Results 31 to 40 of about 41,241 (143)

Dynamic Bayesian Networks for Audio-Visual Speech Recognition

open access: yesEURASIP Journal on Advances in Signal Processing, 2002
The use of visual features in audio-visual speech recognition (AVSR) is justified by both the speech generation mechanism, which is essentially bimodal in audio and visual representation, and by the need for features that are invariant to acoustic noise
Liang Luhong   +4 more
doaj   +1 more source

Using Hidden Markov Chains in Recognition of Vowel Letters in English Language [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2006
This study deals with hidden Markov models . These models consist of sets of finite states , each one of them is associated with a probability distribution .
doaj   +1 more source

Hidden Semi Markov Models for Multiple Observation Sequences: The mhsmm Package for R

open access: yesJournal of Statistical Software, 2011
This paper describes the R package mhsmm which implements estimation and prediction methods for hidden Markov and semi-Markov models for multiple observation sequences. Such techniques are of interest when observed data is thought to be dependent on some
Jared O'Connell, Søren Højsgaard
doaj  

Enhancing Botnet Detection in Network Security Using Profile Hidden Markov Models

open access: yesApplied Sciences
A botnet is a network of compromised computer systems, or bots, remotely controlled by an attacker through bot controllers. This covert network poses a threat through large-scale cyber attacks, including phishing, distributed denial of service (DDoS ...
Rucha Mannikar, Fabio Di Troia
doaj   +1 more source

Hidden Markov models: Pitfalls and opportunities in ecology

open access: yesMethods in Ecology and Evolution, 2023
Hidden Markov models (HMMs) and their extensions are attractive methods for analysing ecological data where noisy, multivariate measurements are made of a hidden, ecological process, and where this hidden process is represented by a sequence of discrete ...
Richard Glennie   +5 more
doaj   +1 more source

ADAPTIVE LEARNING OF HIDDEN MARKOV MODELS FOR EMOTIONAL SPEECH

open access: yesInformatika, 2016
An on-line unsupervised algorithm for estimating the hidden Markov models (HMM) parame-ters is presented. The problem of hidden Markov models adaptation to emotional speech is solved.
A. V. Tkachenia
doaj  

Analysis of multimodal Bayesian nonparametric autoregressive hidden Markov models for process monitoring in robotic contact tasks

open access: yesInternational Journal of Advanced Robotic Systems, 2019
Robot introspection aids robots to understand what they do and how they do it. Previous robot introspection techniques have often used parametric hidden Markov models or supervised learning techniques, implying that the number of hidden states or classes
Hongmin Wu, Yisheng Guan, Juan Rojas
doaj   +1 more source

HIPPI: highly accurate protein family classification with ensembles of HMMs

open access: yesBMC Genomics, 2016
Background Given a new biological sequence, detecting membership in a known family is a basic step in many bioinformatics analyses, with applications to protein structure and function prediction and metagenomic taxon identification and abundance ...
Nam-phuong Nguyen   +3 more
doaj   +1 more source

Hidden Markov models applied to a subsequence of the Xylella fastidiosa genome

open access: yesGenetics and Molecular Biology, 2003
Dependencies in DNA sequences are frequently modeled using Markov models. However, Markov chains cannot account for heterogeneity that may be present in different regions of the same DNA sequence.
Silva Cibele Q. da
doaj  

Hidden Markov Models in Speech Recognition

open access: yesAdvances in Electrical and Electronic Engineering, 2008
Voice control is one of the perspective areas of interdisciplinary field called Human Machine Interface (HMI). By the voice control of machines, we usually deal with the recognition of commands from previously defined set.
Jan Krajcovic   +2 more
doaj  

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