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CVPR
1997
IEEE
15 years 8 hour ago
Shape Indexing Using Approximate Nearest-Neighbour Search in High-Dimensional Spaces
Shape indexing is a way of making rapid associations between features detected in an image and object models that could have produced them. When model databases are large, the use...
Jeffrey S. Beis, David G. Lowe
CSFW
2003
IEEE
14 years 3 months ago
Understanding SPKI/SDSI Using First-Order Logic
SPKI/SDSI is a language for expressing distributed access control policy, derived from SPKI and SDSI. We provide a first-order logic (FOL) semantics for SDSI, and show that it ha...
Ninghui Li, John C. Mitchell
SIGIR
2006
ACM
14 years 4 months ago
Semantic term matching in axiomatic approaches to information retrieval
A common limitation of many retrieval models, including the recently proposed axiomatic approaches, is that retrieval scores are solely based on exact (i.e., syntactic) matching o...
Hui Fang, ChengXiang Zhai
SIGIR
2004
ACM
14 years 3 months ago
Block-based web search
Multiple-topic and varying-length of web pages are two negative factors significantly affecting the performance of web search. In this paper, we explore the use of page segmentati...
Deng Cai, Shipeng Yu, Ji-Rong Wen, Wei-Ying Ma
VISUAL
1999
Springer
14 years 2 months ago
Blobworld: A System for Region-Based Image Indexing and Retrieval
Blobworld is a system for image retrieval based on nding coherent image regions which roughly correspond to objects. Each image is automatically segmented into regions  blobs"...
Chad Carson, Megan Thomas, Serge Belongie, Joseph ...