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US 2010/0161612 A1Published application
Method of Topic Summarization and Content Anatomy
AssigneeNational Taiwan University
InventorsChien-Chin Chen, Meng-Chang Chen
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Abstract
A topic is summarized through content anatomy. The topic is summarized temporally. In an evolution graph generated through the present invention for the topic, all important events are picked up and cause-result relationships between the events are clearly shown. Hence, difficulty in understanding evolution of the topic is effectively reduced.
Claims11
A method of topic summarization and content anatomy, comprising steps of:
- (a) decomposing a plurality of documents related to a topic into a non-overlapping sequence of a plurality of blocks and describing a theme-identifying problem with said blocks through a constraint optimization method to find and express a plurality of themes to obtain a matrix comprising a plurality of eigenvectors;
- (b) analyzing changes in said eigenvectors through an R-S endpoint detection algorithm to detect a plurality of temporal events of each of said themes and obtain a plurality of summaries of said events;
- and
- (c) calculating a context similarity of each of said events to obtain a temporal closeness per two of said events, and so forth, to form an evolution graph of said topic by associating all of said events according to said temporal closeness of each of said events.
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