1581 search results - page 296 / 317 » Date Warehouse Design |
ICDT
2009
ACM
14 years 8 months ago
2009
ACM
We continue the study of approximating the number of distinct elements in a data stream of length n to within a (1? ) factor. It is known that if the stream may consist of arbitra...
WWW
2005
ACM
14 years 8 months ago
2005
ACM
Search engines are the primary gateways of information access on the Web today. Behind the scenes, search engines crawl the Web to populate a local indexed repository of Web pages...
OSDI
2008
ACM
14 years 7 months ago
2008
ACM
While modern workloads are increasingly interactive and resource-intensive (e.g., graphical user interfaces, browsers, and multimedia players), current operating systems have not ...
SIGMOD
2009
ACM
14 years 7 months ago
2009
ACM
Most information extraction (IE) approaches have considered only static text corpora, over which we apply IE only once. Many real-world text corpora however are dynamic. They evol...
SIGMOD
2007
ACM
14 years 7 months ago
2007
ACM
Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...