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GIS
2005
ACM
16 years 7 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
ICML
2007
IEEE
16 years 7 months ago
Maximum margin clustering made practical
Maximum margin clustering (MMC) is a recent large margin unsupervised learning approach that has often outperformed conventional clustering methods. Computationally, it involves n...
Kai Zhang, Ivor W. Tsang, James T. Kwok
KDD
2004
ACM
168views Data Mining» more  KDD 2004»
16 years 7 months ago
Mining, indexing, and querying historical spatiotemporal data
In many applications that track and analyze spatiotemporal data, movements obey periodic patterns; the objects follow the same routes (approximately) over regular time intervals. ...
Nikos Mamoulis, Huiping Cao, George Kollios, Mario...
LATA
2010
Springer
16 years 4 months ago
Complexity of the Satisfiability Problem for a Class of Propositional Schemata
Abstract. Iterated schemata allow to define infinite languages of propositional formulae through formulae patterns. Formally, schemata extend propositional logic with new (generali...
Vincent Aravantinos, Ricardo Caferra, Nicolas Pelt...
ICCAD
2006
IEEE
150views Hardware» more  ICCAD 2006»
16 years 3 months ago
Conjoining soft-core FPGA processors
Soft-core programmable processors on field-programmable gate arrays (FPGAs) can be custom synthesized to instantiate only those hardware units, such as multipliers and floating-po...
David Sheldon, Rakesh Kumar, Frank Vahid, Dean M. ...