Sciweavers

1890 search results - page 149 / 378
» Querying Big Data by Accessing Small Data
Sort
View
SIGMOD
1996
ACM
99views Database» more  SIGMOD 1996»
15 years 10 months ago
A Query Language for Multidimensional Arrays: Design, Implementation, and Optimization Techniques
While much recent research has focussed on extending databases beyond the traditional relational model, relatively little has been done to develop database tools for querying data...
Leonid Libkin, Rona Machlin, Limsoon Wong
ICIP
1998
IEEE
16 years 8 months ago
Semantic Visual Templates: Linking Visual Features to Semantics
The rapid growth of visual data over the last few years has lead to many schemes for retrieving such data. With content-based systems today, there exists a significant gap between...
Shih-Fu Chang, William Chen, Hari Sundaram
WWW
2010
ACM
16 years 1 months ago
Not so creepy crawler: easy crawler generation with standard xml queries
Web crawlers are increasingly used for focused tasks such as the extraction of data from Wikipedia or the analysis of social networks like last.fm. In these cases, pages are far m...
Franziska von dem Bussche, Klara A. Weiand, Benedi...
EDBT
2012
ACM
308views Database» more  EDBT 2012»
13 years 9 months ago
Transactional stream processing
Many stream processing applications require access to a multitude of streaming as well as stored data sources. Yet there is no clear semantics for correct continuous query executi...
Irina Botan, Peter M. Fischer, Donald Kossmann, Ne...
ICDT
2001
ACM
162views Database» more  ICDT 2001»
15 years 11 months ago
Algebraic Rewritings for Optimizing Regular Path Queries
Rewriting queries using views is a powerful technique that has applications in query optimization, data integration, data warehousing etc. Query rewriting in relational databases ...
Gösta Grahne, Alex Thomo