VLDB
2004
ACM
14 years 23 days ago
2004
ACM
Focused web crawlers have recently emerged as an alternative to the well-established web search engines. While the well-known focused crawlers retrieve relevant webpages, there ar...
VLDB
2004
ACM
14 years 23 days ago
2004
ACM
We describe ShreX, a freely-available system for shredding, loading and querying XML documents in relational databases. ShreX supports all mapping strategies proposed in the liter...
VLDB
2004
ACM
14 years 23 days ago
2004
ACM
Query containment is the most fundamental relationship between a pair of database queries: a query Q is said to be contained in a query Q if the answer for Q is always a subset of...
VLDB
2004
ACM
14 years 23 days ago
2004
ACM
We consider the problem of estimating set-expression cardinality in a distributed streaming environment where rapid update streams originating at remote sites are continually tran...
VLDB
2004
ACM
14 years 23 days ago
2004
ACM
Ontologies are increasingly being used to build applications that utilize domain-specific knowledge. This paper addresses the problem of supporting ontology-based semantic matchin...
VLDB
2004
ACM
14 years 23 days ago
2004
ACM
VLDB
2004
ACM
14 years 23 days ago
2004
ACM
Publish/subscribe systems have demonstrated the ability to scale to large numbers of users and high data rates when providing content-based data dissemination services on the Inte...
VLDB
2004
ACM
14 years 23 days ago
2004
ACM
VLDB
2004
ACM
14 years 23 days ago
2004
ACM
PIVOT and UNPIVOT, two operators on tabular data that exchange rows and columns, enable data transformations useful in data modeling, data analysis, and data presentation. They ca...
VLDB
2004
ACM
14 years 23 days ago
2004
ACM