Results 11 to 20 of about 22,587 (196)

GMM-HMM-Based Medium- and Long-Term Multi-Wind Farm Correlated Power Output Time Series Generation Method

open access: yesIEEE Access, 2021
Medium- and long-term wind power output time series are required in stochastic programming model for power system planning. Hidden Markov model (HMM) is a common method to generate wind power output time series, which can simultaneously consider the ...
Yufei Li   +6 more
doaj   +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

Using features of local densities, statistics and HMM toolkit (HTK) for offline Arabic handwriting text recognition

open access: yesJournal of Electrical Systems and Information Technology, 2017
This paper presents an analytical approach of an offline handwritten Arabic text recognition system. It is based on the Hidden Markov Models (HMM) Toolkit (HTK) without explicit segmentation. The first phase is preprocessing, where the data is introduced
El Moubtahij Hicham   +2 more
doaj   +1 more source

Hidden Markov Model Based on Logistic Regression

open access: yesMathematics, 2023
A hidden Markov model (HMM) is a useful tool for modeling dependent heterogeneous phenomena. It can be used to find factors that affect real-world events, even when those factors cannot be directly observed.
Byeongheon Lee, Joowon Park, Yongku Kim
doaj   +1 more source

Bernoulli Filters for Multiple Correlated Sensors

open access: yesIEEE Access, 2021
The Bernoulli filter is a general, Bayes-optimal solution for tracking a single disappearing and reappearing target, using a single sensor whose observations are corrupted by missed detections and a general, known clutter process.
Ronald Mahler
doaj   +1 more source

Hidden Markov model speed heuristic and iterative HMM search procedure [PDF]

open access: yesBMC Bioinformatics, 2010
Profile hidden Markov models (profile-HMMs) are sensitive tools for remote protein homology detection, but the main scoring algorithms, Viterbi or Forward, require considerable time to search large sequence databases.We have designed a series of database filtering steps, HMMERHEAD, that are applied prior to the scoring algorithms, as implemented in the
L. Steven Johnson   +2 more
openaire   +3 more sources

Enhanced Map-Matching Algorithm with a Hidden Markov Model for Mobile Phone Positioning

open access: yesISPRS International Journal of Geo-Information, 2017
Numerous map-matching techniques have been developed to improve positioning, using Global Positioning System (GPS) data and other sensors. However, most existing map-matching algorithms process GPS data with high sampling rates, to achieve a higher ...
An Luo, Shenghua Chen, Bin Xv
doaj   +1 more source

Sequence Classification Method Based on Neighborhood Information in Unconstrained Space [PDF]

open access: yesJisuanji gongcheng, 2016
A sequence classification methodology is proposed based on a conjecture that neighborhood’s similarity results in sequence’s similarity.The constrained Hidden Markov Model(HMM) space defined by sample is transformed to unconstrained HMM space.The ...
WANG Xingfu,WANG Yuqi
doaj   +1 more source

Arabic Dialects System using Hidden Markov Models (HMMs)

open access: yesWSEAS TRANSACTIONS ON COMPUTERS, 2022
The Arabic language has many different dialects and it must be recognized before using the automatic speech recognition (ASR). On the other hand, it is observed in all Arab countries that the standard Arabic language is widely written and used in an official speech, newspapers, public administration, and schools but it is not used in daily ...
Zakaria Suliman Zubi, Eman Jibril Idris
openaire   +1 more source

Hierarchically Clustered HMM for Protein Sequence Motif Extraction with Variable Length

open access: yesTsinghua Science and Technology, 2014
Protein sequence motifs extraction is an important field of bioinformatics since its relevance to the structural analysis. Two major problems are related to this field: (1) searching the motifs within the same protein family; and (2) assuming a window ...
Cody Hudson, Bernard Chen, Dongsheng Che
doaj   +1 more source

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