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» A Concise Representation of Range Queries
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KR
2010
Springer
14 years 8 days ago
Status QIO: Conjunctive Query Entailment Is Decidable
Description Logics (DLs) are knowledge representation formalisms that provide, for example, the logical underpinning of the W3C OWL standards. Conjunctive queries (CQs), the stand...
Birte Glimm, Sebastian Rudolph
TIME
2000
IEEE
13 years 12 months ago
Navigating through Hierarchical Change Propagation in Spatiotemporal Queries
In spatiotemporal applications, meaningful changes vary according to object type, level of detail, and nature of application. In this paper, we introduce a dynamic classification ...
Giorgos Mountrakis, Peggy Agouris, Anthony Stefani...
ICSE
2008
IEEE-ACM
14 years 8 months ago
Answering conceptual queries with Ferret
Programmers seek to answer questions as they investigate the functioning of a software system, such as "which execution path is being taken in this case?" Programmers at...
Brian de Alwis, Gail C. Murphy
KRDB
2003
184views Database» more  KRDB 2003»
13 years 8 months ago
Some Practical Issues in Building a Hybrid Deductive Geographic Information System with a DL Component
We report about some preliminary issues from the DFG project “Description Logics and Spatial Reasoning” (“DLS”, DFG Grant NE 279/8-1), one of whose goals is to develop a p...
Michael Wessel
ICDT
2011
ACM
242views Database» more  ICDT 2011»
12 years 11 months ago
Knowledge compilation meets database theory: compiling queries to decision diagrams
The goal of Knowledge Compilation is to represent a Boolean expression in a format in which it can answer a range of online-queries in PTIME. The online-query of main interest to ...
Abhay Kumar Jha, Dan Suciu