Results 21 to 30 of about 1,250,996 (142)

Controlled diffusion processes [PDF]

open access: yes, 2005
This article gives an overview of the developments in controlled diffusion processes, emphasizing key results regarding existence of optimal controls and their characterization via dynamic programming for a variety of cost criteria and structural ...
Borkar, Vivek S.
core   +1 more source

NA‐Reviewer: Reviewing the context to improve the error accumulation issue for multi‐hop QA

open access: yesElectronics Letters, 2022
The multi‐hop question answering (QA) task requires the machine to answer the question correctly and at the same time provide evidence clues. Some pipeline methods have achieved great results in answer accuracy and interpretability, while a obvious ...
Ruiliu Fu   +3 more
doaj   +1 more source

A deep neural network based method for magnetic anomaly detection

open access: yesIET Science, Measurement & Technology, 2022
Magnetic anomaly detection (MAD) is a technique to find ferromagnets hiding in strong and complicated magnetic background. In many practical cases, the targets are very far from the detection sensor, which leads to low signal‐to‐noise ratio (SNR) and ...
Yizhen Wang   +5 more
doaj   +1 more source

A Quasi open‐loop robust three‐phase grid‐synchronization technique for non‐ideal grid

open access: yesIET Generation, Transmission & Distribution, 2021
Development of advanced grid‐synchronization technique for unbalanced and distorted grid is considered in this paper. In this context, self‐tuning filter (STF) is considered to extract the fundamental component from the measured unbalanced and distorted ...
Hafiz Ahmed   +2 more
doaj   +1 more source

Non stationary‐ARMA flicker model for squirrel cage induction generators based wind farms

open access: yesIET Renewable Power Generation, 2021
Time varying nature of the wind power is studied previously considering different time intervals from seconds to days. However for power quality problems such as flicker, a model which considers the extremely fast variations is essential.
Haidar Samet   +2 more
doaj   +1 more source

Object recognition for power equipment via human‐level concept learning

open access: yesIET Generation, Transmission & Distribution, 2021
Inspection robots are popularized in substations due to the lack of personnel for operation and maintenance. However, these inspection robots remain at the level of perceptual intelligence, rather than cognition intelligence.
Siheng Xiong   +6 more
doaj   +1 more source

Lyapunov optimization machine learning resource allocation approach for uplink underlaid D2D communication in 5G networks

open access: yesIET Communications, 2022
Device‐to‐device (D2D) communication plays a vital role in communication technologies with resource management and power control, which are the major issues for researchers in the era of 2020.
Krishna Pandey, Rajeev Arya
doaj   +1 more source

Complex multitask compressive sensing using Laplace priors

open access: yesElectronics Letters, 2021
Most existing Bayesian compressive sensing (BCS) algorithms are developed in real numbers. This results in many difficulties in applying BCS to solve complex‐valued problems.
Qilei Zhang, Zhen Dong, Yongsheng Zhang
doaj   +1 more source

Statistical multivariate monitoring of rolling bearings working under varying operational conditions

open access: yesIET Science, Measurement & Technology, 2021
In recent years, statistical data‐driven approaches have been developed for health monitoring of rolling bearings working under variable operational conditions.
Baoxiang Wang, Hongxia Pan
doaj   +1 more source

Accurate partial discharge localisation using a multi‐deep neural network model trained with a novel virtual measurement method

open access: yesIET Science, Measurement & Technology, 2021
Time difference of arrival‐based localisation method has been extensively used by researchers for the partial discharge (PD) diagnosis despite being time‐inefficient and sensitive to time delay estimation.
Atta Ul Munim Zaki   +2 more
doaj   +1 more source

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