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» Querying Semistructured Heterogeneous Information
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DEEC
2007
IEEE
14 years 4 months ago
DeepBot: a focused crawler for accessing hidden web content
The crawler engines of today cannot reach most of the information contained in the Web. A great amount of valuable information is "hidden" behind the query forms of onli...
Manuel Álvarez, Juan Raposo, Alberto Pan, F...
SIGIR
1996
ACM
14 years 2 months ago
Retrieval of Complex Objects Using a Four-Valued Logic
The aggregated structure of documents plays a key role in full-text, multimedia, and network Information Retrieval (IR). Considering aggregation provides new querying facilities a...
Thomas Rölleke, Norbert Fuhr
VLDB
2007
ACM
116views Database» more  VLDB 2007»
14 years 10 months ago
On the Correctness Criteria of Fine-Grained Access Control in Relational Databases
Databases are increasingly being used to store information covered by heterogeneous policies, which require support for access control with great flexibility. This has led to incr...
Qihua Wang, Ting Yu, Ninghui Li, Jorge Lobo, Elisa...
CVPR
2008
IEEE
15 years 2 hour ago
Rank-based distance metric learning: An application to image retrieval
We present a novel approach to learn distance metric for information retrieval. Learning distance metric from a number of queries with side information, i.e., relevance judgements...
Jung-Eun Lee, Rong Jin, Anil K. Jain
CAISE
2003
Springer
14 years 3 months ago
A Collaborative Framework for Location-Based Services
This short paper is aimed to discuss the challenges for location-based services and proposes our framework, which makes it possible to obtain information from heterogeneous sources...
Shijun Yu, Marie-Aude Aufaure, Nadine Cullot, Stef...