Document sorting method based on link relation
First Claim
1. A popularity degree calculation method for calculating a popularity degree indicating the height of a popularity of a document in a network, comprising:
- extracting the document updated or collected during a first time period; and
calculating the popularity degree for each extracted document.
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Abstract
A document sorting device comprises a popularity degree calculation unit and a popularity degree transition calculation unit. The popularity degree calculation unit calculates a popularity degree indicating the height of the popularity of each document, based on a link relation between documents in a network that are collected during the first time period. The popularity degree transition calculation unit calculates a popularity transition degree indicating both a direction and a degree of transition of the popularity degree, based on the popularity degree calculated by the popularity degree calculation unit during the second time period. In this way, a problem that the popularity degree always increases and never decreases can be solved and, simultaneously, information indicating how the popularity of a document changes as time elapses can be obtained.
71 Citations
43 Claims
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1. A popularity degree calculation method for calculating a popularity degree indicating the height of a popularity of a document in a network, comprising:
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extracting the document updated or collected during a first time period; and
calculating the popularity degree for each extracted document. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A document relation judgment method for judging a relation between documents in a network, comprising:
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extracting a link relation from a first document; and
judging whether a second document linked to by the first document is a non-text document related to contents of the first document, based on the link relation. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A service type judgment method for judging a type of a service provided by a document in a network, comprising:
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extracting a tag designating user input from the document; and
judging the type of the service provided by the document, based on the tag designating user input. - View Dependent Claims (23, 24, 25)
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26. A computer-readable storage medium that stores a program for enabling a computer to calculate a popularity degree indicating the height of a popularity of a document in a network, the process comprising:
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extracting the document updated or collected during a first time period; and
calculating the popularity degree for each of the extracted document. - View Dependent Claims (27, 28, 29, 30)
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31. A computer-readable storage medium that stores a program for enabling a computer to judge a relation between documents in a network, the process comprising:
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extracting a link relation from a first document; and
judging whether a second document linked to by the first document is non-text content related to the contents of the first document, based on the link relation.
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32. A computer-readable storage medium that stores a program for enabling a computer to judge a type of a service provided by a document in a network, the process comprising:
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extracting a tag for designating user input from the document; and
judging the type of the service provided by the document, based on the tag designating user input.
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33. A document retrieval method for searching for a document in a network, comprising:
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collecting documents from the network;
extracting documents updated or collected during a first time period;
calculating a popularity degree indicating the height of a popularity of each of the extracted documents;
retrieving the document meeting retrieval conditions from the collected documents, based on the retrieval conditions;
ranking the retrieved documents, based on the popularity degree; and
outputting information about the retrieved documents, based on the ranking result. - View Dependent Claims (34, 35, 36, 37, 38)
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39. A document retrieval apparatus for searching for a document in a network, comprising:
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a collection unit collecting documents from the network;
a popularity degree calculation unit extracting documents updated or collected during a first time period as calculation targets of a popularity degree indicating the height of a popularity and calculating the popularity degree of each of the extracted documents; and
a retrieval service unit retrieving a document meeting retrieval conditions from the collected documents, based on the retrieval conditions, ranking the retrieved documents, based on the popularity degree and outputting information about the retrieved documents, based on the ranking result.
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40. An area information document retrieval apparatus for searching for documents about an area in a network, comprising:
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a collection unit collecting documents from the network and extracting a link relation from each of the collected documents;
a popularity degree calculation unit extracting documents updated or collected during a first time period as calculation targets of a popularity degree indicating the height of a popularity and calculating the popularity degree of each of the extracted documents;
a popularity degree transition calculation unit calculating a popularity transition degree for indicating both a direction and a degree of transition of the popularity degree, based on the popularity degree calculated during a second time period;
a related non-text contents judgment unit judging whether a document linked to by each collected document is a non-text document related to the contents of each collected document, based on a link relation between the collected documents;
a service type judgment unit extracting a tag for designating user input from each of the collected documents and judging a type of a service provided by the document, based on the tag for designating user input;
a sorting unit hierarchically sorting the collected documents for each area; and
a retrieval service unit searching for the documents sorted for each of the area names, based on an area name designated by a user, ranking the retrieved documents, based on the popularity degree and outputting information about the popularity transition degree of the retrieved documents, information about the related non-text document and information about a service type provided by the retrieved documents, based on the ranking result, in addition to information about the content of the retrieved documents.
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41. A computer data signal embodied in a carrier wave, for expressing a program for enabling a computer to calculate a popularity degree indicating the height of a popularity of a document in a network, the process comprising:
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extracting documents updated or collected during a first time period; and
calculating the popularity degree of each of the extracted documents.
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42. A computer data signal embodied in a carrier wave, for expressing a program for enabling a computer to judge a relation between documents in a network, the process comprising:
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extracting a link relation from a first document; and
judging whether a second document linked to by the first document is a non-text document related to contents of the first document, based on the link relation.
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43. A computer data signal embodied in a carrier wave, for expressing a program for enabling a computer to judge a type of a service provided by a document in a network, the process comprising:
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extracting a tag for designating user input from the document; and
judging the type of the service provided by the document, based on the tag designating user input.
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Specification