Sciweavers

726 search results - page 47 / 146
» Extended Query Answering Using Integrity Rules
Sort
View
MTSR
2007
Springer
14 years 2 months ago
Creating and Querying an Integrated Ontology for Molecular and Phenotypic Cereals Data
In this paper we describe the development of an ontology of molecular and phenotypic cereals data, realized by integrating existing public web databases with the database developed...
Sonia Bergamaschi, Antonio Sala 0002
EKAW
2010
Springer
13 years 7 months ago
Scaling Up Question-Answering to Linked Data
Linked Data semantic sources, in particular DBpedia, can be used to answer many user queries. PowerAqua is an open multi-ontology Question Answering (QA) system for the Semantic We...
Vanessa Lopez, Andriy Nikolov, Marta Sabou, Victor...
SIGMOD
2001
ACM
136views Database» more  SIGMOD 2001»
14 years 8 months ago
Selectivity Estimation using Probabilistic Models
Estimating the result size of complex queries that involve selection on multiple attributes and the join of several relations is a difficult but fundamental task in database query...
Lise Getoor, Benjamin Taskar, Daphne Koller
EACL
2003
ACL Anthology
13 years 10 months ago
QUALIFIER: Question Answering by Lexical Fabric and External Resources
One of the major challenges in TRECstyle question-answering (QA) is to overcome the mismatch in the lexical representations in the query space and document space. This is particul...
Hui Yang, Tat-Seng Chua
CIKM
2010
Springer
13 years 3 months ago
Modeling betweenness for question answering
The gap between the user's information need and query is expanding due to the pervasiveness of Web search. Multimedia question answering is restricted by disjoint infrastruct...
Brandeis Marshall