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GIS
1998
ACM
15 years 6 months ago
Natural-Language Spatial Relations Between Linear and Areal Objects: The Topology and Metric of English-Language Terms
Spatial relations are the basis for many selections users perform when they query geographic information systems (GISs). Although such query languages use natural-language-like te...
A. Rashid B. M. Shariff, Max J. Egenhofer, David M...
JCS
2002
115views more  JCS 2002»
15 years 6 months ago
Panoptis: Intrusion Detection Using a Domain-Specific Language
We describe the use of a domain-specific language (DSL) for expressing critical design values and constraints in an intrusion detection application. Through the use of this specia...
Diomidis Spinellis, Dimitris Gritzalis
DATAMINE
1999
140views more  DATAMINE 1999»
15 years 6 months ago
A Scalable Parallel Algorithm for Self-Organizing Maps with Applications to Sparse Data Mining Problems
Abstract. We describe a scalable parallel implementation of the self organizing map (SOM) suitable for datamining applications involving clustering or segmentation against large da...
Richard D. Lawrence, George S. Almasi, Holly E. Ru...
STANDARDVIEW
1998
71views more  STANDARDVIEW 1998»
15 years 6 months ago
Network externalities in software systems
Network externalities are the effects on the value of a product that can be ascribed to the presence of a network of users of such product. They play an essential role in the busi...
Giancarlo Succi, Paolo Predonzani, Andrea Valerio,...
SIAMCO
2002
78views more  SIAMCO 2002»
15 years 6 months ago
Strong Optimality for a Bang-Bang Trajectory
In this paper we give sufficient conditions for a bang-bang regular extremal to be a strong local optimum for a control problem in the Mayer form; strong means that we consider the...
Andrei A. Agrachev, Gianna Stefani, PierLuigi Zezz...