Results 21 to 30 of about 8,159 (239)

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

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

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

Performance of hidden Markov model and dynamic Bayesian network classifiers on handwritten Arabic word recognition [PDF]

open access: yes, 2011
This paper presents a comparative study of two machine learning techniques for recognizing handwritten Arabic words, where hidden Markov models (HMMs) and dynamic Bayesian networks (DBNs) were evaluated.
Jinchang Ren   +11 more
core   +1 more source

Fatigue crack fault diagnosis and prognosis based on hidden semi-Markov model

open access: yesThe Journal of Engineering, 2018
Aiming at the fault diagnosis and remaining useful life (RUL) prediction of fatigue cracks of a helicopter main gearbox planet carrier, this article proposes a hidden semi-Markov model (HSMM) methodology, which introduces the explicit state durational ...
Lei Fan   +3 more
doaj   +1 more source

Production flow modeling based on BLE-based RSSI data with non-detectable areas [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2023
This study presents a method for modelling manufacturing processes to predict key performance indicators (KPIs) such as cycle time using Bluetooth Low Energy (BLE) data. We consider BLE applications to be similar to Radio-Frequency IDentification (RFID)
Karishma Agrawal, Supachai Vorapojpisut
doaj  

FlywayNet: A hidden semi‐Markov model for inferring the structure of migratory bird networks from count data

open access: yesMethods in Ecology and Evolution, 2023
Every year, millions of birds migrate between breeding and nonbreeding habitat, but the relative numbers of animals moving between sites are difficult to observe directly.
Sam Nicol   +6 more
doaj   +1 more source

A Generic Clustering-Based Algorithm for Approximating IOHMM Topology and Parameters

open access: yesIEEE Access, 2021
In this paper, a novel generic clustering-based algorithm for approximating the topology and the parameters of discrete state space Input/Output Hidden Markov Models (IOHMMs) with continuous observation spaces is introduced. The algorithm can accommodate
Gerald Rocher   +2 more
doaj   +1 more source

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