Results 41 to 50 of about 62,966 (184)

Protein secondary structure prediction for a single-sequence using hidden semi-Markov models

open access: yesBMC Bioinformatics, 2006
Background The accuracy of protein secondary structure prediction has been improving steadily towards the 88% estimated theoretical limit. There are two types of prediction algorithms: Single-sequence prediction algorithms imply that information about ...
Borodovsky Mark   +2 more
doaj   +1 more source

SMCis: An Effective Algorithm for Discovery of Cis-Regulatory Modules. [PDF]

open access: yesPLoS ONE, 2016
The discovery of cis-regulatory modules (CRMs) is a challenging problem in computational biology. Limited by the difficulty of using an HMM to model dependent features in transcriptional regulatory sequences (TRSs), the probabilistic modeling methods ...
Haitao Guo, Hongwei Huo, Qiang Yu
doaj   +1 more source

Spatio-temporal categorization for first-person-view videos using a convolutional variational autoencoder and Gaussian processes

open access: yesFrontiers in Robotics and AI, 2022
In this study, HcVGH, a method that learns spatio-temporal categories by segmenting first-person-view (FPV) videos captured by mobile robots, is proposed.
Masatoshi Nagano   +5 more
doaj   +1 more source

Informational and Causal Architecture of Continuous-time Renewal and Hidden Semi-Markov Processes

open access: yes, 2016
We introduce the minimal maximally predictive models ({\epsilon}-machines) of processes generated by certain hidden semi-Markov models. Their causal states are either hybrid discrete-continuous or continuous random variables and causal-state transitions ...
Crutchfield, James P., Marzen, Sarah E.
core   +2 more sources

Structure and Randomness of Continuous-Time Discrete-Event Processes

open access: yes, 2017
Loosely speaking, the Shannon entropy rate is used to gauge a stochastic process' intrinsic randomness; the statistical complexity gives the cost of predicting the process.
Crutchfield, J. P., Marzen, S. E.
core   +1 more source

A new model-discriminant training algorithm for hybrid NN-HMM systems [PDF]

open access: yes, 1996
This paper describes a hybrid system for continuous speech recognition consisting of a neural network (NN) and a hidden Markov model (HMM). The system is based on a multilayer perceptron, which approximates the a-posteriori probability of a sequence of ...
Caspary, P., Reichl, W., Ruske, G.
core   +2 more sources

Introduction to Hidden Semi-Markov Models

open access: yes, 2018
The purpose of this volume is to present the theory of Markov and semi-Markov processes in a discrete-time, finite-state framework. Given this background, hidden versions of these processes are introduced and related estimation and filtering results developed. The approach is similar to the earlier book, Elliott et al. (1995).
John van der Hoek, Robert J. Elliott
openaire   +3 more sources

On Regime Switching Models

open access: yesMathematics
Regime switching models have been widely studied for their ability to capture the dynamic behavior of time series data and are widely used in economic and financial data analysis.
Zhenni Tan, Yuehua Wu
doaj   +1 more source

Log-Viterbi algorithm applied on second-order hidden Markov model for human activity recognition

open access: yesInternational Journal of Distributed Sensor Networks, 2018
Recognition of human activities is getting into the limelight among researchers in the field of pervasive computing, ambient intelligence, robotic, and monitoring such as assistive living, elderly care, and health care.
Yang Sung-Hyun   +3 more
doaj   +1 more source

Global discriminative learning for higher-accuracy computational gene prediction. [PDF]

open access: yesPLoS Computational Biology, 2007
Most ab initio gene predictors use a probabilistic sequence model, typically a hidden Markov model, to combine separately trained models of genomic signals and content.
Axel Bernal   +3 more
doaj   +1 more source

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