Keyword assigning method and system therefor
First Claim
1. A keyword assigning method in a text processing system having a memory and a processor, comprising:
- a step performed by said processor, of extracting domain-wise keywords from text data in one of a plurality of texts, on the basis of occurrence frequencies of domain-wise word occurrence collection data stored in a memory;
a step of extracting negligible words, each occurring at a frequency of more than a specific occurrence ratio in all of said plurality of texts, by consulting said domain-wise word occurrence collection data;
a step of storing the extracted domain-wise keywords and the extracted domain-wise negligible words to said memory;
a step of inputting a text for assigning a keyword, to said text processing system;
a step of extracting a word as a keyword by way of consulting the stored keywords and the stored negligible words; and
,a step of assigning the extracted keyword to the inputted text.
1 Assignment
0 Petitions
Accused Products
Abstract
A keyword assigning system divides text data into words, stores results of the division in a table, detects numbers of occurrence times of words in each text data, registers them in a table, and obtains word occurrence frequencies in domains on the basis of the table. The system then extract keywords from the text data by domain on the basis of a resulted domain-wise word occurrence collection table, and extracts negligible word not capable of becoming keywords by domain. The system further registers the extracted domain-wise keywords and negligible words in a keyword-negligible word dictionary, looks the keywords and negligible words registered in the dictionary upon assignment of the keywords to the text data to extract words to become keywords from among the words of the text data to have the keywords assigned thereto, and assign the extracted keywords to the text data, thereby automatically making extraction and assignment of most of the keywords.
94 Citations
20 Claims
-
1. A keyword assigning method in a text processing system having a memory and a processor, comprising:
-
a step performed by said processor, of extracting domain-wise keywords from text data in one of a plurality of texts, on the basis of occurrence frequencies of domain-wise word occurrence collection data stored in a memory; a step of extracting negligible words, each occurring at a frequency of more than a specific occurrence ratio in all of said plurality of texts, by consulting said domain-wise word occurrence collection data; a step of storing the extracted domain-wise keywords and the extracted domain-wise negligible words to said memory; a step of inputting a text for assigning a keyword, to said text processing system; a step of extracting a word as a keyword by way of consulting the stored keywords and the stored negligible words; and
,a step of assigning the extracted keyword to the inputted text. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A keyword assigning method in a text processing system having a memory and a processor, comprising:
-
a step of detecting numbers of occurrence times of words in one of a plurality of text data; a step of storing the numbers of occurrence times as word occurrence frequency data; a step of obtaining occurrence frequencies of words in each of domains on the basis of the word occurrence frequency data; a step of storing the obtained occurrence frequencies as domain-wise word occurrence collection data; a step of extracting domain-wise keywords from said text data on the basis of occurrence frequencies of the stored domain-wise word occurrence collection data; a step of extracting negligible words, each occurring at a frequency of more than a specific occurrence ratio in all of said plurality of texts, by consulting said domain-wise word occurrence collection data; a step of storing the extracted domain-wise keywords and the extracted domain-wise negligible words to said memory; a step of inputting a text for assigning a keyword, to said text processing system; a step of extracting a word as a keyword by way of consulting the stored keywords and the stored negligible words in said memory; and
,a step of assigning the extracted keyword to the text data. - View Dependent Claims (12, 13, 14, 15)
-
-
16. A keyword assigning system in a text processing system having a memory and a processor, comprising:
-
means for extracting domain-wise keywords from text data in one of a plurality of texts, on the basis of occurrence frequencies of domain-wise word occurrence collection data stored in a memory; means for extracting negligible words, each occurring at a frequency of more than a specific occurrence ratio in all of said plurality of texts, by consulting said domain-wise word occurrence collection data; means for storing the extracted domain-wise keywords and the extracted domain-wise negligible words to said memory; means for inputting a text for assigning a keyword, to said text processing system; means for extracting a word as a keyword by way of consulting the stored keywords and the stored negligible words in said memory; and
,means for assigning the extracted keyword to the inputted text. - View Dependent Claims (17, 18)
-
-
19. A keyword assigning system in a text processing system having a memory and a processor, comprising:
-
means for detecting numbers of occurrence times of words in one of a plurality of text data;
means for storing the numbers of occurrence times as word occurrence frequency data;means for obtaining occurrence frequencies of words in each of domains on the basis of the word occurrence frequency data;
means for storing the obtained occurrence frequencies as domain-wise word occurrence collection data;means for extracting domain-wise keywords from said text data on the basis of occurrence frequencies of is the stored domain-wise word occurrence collection data; means for extracting negligible words, each occurring at a frequency of more than a specific occurrence ratio in all of said plurality of texts, by consulting said domain-wise word occurrence collection data; means for storing the extracted domain-wise keywords and the extracted domain-wise negligible words to said memory; means for inputting a text for assigning a keyword, to said text processing system; means for extracting a word as a keyword by way of consulting the stored keywords and the stored negligible words in said memory; and
,means for assigning the extracted keyword to the text data. - View Dependent Claims (20)
-
Specification