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» Supporting Queries with Imprecise Constraints
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SEMWEB
2010
Springer
13 years 5 months ago
Adding Integrity Constraints to the Semantic Web for Instance Data Evaluation
This paper presents our work on supporting evaluation of integrity constraint issues in semantic web instance data. We propose an alternative semantics for the ontology language, i...
Jiao Tao
RIVF
2003
13 years 9 months ago
Query Brokers for Distributed and Flexible Query Evaluation
Abstract— This paper presents our work on supporting flexible query evaluation over large distributed, heterogeneous, and autonomous sources. Flexibility means that the query ev...
Tuyet-Trinh Vu, Christine Collet
ECWEB
2004
Springer
97views ECommerce» more  ECWEB 2004»
14 years 27 days ago
Supporting User Query Relaxation in a Recommender System
This paper presents a new technology for supporting flexible query management in recommender systems. It is aimed at guiding a user in refining her query when it fails to return ...
Nader Mirzadeh, Francesco Ricci, Mukesh Bansal
WWW
2007
ACM
14 years 8 months ago
SPARQ2L: towards support for subgraph extraction queries in rdf databases
Many applications in analytical domains often have the need to "connect the dots" i.e., query about the structure of data. In bioinformatics for example, it is typical t...
Kemafor Anyanwu, Angela Maduko, Amit P. Sheth
PVLDB
2010
128views more  PVLDB 2010»
13 years 6 months ago
Update Rewriting and Integrity Constraint Maintenance in a Schema Evolution Support System: PRISM++
Supporting legacy applications when the database schema evolves represents a long-standing challenge of practical and theoretical importance. Recent work has produced algorithms a...
Carlo Curino, Hyun Jin Moon, Alin Deutsch, Carlo Z...