Results 11 to 20 of about 31,391 (258)

Hierarchical trie packet classification algorithm based on expectation-maximization clustering. [PDF]

open access: yesPLoS ONE, 2017
With the development of computer network bandwidth, packet classification algorithms which are able to deal with large-scale rule sets are in urgent need. Among the existing algorithms, researches on packet classification algorithms based on hierarchical
Xia-An Bi, Junxia Zhao
doaj   +1 more source

Incorporating Importance Sampling in EM Learning for Sequence Detection in SPAD Underwater OWC

open access: yesIEEE Access, 2019
In this paper, an importance sampling-based expectation-maximization (EMIS) algorithm is developed for sequence detection in single-photon avalanche diode underwater optical wireless communication (OWC) systems.
Nuo Huang   +3 more
doaj   +1 more source

Expectation-Maximization via Pretext-Invariant Representations

open access: yesIEEE Access, 2023
Contrastive learning methods have been widely adopted in numerous unsupervised and self-supervised visual representation learning methods. Such algorithms aim to maximize the cosine similarity between two positive samples while minimizing that of the ...
Chingis Oinar, Binh M. Le, Simon S. Woo
doaj   +1 more source

Gauss process state-space model optimization algorithm with expectation maximization

open access: yesInternational Journal of Distributed Sensor Networks, 2019
A Gauss process state-space model trained in a laboratory cannot accurately simulate a nonlinear system in a non-laboratory environment. To solve this problem, a novel Gauss process state-space model optimization algorithm is proposed by combining the ...
Hongqiang Liu   +3 more
doaj   +1 more source

An Efficient Gaussian Filter Based on Gaussian Symmetric Markov Random Field

open access: yesIEEE Access, 2022
This article presents a new image denoising algorithm that uses Gaussian Symmetric Markov random fields based on maximum a posteriori estimation. First, an image denoising model based on Gaussian Symmetric Markov random fields is built, and the image ...
Fusong Xiong   +3 more
doaj   +1 more source

Failure Analysis for Truncated and Fully Censored Lifetime Data With a Hierarchical Grid Algorithm

open access: yesIEEE Access, 2020
In the field of failure analysis and reliability evaluation, truncated and censored lifetime data due to observational constraints and periodic inspection schemes are highly common. The expectation-maximization algorithm is a widely employed approach for
Qi Li   +5 more
doaj   +1 more source

A recursive expectation-maximization algorithm for speaker tracking and separation

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2021
The problem of blind and online speaker localization and separation using multiple microphones is addressed based on the recursive expectation-maximization (REM) procedure.
Ofer Schwartz, Sharon Gannot
doaj   +1 more source

Channel Estimation for Relay-Based M2M Two-Way Communications Using Expectation-Maximization

open access: yesInternational Journal of Distributed Sensor Networks, 2013
The growing popularity of machine-to-machine (M2M) communications in wireless networks is driving the need to update the corresponding receiver technology based on the characteristics of M2M.
Xiaoyan Xu   +4 more
doaj   +1 more source

Improved image reconstruction based on ultrasonic transmitted wave computerized tomography on concrete

open access: yesEURASIP Journal on Image and Video Processing, 2018
Considering the non-uniqueness and instability of concrete defect detection in construction engineering, ultrasonic time of flight data and maximum likelihood expectation maximization algorithm were proposed to improve the readability of the ultrasonic ...
Honghui Fan, Hongjin Zhu
doaj   +1 more source

An Integrated Approach for Making Inference on the Number of Clusters in a Mixture Model

open access: yesEntropy, 2019
This paper presents an integrated approach for the estimation of the parameters of a mixture model in the context of data clustering. The method is designed to estimate the unknown number of clusters from observed data.
Erlandson Ferreira Saraiva   +3 more
doaj   +1 more source

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