Using core words to extract key phrases from documents

Details Using core words to extract key phrases from documents Using core words to extract key phrases from documents

2011-02-22

2011-02-22

Ali, Mohammad (Department: 2158)

Data processing: database and file management or data structures

Database and file access

Preparing data for information retrieval

Reexamination Certificate

active

07895205

ABSTRACT:
Described is a technology, such as for use in information retrieval, by which key phrases (e.g., the phrases most relevant to a document) are extracted from a document based upon core words in that document (e.g., the words most relevant to the document). Various relevance features of each candidate word may be used to score and rank the candidate words relative to one another and thereby determine the core word or core words. The core word or words may be used to filter a document's phrases into candidate phrases, and/or used to determine core word feature values associated with each candidate phrase. The features of each candidate phrase, one or more of which may be based on the presence or absence of core words in the candidate phrase, are used to rank the candidate phrases, with the top-ranked candidate phrases being the key phrases associated with the document.

REFERENCES:
patent: 5745602 (1998-04-01), Chen et al.
patent: 5819260 (1998-10-01), Lu et al.
patent: 6098034 (2000-08-01), Razin et al.
patent: 6104990 (2000-08-01), Chaney et al.
patent: 6470307 (2002-10-01), Turney
patent: 6571240 (2003-05-01), Ho et al.
patent: 7096179 (2006-08-01), Zhu et al.
patent: 7249312 (2007-07-01), Jasper et al.
patent: 2003/0167245 (2003-09-01), Murata
patent: 2007/0067157 (2007-03-01), Kaku et al.
patent: 2007/0112764 (2007-05-01), Yih et al.
patent: 2007/0156732 (2007-07-01), Surendran et al.
Wu, et al., “Automating Keyphrase Extraction with Multi-Objective Genetic Algorithms”, Proceedings of the Hawaii International Conference on System Science, HICSS, CD ROM, 2003.University of California at Berkeley, Berkeley, CA, pp. 1-8.
Turney, “Learning to Extract Keyphrases from Text”, published as NRC/ERB-1057, 99, Feb. 17,NRC 41622. Copyright 1999, pp. 1-43.
Ganapathiraju, et al., “Relevance of Cluster size in MMR based Summarizer: A Report”, Nov. 26, 2002, pp. 1-22.
Hammouda et al., “CorePhrase: Keyphrase Extraction for Document Clustering”, pp. 1-10, 2005.

Affiliated with

Also associated with

Rating

Using core words to extract key phrases from documents does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Using core words to extract key phrases from documents, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Using core words to extract key phrases from documents will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2633008