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» Quantum Algorithmic Entropy
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TOC
2010
155views Management» more  TOC 2010»
13 years 3 months ago
A New Quantum Lower Bound Method, with an Application to a Strong Direct Product Theorem for Quantum Search
Abstract: We present a new method for proving lower bounds on quantum query algorithms. The new method is an extension of the adversary method, by analyzing the eigenspace structur...
Andris Ambainis
PCM
2005
Springer
122views Multimedia» more  PCM 2005»
14 years 2 months ago
High Efficient Context-Based Variable Length Coding with Parallel Orientation
Abstract. Entropy coding is one of the most important techniques in video codec. Two main criteria to assess an entropy coder are coding efficiency and friendly realization charact...
Qiang Wang, Debin Zhao, Wen Gao, Siwei Ma
FOCS
2009
IEEE
14 years 3 months ago
Two-Message Quantum Interactive Proofs Are in PSPACE
We prove that QIP(2), the class of problems having two-message quantum interactive proof systems, is a subset of PSPACE. This relationship is obtained by means of an efficient pa...
Rahul Jain, Sarvagya Upadhyay, John Watrous
ICMCS
2006
IEEE
146views Multimedia» more  ICMCS 2006»
14 years 2 months ago
A Mutual Information based Face Clustering Algorithm for Movies
In this paper a new approach for face clustering is developed. Mutual information and joint entropy are exploited in order to create a metric for the clustering process. The way t...
Nicholas Vretos, Vassilios Solachidis, Ioannis Pit...
CORR
2011
Springer
191views Education» more  CORR 2011»
13 years 3 months ago
Picturing classical and quantum Bayesian inference
We introduce a graphical framework for Bayesian inference that is sufficiently general to accommodate not just the standard case but also recent proposals for a theory of quantum...
Bob Coecke, Robert W. Spekkens