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1 - 10 of 58
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The nested Chinese restaurant process and Bayesian nonparametric inference of topic hierarchies
Blei D., Griffiths T., Jordan M. Journal of the ACM 57(2): 1-30, 2010. Type: Article
Topic modeling and text analysis are important tasks of any methodology for hierarchical analysis of document collections. Text categorization, text compression, and text summarization are well-known applications, but predicted structures...
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May 20 2010 |
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 Topology- and error-driven extension of scalar functions from surfaces to volumes
Patanè G., Spagnuolo M., Falcidieno B. ACM Transactions on Graphics 29(1): 1-20, 2009. Type: Article
Surface data has been recently used for volumetric computation in various fields of science, such as geographical data analysis, engineering, molecular modeling and simulation, and scientific visualization. This paper contributes to the extension ...
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Mar 25 2010 |
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On Newton-type methods for multiple roots with cubic convergence
Homeier H. Journal of Computational and Applied Mathematics 231(1): 249-254, 2009. Type: Article
Solving nonlinear equations having multiple zeros is important for both theory and applications. This paper proposes new iterative schemes applied to real or complex functions of a single real or complex variable with a zero of order...
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Feb 16 2010 |
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New characterizations of simple points in 2D, 3D, and 4D discrete spaces
Couprie M., Bertrand G. IEEE Transactions on Pattern Analysis and Machine Intelligence 31(4): 637-648, 2009. Type: Article
This paper develops theoretical contributions in discrete mathematics (digital topology) with important practical applications in image analysis (thinning and skeletonization) for pattern recognition and computer vision. The concepts of point,...
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Oct 26 2009 |
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Retrospective-approximation algorithms for the multidimensional stochastic root-finding problem
Pasupathy R., Schmeiser B. ACM Transactions on Modeling and Computer Simulation 19(2): 1-36, 2009. Type: Article
Simulation is a common technique that is used for solving many multidimensional practical problems. In this paper, simulation is used to solve the stochastic root finding problem. Pasupathy and Schmeiser propose a class of...
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Jul 6 2009 |
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Numerical linear approximation in C (Chapman & amp; Hall/CRC Numerical Analy & Scient Comp. Series)
Abdelmalek N., Malek W., Chapman&Hall/CRC, 2008. 968 pp. Type: Book, Reviews: (1 of 2)
Linear approximation (LA) is one of the most used computational tools in engineering, as well as in a wide range of scientific modeling. As the authors illustrate in chapter 1, the spectrum of applications for LA includes business,
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Dec 27 2008 |
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Parametric stability of impulsive functional differential equations
Stamova I. Journal of Dynamical and Control Systems 14(2): 235-250, 2008. Type: Article
Various processes and phenomena studied in physics, chemistry, and biology involve the study of a class of differential equations with solutions that are piecewise continuous functions. These equations are known in the literature as impulsive...
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Oct 8 2008 |
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The effect of dynamics on identifying basic emotions from synthetic and natural faces
Kätsyri J., Sams M. International Journal of Human-Computer Studies 66(4): 233-242, 2008. Type: Article
Identifying basic emotions like anger, disgust, fear, happiness, sadness, and surprise from pictures is not a new task. For more than 30 years, psychologists have tried to understand pictures of facial expressions. Nowadays, using information...
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Jul 10 2008 |
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Handbook of approximation algorithms and metaheuristics (Chapman & Hall/CRC Computer & Information Science Series)
Gonzalez T., Chapman&Hall/CRC, 2007. 1432 pp. Type: Book, Reviews: (2 of 2)
Approximation algorithms are used to find near-optimal solutions to some hard optimization problems. For “inapproximable” problems, metaheuristics methodologies are proposed. A lot of research has already been conducted, but the fight ...
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Feb 11 2008 |
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Faster convergence by means of fitness estimation
Branke J., Schmidt C. Soft Computing 9(1): 13-20, 2005. Type: Article
Improving the speed of evolutionary algorithms is an important task when such an approach is used to solve real-world problems. The authors describe a local-oriented model based on interpolation or regression to determine the individuals to be...
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Apr 12 2007 |
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