Results 21 to 30 of about 511,753 (356)

Discriminative Training Methods for Hidden Markov Models: Theory and Experiments with Perceptron Algorithms

open access: yesConference on Empirical Methods in Natural Language Processing, 2002
We describe new algorithms for training tagging models, as an alternative to maximum-entropy models or conditional random fields (CRFs). The algorithms rely on Viterbi decoding of training examples, combined with simple additive updates.
M. Collins
semanticscholar   +1 more source

momentuHMM: R package for generalized hidden Markov models of animal movement [PDF]

open access: yes, 2017
Discrete‐time hidden Markov models (HMMs) have become an immensely popular tool for inferring latent animal behaviours from telemetry data. While movement HMMs typically rely solely on location data (e.g.
B. McClintock, T. Michelot
semanticscholar   +1 more source

Mixture Hidden Markov Models for Sequence Data: The seqHMM Package in R [PDF]

open access: yesJournal of Statistical Software, 2017
Sequence analysis is being more and more widely used for the analysis of social sequences and other multivariate categorical time series data. However, it is often complex to describe, visualize, and compare large sequence data, especially when there are
S. Helske, Jouni Helske
semanticscholar   +1 more source

Limit Theorems in Hidden Markov Models [PDF]

open access: yes, 2012
In this paper, under mild assumptions, we derive a law of large numbers, a central limit theorem with an error estimate, an almost sure invariance principle and a variant of Chernoff bound in finite-state hidden Markov models. These limit theorems are of
Han, Guangyue
core   +3 more sources

Supply Sequence Modelling Using Hidden Markov Models

open access: yesApplied Sciences, 2022
Logistics processes, their effective planning as well as proper management and effective implementation are of key importance in an enterprise. This article analyzes the process of supplying raw materials necessary for the implementation of production ...
Anna Borucka   +5 more
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

Second-Order Belief Hidden Markov Models [PDF]

open access: yes, 2014
Hidden Markov Models (HMMs) are learning methods for pattern recognition. The probabilistic HMMs have been one of the most used techniques based on the Bayesian model.
A. Aregui   +17 more
core   +5 more sources

Predicting the Functional, Molecular, and Phenotypic Consequences of Amino Acid Substitutions using Hidden Markov Models

open access: yesHuman Mutation, 2012
The rate at which nonsynonymous single nucleotide polymorphisms (nsSNPs) are being identified in the human genome is increasing dramatically owing to advances in whole‐genome/whole‐exome sequencing technologies.
Hashem A. Shihab   +7 more
semanticscholar   +1 more source

Employing Second-Order Circular Suprasegmental Hidden Markov Models to Enhance Speaker Identification Performance in Shouted Talking Environments

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2010
Speaker identification performance is almost perfect in neutral talking environments. However, the performance is deteriorated significantly in shouted talking environments.
Ismail Shahin
doaj   +1 more source

Analysis and Comparison of Bitcoin and S and P 500 Market Features Using HMMs and HSMMs

open access: yesInformation, 2019
We implement hidden Markov models (HMMs) and hidden semi-Markov models (HSMMs) on Bitcoin/US dollar (BTC/USD) with the aim of market phase detection. We make analogous comparisons to Standard and Poor’s 500 (S and P 500), a benchmark traditional ...
David Suda, Luke Spiteri
doaj   +1 more source

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