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Preprocessing under uncertainty [PDF]

open access: yes, 2015
In this work we study preprocessing for tractable problems when part of the input is unknown or uncertain. This comes up naturally if, e.g., the load of some machines or the congestion of some roads is not known far enough in advance, or if we have to ...
Fafianie, Stefan   +2 more
core   +5 more sources

A Two-Step Data Normalization Approach for Improving Classification Accuracy in the Medical Diagnosis Domain

open access: yesMathematics, 2022
Data normalization is a data preprocessing task and one of the first to be performed during intellectual analysis, particularly in the case of tabular data.
Ivan Izonin   +4 more
doaj   +1 more source

One-Dimensional Shallow Neural Network Using Non-Fiducial Based Segmented Electrocardiogram for User Identification System

open access: yesIEEE Access, 2023
Recent user recognition technologies have focused on biometric signals to remotely identify users in the access management, medical welfare, and public sectors.
Yejin Kim, Gyuho Choi, Chang Choi
doaj   +1 more source

The Impact of Linear Filter Preprocessing in the Interpretation of Permutation Entropy

open access: yesEntropy, 2021
Permutation Entropy (PE) is a powerful tool for measuring the amount of information contained within a time series. However, this technique is rarely applied directly on raw signals.
Antonio Dávalos   +3 more
doaj   +1 more source

An efficient recurrent neural network with ensemble classifier-based weighted model for disease prediction

open access: yesJournal of Intelligent Systems, 2022
Day-to-day lives are affected globally by the epidemic coronavirus 2019. With an increasing number of positive cases, India has now become a highly affected country.
Kesavan Tamilselvi   +1 more
doaj   +1 more source

Sentinel-1 SAR Backscatter Analysis Ready Data Preparation in Google Earth Engine

open access: yesRemote Sensing, 2021
Sentinel-1 satellites provide temporally dense and high spatial resolution synthetic aperture radar (SAR) imagery. The open data policy and global coverage of Sentinel-1 make it a valuable data source for a wide range of SAR-based applications.
Adugna Mullissa   +7 more
doaj   +1 more source

Repairing Artifacts in Neural Activity Recordings Using Low-Rank Matrix Estimation

open access: yesSensors, 2023
Electrophysiology recordings are frequently affected by artifacts (e.g., subject motion or eye movements), which reduces the number of available trials and affects the statistical power.
Shruti Naik   +2 more
doaj   +1 more source

Histogram Adjustment of Images for Improving Photogrammetric Reconstruction

open access: yesSensors, 2021
The accuracy of photogrammetric reconstruction depends largely on the acquisition conditions and on the quality of input photographs. This paper proposes methods of improving raster images that increase photogrammetric reconstruction accuracy.
Piotr Łabędź   +3 more
doaj   +1 more source

A Comprehensive Review of Speech Emotion Recognition Systems

open access: yesIEEE Access, 2021
During the last decade, Speech Emotion Recognition (SER) has emerged as an integral component within Human-computer Interaction (HCI) and other high-end speech processing systems.
Taiba Majid Wani   +4 more
doaj   +1 more source

PRE-PROCESSING OF SIGNAL IN RECOGNITION OF VOICE COMMANDS BY METHOD OF IMPROVED COMPLETE MULTIPLE DECOMPOSITION TO EMPIRICAL MODES

open access: yesИзмерение, мониторинг, управление, контроль, 2022
Background. In the recognition of speech signals to work in various spheres of human life, the developer has to solve the problem of processing of speech signals, in particular the problem of non-stationarity.
V.V. Kozlov, E.A. Fokina, A.A. Trofimov
doaj   +1 more source

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