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98
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COMPSAC
2004
IEEE
15 years 4 months ago
Spatial Data Query Support in Peer-to-Peer Systems
Recently distributed hash table (DHT) mechanisms have been proposed to manage data in very large, structured peer-to-peer (P2P) systems. DHT algorithms provide efficient exact-mat...
Roger Zimmermann, Wei-Shinn Ku, Haojun Wang
205
Voted
GIS
2005
ACM
16 years 1 months ago
Two ellipse-based pruning methods for group nearest neighbor queries
Group nearest neighbor (GNN) queries are a relatively new type of operations in spatial database applications. Different from a traditional kNN query which specifies a single quer...
Hongga Li, Hua Lu, Bo Huang, Zhiyong Huang
196
Voted
ICDE
2006
IEEE
173views Database» more  ICDE 2006»
16 years 1 months ago
Threshold Similarity Queries in Large Time Series Databases
Similarity search in time series data is an active area of research. In this paper, we introduce the novel concept of threshold-similarity queries in time series databases which r...
Alexey Pryakhin, Hans-Peter Kriegel, Johannes A&sz...
DCC
1998
IEEE
15 years 4 months ago
The Context Trees of Block Sorting Compression
Abstract. The Burrows-Wheeler transform (BWT) and block sorting compression are closely related to the context trees of PPM. The usual approach of treating BWT as merely a permutat...
N. Jesper Larsson
ICDE
2007
IEEE
122views Database» more  ICDE 2007»
16 years 1 months ago
Put a Tree Pattern in Your Algebra
To address the needs of data intensive XML applications, a number of efficient tree pattern algorithms have been proposed. Still, most XQuery compilers do not support those algori...
George A. Mihaila, Jérôme Simé...