2446 search results - page 449 / 490 » Principles of dataspace systems |
VLDB
2001
ACM
14 years 8 months ago
2001
ACM
Abstract. The optimized distance-based access methods currently available for multidimensional indexing in multimedia databases have been developed based on two major assumptions: ...
SIGMOD
2008
ACM
14 years 8 months ago
2008
ACM
Supporting ranking queries in database systems has been a popular research topic recently. However, there is a lack of study on supporting ranking queries in data warehouses where...
SIGMOD
2008
ACM
14 years 8 months ago
2008
ACM
Pattern matching over event streams is increasingly being employed in many areas including financial services, RFIDbased inventory management, click stream analysis, and electroni...
ICDE
2009
IEEE
14 years 2 months ago
2009
IEEE
Applications involving analysis of data streams have gained significant popularity and importance. Frequency counting, frequent elements and top-k queries form a class of operato...
SIGIR
2009
ACM
14 years 2 months ago
2009
ACM
We consider experiments to measure the quality of a web search algorithm based on how much total time users take to complete assigned search tasks using that algorithm. We first ...