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IJCGA
2007
55views more  IJCGA 2007»
15 years 6 months ago
Parabola Separation Queries and their Application to Stone Throwing
Given two sets A and B of m non-intersecting line segments in the plane, we show how to compute in O(m log m) time a data structure that uses O(m) space and allows to answer the fo...
Otfried Cheong, Hazel Everett, Hyo-Sil Kim, Sylvai...
CUZA
2002
132views more  CUZA 2002»
15 years 6 months ago
A Process Algebra for Predictible Control Systems
This paper presents Process Algebra for Predictible Control Systems (PAPCS) as a model for specifying and analysis of concurrent, time and resource dependent, distributed control s...
Nicolae Marian
IGPL
2002
91views more  IGPL 2002»
15 years 6 months ago
The Unrestricted Combination of Temporal Logic Systems
This paper generalises and complements the work on combining temporal logics started by Finger and Gabbay [11, 10]. We present proofs of transference of soundness, completeness an...
Marcelo Finger, M. Angela Weiss
ICML
2006
IEEE
16 years 7 months ago
Dynamic topic models
A family of probabilistic time series models is developed to analyze the time evolution of topics in large document collections. The approach is to use state space models on the n...
David M. Blei, John D. Lafferty
GLOBECOM
2006
IEEE
16 years 19 days ago
Defending against Instant Messaging Worms
— Due to the real time nature and buddy list presence information of Instant Messaging (IM) systems worms can spread over IM networks rapidly, causing severe damages, however, it...
Zhijun Liu, Guoqiang Shu, Na Li, David Lee