparatus comprising document holding means for holding an input document and summarizing means for summarizing the held document, wherein a classification category is given to the document held by the document holding means. And a setting unit configured to set a compression rate according to the determined degree of interest of the user. The document processing apparatus, wherein the summarizing means summarizes the document according to the set compression rate. 2. The determining means comprises counting means for counting the number of accesses to the classification category to which the document belongs, and the setting means lowers the compression rate as the counted number of accesses increases. The document processing apparatus according to claim 1, wherein the document processing apparatus is set. 3. A document processing method for holding an input document and summarizing the held document, wherein a classification category is given to the held document, and a user's interest is given to each given classification category. A document processing method comprising: determining a degree, setting a compression rate according to the determined degree of interest of a user, and summarizing the document according to the set compression rate.