196 search results - page 30 / 40 » Group-by skyline query processing in relational engines |
EDBT
2009
ACM
14 years 2 months ago
2009
ACM
Data stream management systems usually have to process many long-running queries that are active at the same time. Multiple queries can be evaluated more efficiently together tha...
DOCENG
2004
ACM
13 years 11 months ago
2004
ACM
: XML is unique in its very broad acceptance throughout both the document engineering and data processing community. This creates a unique opportunity for unifying the traditionall...
ICDE
2003
IEEE
14 years 9 months ago
2003
IEEE
Expressing complex OLAP queries using group-by, aggregation, and joins can be extremely difficult. As a result of this, many alternate ways of expressing such queries have been de...
IWPC
2003
IEEE
14 years 27 days ago
2003
IEEE
Syntactic and semantic analysis are established topics in the area of compiler construction. Their application to the understanding and restructuring of large software systems rev...
WWW
2006
ACM
14 years 8 months ago
2006
ACM
Determining the similarity of short text snippets, such as search queries, works poorly with traditional document similarity measures (e.g., cosine), since there are often few, if...