Real-time multi-class signal quality assessment of photoplethysmography using machine learning technique

2021 ◽  
Author(s):  
Pratyush Prasun ◽  
Sumitra Mukhopadhyay ◽  
Rajarshi Gupta
Keyword(s):  
Machine Learning ◽  
Quality Assessment ◽  
Real Time ◽  
Signal Quality ◽  
Machine Learning Technique ◽  
Learning Technique

scholarly journals Evaluation of the COVID-19 Era by Using Machine Learning and Interpretation of Confidential Dataset

Electronics ◽  
2021 ◽  
Vol 10 (23) ◽  
pp. 2910
Author(s):  
Andreas Andreou ◽  
Constandinos X. Mavromoustakis ◽  
George Mastorakis ◽  
Jordi Mongay Batalla ◽  
Evangelos Pallis
Keyword(s):  
Machine Learning ◽  
Real Time ◽  
Research Study ◽  
Nonlinear Least Squares ◽  
Data Driven ◽  
Machine Learning Technique ◽  
Marquardt Algorithm ◽  
Learning Technique ◽  
Iot Devices ◽  
Algorithmic Techniques

Various research approaches to COVID-19 are currently being developed by machine learning (ML) techniques and edge computing, either in the sense of identifying virus molecules or in anticipating the risk analysis of the spread of COVID-19. Consequently, these orientations are elaborating datasets that derive either from WHO, through the respective website and research portals, or from data generated in real-time from the healthcare system. The implementation of data analysis, modelling and prediction processing is performed through multiple algorithmic techniques. The lack of these techniques to generate predictions with accuracy motivates us to proceed with this research study, which elaborates an existing machine learning technique and achieves valuable forecasts by modification. More specifically, this study modifies the Levenberg–Marquardt algorithm, which is commonly beneficial for approaching solutions to nonlinear least squares problems, endorses the acquisition of data driven from IoT devices and analyses these data via cloud computing to generate foresight about the progress of the outbreak in real-time environments. Hence, we enhance the optimization of the trend line that interprets these data. Therefore, we introduce this framework in conjunction with a novel encryption process that we are proposing for the datasets and the implementation of mortality predictions.

scholarly journals No-Reference Stereoscopic Image Quality Assessment Based on Binocular Statistical Features and Machine Learning

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Peng Xu ◽  
Man Guo ◽  
Lei Chen ◽  
Weifeng Hu ◽  
Qingshan Chen ◽  
...  
Keyword(s):  
Machine Learning ◽  
Image Quality ◽  
Quality Assessment ◽  
Statistical Features ◽  
Statistical Regression ◽  
Stereoscopic Image ◽  
Machine Learning Technique ◽  
Stereoscopic Images ◽  
Structure Representation ◽  
Learning Technique

Learning a deep structure representation for complex information networks is a vital research area, and assessing the quality of stereoscopic images or videos is challenging due to complex 3D quality factors. In this paper, we explore how to extract effective features to enhance the prediction accuracy of perceptual quality assessment. Inspired by the structure representation of the human visual system and the machine learning technique, we propose a no-reference quality assessment scheme for stereoscopic images. More specifically, the statistical features of the gradient magnitude and Laplacian of Gaussian responses are extracted to form binocular quality-predictive features. After feature extraction, these features of distorted stereoscopic image and its human perceptual score are used to construct a statistical regression model with the machine learning technique. Experimental results on the benchmark databases show that the proposed model generates image quality prediction well correlated with the human visual perception and delivers highly competitive performance with the typical and representative methods. The proposed scheme can be further applied to the real-world applications on video broadcasting and 3D multimedia industry.

Interactive Learning of Timbral Rhythms for Percussion Robots

2018 ◽  
Vol 42 (2) ◽  
pp. 35-51 ◽  
Author(s):  
Michael Krzyzaniak
Keyword(s):  
Machine Learning ◽  
Real Time ◽  
Interactive Learning ◽  
Machine Learning Technique ◽  
Human Partner ◽  
Learning Technique ◽  
Improvised Music ◽  
Time Observation ◽  
Real Time Observation

This article presents a machine-learning technique to analyze and produce statistical patterns in rhythm through real-time observation of human musicians. Here, timbre is considered an integral part of rhythm, as might be exemplified by hand-drum music. Moreover, this article considers challenges (such as mechanical timing delays, that are negligible in digitally synthesized music) that arise when the algorithm is executed on percussion robots. The algorithm's performance is analyzed in a variety of contexts, such as learning specific rhythms, learning a corpus of rhythms, responding to signal rhythms that signal musical transitions, improvising in different ways with a human partner, and matching the meter and the “syncopicity” of improvised music.

scholarly journals Predicting On-Axis Rotorcraft Dynamic Responses Using Machine Learning Techniques

2019 ◽  
Author(s):  
Ryan Jackson ◽  
Michael Jump ◽  
Peter Green
Keyword(s):  
Machine Learning ◽  
Dynamic Response ◽  
Real Time ◽  
Computational Cost ◽  
Dynamic Responses ◽  
Training Data ◽  
Machine Learning Techniques ◽  
Machine Learning Technique ◽  
Learning Technique ◽  
Gp Model

Physical-law based models are widely utilized in the aerospace industry. One such use is to provide flight dynamics models for use in flight simulators. For human-in-the-loop use, such simulators must run in real-time. Due to the complex physics of rotorcraft flight, to meet this real-time requirement, simplifications to the underlying physics sometimes have to be applied to the model, leading to model response errors in the predictions compared to the real vehicle. This study investigated whether a machine-learning technique could be employed to provide rotorcraft dynamic response predictions, with the ultimate aim of this model taking over when the physics-based model's accuracy degrades. In the current work, a machine-learning technique was employed to train a model to predict the dynamic response of a rotorcraft. Machine learning was facilitated using a Gaussian Process (GP) non-linear autoregressive model, which predicted the on-axis pitch rate, roll rate, yaw rate and heave responses of a Bo105 rotorcraft. A variational sparse GP model was then developed to reduce the computational cost of implementing the approach on large data sets. It was found that both of the GP models were able to provide accurate on-axis response predictions, particularly when the input contained all four control inceptors and one lagged on-axis response term. The predictions made showed improvement compared to a corresponding physics-based model. The reduction of training data to one-third (rotational axes) or one-half (heave axis) resulted in only minor degradation of the GP model predictions.

scholarly journals Real-time Estimation of Global CFR Ascribed to COVID-19 Confirmed Cases Applying Machine Learning Technique

2021 ◽  
Author(s):  
MONALISHA PATTNAIK ◽  
ARYAN PATTNAIK
Keyword(s):  
Machine Learning ◽  
Real Time ◽  
Regression Tree ◽  
Time Estimation ◽  
World Health Organisation ◽  
World Health ◽  
Global Risk ◽  
Machine Learning Technique ◽  
Learning Technique ◽  
Real Time Estimation

The COVID-19 is declared as a public health emergency of global concern by World Health Organisation (WHO) affecting a total of 201 countries across the globe during the period December 2019 to January 2021. As of January 25, 2021, it has caused a pandemic outbreak with more than 99 million confirmed cases and more than 2 million deaths worldwide. The crisp of this paper is to estimate the global risk in terms of CFR of the COVID-19 pandemic for seventy deeply affected countries. An optimal regression tree algorithm under machine learning technique is applied which identified four significant features like diabetes prevalence, total number of deaths in thousands, total number of confirmed cases in thousands, and hospital beds per 1000 out of fifteen input features. This real-time estimation will provide deep insights into the early detection of CFR for the countries under study.

scholarly journals Heuristic Prediction of Crop Yield using Machine Learning Technique

2019 ◽  
Vol 9 (1S3) ◽  
pp. 135-138
Keyword(s):  
Machine Learning ◽  
Soil Moisture ◽  
Real Time ◽  
Crop Yield ◽  
Environmental Parameters ◽  
Agricultural Field ◽  
Machine Learning Technique ◽  
The Real ◽  
Learning Technique ◽  
Farm Produce

Vast research has been done and several attempts are made for application of Machine learning in agricultural field. Major challenge in agriculture is to increase the production in the farm and deliver it to the end customers with best possible price and good quality. It is found that at least 50 percent of the farm produce never reach the end consumer due to wastage and high-end prices. Machine learning based solutions developed to solve the difficulties faced by the farmers are being discussed in this work. The real time environmental parameters of Telangana District like soil moisture, temperature, rainfall, humidity are collected and crop yield is being predicted using KNN Algorithm.

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