Results 81 to 90 of about 102,383 (223)

The Bayesian Hidden Markov Chain Modeling of the Ghana COVID-19 Blood Type Infection Distribution

open access: yesRatio Mathematica
This work uses the Bayesian Poisson-Hidden Markov Model (BP-HMM) to develop a model that properly describes the blood type distribution among newly diagnosed COVID-19 patients.
Joseph Johnson Kwabina Arhinful   +3 more
doaj   +1 more source

Extension of HMM-Based ADL Recognition With Markov Chains of Activities and Activity Transition Cost

open access: yesIEEE Access, 2019
Ambient assisted living in smart home environments is becoming an important goal in an aging society with challenges in elderly care. A key component in such environments is the accurate recognition of activities of daily living from various sensor data.
Gregor Donaj, Mirjam Sepesy Maucec
doaj   +1 more source

The performance of drones and artificial intelligence for monitoring sage‐grouse at leks

open access: yesWildlife Biology, EarlyView.
Accurately monitoring sage‐grouse populations is critical for conservation, yet traditional ground‐based visual surveys face challenges in scalability and consistency, prompting the exploration of innovative drone‐based methodologies enhanced by artificial intelligence.
Lance B. McNew   +2 more
wiley   +1 more source

Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement

open access: yesGeophysical Monograph Series, Page 27-82., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm   +2 more
wiley  

+1 more source

Bayesian segmentation of hyperspectral images

open access: yes, 2007
In this paper we consider the problem of joint segmentation of hyperspectral images in the Bayesian framework. The proposed approach is based on a Hidden Markov Modeling (HMM) of the images with common segmentation, or equivalently with common hidden ...
Féron, Olivier   +2 more
core   +1 more source

The Evolution of Male Weapons Is Associated with the Type of Breeding Site in a Clade of Neotropical Frogs

open access: yesIntegrative Zoology, EarlyView.
Male weaponry evolution is often linked to male–male competition, but its relationship with breeding site type remains unclear. Using Leptodactylinae frogs, we found a macroevolutionary correlation between breeding site type and weapon evolution. Also, gains and losses of weapons occurred more frequently in exposed‐breeding sites, an unexpected finding.
Erika M. Santana   +3 more
wiley   +1 more source

Effects of postural intervention using a risshin chair on physical posture, class time perception, and subjective well‐being in junior high school students

open access: yesBritish Journal of Educational Psychology, EarlyView.
Abstract Background Research based on embodied cognition has demonstrated that physical posture, particularly an upright seated posture, can influence emotions and cognition. However, although students spend most of the day sitting in classrooms, intervention research on upright seated postures suitable for learning environments is limited.
Yusuke Murakami   +2 more
wiley   +1 more source

mritc: A Package for MRI Tissue Classification

open access: yesJournal of Statistical Software, 2011
This paper presents an R package for magnetic resonance imaging (MRI) tissue classification. The methods include using normal mixture models, hidden Markov normal mixture models, and a higher resolution hidden Markov normal mixture model fitted by ...
Luke Tierney, Dai Feng
doaj  

UTILIZING DISCRETE HIDDEN MARKOV MODELS TO ANALYZE TETRAPLOID PLANT BREEDING

open access: yesJurnal Matematika UNAND
In plant heredity, the phenotype is the result of observation that can be directly observed, while the genotype is the underlying hidden factor that underlies the expression of the phenotype.
Nahrul Hayati   +2 more
doaj   +1 more source

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

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