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» Algorithms for Querying by Spatial Structure
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ICDE
2004
IEEE
117views Database» more  ICDE 2004»
14 years 9 months ago
Probe, Cluster, and Discover: Focused Extraction of QA-Pagelets from the Deep Web
In this paper, we introduce the concept of a QA-Pagelet to refer to the content region in a dynamic page that contains query matches. We present THOR, a scalable and efficient min...
James Caverlee, Ling Liu, David Buttler
EDBT
2006
ACM
112views Database» more  EDBT 2006»
14 years 8 months ago
Expressiveness and Performance of Full-Text Search Languages
We study the expressiveness and performance of full-text search languages. Our main motivation is to provide a formal basis for comparing such languages and to develop a model for...
Chavdar Botev, Sihem Amer-Yahia, Jayavel Shanmugas...
SSDBM
2009
IEEE
149views Database» more  SSDBM 2009»
14 years 2 months ago
Reverse k-Nearest Neighbor Search Based on Aggregate Point Access Methods
Abstract. We propose an original solution for the general reverse k-nearest neighbor (RkNN) search problem in Euclidean spaces. Compared to the limitations of existing methods for ...
Hans-Peter Kriegel, Peer Kröger, Matthias Ren...
ADC
2009
Springer
98views Database» more  ADC 2009»
14 years 2 months ago
Elliptic Indexing of Multidimensional Databases
In this work an R-tree variant, which uses minimum volume covering ellipsoids instead of usual minimum bounding rectangles, is presented. The most significant aspects, which dete...
Ondrej Danko, Tomás Skopal
COMSWARE
2008
IEEE
14 years 2 months ago
Community based search on power law networks
—In this paper, we have presented a novel algorithm for searching Peer-to-Peer (P2P) networks which forms power law topology. It is completely decentralized in nature and hence i...
Tathagata Das, Subrata Nandi, Niloy Ganguly