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» Knowledge updates: Semantics and complexity issues
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PODS
2002
ACM
98views Database» more  PODS 2002»
14 years 8 months ago
On Propagation of Deletions and Annotations Through Views
We study two classes of view update problems in relational databases. We are given a source database S, a monotone query Q, and the view Q(S) generated by the query. The first pro...
Peter Buneman, Sanjeev Khanna, Wang Chiew Tan
DLOG
2004
13 years 10 months ago
A Uniform Tableaux-Based Approach to Concept Abduction and Contraction in ALN
We present algorithms based on truth-prefixed tableaux to solve both Concept Abduction and Contraction in ALN DL. We also analyze the computational complexity of the problems, sho...
Simona Colucci, Tommaso Di Noia, Eugenio Di Sciasc...
JCDL
2003
ACM
231views Education» more  JCDL 2003»
14 years 1 months ago
Acquisition, Representation, Query and Analysis of Spatial Data: A Demonstration 3D Digital Library
The increasing power of techniques to model complex geometry and extract meaning from 3D information create complex data that must be described, stored, and displayed to be useful...
Jeremy Rowe, Anshuman Razdan, Arleyn Simon
CCECE
2006
IEEE
14 years 2 months ago
A Dynamic Associative E-Learning Model based on a Spreading Activation Network
Presenting information to an e-learning environment is a challenge, mostly, because ofthe hypertextlhypermedia nature and the richness ofthe context and information provides. This...
Phongchai Nilas, Nilamit Nilas, Somsak Mitatha
PLDI
2006
ACM
14 years 2 months ago
Context-sensitive domain-independent algorithm composition and selection
Progressing beyond the productivity of present-day languages appears to require using domain-specific knowledge. Domain-specific languages and libraries (DSLs) proliferate, but ...
Troy A. Johnson, Rudolf Eigenmann