Results 21 to 30 of about 6,719 (190)

Scalable Bayesian Inference for Coupled Hidden Markov and Semi-Markov Models [PDF]

open access: yesJournal of Computational and Graphical Statistics, 2019
Bayesian inference for coupled hidden Markov models frequently relies on data augmentation techniques for imputation of the hidden state processes. Considerable progress has been made on developing such techniques, mainly using Markov chain Monte Carlo (MCMC) methods.
Touloupou, Panayiota   +2 more
openaire   +3 more sources

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

Sequential fraud detection by determining proper sequence length in payment cards using HMM [PDF]

open access: yesAUT Journal of Modeling and Simulation, 2020
The use of bank cards has increased significantly in recent years. This has resulted in increasing the probability of internet payment card frauds and has highly imposed losses on customers, institutions and banks.
mehrdad kargari, gazaleh shahidi
doaj   +1 more source

Learning Evolutionary Stages with Hidden Semi-Markov Model for Predicting Social Unrest Events

open access: yesDiscrete Dynamics in Nature and Society, 2020
Social unrest events are common happenings in modern society which need to be proactively handled. An effective method is to continuously assess the risk of upcoming social unrest events and predict the likelihood of these events. Our previous work built
Fengcai Qiao, Xin Zhang, Jinsheng Deng
doaj   +1 more source

A Novel Health Prognosis Method for a Power System Based on a High-Order Hidden Semi-Markov Model

open access: yesEnergies, 2021
Power system health prognosis is a key process of condition-based maintenance. For the problem of large error in the residual lifetime prognosis of a power system, a novel residual lifetime prognosis model based on a high-order hidden semi-Markov model ...
Qinming Liu   +4 more
doaj   +1 more source

Homogeneous Continuous-Time, Finite-State Hidden Semi-Markov Modeling for Enhancing Empirical Classification System Diagnostics of Industrial Components

open access: yesMachines, 2018
This work presents a method to improve the diagnostic performance of empirical classification system (ECS), which is used to estimate the degradation state of components based on measured signals.
Francesco Cannarile   +4 more
doaj   +1 more source

A method to estimate the probability of strong winds occurrence using weather radar data

open access: yesWind Energy, 2022
Weather radars are capable of detecting and displaying storm‐related turbulence as well as precipitation rate with fine spatial resolution and reliable quality. Especially, weather radars can enable the detection of atmospheric conditions in the vicinity
Navid Chiniforoush   +2 more
doaj   +1 more source

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