960 search results - page 76 / 192 » Computational Semantics Of Mass Terms |
SIGMOD
2005
ACM
14 years 9 months ago
2005
ACM
A windowed query operator breaks a data stream into possibly overlapping subsets of data and computes results over each. Many stream systems can evaluate window aggregate queries....
ACMICEC
2006
ACM
14 years 3 months ago
2006
ACM
This paper formalizes the semantics of trust and studies the transitivity of trust. On the Web, people and software agents have to interact with “strangers”. This makes trust ...
JCDL
2004
ACM
14 years 2 months ago
2004
ACM
Automatic generation of semantic metadata describing spatial relations is highly desirable for image digital libraries. Relative spatial relations between objects in an image conv...
GIS
2010
ACM
13 years 7 months ago
2010
ACM
With the prevalence of GPS-embedded mobile devices, enormous amounts of mobility data are being collected in the form of trajectory - a stream of (x,y,t) points. Such trajectories...
ESORICS
2007
Springer
14 years 3 months ago
2007
Springer
Abstract. Security policies, in particular access control, are fundamental elements of computer security. We address the problem of authoring and analyzing policies in a modular wa...