Results 11 to 20 of about 3,453 (181)

Ringed Seal (Pusa hispida) Haul-Out Behavior and Emergence Timing in the Bering, Chukchi, and Beaufort Seas. [PDF]

open access: yesEcol Evol
In the spring, ringed seals (Pusa hispida) shift from predominantly hauling out in lairs to predominantly hauling out on the surface of the sea ice to bask and molt, a transition we refer to as “emergence.” We used hidden Markov models (HMMs) to analyze haul‐out timelines from satellite‐linked transmitters to estimate emergence dates of ringed seals ...
Lindsay JM   +6 more
europepmc   +2 more sources

Performance of Soft Viterbi Decoder enhanced with Non-Transmittable Codewords for storage media

open access: yesCogent Engineering, 2018
The introduction of Non-Transmittable Codewords (NTCs) into Viterbi Algorithm Decoder has emerged as one of the best ways of improving performance of the Viterbi Algorithm Decoder.
Kilavo Hassan   +2 more
doaj   +1 more source

Analytical Investigations on Carrier Phase Recovery in Dispersion-Unmanaged n-PSK Coherent Optical Communication Systems

open access: yesPhotonics, 2016
Using coherent optical detection and digital signal processing, laser phase noise and equalization enhanced phase noise can be effectively mitigated using the feed-forward and feed-back carrier phase recovery approaches.
Tianhua Xu   +6 more
doaj   +1 more source

Exploring the protein universe with distant similarity detection methods. [PDF]

open access: yesProtein Sci
Abstract During the last few years, the body of data on proteins is expanding almost exponentially with the development of advanced methods for gene sequencing, protein structure determination, particularly by cryoelectron microscopy, and structure prediction using artificial intelligence‐based approaches.
Sahakyan H   +3 more
europepmc   +2 more sources

Online Spatiotemporally Constrained Reconstruction for Real-Time Interactive MRI. [PDF]

open access: yesMagn Reson Med
ABSTRACT Purpose To develop a low‐latency dynamic MRI reconstruction that provides better spatial and temporal fidelity than contemporary online reconstruction, for localization. Methods We utilize online spatiotemporally constrained reconstruction (STCR) using a computationally efficient augmented Lagrangian solution and a limited number of iterations
Le DH   +4 more
europepmc   +2 more sources

Customer active power consumption prediction for the next day based on historical profile

open access: yesAdvances in Computing and Engineering, 2022
Energy consumption prediction application is one of the most important fieldsthat is artificially controlled with Artificial Intelligence technologies to maintainaccuracy for electricity market costs reduction.
Ahmad A. Goudah   +3 more
doaj   +1 more source

Exon prediction on DNA-genes of Plasmodium falciparum based on coding sequence structure using hidden Markov model

open access: yesUniversa Medicina, 2007
BACKGROUND A hidden Markov model (HMM) is used for exon prediction on DNA of genes Plasmodium falciparum that has a model structure based on exon region structure in coding sequence (CDS).
Suhartanti Agoes   +3 more
doaj   +1 more source

Advanced Real-Time Indoor Tracking Based on the Viterbi Algorithm and Semantic Data

open access: yesInternational Journal of Distributed Sensor Networks, 2015
A real-time indoor tracking system based on the Viterbi algorithm is developed. This Viterbi principle is used in combination with semantic data to improve the accuracy, that is, the environment of the object that is being tracked and a motion model. The
Jens Trogh   +3 more
doaj   +1 more source

A Soft-Output STBC Decoder for Aeronautical Telemetry

open access: yesJournal of Telecommunications and Information Technology, 2020
Alamouti encoding is a well-known space time block encoding technique used to improve the received signal quality in Rayleigh fading channels. In aeronautical telemetry, this encoding technique is applied to shaped offset quadrature phase shift keying ...
Yves Louet   +2 more
doaj   +1 more source

High performance ACS for Viterbi decoder using pipeline T-Algorithm

open access: yesAlexandria Engineering Journal, 2015
Viterbi algorithm is the most popular algorithm used to decode the convolution code, but its computational complexity increases exponentially with the increasing constraint length due to the large number of Trellis transitions.
D. Vaithiyanathan   +2 more
doaj   +1 more source

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