Information retrieval apparatus and method

Details Information retrieval apparatus and method Information retrieval apparatus and method

2011-07-26

2011-07-26

Padmanabhan, Kavita (Department: 2161)

Data processing: database and file management or data structures

Database and file access

Post processing of search results

C707S751000

Reexamination Certificate

active

07987184

ABSTRACT:
An information retrieval apparatus includes a display unit which displays a first display menu showing a plurality of estimated meaning items and a second display menu showing a plurality of retrieval target items corresponding to the meaning items selected on the first display menu. A log storage unit stores a selection log on the first and second display menus. An estimation unit estimates a retrieval target item selection tendency from the selection log. A ranking unit ranks the plurality of retrieval target items on the basis of the selection tendency. The display unit displays a plurality of retrieval target items on the second display menu upon arranging them in accordance with ranking.

REFERENCES:
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patent: WO 03/042865 (2003-05-01), None
U.S. Appl. No. 11/849,823, filed Sep. 4, 2007, Suzuki, et al.
Search Report from corresponding EP 07018261.3 dated Jun. 3, 2009.
Agichtein, et al., “Improving Web Search Ranking by Incorporating User Behavior Information”, Proceedings of the 29thAnnual International ACM Sigir Conference on Research and Development in Information Retrieval, 2006, pp. 19-26.
Su, et al., “WhatNext: A Prediction System for Web Requests Using N-gram Sequence Models”, Web Information Systems Engineering, 2000, Proceedings of the First International Conference on Hong Kong, China; Jun. 19-21, 2000, vol. 1, pp. 214-221.
Cavnar, et al., “N-Gram-Based Text Categorization”, Proceedings Annual Symposium on Document Analysis & Information Retrieval, Jan. 1, 1998, pp. 1-14.

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