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ER
2004
Springer
90views Database» more  ER 2004»
14 years 3 months ago
WUML: A Web Usage Manipulation Language for Querying Web Log Data
In this paper, we develop a novel Web Usage Manipulation Language (WUML) which is a declarative language for manipulating Web log data. We assume that a set of trails formed by use...
Qingzhao Tan, Yiping Ke, Wilfred Ng
FASE
2004
Springer
14 years 3 months ago
Actor-Centric Modeling of User Rights
Abstract. In this paper we present a novel approach for the predicative specification of user rights in the context of an object oriented use case driven development process. We e...
Ruth Breu, Gerhard Popp
HYBRID
2004
Springer
14 years 3 months ago
Bisimulation of Dynamical Systems
A general notion of bisimulation is studied for dynamical systems. An algebraic characterization of bisimulation together with an algorithm for computing the maximal bisimulation r...
A. J. van der Schaft
VLDB
2004
ACM
113views Database» more  VLDB 2004»
14 years 3 months ago
Resource Sharing in Continuous Sliding-Window Aggregates
We consider the problem of resource sharing when processing large numbers of continuous queries. We specifically address sliding-window aggregates over data streams, an important...
Arvind Arasu, Jennifer Widom
CSFW
2003
IEEE
14 years 3 months ago
Anonymity and Information Hiding in Multiagent Systems
We provide a framework for reasoning about information-hiding requirements in multiagent systems and for reasoning about anonymity in particular. Our framework employs the modal l...
Joseph Y. Halpern, Kevin R. O'Neill