Sciweavers

KRDB
2000
64views Database» more  KRDB 2000»
13 years 6 months ago
What is View-Based Query Rewriting?
Diego Calvanese, Giuseppe De Giacomo, Maurizio Len...
KRDB
2000
69views Database» more  KRDB 2000»
13 years 6 months ago
Semistructured data schemas with expressive constraints
Andrea Calì, Diego Calvanese, Maurizio Lenz...
KRDB
1998
83views Database» more  KRDB 1998»
13 years 6 months ago
Semantic Query Optimisation and Rule Graphs
Previous researchers note the problem for semantic optimisation of database queries caused by its production of a large number of semantically equivalent alternative queries, from...
Jerome Robinson, Barry G. T. Lowden
KRDB
1998
74views Database» more  KRDB 1998»
13 years 6 months ago
Reasoning About Web-Site Structure
Buildinglarge Websites is similar in manywaysto building knowledgeand database systems. In particular, byprovidinga declarative,logical viewof a Website's data andstructure, ...
Mary F. Fernandez, Daniela Florescu, Alon Y. Levy,...
KRDB
1998
93views Database» more  KRDB 1998»
13 years 6 months ago
Intelligent Caching for Information Mediators: A KR Based Approach
We present a semantic caching approach for optimizing the performance of information mediators. A critical problem with information mediators, particularly those gathering and int...
Naveen Ashish, Craig A. Knoblock, Cyrus Shahabi
KRDB
2001
98views Database» more  KRDB 2001»
13 years 6 months ago
Semantic Lossy Compression of XML Data
Mario Cannataro, Gianluca Carelli, Andrea Pugliese...
KRDB
2001
110views Database» more  KRDB 2001»
13 years 6 months ago
Path Constraints from a Modal Logic Point of View
We analyze several classes of path constraints for semistructured data in a unified framework and prove some decidability and complexity results for these constraints by embedding...
Natasha Alechina, Stéphane Demri, Maarten d...