2228 search results - page 420 / 446 » A System for Semantic Query Optimization |
ICLP
2005
Springer
15 years 3 months ago
2005
Springer
Abstract Description Logics (DLs) are a family of class (concept) based knowledge representation formalisms. They are characterised by the use of various constructors to build comp...
CSFW
2004
IEEE
15 years 1 months ago
2004
IEEE
We study the specification of access control policy in large-scale distributed systems. We present Cassandra, a language and system for expressing policy, and the results of a sub...
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SIGIR
2012
ACM
13 years 5 days ago
2012
ACM
Finding topic experts on microblogging sites with millions of users, such as Twitter, is a hard and challenging problem. In this paper, we propose and investigate a new methodolog...
ATMOS
2008
14 years 11 months ago
2008
Abstract. The search for train connections in state-of-the-art commercial timetable information systems is based on a static schedule. Unfortunately, public transportation systems ...
SIGMOD
2010
ACM
14 years 10 months ago
2010
ACM
Rising energy costs in large data centers are driving an agenda for energy-efficient computing. In this paper, we focus on the role of database software in affecting, and, ultimat...