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ICDT
2007
ACM
106views Database» more  ICDT 2007»
15 years 7 months ago
Trajectory Databases: Data Models, Uncertainty and Complete Query Languages
Moving objects produce trajectories. We describe a data model for trajectories and trajectory samples and an efficient way of modeling uncertainty via beads for trajectory samples....
Bart Kuijpers, Walied Othman
IIWAS
2004
15 years 2 months ago
Ontology-Based Query Refinement for Multimedia Meta Objects
Abstract: To enable efficient access to multimedia content, the media data has to be augmented by semantic metadata and functionality. The semantic representation has to be integra...
Sonja Zillner, Werner Winiwarter
LOPSTR
2004
Springer
15 years 6 months ago
Proving Termination for Logic Programs by the Query-Mapping Pairs Approach
This paper describes a method for proving termination of to logic programs based on abstract interpretation. The method ry-mapping pairs to abstract the relation between calls in t...
Naomi Lindenstrauss, Yehoshua Sagiv, Alexander Ser...
EDBTW
2006
Springer
15 years 5 months ago
A Calculus for Propagating Semantic Annotations Through Scientific Workflow Queries
Scientific workflows facilitate automation, reuse, and reproducibility of scientific data management and analysis tasks. Scientific workflows are often modeled as dataflow networks...
Shawn Bowers, Bertram Ludäscher
CICLING
2005
Springer
15 years 7 months ago
Learning the Query Generation Patterns
Abstract. With the current method of query formation, a Question Answering system retrieves a set of documents that are similar to a question, while what is mostly required is a se...
Marcin Skowron, Kenji Araki