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Evaluation of Compton scattering sequence reconstruction algorithms for a portable position sensitive radioactivity detector based on pixelated Cd(Zn)Te crystals
Compton scattering sequence algorithms radioactivity detector
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2010/11/17
We present extensive simulation studies on the performance of algorithms for the Compton sequence reconstruction used for the development of a portable spectroscopic instrument (COCAE), with the capa...
Sparse PCA: Convex Relaxations, Algorithms and Applications
Sparse PCA Algorithms Applications
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2010/11/22
Given a sample covariance matrix, we examine the problem of maximizing the variance explained by a linear combination of the input variables while constraining the number of nonzero coefficients in th...
Galois Theory of Algorithms
Galois Theory of Algorithms math
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2010/11/8
Many different programs are the implementation of the same algorithm. This makes the collection of algorithms a quotient of the collection of programs. Similarly, there are many different algorithms ...
Trajectory averaging for stochastic approximation MCMC algorithms
Trajectory averaging MCMC algorithms
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2010/11/18
The subject of stochastic approximation was founded by Robbins and Monro [Ann. Math. Statist. 22 (1951) 400--407]. After five decades of continual development, it has developed into an important area...
Optimized gyrosynchrotron algorithms and fast codes
radiation mechanisms nonthermal methods numerical Sun: flares
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2010/11/16
Gyrosynchrotron (GS) emission of charged particles spiraling in magnetic fields plays
an exceptionally important role in astrophysics. In particular, this mechanism makes a dominant
contribution to ...
Genetic algorithms and the analysis of SnIa data
Genetic algorithms analysis of SnIa data
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2010/12/21
The Genetic Algorithm is a heuristic that can be used to produce model independent solutions to an optimization problem, thus making it ideal for use in cosmology and more specifically in the analysis...
Adaptive Algorithms for Coverage Control and Space Partitioning in Mobile Robotic Networks
Adaptive Algorithms Coverage Control and Space Partitioning
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2010/11/9
We consider deployment problems where a mobile robotic network must optimize its configuration in a distributed way in order to minimize a steady-state cost function that depends on the spatial distr...
Genetic algorithms and the analysis of SnIa data
Genetic algorithms the analysis of SnIa data
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2010/11/12
The Genetic Algorithm is a heuristic that can be used to produce model independent solutions to an optimization problem, thus making it ideal for use in cosmology and more specifically in the analysis...
Golden and Alternating, fast simple O(lg n) algorithms for Fibonacci
fast simple O(lg n) algorithm math
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2010/11/24
Two very fast and simple O(lg n) algorithms for individual Fibonacci numbers are given and compared to competing algorithms. A simple O(lg n) recursion is derived that can also be applied to Lucas. A...
Quantum algorithms for solving linear differential equations
Quantum algorithms solving linear differential equations
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2010/11/5
Linear differential equations are ubiquitous in science and engineering. Quantum computers can simulate quantum systems, which are described by homogeneous linear differential equations that produce o...
Libpsht - algorithms for efficient spherical harmonic transforms
Instrumentation and Methods for Astrophysics (astro-ph.IM) Cosmology and Extragalactic Astrophysics (astro-ph.CO)
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2010/12/28
Libpsht (or "library for Performant Spherical Harmonic Transforms") is a collection of algorithms for efficient conversion between spatial-domain and spectral-domain representations of data defined on...
Fast error-tolerant quartet phylogeny algorithms
Fast error-tolerant quartet phylogeny algorithms
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2010/11/15
We present an algorithm for phylogenetic reconstruction using quartets that returns the correct topology for $n$ taxa in $O(n \log n)$ time with high probability, in a probabilistic model where a quar...
Different Adiabatic Quantum Optimization Algorithms for the NP-Complete Exact Cover and 3SAT Problems
Different Adiabatic Quantum Optimization Algorithms the NP-Complete Exact Cover 3SAT Problems
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2010/10/29
One of the most important questions in studying quantum computation is: whether a quantum computer can solve NP-complete problems more efficiently than a classical computer? In 2000, adiabatic quantu...
Entangled states considered as physical representations of classical algorithms
Entangled states physical representations classical algorithms
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2010/10/21
There are good reasons to believe that we are classical algorithms run on (effectively) classical machines. However, the fact that a physical state of a system in a universe described by a classical d...
Algorithms for Del Pezzo Surfaces of Degree 5 (Construction, Parametrization)
Algorithms Del Pezzo Surfaces of Degree 5
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2010/12/9
It is well known that every Del Pezzo surface of degree 5 defined over k is parametrizable over k. In this paper we give an efficient construction for parametrizing, as well as algorithms for construc...