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ISCI
2007
141views more  ISCI 2007»
13 years 9 months ago
A performance comparison of distance-based query algorithms using R-trees in spatial databases
Efficient processing of distance-based queries (DBQs) is of great importance in spatial databases due to the wide area of applications that may address such queries. The most repr...
Antonio Corral, Jesús Manuel Almendros-Jim&...
SIGMOD
2009
ACM
190views Database» more  SIGMOD 2009»
14 years 10 months ago
Optimizing complex extraction programs over evolving text data
Most information extraction (IE) approaches have considered only static text corpora, over which we apply IE only once. Many real-world text corpora however are dynamic. They evol...
Fei Chen 0002, Byron J. Gao, AnHai Doan, Jun Yang ...
CORR
2010
Springer
175views Education» more  CORR 2010»
13 years 6 months ago
Improving the Performance of maxRPC
Max Restricted Path Consistency (maxRPC) is a local consistency for binary constraints that can achieve considerably stronger pruning than arc consistency. However, existing maxRPC...
Thanasis Balafoutis, Anastasia Paparrizou, Kostas ...
TASE
2008
IEEE
13 years 9 months ago
Randomized Optimal Design of Parallel Manipulators
This work intends to deal with the optimal kinematic synthesis problem of parallel manipulators under a unified framework. Observing that regular (e.g., hyper-rectangular) workspac...
Yunjiang Lou, Guanfeng Liu, Zexiang Li
IR
2007
13 years 9 months ago
Lightweight natural language text compression
Variants of Huffman codes where words are taken as the source symbols are currently the most attractive choices to compress natural language text databases. In particular, Tagged...
Nieves R. Brisaboa, Antonio Fariña, Gonzalo...