Information filtering apparatus and method for retrieving a selected article from information sources
First Claim
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1. An information filtering apparatus for providing articles to a user, comprising:
- retrieval means for retrieving a selected article from among articles, each having at least one paragraph, received from information sources according to retrieval conditions of the user, the retrieval conditions of the user including a profile in which words included in articles required for each user and a weight of the words are described, the retrieval means further includingmeans for calculating similarities between each paragraph of the articles received from the information sources and the words in the profile, andmeans for extracting a paragraph which has a largest similarity among similarities of all paragraphs;
generation means for generating an abstract of the selected article retrieved by said retrieving means according to said retrieval conditions, the abstract including the extracted paragraph; and
sending means for sending the abstract generated by said generating means to the user.
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Abstract
An information filtering apparatus for providing articles to a user includes an article extraction section that retrieves articles from articles stored in an article storage section using a user-profile. An excerpt generating section generates excerpts of the retrieved article by calculating similarities between the retrieved articles and the user-profile to generate the excerpt including the user'"'"'s necessary information. An abstract generating section combines excerpts to form an abstract. The user-profile for each user in the user-profile storage section is modified in accordance with user feedback.
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Citations
21 Claims
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1. An information filtering apparatus for providing articles to a user, comprising:
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retrieval means for retrieving a selected article from among articles, each having at least one paragraph, received from information sources according to retrieval conditions of the user, the retrieval conditions of the user including a profile in which words included in articles required for each user and a weight of the words are described, the retrieval means further including means for calculating similarities between each paragraph of the articles received from the information sources and the words in the profile, and means for extracting a paragraph which has a largest similarity among similarities of all paragraphs; generation means for generating an abstract of the selected article retrieved by said retrieving means according to said retrieval conditions, the abstract including the extracted paragraph; and sending means for sending the abstract generated by said generating means to the user. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An information filtering apparatus for providing an extract of an article to a user, comprising;
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means for storing a user profile; means for selecting an article from a plurality of articles in accordance with the user profile; means for extracting a portion of the selected article; means for sending the portion to the user; and means for receiving an evaluation of the portion from the user and for modifying the user profile in accordance with the evaluation. - View Dependent Claims (8)
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9. An information filtering apparatus for providing articles to a user, comprising:
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retrieval means for retrieving a selected article from among articles received from information sources according to retrieval conditions of each user, the retrieval conditions of the user including a profile in which words included in articles required for the user and a weight of the words are described; a plurality of generation means each for generating an excerpt of the article retrieved by said retrieval means according to said retrieval conditions and features of articles; feature extraction means for extracting a feature of the selected article retrieved by said retrieval means; selection means for selecting one of the generating means from said plurality of generation means according to the feature of the article extracted by the feature extraction means; and sending means for sending the excerpt of the article generated by the selected generation means to the user. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. An information filtering method for providing articles to a user, comprising the steps of:
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retrieving a selected article from among articles from information sources according to retrieval conditions for the user, the retrieval conditions of the user including a profile in which words included in articles required for each user and a weight of the words are described, the retrieval step further including the sub-steps of calculating similarities between each paragraph of the articles received from the information sources and the words in the profile, and extracting a paragraph which has a largest similarity among similarities of all paragraphs; generating an abstract of the selected article retrieved according to said retrieval conditions, the abstract including the extracted paragraph; and sending the abstract to the user.
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19. An information filtering method for providing articles to a user, comprising the steps of:
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retrieving a selected article from among articles from information sources according to retrieval conditions for the user, the retrieval conditions of the user including a profile in which words included in articles required for the user and a weight of the words are described; extracting a feature of the selected article; generating an abstract of the selected article according to said retrieval conditions and said feature of the article extracted in the extracting step, the abstract of the selected article including a paragraph of the selected article that is most similar to the words in the user profile; and sending the abstract to the user.
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20. A computer readable memory containing computer-readable instructions, comprising:
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instruction means for causing a computer to retrieve a selected article from among articles received from information sources according to retrieval conditions for a user, the retrieval conditions of the user including a profile in which words included in articles required for each user and a weight of the words are described, the retrieval step further including the sub-steps of calculating similarities between each paragraph of the articles received from the information sources and the words in the profile, and extracting a paragraph which has a largest similarity among similarities of all paragraphs; instruction means for causing a computer to generate an abstract of the selected article according to the retrieval condition, the abstract including the extracted paragraph; and instruction means for causing a computer to send the abstract to the user.
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21. A computer readable memory containing computer-readable instructions, comprising:
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instruction means for causing a computer to retrieve a selected article from among articles from information sources according to retrieval conditions for a user, the retrieval conditions of the user including a profile in which words included in articles required for the user and a weight of the words are described; instruction means for causing a computer to extract a feature of the selected article; instruction means for causing a computer to generate an abstract of the selected article according to the retrieval conditions and the feature of the selected article, the abstract of the selected article including a paragraph of the selected article that is most similar to the words in the user profile; and instruction means for causing a computer to send the abstract to the user.
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Specification