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Data Analysis papers — page 85

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10 Years of Object-Oriented Analysis on H1
Over a decade ago, the H1 Collaboration decided to embrace the object-oriented paradigm and completely redesign its data analysis model and data storage format. The event data model, based on the…
Paul LaycockFeb 13, 2012
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Stochastic method for in-situ damage analysis
Based on the physics of stochastic processes we present a new approach for structural health monitoring. We show that the new method allows for an in-situ analysis of the elastic features of a…
Philip Rinn, Hendrik Heißelmann, Matthias Wächter et al.Feb 1, 2012
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Solving the accuracy-diversity dilemma via directed random walks
Random walks have been successfully used to measure user or object similarities in collaborative filtering (CF) recommender systems, which is of high accuracy but low diversity. A key challenge of CF…
Jian-Guo Liu, Kerui Shi, Qiang GuoJan 30, 2012
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Improvements to the Levenberg-Marquardt algorithm for nonlinear least-squares minimization
When minimizing a nonlinear least-squares function, the Levenberg-Marquardt algorithm can suffer from a slow convergence, particularly when it must navigate a narrow canyon en route to a best fit. On…
Mark K. Transtrum, James P. SethnaJan 27, 2012
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Collective behavior of coupled nonuniform stochastic oscillators
Theoretical studies of synchronization are usually based on models of coupled phase oscillators which, when isolated, have constant angular frequency. Stochastic discrete versions of these uniform…
Vladimir R. V. Assis, Mauro CopelliJan 27, 2012
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Order Effects in Sequential Measurements of Non-Commuting Psychological Observables
Sequential measurements of non-commuting observables produce order effects that are well-known in quantum physics. But their conceptual basis, a significant measurement interaction, is relevant for…
Harald Atmanspacher, Hartmann RoemerJan 23, 2012
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Fully Bayesian Unfolding
Bayesian inference is applied directly to the problem of unfolding. The outcome is a posterior probability density for the spectrum before smearing, defined in the multi-dimensional space of all…
Georgios ChoudalakisJan 22, 2012
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The profile likelihood ratio and the look elsewhere effect in high energy physics
The experimental issue of the search for new particles of unknown mass poses the challenge of exploring a wide interval to look for the usual signatures represented by excess of events above the…
Gioacchino RanucciJan 22, 2012
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Fractal Descriptors Based on Fourier Spectrum Applied to Texture Analysis
This work proposes the development and study of a novel technique for the generation of fractal descriptors used in texture analysis. The novel descriptors are obtained from a multiscale transform…
João Batista Florindo, Odemir Martinez BrunoJan 22, 2012
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The Quantum Mechanical Oscillator as a Possible Source of 1/f Fluctuations
We investigate consecutive absorption or emission of photons of the quantum mechanical harmonic oscillator as a possible source of 1/f fluctuations. Separating the absorption and emission process, we…
Ferdinand GrueneisJan 19, 2012
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Multiscale Fractal Descriptors Applied to Nanoscale Images
This work proposes the application of fractal descriptors to the analysis of nanoscale materials under different experimental conditions. We obtain descriptors for images from the sample applying a…
João B. Florindo, Mariana S. Sikora, Ernesto C. Pereira et al.Jan 17, 2012
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1/f Noise and the Infrared Catastrophe
It is generally assumed that stochastic processes exhibiting 1/f noise are affected with the so-called infrared catastrophe. We present an intermittent stochastic process generating 1/f noise which…
Ferdinand GrueneisJan 16, 2012
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Fractal Descriptors in the Fourier Domain Applied to Color Texture Analysis
The present work proposes the development of a novel method to provide descriptors for colored texture images. The method consists in two steps. In the first, we apply a linear transform in the color…
João Batista Florindo, Odemir Martinez BrunoJan 15, 2012
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Shape analysis using fractal dimension: a curvature based approach
The present work shows a novel fractal dimension method for shape analysis. The proposed technique extracts descriptors from the shape by applying a multiscale approach to the calculus of the fractal…
André R. Backes, João B. Florindo, Odemir M. BrunoJan 15, 2012
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Closed Contour Fractal Dimension Estimation by the Fourier Transform
This work proposes a novel technique for the numerical calculus of the fractal dimension of fractal objects which can be represented as a closed contour. The proposed method maps the fractal contour…
João B. Florindo, Odemir M. BrunoJan 15, 2012
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Optimal Allocation of Interconnecting Links in Cyber-Physical Systems: Interdependence, Cascading Failures and Robustness
We consider a cyber-physical system consisting of two interacting networks, i.e., a cyber-network overlaying a physical-network. It is envisioned that these systems are more vulnerable to attacks…
Osman Yagan, Dajun Qian, Junshan Zhang et al.Jan 12, 2012
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Analytical properties of horizontal visibility graphs in the Feigenbaum scenario
Time series are proficiently converted into graphs via the horizontal visibility (HV) algorithm, which prompts interest in its capability for capturing the nature of different classes of series in a…
Bartolo Luque, Lucas Lacasa, Fernando J. Ballesteros et al.Jan 12, 2012
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Hierarchical multiresolution method to overcome the resolution limit in complex networks
The analysis of the modular structure of networks is a major challenge in complex networks theory. The validity of the modular structure obtained is essential to confront the problem of the…
Clara Granell, Sergio Gomez, Alex ArenasJan 10, 2012
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Overspill avalanching in a dense reservoir network
Sustainability of communities, agriculture, and industry is strongly dependent on an effective storage and supply of water resources. In some regions the economic growth has led to a level of water…
G. L. Mamede, N. A. M. Araújo, C. M. Schneider et al.Jan 9, 2012
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Unraveling Spurious Properties of Interaction Networks with Tailored Random Networks
We investigate interaction networks that we derive from multivariate time series with methods frequently employed in diverse scientific fields such as biology, quantitative finance, physics, earth…
Stephan Bialonski, Martin Wendler, Klaus LehnertzJan 9, 2012
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Use of Singular-Value Decomposition in Gravitational-Wave Data Analysis
Singular-value decomposition is a powerful technique that has been used in the analysis of matrices in many fields. In this paper, we summarize how it has been applied to the analysis of…
Drew KeppelJan 9, 2012
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MaxEnt and dynamical information
The MaxEnt solutions are shown to display a variety of behaviors (beyond the traditional and customary exponential one) if adequate dynamical information is inserted into the concomitant…
A. Hernando, A. Plastino, A. R. PlastinoJan 4, 2012
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Constrained Randomisation of Weighted Networks
We propose a Markov chain method to efficiently generate 'surrogate networks' that are random under the constraint of given vertex strengths. With these strength-preserving surrogates and…
Gerrit Ansmann, Klaus LehnertzJan 3, 2012
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Multi-q Analysis of Image Patterns
This paper studies the use of the Tsallis Entropy versus the classic Boltzmann-Gibbs-Shannon entropy for classifying image patterns. Given a database of 40 pattern classes, the goal is to determine…
Ricardo Fabbri, Wesley N. Gonçalves, Francisco J. P. Lopes et al.Dec 29, 2011
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Complex network classification using partially self-avoiding deterministic walks
Complex networks have attracted increasing interest from various fields of science. It has been demonstrated that each complex network model presents specific topological structures which…
Wesley Nunes Gonçalves, Alexandre Souto Martinez, Odemir Martinez BrunoDec 23, 2011
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