Results 21 to 30 of about 2,614,519 (287)

Trend Extraction From Time Series With Structural Breaks [PDF]

open access: yes, 2007
Trend extraction from time series is often performed by using the filter proposed by Leser (1961), also known as the Hodrick-Prescott filter. A practical problem arises, however, when the time series contains structural breaks (such as produced by German
Schlicht, Ekkehart
core   +4 more sources

Optimal cosine modulated nonuniform linear phase FIR filter bank design via stretching and shifting frequency response of prototype filter [PDF]

open access: yes, 2010
This paper proposes an optimal cosine modulated nonuniform linear phase finite impulse response (FIR) filter bank design. The frequency responses of all the analysis filters and the synthesis filters of the filter bank are derived based on both ...
Benmesbah, Lamia   +5 more
core   +1 more source

Filtering Methods for Mixture Models [PDF]

open access: yesJournal of Computational and Graphical Statistics, 2007
We consider Bayesian inference for mixture distributions of known number of components via a set of filtering recursions. We extend a method—proposed in an earlier article—of direct simulation for discrete mixture distributions in order to analyze continuous mixture models. Furthermore, we introduce resampling steps similar to those in particle filters
Fearnhead, P, Meligkotsidou, L
openaire   +1 more source

A new method of filter coefficient quantization

open access: yesDianzi Jishu Yingyong, 2019
The method of FIR filter coefficient quantization has influence not only on the filter performance, but also on the circuit system performance. Normal filter coefficient quantization method is analyzed, and a new method of filter coefficient quantization
Du Yong
doaj   +1 more source

Rule-defect oriented browser XSS filter test method

open access: yes网络与信息安全学报, 2018
In order to alleviate XSS (cross-site scripting) attacks,modern browsers use XSS filters for defense.It is difficult to effectively test and evaluate the security of browser XSS filters.The rule-defect is the defect and security problem in the ...
Zhijie GUI, Hui SHU
doaj   +3 more sources

Trend Extraction From Time Series With Missing Observations [PDF]

open access: yes, 2007
Trend extraction from time series is often performed by using the filter proposed by Leser (1961), also known as the Hodrick-Prescott filter. A practical problem arises, however, when some data points are missing.
Schlicht, Ekkehart
core   +2 more sources

Methods and Algorithms for Robust Filtering [PDF]

open access: yes, 2004
We discuss filtering procedures for robust extraction of a signal from noisy time series. Moving averages and running medians are standard methods for this, but they have shortcomings when large spikes (outliers) respectively trends occur. Modified trimmed means and linear median hybrid filters combine advantages of both approaches, but they do not ...
Fried, Roland, Gather, Ursula
openaire   +4 more sources

Emotion Recognition of Speech Signals Based on Filter Methods [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2016
Speech is the basic mean of communication among human beings.With the increase of transaction between human and machine, necessity of automatic dialogue and removing human factor has been considered.
Narjes Yazdanian, Hamid Mahmoodian
doaj  

Investigating the Mechanism of a Linen Filter for Sesame Oil Filtration at Different Pressures and Temperatures [PDF]

open access: yesBiomechanism and Bioenergy Research, 2022
Pressing is a common method to extract oil from oilseeds. In this method, no additives are added to the oil. The oil obtained using this method has impurities that make the color cloudy and reduce its shelf life.
Behrooz Jahangiri   +2 more
doaj   +1 more source

Iterative Truncated Unscented Particle Filter

open access: yesInformation, 2020
The particle filter method is a basic tool for inference on nonlinear partially observed Markov process models. Recently, it has been applied to solve constrained nonlinear filtering problems.
Yanbo Wang   +3 more
doaj   +1 more source

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