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» On the Hamkins approximation property
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165
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TGC
2005
Springer
16 years 15 days ago
A Practical Formal Model for Safety Analysis in Capability-Based Systems
Abstract. We present a formal system that models programmable abstractions for access control. Composite abstractions and patterns of arbitrary complexity are modeled as a configu...
Fred Spiessens, Peter Van Roy
199
Voted
NPAR
2004
ACM
16 years 14 days ago
Rendering complexity in computer-generated pen-and-ink illustrations
We present a method to aid in the generation of pen-and-ink style renderings of complex geometry. Most illustration algorithms focus on rendering a small number of surfaces with a...
Brett Wilson, Kwan-Liu Ma
175
Voted
ISI
2004
Springer
16 years 12 days ago
Studying E-Mail Graphs for Intelligence Monitoring and Analysis in the Absence of Semantic Information
Abstract. This work describes a methodology that can be used to identify structure and communication patterns within an organization based on e-mail data. The first step of the me...
Petros Drineas, Mukkai S. Krishnamoorthy, Michael ...
190
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SPIN
2004
Springer
16 years 11 days ago
Minimization of Counterexamples in SPIN
We propose an algorithm to find a counterexample to some property in a finite state program. This algorithm is derived from SPIN’s one, but it finds a counterexample faster th...
Paul Gastin, Pierre Moro, Marc Zeitoun
ICDAR
2003
IEEE
16 years 9 days ago
String Extraction From Color Airline Coupon Image Using Statistical Approach
A novel technique is presented in this paper to extract strings in color images of both Business Settlement Plan (BSP) and non-BSP airline coupon. The essential concept is to remo...
Yi Li, Zhiyan Wang, Haizan Zeng