771 search results - page 88 / 155 » Access Methods and Query Processing Techniques |
DKE
2008
13 years 10 months ago
2008
We study an important data analysis operator, which extracts the k most important groups from data (i.e., the k groups with the highest aggregate values). In a data warehousing co...
SIGIR
2009
ACM
14 years 4 months ago
2009
ACM
Large search engines process thousands of queries per second on billions of pages, making query processing a major factor in their operating costs. This has led to a lot of resear...
VLDB
2004
ACM
14 years 3 months ago
2004
ACM
This paper studies Data Stream Management Systems that combine real-time data streams with historical data, and hence access incoming streams and archived data simultaneously. A s...
CASCON
2008
13 years 11 months ago
2008
Today's database management systems (DBMSs) are required to handle diverse, mixed workloads and to provide differentiated levels of service to ensure that critical work takes...
SIGMOD
2003
ACM
14 years 10 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 ...