Results 11 to 20 of about 6,719 (190)

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

Use of Automation Technologies and Data Mining in Speech Recognition for Autism. [PDF]

open access: yesBrain Behav
Pipeline analyzes clinical and naturalistic speech using LENA, wav2vec 2.0, and foundation‐model ASR (Whisper) to enable scalable ASD detection and severity estimation. Future work integrates benchmarking, privacy‐preserving collaboration (federated learning), and explainable, edge‐ready AI for clinically credible assessment and longitudinal monitoring.
Mao R, Zhu Y.
europepmc   +2 more sources

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

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   +1 more source

Hidden semi-Markov Model based earthquake classification system using Weighted Finite-State Transducers [PDF]

open access: yesNonlinear Processes in Geophysics, 2011
Automatic earthquake detection and classification is required for efficient analysis of large seismic datasets. Such techniques are particularly important now because access to measures of ground motion is nearly unlimited and the target waveforms ...
M. Beyreuther, J. Wassermann
doaj   +1 more source

Evaluating the CDMA System Using Hidden Markov and Semi Hidden Markov Models

open access: yesIPTEK The Journal for Technology and Science, 2021
CDMA is an important and basic part of today’s communications technologies. This technology can be analyzed efficiently by reducing the time, computation burden, and cost by characterizing the physical layer with a Markov Model. Waveform level simulation is generally used for simulating different parts of a digital communication system.
Shirin Kordnoori   +3 more
openaire   +2 more sources

hhsmm: an R package for hidden hybrid Markov/semi-Markov models

open access: yesComputational Statistics, 2022
This paper introduces the hhsmm R package, which involves functions for initializing, fitting, and predication of hidden hybrid Markov/semi-Markov models. These models are flexible models with both Markovian and semi-Markovian states, which are applied to situations where the model involves absorbing or macro-states.
Morteza Amini   +2 more
openaire   +2 more sources

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