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TIP
2010
111views more  TIP 2010»
11 years 1 days ago
Demosaicking by Alternating Projections: Theory and Fast One-Step Implementation
Color image demosaicking is a key process in the digital imaging pipeline. In this paper, we study a classical demosaicking algorithm based on alternating projections (AP), propos...
Yue M. Lu, Mina Karzand, Martin Vetterli
MOC
2010
11 years 3 days ago
Portrait of the four regular super-exponentials to base sqrt(2)
We introduce the concept of regular super-functions at a fixed point. It is derived from the concept of regular iteration. A super-function F of h is a solution of F(z+1)=h(F(z)). ...
Dmitrii Kouznetsov, Henryk Trappmann
JMLR
2010
105views more  JMLR 2010»
11 years 3 days ago
On the Convergence Properties of Contrastive Divergence
Contrastive Divergence (CD) is a popular method for estimating the parameters of Markov Random Fields (MRFs) by rapidly approximating an intractable term in the gradient of the lo...
Ilya Sutskever, Tijmen Tieleman
CIKM
2009
Springer
11 years 3 months ago
Measuring system performance and topic discernment using generalized adaptive-weight mean
Standard approaches to evaluating and comparing information retrieval systems compute simple averages of performance statistics across individual topics to measure the overall sys...
Chung Tong Lee, Vishwa Vinay, Eduarda Mendes Rodri...
CORR
2000
Springer
97views Education» more  CORR 2000»
11 years 5 months ago
A characterization of the set of fixed points of the Quicksort transformation
The limiting distribution
James Allen Fill, Svante Janson
TON
2008
103views more  TON 2008»
11 years 5 months ago
Fixed point analysis of single cell IEEE 802.11e WLANs: uniqueness and multistability
We consider the vector fixed point equations arising out of the analysis of the saturation throughput of a single cell IEEE 802.11e (EDCA) wireless local area network with nodes th...
Venkatesh Ramaiyan, Anurag Kumar, Eitan Altman
SLOGICA
2008
110views more  SLOGICA 2008»
11 years 5 months ago
Sharvy's Lucy and Benjamin Puzzle
Sharvy's puzzle concerns a situation in which common knowledge of two parties is obtained by repeated observation each of the other, no fixed point being reached in finite ti...
Thomas Forster
IANDC
2006
113views more  IANDC 2006»
11 years 5 months ago
Automata and fixed point logic: A coalgebraic perspective
This paper generalizes existing connections between automata and logic to a coalgestraction level. Let F : Set Set be a standard functor that preserves weak pullbacks. We introdu...
Yde Venema
CORR
2010
Springer
142views Education» more  CORR 2010»
11 years 5 months ago
Graph Zeta Function in the Bethe Free Energy and Loopy Belief Propagation
We propose a new approach to the analysis of Loopy Belief Propagation (LBP) by establishing a formula that connects the Hessian of the Bethe free energy with the edge zeta functio...
Yusuke Watanabe, Kenji Fukumizu
APPML
2010
101views more  APPML 2010»
11 years 5 months ago
Positive periodic solutions for higher order functional difference equations
In this paper, we apply a fixed point theorem to obtain sufficient conditions for the existence of positive periodic solutions for two classes of higher-order functional differenc...
Weibing Wang, Xinhong Chen
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