Search results for "M-estimators"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
104	Sholom M. Weiss	Small Sample Error Rate Estimation for k-NN Classifiers.	IEEE Trans. Pattern Anal. Mach. Intell.	1991	DBLP DOI BibTeX RDF	k-NN classifiers, bootstrap estimators, cross-validation estimators, error-rate estimators, pattern recognition, pattern recognition, statistics, Monte Carlo methods, Monte Carlo simulations, estimation theory, nearest-neighbor classifiers, leaving-one-out
81	Glencora Borradaile, Pascal Van Hentenryck	Safe and tight linear estimators for global optimization.	Math. Program.	2005	DBLP DOI BibTeX RDF
74	Björn Blohsfeld, Dieter Korus, Bernhard Seeger	A Comparison of Selectivity Estimators for Range Queries on Metric Attributes.	SIGMOD Conference	1999	DBLP DOI BibTeX RDF
68	Charles V. Stewart	Expected Performance of Robust Estimators Near Discontinuities.	ICCV	1995	DBLP DOI BibTeX RDF	expected performance, polynomial surface patch extraction, range discontinuity, truly random bad data, random outliers, coherently structured points, MINPRAN, pseudo outlier breakdown, pseudo outlier bias, feature extraction, computational geometry, Hough transforms, Hough transforms, robust estimators, estimation theory, RANSAC, M estimators, least median of squares
67	Fatemah A. Alqallaf, Kjell P. Konis, R. Douglas Martin, Ruben H. Zamar	Scalable robust covariance and correlation estimates for data mining.	KDD	2002	DBLP DOI BibTeX RDF	data mining, outliers, robust estimators, robust statistics, scalable algorithm
67	Philipos C. Loizou	Speech Enhancement Based on Perceptually Motivated Bayesian Estimators of the Magnitude Spectrum.	IEEE Trans. Speech Audio Process.	2005	DBLP DOI BibTeX RDF
64	Wenbin Liu, Ningning Yan	Some a Posteriori Error Estimators for p-Laplacian Based on Residual Estimation or Gradient Recovery.	J. Sci. Comput.	2001	DBLP DOI BibTeX RDF	p-Laplacian, quasi-norm, a posteriori error estimators, superconvergence, finite element approximation, gradient recovery
53	James M. Calvin	Simulation output analysis using integrated paths II: Low bias estimators.	ACM Trans. Model. Comput. Simul.	2009	DBLP DOI BibTeX RDF	Variance reduction, efficiency improvement
53	Sheetal Kalyani, Krishnamurthy Giridhar	Mitigation of Error Propagation in Decision Directed OFDM Channel Tracking Using Generalized M Estimators.	IEEE Trans. Signal Process.	2007	DBLP DOI BibTeX RDF
50	Jos De Brabanter, Kristiaan Pelckmans, Johan A. K. Suykens, Joos Vandewalle	Robust Cross-Validation Score Function for Non-linear Function Estimation.	ICANN	2002	DBLP DOI BibTeX RDF	Weighted LS-SVM, Robust Cross-Validation Score function, Breakdown point, M-estimators and L-estimators, Influence functions
50	Scott A. Vander Wiel, Lawrence G. Votta	Assessing Software Designs Using Capture-Recapture Methods.	IEEE Trans. Software Eng.	1993	DBLP DOI BibTeX RDF	capture-recapture methods, wildlife population estimation, broken assumptions, jackknife estimators, software quality, software reliability, statistical analysis, software designs, maximum likelihood estimators, maximum likelihood estimation, Monte Carlo simulation, software quality assurance, statistical estimation, design reviews
50	Minghua Hsieh, Donald L. Iglehart, Peter W. Glynn	Empirical performance of bias-reducing estimators for regenerative steady-state simulations.	ACM Trans. Model. Comput. Simul.	2004	DBLP DOI BibTeX RDF	Bias-reducing estimators, steady-state estimation, simulation, regeneration
50	Martin Petzoldt	A Posteriori Error Estimators for Elliptic Equations with Discontinuous Coefficients.	Adv. Comput. Math.	2002	DBLP DOI BibTeX RDF	interface problems, transmission problems, robustness, singularities, a posteriori error estimators, discontinuous coefficients, elliptic equations
50	Wenbin Liu, Ningning Yan	A Posteriori Error Estimators for a Class of Variational Inequalities.	J. Sci. Comput.	2000	DBLP DOI BibTeX RDF	obstacle problems, a posteriori error estimators, variational inequalities, finite element approximation
49	Mario Tanda	Blind symbol-timing and frequency-offset estimation in OFDM systems with real data symbols.	IEEE Trans. Commun.	2004	DBLP DOI BibTeX RDF
49	Dmitri Loguinov, Hayder Radha	Retransmission schemes for streaming internet multimedia: evaluation model and performance analysis.	Comput. Commun. Rev.	2002	DBLP DOI BibTeX RDF	TCP/IP
46	Katti Faceli, André Carlos Ponce de Leon Ferreira de Carvalho, Solange Oliveira Rezende	Combining Intelligent Techniques for Sensor Fusion.	Appl. Intell.	2004	DBLP DOI BibTeX RDF	combining estimators, machine learning, robotics, sensor fusion
46	Serdar Sezginer, Pascal Bianchi	Asymptotically Efficient Reduced Complexity Frequency Offset and Channel Estimators for Uplink MIMO-OFDMA Systems.	IEEE Trans. Signal Process.	2008	DBLP DOI BibTeX RDF
46	Davide Dardari, Chia-Chin Chong, Moe Z. Win	Threshold-Based Time-of-Arrival Estimators in UWB Dense Multipath Channels.	IEEE Trans. Commun.	2008	DBLP DOI BibTeX RDF
46	Richard C. Hendriks, Jan S. Erkelens, Richard Heusdens	Comparison of complex-DFT estimators with and without the independence assumption of real and imaginary parts.	ICASSP	2008	DBLP DOI BibTeX RDF
46	Richard C. Hendriks, Rainer Martin 0001	MAP Estimators for Speech Enhancement Under Normal and Rayleigh Inverse Gaussian Distributions.	IEEE Trans. Speech Audio Process.	2007	DBLP DOI BibTeX RDF
46	Christoph Heinz, Bernhard Seeger	Adaptive Wavelet Density Estimators over Data Streams.	SSDBM	2007	DBLP DOI BibTeX RDF
46	John H. L. Hansen, V. Radhakrishnan, Kathryn Hoberg Arehart	Speech Enhancement Based on Generalized Minimum Mean Square Error Estimators and Masking Properties of the Auditory System.	IEEE Trans. Speech Audio Process.	2006	DBLP DOI BibTeX RDF
46	Yunfei Chen 0001, Norman C. Beaulieu	Estimators Using Noisy Channel Samples for Fading Distribution Parameters.	IEEE Trans. Commun.	2005	DBLP DOI BibTeX RDF
46	Jeffrey A. Fessler	Mean and variance of implicitly defined biased estimators (such as penalized maximum likelihood): applications to tomography.	IEEE Trans. Image Process.	1996	DBLP DOI BibTeX RDF
43	Mateusz Kobos, Jacek Mandziuk	Classification Based on Combination of Kernel Density Estimators.	ICANN (2)	2009	DBLP DOI BibTeX RDF	density estimators combination, classification, kernel density estimation
43	Hernan P. Awad, Peter W. Glynn	On the theoretical comparison of low-bias steady-state estimators.	ACM Trans. Model. Comput. Simul.	2007	DBLP DOI BibTeX RDF	Low-bias estimators, mean-square error expansion, steady-state simulation
42	Jan S. Erkelens, Richard C. Hendriks, Richard Heusdens, Jesper Jensen 0001	Minimum Mean-Square Error Estimation of Discrete Fourier Coefficients With Generalized Gamma Priors.	IEEE Trans. Speech Audio Process.	2007	DBLP DOI BibTeX RDF
42	Yan Wang 0009, Erchin Serpedin, Philippe Ciblat	Blind feedforward cyclostationarity-based timing estimation for linear modulations.	IEEE Trans. Wirel. Commun.	2004	DBLP DOI BibTeX RDF
42	James M. Calvin, Marvin K. Nakayama	Output analysis: a comparison of output-analysis methods for simulations of processes with multiple regeneration sequences.	WSC	2002	DBLP DOI BibTeX RDF
39	Shuyu Sun 0001, Mary F. Wheeler	L2(H1 Norm A PosterioriError Estimation for Discontinuous Galerkin Approximations of Reactive Transport Problems.	J. Sci. Comput.	2005	DBLP DOI BibTeX RDF	OBB-DG, NIPG, IIPG, SIPG, a posteriori error estimators, Discontinuous Galerkin methods, hp adaptivity
39	Yan Li 0007, Hua Fu, Pooi Yuen Kam	Improved, Approximate, Time-Domain ML Estimators of Chirp Signal Parameters and Their Performance Analysis.	IEEE Trans. Signal Process.	2009	DBLP DOI BibTeX RDF
39	Francesc Aulí Llinàs, Michael W. Marcellin, Joan Serra-Sagristà	Highly Accurate Distortion Estimation for JPEG2000 through PDF-Based Estimators.	DCC	2009	DBLP DOI BibTeX RDF
39	Kozo Yamada, Hirohito Sakurai, Hideyuki Imai, Yoshiharu Sato	Effects of Kurtosis for the Error Rate Estimators Using Resampling Methods in Two Class Discrimination.	KES (2)	2009	DBLP DOI BibTeX RDF	actual error rate, smoothed bootstrap, robustness, bootstrap, bias, standard deviation, leave-one-out
39	Ping Li 0001	Computationally Efficient Estimators for Dimension Reductions UsingStable Random Projections.	ICDM	2008	DBLP DOI BibTeX RDF
39	Bertrand Kerautret, Jacques-Olivier Lachaud, Benoît Naegel	Comparison of Discrete Curvature Estimators and Application to Corner Detection.	ISVC (1)	2008	DBLP DOI BibTeX RDF
39	Ammar M. Sarhan, Frank M. Guess, John S. Usher	Estimators for Reliability Measures in Geometric Distribution Model Using Dependent Masked System Life Test Data.	IEEE Trans. Reliab.	2007	DBLP DOI BibTeX RDF
39	Michael Cole, Kamran Kiasaleh	Signal Intensity Estimators for Free-Space Optical Communication With Array Detectors.	IEEE Trans. Commun.	2007	DBLP DOI BibTeX RDF
39	Michael Cole, Kamran Kiasaleh	Signal Intensity Estimators for Free-Space Optical Communication With Array Detectors.	IEEE Trans. Commun.	2007	DBLP DOI BibTeX RDF
39	Ruoming Jin, Leonid Glimcher, Chris Jermaine, Gagan Agrawal	New Sampling-Based Estimators for OLAP Queries.	ICDE	2006	DBLP DOI BibTeX RDF
39	James M. Calvin	Experimental evaluation of integrated path estimators.	WSC	2006	DBLP DOI BibTeX RDF
39	Qing Wang, Chuan-Hua Zhou, Bao-Hua Zhao	Discriminatively Learning Selective Averaged One-Dependence Estimators Based on Cross-Entropy Method.	CIS	2006	DBLP DOI BibTeX RDF
39	Cihan Tepedelenlioglu, Ping Gao 0001	Estimators of the Nakagami-m parameter and performance analysis.	IEEE Trans. Wirel. Commun.	2005	DBLP DOI BibTeX RDF
39	Jerzy Jelonkiewicz, Andrzej Przybyl	Influence of the Training Set Selection on the Performance of the Neural Network State Variables Estimators in the Induction Motor.	ICAISC	2004	DBLP DOI BibTeX RDF
39	Victor B. Schneider	Approximations for the Halstead software science software error rate and project effort estimators.	ACM SIGPLAN Notices	1988	DBLP DOI BibTeX RDF
36	Seung-Hoe Choi, James J. Buckley	Fuzzy regression using least absolute deviation estimators.	Soft Comput.	2008	DBLP DOI BibTeX RDF	Fuzzy regression, Least absolute deviation estimators, Fuzzy outliers
36	Doohyung Lee, Chihoon Lee, Jahwan Koo, Jin-Wook Chung	Correlation Analysis of Available Bandwidth Estimators for Mobile HCI.	HCI (8)	2007	DBLP DOI BibTeX RDF	Available Bandwidth Estimators, TCP schemes, wireless, Mobile HCI
36	Jack Koplowitz, Alfred M. Bruckstein	Design of Perimeter Estimators for Digitized Planar Shapes.	IEEE Trans. Pattern Anal. Mach. Intell.	1989	DBLP DOI BibTeX RDF	perimeter estimators, digitized planar shapes, arbitrary contours, continuous curvature, pattern recognition, design, computer vision, computer vision, optimisation, parameter estimation, computerised picture processing, computerised picture processing, computerised pattern recognition, shapes, estimation error
36	Lin Zhang, Theofanis Strouboulis, Ivo Babuska	A Posteriori Estimators for the FEM: Analysis of the Robustness of the Estimators for the Poisson Equation.	Adv. Comput. Math.	2001	DBLP DOI BibTeX RDF	finite element method, a posteriori error estimator
35	Christian Oberli	ML-based Tracking Algorithms for MIMO-OFDM.	IEEE Trans. Wirel. Commun.	2007	DBLP DOI BibTeX RDF
35	Xavier Wautelet, Cédric Herzet, Antoine Dejonghe, Jérôme Louveaux, Luc Vandendorpe	Comparison of EM-Based Algorithms for MIMO Channel Estimation.	IEEE Trans. Commun.	2007	DBLP DOI BibTeX RDF
35	Jesper Jensen 0001, Richard Heusdens	Improved Subspace-Based Single-Channel Speech Enhancement Using Generalized Super-Gaussian Priors.	IEEE Trans. Speech Audio Process.	2007	DBLP DOI BibTeX RDF
35	Rensheng Wang, Hongbin Li 0001	Decorrelating multiuser code-timing estimation for long-code CDMA with bandlimited chip waveforms.	IEEE Trans. Signal Process.	2005	DBLP DOI BibTeX RDF
35	M. Armon Rahgozar, Jan P. Allebach	Motion estimation based on time-sequentially sampled imagery.	IEEE Trans. Image Process.	1995	DBLP DOI BibTeX RDF
32	Fabien Navarro	Estimateurs adaptatifs avec parcimonie structurée. (Adaptive estimators with structured sparsityAdaptive estimators with structured sparsity : Adaptive estimators with structured sparsity).		2013	RDF
32	J. Dinesh Peter, V. K. Govindan, Abraham T. Mathew	Acquainted Non-convexity Multiresolution Based Optimization for Affine Parameter Estimation in Image Registration.	ISICA	2008	DBLP DOI BibTeX RDF	Affine parameter estimation, Robust M-estimators, Motion estimation, Image Registration, outliers
32	Michael D. DeVore	Estimates of Error Probability for Complex Gaussian Channels with Generalized Likelihood Ratio Detection.	IEEE Trans. Pattern Anal. Mach. Intell.	2005	DBLP DOI BibTeX RDF	Complex Gaussian channels, probability of error, model inaccuracy, moment estimators, Johnson's systems of distributions
32	David Hasler, Luciano Sbaiz, Sabine Süsstrunk, Martin Vetterli	Outlier Modeling in Image Matching.	IEEE Trans. Pattern Anal. Mach. Intell.	2003	DBLP DOI BibTeX RDF	Outlier model, robust pose estimation, mixture model, M -estimators, outlier rejection
32	Ronald H. W. Hoppe, Svetozara Petrova, Yuri V. Vassilevski	Adaptive Grid Refinement for Computation of the Homogenized Elasticity Tensor.	LSSC	2003	DBLP DOI BibTeX RDF	biomorphic microcellular ceramics, homogenization technique, a posteriori error estimators, shape optimization, adaptive refinement
32	Dharma Thiruvaiyaru, Ishwar V. Basawa	Empirical Bayes estimation for queueing systems and networks.	Queueing Syst. Theory Appl.	1992	DBLP DOI BibTeX RDF	Bayes procedures, empirical Bayes estimators, Markovian queues, networks of queues, maximum likelihood estimation
32	Eric Plourde, Benoît Champagne 0001	Auditory-Based Spectral Amplitude Estimators for Speech Enhancement.	IEEE Trans. Speech Audio Process.	2008	DBLP DOI BibTeX RDF
32	Michael Jachan, Gerald Matz, Franz Hlawatsch	Time-Frequency ARMA Models and Parameter Estimators for Underspread Nonstationary Random Processes.	IEEE Trans. Signal Process.	2007	DBLP DOI BibTeX RDF
32	Simon Hermann, Reinhard Klette	A Comparative Study on 2D Curvature Estimators.	ICCTA	2007	DBLP DOI BibTeX RDF
32	Christopher M. Healey, David Goldsman, Seong-Hee Kim	Ranking and selection techniques with overlapping variance estimators.	WSC	2007	DBLP DOI BibTeX RDF
32	Claudia Antonini, Christos Alexopoulos, David Goldsman, James R. Wilson	Folded standardized time series area variance estimators for simulation.	WSC	2007	DBLP DOI BibTeX RDF
32	M. Dylan Tisdall, M. Stella Atkins, Richard A. Lockhart	Maximum Likelihood Estimators in Magnetic Resonance Imaging.	IPMI	2007	DBLP DOI BibTeX RDF
32	Ping Li 0001, Trevor Hastie, Kenneth Ward Church	Nonlinear Estimators and Tail Bounds for Dimension Reduction in l 1 Using Cauchy Random Projections.	COLT	2007	DBLP DOI BibTeX RDF
32	Reza Hoseinnezhad, Alireza Bab-Hadiashar	Fast Estimation of Epipolar Geometry Using High Breakdown M-estimators.	DICTA	2007	DBLP DOI BibTeX RDF
32	Edith Cohen, Nick G. Duffield, Haim Kaplan, Carsten Lund, Mikkel Thorup	Algorithms and estimators for accurate summarization of internet traffic.	Internet Measurement Conference	2007	DBLP DOI BibTeX RDF	ip flows, subpopulation queries, data streams, network management, sketches, netflow
32	Yik-Chung Wu, Erchin Serpedin	Unified analysis of a class of blind feedforward symbol timing estimators employing second-order statistics.	IEEE Trans. Wirel. Commun.	2006	DBLP DOI BibTeX RDF
32	Yonina C. Eldar	Comparing between estimation approaches: admissible and dominating linear estimators.	IEEE Trans. Signal Process.	2006	DBLP DOI BibTeX RDF
32	Onur G. Guleryuz	Linear, Worst-Case Estimators for Denoising Quantization Noise in Transform Coded Images.	IEEE Trans. Image Process.	2006	DBLP DOI BibTeX RDF
32	Jacques-Olivier Lachaud, François de Vieilleville	Convex Shapes and Convergence Speed of Discrete Tangent Estimators.	ISVC (2)	2006	DBLP DOI BibTeX RDF
32	Almila Bahar, Evren Giiner, Canan Özgen, Ugur Halici	Design of State Estimators for the Inferential Control of an Industrial Distillation Column.	IJCNN	2006	DBLP DOI BibTeX RDF
32	Christoph Heinz, Bernhard Seeger	Exploring Data Streams with Nonparametric Estimators.	SSDBM	2006	DBLP DOI BibTeX RDF
32	Zvika Ben-Haim, Yonina C. Eldar	Maximum set estimators with bounded estimation error.	IEEE Trans. Signal Process.	2005	DBLP DOI BibTeX RDF
32	Dimitrios Gunopulos, George Kollios, Vassilis J. Tsotras, Carlotta Domeniconi	Selectivity estimators for multidimensional range queries over real attributes.	VLDB J.	2005	DBLP DOI BibTeX RDF
32	Elad Barkan, Eli Biham	Conditional Estimators: An Effective Attack on A5/1.	Selected Areas in Cryptography	2005	DBLP DOI BibTeX RDF
32	Tûba Aktaran-Kalayci, David Goldsman	Linear combinations of overlapping variance estimators for simulations.	WSC	2005	DBLP DOI BibTeX RDF
32	François de Vieilleville, Jacques-Olivier Lachaud, Fabien Feschet	Maximal Digital Straight Segments and Convergence of Discrete Geometric Estimators.	SCIA	2005	DBLP DOI BibTeX RDF
32	David J. Gorsich, Marc G. Genton	On the discretization of nonparametric isotropic covariogram estimators.	Stat. Comput.	2004	DBLP DOI BibTeX RDF	Bochner''s theorem, Fourier-Bessel series, nonnegative least squares, spatial prediction, positive definiteness
32	Shuli Sun	Multisensor optimal information fusion input white noise deconvolution estimators.	IEEE Trans. Syst. Man Cybern. Part B	2004	DBLP DOI BibTeX RDF
32	Shui Yu 0003, Hui Song, Fanyuan Ma	Novel SVM Performance Estimators for Information Retrieval Systems.	APWeb	2004	DBLP DOI BibTeX RDF
32	M. Azaria, Ilia Vitsnudel, Yehoshua Y. Zeevi	The design of two-dimensional gradient estimators based on one-dimensional operators.	IEEE Trans. Image Process.	1996	DBLP DOI BibTeX RDF
32	Peter J. Verveer, Robert P. W. Duin	An Evaluation of Intrinsic Dimensionality Estimators.	IEEE Trans. Pattern Anal. Mach. Intell.	1995	DBLP DOI BibTeX RDF
29	Ningning Yan	A Posteriori Error Estimators of Gradient Recovery Type for Elliptic Obstacle Problems.	Adv. Comput. Math.	2001	DBLP DOI BibTeX RDF	obstacle problems, a posteriori error estimators, superconvergence, finite element approximation, gradient recovery
29	Wen-Chi Hou, Gultekin Özsoyoglu	Statistical Estimators for Aggregate Relational Algebra Queries.	ACM Trans. Database Syst.	1991	DBLP DOI BibTeX RDF	simple random sampling, sampling, selectivity, relational algebra, statistical estimators
29	Robert P. W. Duin	On the Choice of Smoothing Parameters for Parzen Estimators of Probability Density Functions.	IEEE Trans. Computers	1976	DBLP DOI BibTeX RDF	multidimensional probability density function, multimodal probability density function, Parzen estimators, pattern recognition, Data analysis, smoothing
28	Onur Ozdemir, Ruixin Niu, Pramod K. Varshney	Channel Aware Target Localization With Quantized Data in Wireless Sensor Networks.	IEEE Trans. Signal Process.	2009	DBLP DOI BibTeX RDF
28	Adrian Basarab, Hervé Liebgott, Philippe Delachartre	Analytic Estimation of Subsample Spatial Shift Using the Phases of Multidimensional Analytic Signals.	IEEE Trans. Image Process.	2009	DBLP DOI BibTeX RDF
28	Anil Aswani, Peter J. Bickel, Claire J. Tomlin	Statistics for sparse, high-dimensional, and nonparametric system identification.	ICRA	2009	DBLP DOI BibTeX RDF
28	Ping Gao 0001, Cihan Tepedelenlioglu	Practical Issues in Estimation Over Multiaccess Fading Channels With TBMA Wireless Sensor Networks.	IEEE Trans. Signal Process.	2008	DBLP DOI BibTeX RDF
28	Xavier Mestre	On the Asymptotic Behavior of the Sample Estimates of Eigenvalues and Eigenvectors of Covariance Matrices.	IEEE Trans. Signal Process.	2008	DBLP DOI BibTeX RDF
28	Martin Raphan, Eero P. Simoncelli	Optimal Denoising in Redundant Representations.	IEEE Trans. Image Process.	2008	DBLP DOI BibTeX RDF
28	Sanasam Ranbir Singh, Hema A. Murthy, Timothy A. Gonsalves	Effect of word density on measuring words association.	Bangalore Compute Conf.	2008	DBLP DOI BibTeX RDF	joint probability, word density, words association norm, words association
28	Alicja Jokiel-Rokita, Ryszard Magiera	Minimax estimation of a probability of success under LINEX loss.	Stat. Comput.	2007	DBLP DOI BibTeX RDF	Minimax estimation, Binomial probability, LINEX loss function, Finitely supported least favorable priors
28	Ioannis D. Schizas, Georgios B. Giannakis, Zhi-Quan Luo	Distributed Estimation Using Reduced-Dimensionality Sensor Observations.	IEEE Trans. Signal Process.	2007	DBLP DOI BibTeX RDF
28	Takayuki Osogami	Relations in the Central Limit Theorem Version of the Response Time Law.	QEST	2007	DBLP DOI BibTeX RDF
28	Ketan Rajawat, Ajit Kumar Chaturvedi	Non-Data Aided Symbol Timing Estimation in MIMO Systems.	ICC	2007	DBLP DOI BibTeX RDF
28	Donald B. Percival, William L. B. Constantine	Exact simulation of Gaussian Time Series from Nonparametric Spectral Estimates with Application to Bootstrapping.	Stat. Comput.	2006	DBLP DOI BibTeX RDF	Circulant embedding, Power law process, Surrogate time series, Time series analysis, Gaussian process