491 search results - page 60 / 99 » Optimizing complex queries with multiple relation instances |
CORR
2011
Springer
13 years 2 months ago
2011
Springer
Abstract. We present a categorical denotational semantics for a database mapping, based on views, in the most general framework of a database integration/exchange. Developed databa...
VLDB
2001
ACM
14 years 3 days ago
2001
ACM
Queries navigate semistructured data via path expressions, and can be accelerated using an index. Our solution encodes paths as strings, and inserts those strings into a special i...
NGITS
1999
Springer
13 years 12 months ago
1999
Springer
The integration of information from multiple databases has been an enduring subject of research for over 20 years, and many different solutions have been attempted or proposed. Mis...
CORR
2012
Springer
12 years 3 months ago
2012
Springer
In many information networks, data items – such as updates in social networks, news flowing through interconnected RSS feeds and blogs, measurements in sensor networks, route u...
RECOMB
2004
Springer
14 years 8 months ago
2004
Springer
The challenge of similarity search in massive DNA sequence databases has inspired major changes in BLAST-style alignment tools, which accelerate search by inspecting only pairs of...