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Data Analysis papers — page 112

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Mitigating the effects of measurement noise on Granger causality
Computing Granger causal relations among bivariate experimentally observed time series has received increasing attention over the past few years. Such causal relations, if correctly estimated, can…
Hariharan Nalatore, Govindan Rangarajan, Mingzhou DingNov 19, 2007
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Estimating Granger causality from Fourier and wavelet transforms of time series data
Experiments in many fields of science and engineering yield data in the form of time series. The Fourier and wavelet transform-based nonparametric methods are used widely to study the spectral…
Mukeshwar Dhamala, Govindan Rangarajan, Mingzhou DingNov 17, 2007
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Identification of photon-tagged jets in the ALICE experiment
The ALICE experiment at LHC will detect and identify prompt photons and light neutral-mesons with the PHOS detector and the additional EMCal electromagnetic calorimeter. Charged particles will be…
G. Conesa, H. Delagrange, J. Diaz et al.Nov 15, 2007
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Generalization of Eight Methods for Determining R in the Ideal Gas Law
The ideal gas law of physics and chemistry says that PV = nRT. This law is a statement of the relationship between four variables (P, V, n, and T) that reflect properties of a quantity of gas in a…
Donald B. MacnaughtonNov 5, 2007
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Synchronization on complex networks with different sorts of communities
In this paper, inspired by the idea that many real networks are composed by different sorts of communities, we investigate the synchronization property of oscillators on such networks. We identify…
Ming Zhao, Tao Zhou, Bing-Hong WangNov 4, 2007
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Bi-clique Communities
We present a novel method for detecting communities in bipartite networks. Based on an extension of the k-clique community detection algorithm, we demonstrate how modular structure in bipartite…
Sune Lehmann, Martin Schwartz, Lars Kai HansenOct 25, 2007
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On a Connection between Entropy, Extensive Measurement and Memoryless Characterization
We define an entropy based on a chosen governing probability distribution. If a certain kind of measurements follow such a distribution it also gives us a suitable scale to study it with. This scale…
Peter SunehagOct 23, 2007
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Centrality measures and thermodynamic formalism for complex networks
In the study of small and large networks it is customary to perform a simple random walk, where the random walker jumps from one node to one of its neighbours with uniform probability. The properties…
Jean-Charles Delvenne, Anne-Sophie LibertOct 22, 2007
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Analysis of Proton Radiography Images of Shock Melted/Damaged Tin
Tin coupons were shock damaged/melted under identical conditions with a diverging high explosive shock wave. Proton Radiography images and velocimetry data from experiments with seven different tin…
Hanna Makaruk, Nikita A. Sakhanenko, David B. Holtkamp et al.Oct 19, 2007
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Track finding in gamma conversions in CMS
A track finding algorithm has been developed for reconstruction of e+e- pairs. It combines the information of the electromagnetic calorimeter with the information provided by the Tracker. Results on…
Nancy MarinelliOct 15, 2007
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The process of coevolutionary competitive exclusion: speciation, multifractality and power-laws in correlation
Competitive exclusion, a key principle of ecology, can be generalized to understand many other complex systems. Individuals under surviving pressure tend to be different from others, and correlations…
Chen-Ping Zhu, Tao Zhou, Hui-Jie Yang et al.Oct 13, 2007
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Modularity-Maximizing Network Communities via Mathematical Programming
In many networks, it is of great interest to identify "communities", unusually densely knit groups of individuals. Such communities often shed light on the function of the networks or…
Gaurav Agarwal, David KempeOct 12, 2007
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An analysis of the abstracts presented at the annual meetings of the Society for Neuroscience from 2001 to 2006
We extracted and processed abstract data from the SFN annual meeting abstracts during the period 2001-2006, using techniques and software from natural language processing, database management, and…
J. M. Lin, J. W. Bohland, P. Andrews et al.Oct 12, 2007
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Statistical substantiation of introduction of the distributions containing lifetime as thermodynamic parameter
By means of an inequality of the information and parametrization of family of distributions of the probabilities, supposing an effective estimation, introduction of the distributions containing time…
V. V. RyazanovOct 12, 2007
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Demographic growth and the distribution of language sizes
It is argued that the present log-normal distribution of language sizes is, to a large extent, a consequence of demographic dynamics within the population of speakers of each language. A…
Damian H. ZanetteOct 8, 2007
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Information and Entropy
What is information? Is it physical? We argue that in a Bayesian theory the notion of information must be defined in terms of its effects on the beliefs of rational agents. Information is whatever…
Ariel CatichaOct 4, 2007
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Shrinkage and spectral filtering of correlation matrices: a comparison via the Kullback-Leibler distance
The problem of filtering information from large correlation matrices is of great importance in many applications. We have recently proposed the use of the Kullback-Leibler distance to measure the…
M. Tumminello, F. Lillo, R. N. MantegnaOct 2, 2007
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Wavelet transform modulus maxima based fractal correlation analysis
The wavelet transform modulus maxima (WTMM) used in the singularity analysis of one fractal function is extended to study the fractal correlation of two multifractal functions. The technique is…
D. C. Lin, A. SharifSep 28, 2007
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Community structure in directed networks
We consider the problem of finding communities or modules in directed networks. The most common approach to this problem in the previous literature has been simply to ignore edge direction and apply…
E. A. Leicht, M. E. J. NewmanSep 27, 2007
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Classification of interest rate curves using Self-Organising Maps
The present study deals with the analysis and classification of interest rate curves. Interest rate curves (IRC) are the basic financial curves in many different fields of economics and finance. They…
M. Kanevski, M. Maignan, V. Timonin et al.Sep 27, 2007
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The relativistic velocity addition law optimizes a forecast gambler's profit
We extend the projective covariant bookmaker's bets model to the forecasting gamblers case. The probability of correctness of forecasts shifts probabilities of branching. The formula for the…
Edward W. Piotrowski, Jerzy LuczkaSep 26, 2007
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A Bayesian Approach to Network Modularity
We present an efficient, principled, and interpretable technique for inferring module assignments and for identifying the optimal number of modules in a given network. We show how several existing…
Jake M. Hofman, Chris H. WigginsSep 21, 2007
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Order 1 autoregressive process of finite length
The stochastic processes of finite length defined by recurrence relations request additional relations specifying the first terms of the process analogously to the initial conditions for the…
Calin Vamos, Stefan M. Soltuz, Maria CraciunSep 19, 2007
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Extending the optimum interval method
The optimum interval method for finding an upper limit of a one-dimensionally distributed signal in the presence of an unknown background is extended to the case of high statistics. There is also…
S. YellinSep 17, 2007
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Electron/Photon identification in ATLAS and CMS
Recent studies in ATLAS and CMS experiments for the reconstruction and identification of electrons and photons using full Monte Carlo and testbeam data are reported
C. CharlotSep 16, 2007
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