Results 1 to 10 of about 11,721 (147)

Hidden hybrid Markov/semi-Markov chains [PDF]

open access: yesComputational Statistics & Data Analysis, 2005
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Y. Guédon
semanticscholar   +9 more sources

Unsupervised segmentation of hidden semi-Markov non-stationary chains [PDF]

open access: yesSignal Processing, 2006
In the classical hidden Markov chain (HMC) model we have a hidden chain X, which is a Markov one and an observed chain Y. HMC are widely used; however, in some situations they have to be replaced by the more general “hidden semi‐Markov chains” (HSMC) which are particular “triplet Markov chains” (TMC) T = (X, U, Y), where the auxiliary chain U models ...
Jérôme Lapuyade-Lahorgue   +1 more
openaire   +2 more sources

A New Framework for Modelling and Monitoring the Conversion of Cultivated Land to Built-up Land Based on a Hierarchical Hidden Semi-Markov Model Using Satellite Image Time Series

open access: yesRemote Sensing, 2019
Large amounts of farmland loss caused by urban expansion has been a severe global environmental problem. Therefore, monitoring urban encroachment upon farmland is a global issue.
Yuan Yuan   +6 more
doaj   +2 more sources

Modeling non stationary hidden semi-markov chains with triplet markov chains and theory of evidence [PDF]

open access: yesIEEE/SP 13th Workshop on Statistical Signal Processing, 2005, 2005
Hidden Markov chains, enabling one to recover the hidden process even for very large size, are widely used in various problems. On the one hand, it has been recently established that when the hidden chain is not stationary, the use of the theory of evidence is equivalent to consider a triplet Markov chain and can improve the efficiency of unsupervised ...
Wojciech Pieczynski
openaire   +2 more sources

Operator Stress Perception Model Based on Hidden Semi-Markov Chain for Human-Robot Collaborative Assembly – A Deep Learning Approach

open access: yesInternational Journal of Human-Computer Interaction
By implementing human-robot collaboration (HRC), cobots and operators can leverage their respective strengths during production to enhance efficiency and adaptability. However, coexistence with cobots can induce psychological stress in operators, potentially impairing their performance.
Wang, Kung-Jeng, Chen, Meng-Ping
openaire   +2 more sources

Inference, Prediction, & Entropy-Rate Estimation of Continuous-Time, Discrete-Event Processes

open access: yesEntropy, 2022
Inferring models, predicting the future, and estimating the entropy rate of discrete-time, discrete-event processes is well-worn ground. However, a much broader class of discrete-event processes operates in continuous-time.
Sarah E. Marzen, James P. Crutchfield
doaj   +1 more source

Forward-Backward Latent State Inference for Hidden Continuous-Time semi-Markov Chains [PDF]

open access: yes, 2022
Hidden semi-Markov Models (HSMM's) - while broadly in use - are restricted to a discrete and uniform time grid. They are thus not well suited to explain often irregularly spaced discrete event data from continuous-time phenomena. We show that non-sampling-based latent state inference used in HSMM's can be generalized to latent Continuous-Time semi ...
Engelmann, Nicolai, Koeppl, Heinz
openaire   +2 more sources

A PROBABILITY MODEL FOR DROUGHT PREDICTION USING FUSION OF MARKOV CHAIN AND SAX METHODS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2017
Drought is one of the most powerful natural disasters which are affected on different aspects of the environment. Most of the time this phenomenon is immense in the arid and semi-arid area.
Y. Jouybari-Moghaddam   +2 more
doaj   +1 more source

Quantile hidden semi-Markov models for multivariate time series

open access: yesStatistics and computing, 2022
This paper develops a quantile hidden semi-Markov regression to jointly estimate multiple quantiles for the analysis of multivariate time series. The approach is based upon the Multivariate Asymmetric Laplace (MAL) distribution, which allows to model the
Luca Merlo   +3 more
semanticscholar   +1 more source

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