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DCC
2007
IEEE
16 years 6 months ago
Quantization of Sparse Representations
Compressive sensing (CS) is a new signal acquisition technique for sparse and compressible signals. Rather than uniformly sampling the signal, CS computes inner products with rand...
Petros Boufounos, Richard G. Baraniuk

Publication
228views
16 years 5 months ago
Facial Expression Recognition: A Fully Integrated Approach
The most expressive way humans display emotions is through facial expressions. Humans detect and interpret faces and facial expressions in a scene with little or no effort. Still, ...
Roberto Valenti, Nicu Sebe, Theo Gevers
TEI
2009
ACM
103views Hardware» more  TEI 2009»
16 years 1 months ago
A tangible construction kit for exploring graph theory
Graphs are a versatile representation of many systems in computer science, the social sciences, and mathematics, but graph theory is not taught in schools. We present our work on ...
Eric Schweikardt, Nwanua Elumeze, Michael Eisenber...
AIED
2009
Springer
16 years 1 months ago
Evidence of Misunderstandings in Tutorial Dialogue and their Impact on Learning
We explore the frequency and impact of misunderstandings in an existing corpus of tutorial dialogues in which a student appears to get an interpretation that is not in line with wh...
Pamela W. Jordan, Diane J. Litman, Michael Lipschu...
CDC
2008
IEEE
117views Control Systems» more  CDC 2008»
16 years 28 days ago
A hopf-algebraic formula for compositions of noncommuting flows
Abstract— The Chen-Fliess series is known to be an exponential Lie series. Previously explicit formulas for the iterated integral coefficients were known only for its factorizat...
Eric Gehrig, Matthias Kawski