Fine-Tuning Group Collaboration Environments: How Differences in General Causality Orientation and Performance Targets Shape Interaction and Performance

2012 ◽  
Author(s):  
Xuequn Wang ◽  
Christoph Schneider ◽  
Joseph S. Valacich
Keyword(s):  
Fine Tuning ◽  
Group Collaboration ◽  
Performance Targets ◽  
And Performance

scholarly journals Attitudinal Factors Affecting Wiki Group Collaboration for English Writing

2015 ◽  
Vol 18 (2) ◽  
pp. 22-35 ◽  
Author(s):  
Chwen Jen Chen ◽  
Kee Man Chuah ◽  
Jimmy Tho ◽  
Chee Siong Teh
Keyword(s):  
Language Learning ◽  
Foreign Language Learning ◽  
Ease Of Use ◽  
Perceived Usefulness ◽  
Perceived Ease Of Use ◽  
Factors Affecting ◽  
Group Collaboration ◽  
Construction Joint ◽  
Attitudinal Factors ◽  
And Performance

Abstract Wikis, being one of the popular Web 2.0 tools, have impacted students’ engagement and performance particularly in the aspects of second and foreign language learning. While an increasing number of studies have focused on the effectiveness of wiki in improving students’ writing skills, this study was conducted to examine the attitudinal factors that influence English as a Second Language (ESL) students’ group collaboration in using wikis for a writing task that was divided into three phases: pre-writing, individual-construction, joint-constructions. Data collected from these students after completing this task was analyzed based on three attitudinal aspects: motivation, perceived usefulness, and perceived ease of use. The findings reveal high mean scores for all aspects. Further multiple regression analysis reveals that motivation is the most important factor associated with group collaboration, indicating the need to boost students’ motivation to encourage effective collaboration in completing wiki writing tasks.

scholarly journals ИСПОЛЬЗОВАНИЕ ТЕОРИИ НЕЧЕТКИХ МНОЖЕСТВ В ЭКОНОМИЧЕСКОМ АНАЛИЗЕ ИНВЕСТИЦИОННЫХ ПРОЕКТОВ

2018 ◽  
Vol 2 (5(17)) ◽  
pp. 44-48
Author(s):  
Файзиев Р. А. ◽  
Хаитматов У. Т. ◽  
Азаматов О. Х. ◽  
Джуманиязов Ш. Р. ◽  
Хасанова Х. Х.
Keyword(s):  
Integral Characteristic ◽  
Mathematical Methods ◽  
Investment Projects ◽  
Performance Targets ◽  
Methods Of Evaluation ◽  
Interval Approach ◽  
And Performance ◽  
The Cost ◽  
Fuzzy Interval ◽  
Theory Of Fuzzy Sets

The article outlines the main features of the use of the theory of indefinite bundles in the evaluation of the cost-effectiveness of investment projects.He analysis of methods for quantifying the effectiveness of the IP under uncertainty suggests that the existing methods either eliminate the uncertainty from the IP model, which is inappropriate, since uncertainty is an integral characteristic of any forecast, or are unable to formally describe, and take into account all possible varieties of types of uncertainty.Methods based on the theory of fuzzy sets refer to the methods of evaluation and decision-making under conditions of uncertainty. Their use implies the formalization of the initial parameters and performance targets of the IP in the form of a vector of interval values (fuzzy interval), the hit in each interval of which is characterized by a certain degree of uncertainty.Also, the fuzzy-interval approach has advantages in solving the problems of forming an optimal portfolio of investment projects. To solve the problem of forming an optimal IP portfolio, a large number of models for the formation of an optimal IP portfolio have been developed, differing from each other in the form of objective functions, variable properties, used by mathematical methods, and uncertainty.

scholarly journals Proposal and Performance Evaluation of a Magneto-Striction Type Torque Sensor Consisting of Small-Sized Coils Connected in Series

2012 ◽  
Vol 2012 ◽  
pp. 1-8 ◽  
Author(s):  
Takahiko Tsujisawa ◽  
Kazuhiro Yamakawa
Keyword(s):  
Performance Evaluation ◽  
Response Time ◽  
Detection Method ◽  
Torque Sensor ◽  
Detection Range ◽  
Performance Targets ◽  
Sensor Drift ◽  
In Series ◽  
Target Performance ◽  
And Performance

We propose a sensor consisting of small-sized coils connected in series and a detection method for the sensor based on the iteration of the periodic time difference. The evaluation results are also presented and show the effectiveness of the proposed system. The target performance of the sensor is as follows: (i) a detection range from 0 to ±100 Nm, (ii) a hysteresis error of less than 1%, (iii) an angular-dependent noise of less than 2%, and (iv) a sensor drift of less than 2%. From the evaluation results, it is clear that these performance targets, as well as a sufficient response time, are realized.

scholarly journals What 5G has been and what should 5G+ be?

2021 ◽  
Vol 8 (1) ◽  
pp. 27-38
Author(s):  
Zoran Bojkovic ◽  
Dragorad Milovanovic ◽  
Tulsi Pawan Fowdur ◽  
Mussawir Ahmad Hosany
Keyword(s):  
Mobile Networks ◽  
Mobile Communications ◽  
Performance Enhancement ◽  
Performance Targets ◽  
Technology Roadmap ◽  
Industrial Organizations ◽  
Gradual Evolution ◽  
5G Network ◽  
And Performance ◽  
Two Stages

In this work we aim to provide a comprehensive summary of the most inspiring aspects of 5G mobile networks. In addition, we present the latest findings on the promising 6G technology towards a world of fully digital connectivity. The key determinants are extreme system performance and combinations of requirements for new use cases. We study new performance targets beyond 5G in two stages: 5G+ evolution and new 6G step. Relevant technologies considered too immature for 5G or outside the defined scope are outlined. To justify our vision of future mobile networks, we point out the need for closer collaborations of academia, standardizing bodies, industrial organizations and governments. The contribution strategy is gradual evolution and performance enhancement of mobile communications. Finally, we identify challenges and directions on network technology roadmap toward 6G. Keywords: wireless communication, mobile broadband, low-latency communi-cation, 5G network, 3GPP, 6G vision

The Volkswagen Emissions Scandal

2016 ◽  
pp. 1-17
Author(s):  
Luann J. Lynch ◽  
Almand R. Coleman ◽  
Cameron Cutro ◽  
Cameron Cutro
Keyword(s):  
United States ◽  
Environmental Protection ◽  
Environmental Protection Agency ◽  
Protection Agency ◽  
Top Executives ◽  
Performance Targets ◽  
The World ◽  
Hazardous Gases ◽  
And Performance ◽  
The U.S

In September 2015, VW had admitted to United States regulators that it had deliberately installed “defeat devices” in many of its diesel cars, which enabled the cars to cheat on federal and state emissions tests, making them able to pass the tests and hit ambitious mileage and performance targets while actually emitting up to 40 times more hazardous gases into the atmosphere than legally allowed. The discovery had prompted the U.S. Environmental Protection Agency (EPA) to halt final certification of VW’s 2016 diesel models, and VW itself had halted sales of its 2015 models. As fallout from the defeat devices developed, VW posted its first quarterly loss in more than 15 years, and its stock plummeted. Top executives were replaced, and VW abandoned its goal of becoming the world’s largest automaker. Stakeholders around the world had been asking since the scandal broke: “How could this have happened at Volkswagen?”

Juggling With Both Hands Tied Behind My Back: Teachers’ Views and Experiences of the Tensions Between Student Well-Being Concerns and Academic Performance Improvement Agendas

2019 ◽  
Vol 56 (6) ◽  
pp. 2644-2673 ◽  
Author(s):  
Alison Willis ◽  
Mervyn Hyde ◽  
Ali Black
Keyword(s):  
Mental Health ◽  
Performance Improvement ◽  
Secondary School Teachers ◽  
Well Being ◽  
Health Issues ◽  
Academic Improvement ◽  
Performance Targets ◽  
Australian State ◽  
And Performance ◽  
Primary And Secondary School

Youth mental health in Australia is concerning with 25% of young people reported as experiencing mental health issues in a 12-month period. Meanwhile, Australian schools march forward with academic improvement agendas. Survey research conducted among primary and secondary school teachers, most drawn from the Australian state of Queensland, revealed that although teachers value student well-being initiatives, they are experiencing very real tensions dealing with student mental health concerns and performance targets, which is complicated by a lack of confidence in the efficacy of well-being programs in schools. These findings raise concerns about the need for government authorities, school leaders, and teacher education providers to further investigate the need for balance between school performance improvement agendas and student well-being concerns.

Multi-Objective Engineering Design Via Computer Model Calibration

2020 ◽  
Vol 143 (5) ◽  
Author(s):  
Carl Ehrett ◽  
D. Andrew Brown ◽  
Evan Chodora ◽  
Christopher Kitchens ◽  
Sez Atamturktur
Keyword(s):  
Computer Model ◽  
Model Calibration ◽  
Material Design ◽  
Fine Tuning ◽  
Tuning Parameter ◽  
Design Problems ◽  
Multi Objective ◽  
Performance Targets ◽  
Calibration Techniques ◽  
Parameter Values

Abstract Computer model calibration typically operates by fine-tuning parameter values in a computer model so that the model output faithfully predicts reality. By using performance targets in place of observed data, we show that calibration techniques can be repurposed for solving multi-objective design problems. Our approach allows us to consider all relevant sources of uncertainty as an integral part of the design process. We demonstrate our proposed approach through both simulation and fine-tuning material design settings to meet performance targets for a wind turbine blade.

scholarly journals Integration and Evaluation of QUIC and TCP-BBR in longhaul Science Data Transfers

2019 ◽  
Vol 214 ◽  
pp. 08026 ◽  
Author(s):  
Raul H. C. Lopes ◽  
Virginia N. L. Franqueira ◽  
Duncan Rand
Keyword(s):  
Data Science ◽  
Perfect Match ◽  
The Other ◽  
Fine Tuning ◽  
The Internet ◽  
Science Data ◽  
Internet Protocols ◽  
Real Possibility ◽  
Data Transfers ◽  
And Performance

Two recent and promising additions to the internet protocols are TCP-BBR and QUIC. BBR defines a congestion policy that promises a better control in TCP bottlenecks on long haul transfers and can also be used in the QUIC protocol. TCP-BBR is implemented in the Linux kernels above 4.9. It has been shown, however, to demand careful fine tuning in the interaction, for example, with the Linux Fair Queue. QUIC, on the other hand, replaces HTTP and TLS with a protocol on the top of UDP and thin layer to serve HTTP. It has been reported to account today for 7% of Google’s traffic. It has not been used in server-to-server transfers even if its creators see that as a real possibility. Our work evaluates the applicability and tuning of TCP-BBR and QUIC for data science transfers. We describe the deployment and performance evaluation of TCP-BBR and comparison with CUBIC and H-TCP in transfers through the TEIN link to Singaren (Singapore). Also described is the deployment and initial evaluation of a QUIC server. We argue that QUIC might be a perfect match in security and connectivity to base services that are today performed by the Xroot redirectors.

Sign in / Sign up

Export Citation Format

Share Document