Results 11 to 20 of about 29,392 (243)

SOLUTION TO EVALUATION PROBLEM OF HIDDEN SEMI-MARKOV QP-MODELS

open access: yesAdvanced Engineering Research, 2014
A hidden semi-Markov QP-model is considered; and the way it could be embedded in a general hidden semi-Markov model is shown. The estimation problem (the first of three classical theory problems of the hidden Markov models and hidden semi-Markov models ...
V. M. Deundyak, M. A. Zhdanova
doaj   +2 more sources

Early Life Stress Affects Human Decision Making by Increasing Expectations of Volatility. [PDF]

open access: yesDev Sci
ABSTRACT People learn most effectively when they can flexibly modify strategies to accommodate environmental changes. Here, we explore how chronic early life stress influences the ways individuals weight and prioritize new information when making decisions. To do so, we examined the choices of 11–16‐year‐old children in a reward learning task. Children
Smith KE   +4 more
europepmc   +2 more sources

A Regularized Vector Autoregressive Hidden Semi-Markov model, with Application to Multivariate Financial Data

open access: yesProceedings of the International Florida Artificial Intelligence Research Society Conference, 2021
Hidden Markov model (HMM) has been a popular choice for financial time series modeling due to its advantage in capturing dynamic regimes. However, HMM's implicit assumption that the state duration follows a geometric distribution is too strong to hold in
Zekun Xu, Ye Liu
doaj   +1 more source

Improving Phoneme Sequence Recognition using Phoneme Duration Information in DNN-HSMM [PDF]

open access: yesJournal of Artificial Intelligence and Data Mining, 2019
Improving phoneme recognition has attracted the attention of many researchers due to its applications in various fields of speech processing. Recent research achievements show that using deep neural network (DNN) in speech recognition systems ...
M. Asadolahzade Kermanshahi   +1 more
doaj   +1 more source

Prediction of PM2.5 pollution in Tehran air based on temperature and pressure using Markovian regime-switching non-parametric additive transitive regression model [PDF]

open access: yesریاضی و جامعه, 2023
In this paper, we introduce the Markovian regime-switching regression model, which is a graphical model based on the hidden Markov model. This model can be viewed as a clustered regression model, in which a Markov process models the transition from one ...
Morteza Amini
doaj   +1 more source

Hidden Markov models: the best models for forager movements? [PDF]

open access: yesPLoS ONE, 2013
One major challenge in the emerging field of movement ecology is the inference of behavioural modes from movement patterns. This has been mainly addressed through Hidden Markov models (HMMs).
Rocio Joo   +3 more
doaj   +1 more source

An Analysis of Return States in Iran Stock Market: Hidden Semi-Markov Model Approach [PDF]

open access: yesتحقیقات مالی, 2020
Objective: Analyzing the behavior of Tehran Stock Market, based on the daily asset return for the duration between 1387 and 1397 has been the main aim of this research.Methods: Tehran Stock Market daily asset return can be considered as a time-series and
Maysam Rafei, Mahin Shokri
doaj   +1 more source

From Risk Assessment to Resilience Assessment. an Application to a Hazmat Storage Plant

open access: yesChemical Engineering Transactions, 2020
The purpose of this work is to outline a framework for assessing the resilience of a petrochemical storage plant, through the construction of a dynamic hierarchical Bayesian network. The BN approach allows keeping memory of the states, in order to manage
Tomaso Vairo   +2 more
doaj   +1 more source

Hidden Markov Model and States Prediction of an Autonomous Wind-Diesel Complex [PDF]

open access: yesE3S Web of Conferences, 2023
The problem of assessing the reliability and analyzing the functioning of an autonomous winddiesel complex, consisting of a wind power plant, working and standby diesel generators, an inverter and a storage battery, is considered.
Obzherin Yuriy E.   +2 more
doaj   +1 more source

A coupled hidden Markov model for disease interactions [PDF]

open access: yes, 2012
To investigate interactions between parasite species in a host, a population of field voles was studied longitudinally, with presence or absence of six different parasites measured repeatedly.
Telfer, S.E.   +11 more
core   +1 more source

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