3268 search results - page 539 / 654 » Database Technologies for RDF |
IQIS
2004
ACM
15 years 3 months ago
2004
ACM
A virtual database system is software that provides unified access to multiple information sources. If the sources are overlapping in their contents and independently maintained,...
SIGIR
2004
ACM
15 years 3 months ago
2004
ACM
Document representation and indexing is a key problem for document analysis and processing, such as clustering, classification and retrieval. Conventionally, Latent Semantic Index...
SIGITE
2004
ACM
15 years 3 months ago
2004
ACM
In this paper, we establish the need (based on literature and anecdotal evidence) for an infrastructure for CS1 courses to visually support problem solving from the initial proble...
APWEB
2004
Springer
15 years 3 months ago
2004
Springer
In a state-of-the-art XML database, an XML query is evaluated as a sequence of structural joins in which positions of data nodes are used to perform each individual structural joi...
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Voted
CIKM
2004
Springer
15 years 3 months ago
2004
Springer
We explore join optimizations in the presence of both timebased constraints (sliding windows) and value-based constraints (punctuations). We present the first join solution named...