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Research Article
Agent Based Intelligent System for Enhanced Teamwork Performance
Issue:
Volume 10, Issue 2, June 2024
Pages:
18-25
Received:
3 April 2024
Accepted:
17 April 2024
Published:
10 May 2024
Abstract: It is impossible to overstate the necessity of a strategic and practical approach in the workplace in order to maximize productivity these days. Teamwork is one of the best ways to adapt to the changes that have occurred in today's environment throughout time. In every industry, the optimum performance arrangement for realizing visions, carrying out plans, and accomplishing objectives is teamwork. It is also one of the most crucial components of systems for continuous improvement since it makes information exchange, issue resolution, and the growth of employee accountability easier. Teams function as a grouping of people with complementary talents who work together rather than against one another. They are held accountable for their strategic methods and use them to achieve a shared objective. The Supervised Learning technique was used in this work to simulate team performance utilizing an intelligent coaching agent. Through the use of an automated performance assessment and weighted scores for each task, this study was able to create a system that will remove biases from performance evaluation. As soon as a worker does the task, they will obtain a score. The purpose of this study was to demonstrate an event-based performance approach by developing and utilizing an intelligent coaching agent in a supervised learning team training framework. The goal was successfully met, and the result shows positive impacts on the team's performance.
Abstract: It is impossible to overstate the necessity of a strategic and practical approach in the workplace in order to maximize productivity these days. Teamwork is one of the best ways to adapt to the changes that have occurred in today's environment throughout time. In every industry, the optimum performance arrangement for realizing visions, carrying ou...
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Research Article
Identification of MIMO Nonlinear Gaussian Time-Varying System Based on Multi-Dimensional Taylor Network Multi-Level Approximation
Jiefei Li
,
Shaolin Hu*
Issue:
Volume 10, Issue 2, June 2024
Pages:
26-37
Received:
25 June 2024
Accepted:
11 July 2024
Published:
29 July 2024
Abstract: Aiming at the problems of identification difficulties and low identification accuracy in modelling and identification of multiple-input multiple-output (MIMO) nonlinear Gaussian time-varying systems, this paper proposes an identification scheme based on the step-by-step approximation of multidimensional Taylor network (MTN). The aim of this paper is to improve the modelling of complex nonlinear systems so as to improve the prediction performance and control effect of the system. Different from the traditional multidimensional Taylor network identification method, this method adopts an order-by-order approximation strategy, which seeks its parameters sequentially from the lower order to the higher order, and continuously optimises the parameter weights during the parameter seeking process. Firstly, the nonlinear function model is approximated as a polynomial form by the order-by-order Taylor expansion, and then the weight parameters of each order of the Taylor expansion are calculated and updated step by step by using the algorithm based on the Variable Forgetting Factor Recursive Least Squares (VFF-RLS) method. Through iterative optimized of these parameters, dynamic weight assignment to each order of the Taylor expansion is achieved. A parameter-identified nonlinear function model is finally obtained, which can more accurately describe the dynamic behaviour and characteristics of the system. Finally, an arithmetic simulation is carried out through an example to verify the effectiveness of the proposed method.
Abstract: Aiming at the problems of identification difficulties and low identification accuracy in modelling and identification of multiple-input multiple-output (MIMO) nonlinear Gaussian time-varying systems, this paper proposes an identification scheme based on the step-by-step approximation of multidimensional Taylor network (MTN). The aim of this paper i...
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Research Article
A Sentiment Analysis of News Articles Published Before and During the COVID-19 Pandemic
Hugo Moises Montesinos-Yufa*,
Emily Musgrove
Issue:
Volume 10, Issue 2, June 2024
Pages:
38-44
Received:
4 July 2024
Accepted:
1 August 2024
Published:
27 August 2024
DOI:
10.11648/j.ijdst.20241002.13
Downloads:
Views:
Abstract: This study investigates the impact of the COVID-19 pandemic on the connotative language used in news articles, leveraging sentiment analysis to gauge shifts in societal attitudes and potential implications for mental health. Utilizing the statistical programming language R, we extracted and analyzed texts from 645 articles published before and during the pandemic by nine authors across three major U.S. newspapers: The Wall Street Journal, New York Times, and The Washington Post. Employing the AFINN and NRC sentiment lexicons, we observed a statistically significant decrease in sentiment during the pandemic period (p < 0.0001), suggesting a pervasive shift in media discourse. This decline, consistent across newspapers and journalists, highlights the profound impact of the pandemic on societal attitudes, reflecting the pain and stress experienced by many. Such a decline in sentiment can create a negative feedback loop that exacerbates the already significant health and behavioral challenges triggered by the pandemic and its associated mitigation measures. Our findings underscore the value of sentiment analysis and text mining in assessing the effects of high-stress, long-term events on global public health while identifying a gap in the existing literature that prioritizes disease-focused research over holistic well-being. This study highlights the critical role of journalists and leaders in shaping public sentiment during crises, advocating for early recognition of concerning trends. It also offers a valuable framework for future research connecting major events with the overall media sentiment and their subsequent effects on public health.
Abstract: This study investigates the impact of the COVID-19 pandemic on the connotative language used in news articles, leveraging sentiment analysis to gauge shifts in societal attitudes and potential implications for mental health. Utilizing the statistical programming language R, we extracted and analyzed texts from 645 articles published before and duri...
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