304 search results - page 36 / 61 » Selectivity Estimation of Window Queries |
SIGMOD
2003
ACM
14 years 8 months ago
2003
ACM
One of the critical deficiencies of SQL is lack of support for ndimensional array-based computations which are frequent in OLAP environments. Relational OLAP (ROLAP) applications ...
INFOCOM
2005
IEEE
14 years 1 months ago
2005
IEEE
— Estimation of network proximity among nodes is an important building block in several applications like service selection and composition, multicast tree formation, and overlay...
ILP
2003
Springer
14 years 29 days ago
2003
Springer
Query optimization is used frequently in relational database management systems. Most existing techniques are based on reordering the relational operators, where the most selective...
WWW
2007
ACM
14 years 8 months ago
2007
ACM
Search engines provide a small window to the vast repository of data they index and against which they search. They try their best to return the documents that are of relevance to...
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
Due to the structural heterogeneity of XML, queries are often interpreted approximately. This is achieved by relaxing the query and ranking the results based on their relevance to ...