Sciweavers

1168 search results - page 55 / 234
» Optimization strategies for complex queries
Sort
View
GECCO
2005
Springer
162views Optimization» more  GECCO 2005»
14 years 4 months ago
An autonomous explore/exploit strategy
In reinforcement learning problems it has been considered that neither exploitation nor exploration can be pursued exclusively without failing at the task. The optimal balance bet...
Alex McMahon, Dan Scott, William N. L. Browne
IJCAI
2007
14 years 5 days ago
Conjunctive Query Answering for the Description Logic SHIQ
Conjunctive queries play an important role as an expressive query language for Description Logics (DLs). Although modern DLs usually provide for transitive roles, conjunctive quer...
Birte Glimm, Ian Horrocks, Carsten Lutz, Ulrike Sa...
VLDB
2005
ACM
129views Database» more  VLDB 2005»
14 years 4 months ago
Sketching Streams Through the Net: Distributed Approximate Query Tracking
Emerging large-scale monitoring applications require continuous tracking of complex dataanalysis queries over collections of physicallydistributed streams. Effective solutions hav...
Graham Cormode, Minos N. Garofalakis
JAPLL
2010
179views more  JAPLL 2010»
13 years 9 months ago
Tractable query answering and rewriting under description logic constraints
Answering queries over an incomplete database w.r.t. a set of constraints is an important computational task with applications in fields as diverse as information integration and ...
Héctor Pérez-Urbina, Boris Motik, Ia...
GLOBE
2008
Springer
13 years 11 months ago
Query Propagation in a P2P Data Integration System in the Presence of Schema Constraints
This paper addresses the problem of data integration in a P2P environment, where each peer stores schema of its local data, mappings between the schemas, and some schema constraint...
Tadeusz Pankowski