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Data Analysis papers — page 91

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Principal axes for stochastic dynamics
We introduce a general procedure for directly ascertaining how many independent stochastic sources exist in a complex system modeled through a set of coupled Langevin equations of arbitrary…
V. V. Vasconcelos, F. Raischel, M. Haase et al.May 9, 2011
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CHICOM: A code of tests for comparing unweighted and weighted histograms and two weighted histograms
A self-contained Fortran-77 program for calculating test statistics to compare weighted histogram with unweighted histogram and two histograms with weighted entries is presented. The code calculates…
Nikolai GagunashviliMay 6, 2011
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Unfolding algorithms and tests using RooUnfold
The RooUnfold package provides a common framework to evaluate and use different unfolding algorithms, side-by-side. It currently provides implementations or interfaces for the Iterative Bayes,…
Tim AdyeMay 5, 2011
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Predicting catastrophes in nonlinear dynamical systems by compressive sensing
An extremely challenging problem of significant interest is to predict catastrophes in advance of their occurrences. We present a general approach to predicting catastrophes in nonlinear dynamical…
Wen-Xu Wang, Rui Yang, Ying-Cheng Lai et al.May 3, 2011
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MaxEnt power spectrum estimation using the Fourier transform for irregularly sampled data applied to a record of stellar luminosity
The principle of maximum entropy is applied to the spectral analysis of a data signal with general variance matrix and containing gaps in the record. The role of the entropic regularizer is to…
Robert W. JohnsonMay 2, 2011
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Robust Statistical Tests of Dragon-Kings beyond Power Law Distributions
We ask the question whether it is possible to diagnose the existence of "Dragon-Kings" (DK), namely anomalous observations compared to a power law background distribution of event sizes. We…
V. F. Pisarenko, D. SornetteApr 27, 2011
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Exploring Human Mobility Patterns Based on Location Information of US Flights
A range of early studies have been conducted to illustrate human mobility patterns using different tracking data, such as dollar notes, cell phones and taxicabs. Here, we explore human mobility…
Bin Jiang, Tao JiaApr 23, 2011
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Law of the leading digits and the ideological struggle for numbers
Benford's law states that the occurrence of significant digits in many data sets is not uniform but tends to follow a logarithmic distribution such that the smaller digits appear as first…
Tariq Ahmad MirApr 20, 2011
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CHIWEI: A code of goodness of fit tests for weighted and unweighted histograms
A self-contained Fortran-77 program for goodness of fit tests for histograms with weighted entries as well as with unweighted entries is presented. The code calculates test statistics for case of…
Nikolai GagunashviliApr 19, 2011
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Detection of trend changes in time series using Bayesian inference
Change points in time series are perceived as isolated singularities where two regular trends of a given signal do not match. The detection of such transitions is of fundamental interest for the…
Nadine Schütz, Matthias HolschneiderApr 18, 2011
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Hidden Variables in Bipartite Networks
We introduce and study random bipartite networks with hidden variables. Nodes in these networks are characterized by hidden variables which control the appearance of links between node pairs. We…
Maksim Kitsak, Dmitri KrioukovApr 16, 2011
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Least-squares fit to a straight line when each variable contains all equal errors
The least squares fit to a straight line, when both variables are affected by all equal uncorrelated errors, leads to very simple results for both the estimated parameters and their standard errors,…
Alessandro PetroliniApr 15, 2011
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Subgame perfect implementation: A new result
This paper concerns what will happen if quantum mechanics is concerned in subgame perfect implementation. The main result is: When additional conditions are satisfied, the traditional…
Haoyang WuApr 13, 2011
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Optimal design of measurement network for neutronic activity field reconstruction by data assimilation
Using data assimilation framework, to merge information from model and measurement, an optimal reconstruction of the neutronic activity field can be determined for a nuclear reactor core. In this…
Bertrand Bouriquet, Jean-Philippe Argaud, Romain CugnartApr 12, 2011
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A precise method for visualizing dispersive features in image plots
In order to improve the advantages and the reliability of the second derivative method in tracking the position of extrema from experimental curves, we develop a novel analysis method based on the…
P. Zhang, P. Richard, T. Qian et al.Apr 8, 2011
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Comparison of methods to extract an asymmetry parameter from data
Several methods to extract an asymmetry parameter in an event distribution function are discussed and compared in terms of statistical precision and applicability. These methods are: simple counting…
Jörg PretzApr 6, 2011
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Can intrinsic noise induce various resonant peaks?
We theoretically describe how weak signals may be efficiently transmitted throughout more than one frequency range in noisy excitable media by kind of stochastic multiresonance. This serves us here…
J. J. Torres, J. Marro, J. F. MejiasApr 6, 2011
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Direct Counting Analysis on Network Generated by Discrete Dynamics
A detail study on the In-degree Distribution (ID) of Cellular Automata is obtained by exact enumeration. The results indicate large deviation from multiscaling and classification according to ID are…
Shu-Hao Liou, Chia-Chu ChenApr 6, 2011
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Quantum Bayesian implementation
Bayesian implementation concerns decision making problems when agents have incomplete information. This paper proposes that the traditional sufficient conditions for Bayesian implementation shall be…
Haoyang WuApr 4, 2011
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Uncovering missing links with cold ends
To evaluate the performance of prediction of missing links, the known data are randomly divided into two parts, the training set and the probe set. We argue that this straightforward and standard…
Yu-Xiao Zhu, Linyuan Lü, Qian-Ming Zhang et al.Apr 3, 2011
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Comparison of the CPU and memory performance of StatPatternRecognition (SPR) and Toolkit for MultiVariate Analysis (TMVA)
High Energy Physics data sets are often characterized by a huge number of events. Therefore, it is extremely important to use statistical packages able to efficiently analyze these unprecedented…
Giulio PalomboMar 28, 2011
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Maximum-entropy moment-closure for stochastic systems on networks
Moment-closure methods are popular tools to simplify the mathematical analysis of stochastic models defined on networks, in which high dimensional joint distributions are approximated (often by some…
Tim RogersMar 25, 2011
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Discrete simulation of power law noise
A method for simulating power law noise in clocks and oscillators is presented based on modification of the spectrum of white phase noise, then Fourier transforming to the time domain. Symmetric real…
Neil AshbyMar 25, 2011
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On the correlation between air temperature and the core Earth processes: Further investigations using a continuous wavelet analysis
In a recent article by Dickey, J. O., Marcus, S.L. and O. de Viron, 2011, the authors show evidences for correlations in the multi-decadal variability of Earth's rotation rate [i.e., length of…
Stefano SelloMar 25, 2011
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Statistical Inference for Valued-Edge Networks: Generalized Exponential Random Graph Models
Across the sciences, the statistical analysis of networks is central to the production of knowledge on relational phenomena. Because of their ability to model the structural generation of networks,…
Bruce A. Desmarais, Skyler J. CranmerMar 23, 2011
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