408 search results - page 16 / 82 » Relation Algebras for Reasoning about Time and Space |
GIS
2008
ACM
14 years 8 months ago
2008
ACM
In digital humanities projects, particularly for historical research and cultural heritage, GIS has played an increasingly important role. However, most implementations have conce...
PEPM
2011
ACM
12 years 10 months ago
2011
ACM
Navigating through tree structures is a core operation in tree processing programs. Most notably, XML processing programs intensively use XPath, the path specification language t...
SIGMOD
1995
ACM
13 years 11 months ago
1995
ACM
We study the problem of e cient maintenance of materialized views that may contain duplicates. This problem is particularly important when queries against such views involve aggre...
ICS
1999
Tsinghua U.
13 years 12 months ago
1999
Tsinghua U.
On modern computers, the performance of programs is often limited by memory latency rather than by processor cycle time. To reduce the impact of memory latency, the restructuring ...
ICALP
1998
Springer
13 years 11 months ago
1998
Springer
This paper investigates the use of a complete metric space framework for providing denotational semantics to a real-time process algebra. The study is carried out in a non-interlea...