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FSTTCS
2004
Springer
14 years 27 days ago
Learning Languages from Positive Data and a Finite Number of Queries
A computational model for learning languages in the limit from full positive data and a bounded number of queries to the teacher (oracle) is introduced and explored. Equivalence, ...
Sanjay Jain, Efim B. Kinber
PODS
2010
ACM
213views Database» more  PODS 2010»
14 years 17 days ago
Expressive languages for path queries over graph-structured data
For many problems arising in the setting of graph querying (such as finding semantic associations in RDF graphs, exact and approximate pattern matching, sequence alignment, etc.)...
Pablo Barceló, Carlos A. Hurtado, Leonid Li...
VLDB
2004
ACM
99views Database» more  VLDB 2004»
14 years 25 days ago
Query Languages and Data Models for Database Sequences and Data Streams
We study the fundamental limitations of relational algebra (RA) and SQL in supporting sequence and stream queries, and present effective query language and data model enrichments ...
Yan-Nei Law, Haixun Wang, Carlo Zaniolo
EUSFLAT
2003
131views Fuzzy Logic» more  EUSFLAT 2003»
13 years 9 months ago
Flexible querying via intuitionistic fuzzy sets
The traditional query languages used in database management systems require precise and unambiguous queries only. Fuzzy querying were introduced to relax this rigidity and allow t...
Przemyslaw Grzegorzewski, Edyta Mrówka
DELOS
2000
13 years 8 months ago
Query Subscription in an XML Webhouse
We consider a query subscription system that can provide users with information about web changes that interest them. We present a query subscription language and a system that co...
Benjamin Nguyen, Serge Abiteboul, Gregory Cobena, ...