432 search results - page 7 / 87 » On Notions of Regularity for Data Languages |
PODS
2010
ACM
14 years 19 days ago
2010
ACM
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.)...
PODS
2012
ACM
11 years 10 months ago
2012
ACM
Database theory and database practice are typically the domain of computer scientists who adopt what may be termed an algorithmic perspective on their data. This perspective is ve...
COLING
2010
13 years 2 months ago
2010
The Varro toolkit is a system for identifying and counting a major class of regularity in treebanks and annotated natural language data in the form of treestructures: frequently r...
LATA
2009
Springer
14 years 2 months ago
2009
Springer
This paper proposes an alternative approach to the standard notion of rational (or regular) expression for tree languages. The main difference is that in the new notion we have on...
VLDB
2004
ACM
14 years 27 days ago
2004
ACM
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 ...