نتایج جستجو برای: density estimation

تعداد نتایج: 654707  

2004
YURI B. MELNIKOV

We present state of the art, the new results, and discuss open problems in the field of spectral analysis for a class of integral-difference operators appearing in some nonequilibrium statistical physics models as collision operators. The author dedicates this work to the memory of Professor Ilya Prigogine, who initiated this activity in 1997 and whose interesting and most enlightening advices ...

2011
Brandon Richardson

An imaging spectrometer is an instrument that captures a continuous spectrum of light (often ranging from 460nm to 2.5μm) for every pixel in a photograph. Using this type of instrument an image can be taken of any subject and detailed spectral analysis can be run on any part of the image produced. Hyperpectral image umixming is the process by which hyperspectral images are broken down into thei...

Journal: :CoRR 2004
Lili Ma Yangquan Chen Kevin L. Moore

This paper presents a blind detection and compensation technique for camera lens geometric distortions. The lens distortion introduces higher-order correlations in the frequency domain and in turn it can be detected using higher-order spectral analysis tools without assuming any specific calibration target. The existing blind lens distortion removal method only considered a single-coefficient r...

Journal: :Math. Comput. 1998
Rafikul Alam Rekha P. Kulkarni Balmohan V. Limaye

A systematic development of higher order spectral analysis, introduced by Dellwo and Friedman, is undertaken in the framework of an appropriate product space. Accelerated analogues of Osborn’s results about spectral approximation are presented. Numerical examples are given by considering an integral operator.

2003
Mingzhou Song Stéphane Boissinot Robert M. Haralick Ihsin T. Phillips

We obtain recombination rate distribution functions for all human chromosomes using an optimal quantization method. This non-parametric method allows us to control over-/under-fitting. The piece-wise constant recombination rate distribution functions are convenient to store and retrieve. Our experimental results showed more abrupt distribution functions than two recently published results. In t...

2010
Nicholas Michael Mark Dilsizian Dimitris N. Metaxas Judee K. Burgoon

We propose a data-driven, unobtrusive and covert method for automatic deception detection in interrogation interviews from visual cues only. Using skin blob analysis together with Active Shape Modeling, we continuously track and analyze the motion of the hands and head as a subject is responding to interview questions, as well as their facial micro expressions, thus extracting motion profiles, ...

1997
Li-Shan Huang

A test for the one-sample goodness-of-t problem is proposed. The test is based on a distance that measures the diierence, in terms of roughness, between the underlying density function and the hypothesized density function. One advantage of using a roughness measure is high power in detecting high-frequency alternatives and densities with sharp features. The test statistic that estimates the di...

2002
Norimichi Tsumura Hideki Sato Takayuki Hasegawa Hideaki Haneishi Yoichi Miyake

A new technique is proposed to improve the way of selecting samples used to estimate spectral reflectance from sensor responses in multi-band images. This technique limits the samples of reflectance spectra based on the spectral reflectance estimated by the conventional estimation method, and estimates it again using the limited samples. Vector angle and distance among reflectance spectra as th...

Journal: :CoRR 2017
You Lin Ming Yang Can Wan Jianhui Wang Yong-Hua Song

 Abstract—Short-term probabilistic wind power forecasting can provide critical quantified uncertainty information of wind generation for power system operation and control. As the complicated characteristics of wind power prediction error, it would be difficult to develop a universal forecasting model dominating over other alternative models. Therefore, a novel multi-model combination (MMC) ap...

2005
Vojtech Franc Václav Hlavác

This paper describes solvers for specific quadratic programming (QP) tasks. The QP tasks in question appear in numerous problems, e.g., classifier learning and probability density estimation. The QP task becomes challenging when large number of variables is to be optimized. This the case common in practice. We propose QP solvers which are simple to implement and still able to cope with problems...

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