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ICCV
2005
IEEE
14 years 11 months ago
Simultaneous Facial Action Tracking and Expression Recognition Using a Particle Filter
The recognition of facial gestures and expressions in image sequences is an important and challenging problem. Most of the existing methods adopt the following paradigm. First, fa...
Fadi Dornaika, Franck Davoine
WIA
2009
Springer
14 years 4 months ago
Short Regular Expressions from Finite Automata: Empirical Results
We continue our work [H. Gruber, M. Holzer: Provably shorter regular expressions from deterministic finite automata (extended ). In Proc. DLT, LNCS 5257, 2008] on the problem of ...
Hermann Gruber, Markus Holzer, Michael Tautschnig
ICALP
2001
Springer
14 years 2 months ago
Secure Games with Polynomial Expressions
Abstract. We present the first private information retrieval (PIR) scheme which is both, deterministically correct and has poly-logarithmic communication complexity. Our PIR proto...
Aggelos Kiayias, Moti Yung
FSTTCS
2010
Springer
13 years 7 months ago
Expressiveness of streaming string transducers
Streaming string transducers [1] define (partial) functions from input strings to output strings. A streaming string transducer makes a single pass through the input string and us...
Rajeev Alur, Pavol Cerný
CONEXT
2007
ACM
14 years 1 months ago
A hybrid finite automaton for practical deep packet inspection
Deterministic finite automata (DFAs) are widely used to perform regular expression matching in linear time. Several techniques have been proposed to compress DFAs in order to redu...
Michela Becchi, Patrick Crowley