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SIGIR
2003
ACM
15 years 10 months ago
Error analysis of difficult TREC topics
Given the experimental nature of information retrieval, progress critically depends on analyzing the errors made by existing retrieval approaches and understanding their limitatio...
Xiao Hu, Sindhura Bandhakavi, ChengXiang Zhai
SPIESR
1997
109views Database» more  SPIESR 1997»
15 years 6 months ago
FFT-Based Technique for Image-Signature Generation
In this paper we address image retrieval by similarity in multimedia databases. We discuss the generation and use of signatures computed from image content. The proposed technique...
Augusto Celentano, Vincenzo Di Lecce
ICIP
2009
IEEE
16 years 6 months ago
Localized Null Space Representation For Dynamic Updating And Downdating In Image And Video Databases
Event/object classification and recognition is an extremely challenging problem, particularly when the query or stored data undergo an affine transformation due to camera motion. ...
KDD
2007
ACM
122views Data Mining» more  KDD 2007»
16 years 5 months ago
Expertise modeling for matching papers with reviewers
An essential part of an expert-finding task, such as matching reviewers to submitted papers, is the ability to model the expertise of a person based on documents. We evaluate seve...
David M. Mimno, Andrew McCallum
CHI
2006
ACM
16 years 5 months ago
The project fragmentation problem in personal information management
The project fragmentation problem in personal information management occurs when someone who is working on a single project stores and retrieves information items relating to that...
Ofer Bergman, Ruth Beyth-Marom, Rafi Nachmias