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CIKM
2005
Springer
14 years 1 months ago
Concept-based interactive query expansion
Despite the recent advances in search quality, the fast increase in the size of the Web collection has introduced new challenges for Web ranking algorithms. In fact, there are sti...
Bruno M. Fonseca, Paulo Braz Golgher, Bruno P&ocir...
KDD
2004
ACM
137views Data Mining» more  KDD 2004»
14 years 29 days ago
Mining scale-free networks using geodesic clustering
Many real-world graphs have been shown to be scale-free— vertex degrees follow power law distributions, vertices tend to cluster, and the average length of all shortest paths is...
Andrew Y. Wu, Michael Garland, Jiawei Han
MIR
2004
ACM
153views Multimedia» more  MIR 2004»
14 years 1 months ago
Clip-based similarity measure for hierarchical video retrieval
This paper proposes a new approach and algorithm for the similarity measure of video clips. The similarity is mainly based on two bipartite graph matching algorithms: maximum matc...
Yuxin Peng, Chong-Wah Ngo
EDBT
2004
ACM
133views Database» more  EDBT 2004»
14 years 7 months ago
HOPI: An Efficient Connection Index for Complex XML Document Collections
In this paper we present HOPI, a new connection index for XML documents based on the concept of the 2?hop cover of a directed graph introduced by Cohen et al. In contrast to most o...
Ralf Schenkel, Anja Theobald, Gerhard Weikum
ICDE
2008
IEEE
182views Database» more  ICDE 2008»
14 years 9 months ago
SpaceTwist: Managing the Trade-Offs Among Location Privacy, Query Performance, and Query Accuracy in Mobile Services
In a mobile service scenario, users query a server for nearby points of interest but they may not want to disclose their locations to the service. Intuitively, location privacy may...
Man Lung Yiu, Christian S. Jensen, Xuegang Huang, ...