2724 search results - page 204 / 545 » Optimizing Queries on Files |
129
Voted
PEPM
2010
ACM
16 years 17 days ago
2010
ACM
We show how to efficiently evaluate generic map-filter-product queries, generalizations of select-project-join (SPJ) queries in relational algebra, based on a combination of two...
139
Voted
ICDE
2006
IEEE
15 years 9 months ago
2006
IEEE
It has been well recognized that data mining is an interactive and iterative process. In order to support this process, one of the long-term goals of data mining research has been...
158
Voted
DLOG
2011
14 years 7 months ago
2011
Query answering in Ontology Based Data Access (OBDA) exploits the knowledge of an ontology’s TBox to deal with incompleteness of the ABox (or data source). Current query-answerin...
137
Voted
TPDS
2002
15 years 3 months ago
2002
Many large scale applications have significant I/O requirements as well as computational and memory requirements. Unfortunately, the limited number of I/O nodes provided in a typic...
125
Voted
WWW
2007
ACM
16 years 4 months ago
2007
ACM
This paper explores the use of social annotations to improve web search. Nowadays, many services, e.g. del.icio.us, have been developed for web users to organize and share their f...