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» Solving Non-deterministic Planning Problems with Pattern Dat...
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GIS
2005
ACM
14 years 6 months ago
Contraflow network reconfiguration for evacuation planning: a summary of results
Contraflow, or lane reversal, is a way of increasing outbound capacity of a real network by reversing the direction of inbound roads during evacuations. The contraflow is consider...
Sangho Kim, Shashi Shekhar
EDBT
2012
ACM
257views Database» more  EDBT 2012»
11 years 8 months ago
Indexing and mining topological patterns for drug discovery
Increased availability of large repositories of chemical compounds has created new challenges and opportunities for the application of data-mining and indexing techniques to probl...
Sayan Ranu, Ambuj K. Singh
ICDE
2012
IEEE
196views Database» more  ICDE 2012»
11 years 8 months ago
Scalable Multi-query Optimization for SPARQL
Abstract—This paper revisits the classical problem of multiquery optimization in the context of RDF/SPARQL. We show that the techniques developed for relational and semi-structur...
Wangchao Le, Anastasios Kementsietsidis, Songyun D...
CIKM
2006
Springer
13 years 9 months ago
Heuristic containment check of partial tree-pattern queries in the presence of index graphs
The wide adoption of XML has increased the interest of the database community on tree-structured data management techniques. Querying capabilities are provided through tree-patter...
Dimitri Theodoratos, Stefanos Souldatos, Theodore ...
DEXA
2005
Springer
160views Database» more  DEXA 2005»
13 years 11 months ago
Improved Sequential Pattern Mining Using an Extended Bitmap Representation
The main challenge of mining sequential patterns is the high processing cost of support counting for large amount of candidate patterns. For solving this problem, SPAM algorithm wa...
Chien-Liang Wu, Jia-Ling Koh, Pao-Ying An