scholarly journals Modeling and simulating durations of men’s professional tennis matches by resampling match features

2021 ◽  
pp. 1-19
Author(s):  
Francesco Lisi ◽  
Matteo Grigoletto
Keyword(s):  
Case Studies ◽  
Goodness Of Fit ◽  
Good Description ◽  
Distinctive Features ◽  
The Real ◽  
Real Distribution ◽  
Rule Changes ◽  
Professional Tennis ◽  
The Impact ◽  
Tennis Match

In this paper we analyze the factors impacting on the length of a men’s professional tennis match and propose a model to simulate matches’ durations. Two distinctive features of the model are that i) it considers all kinds of events that impact on the duration of a match and ii) it is based only on publicly available data. Once built, the model allows to analyze the impact of different formats or rule changes on matches’ duration. The model is built and validated using a dataset including 19,961 matches played in the period January 2011 – December 2018. The simulated and observed distributions of the durations are compared with an in-depth goodness-of-fit analysis. This points out that the model provides a good description of the real distribution both in the central part and in the tails. We also show that our model improves similar models present in the literature. Finally, several case studies are analyzed: the effect of abolishing the first service or the advantages or both; the new tie-break format at Wimbledon; and the introduction of fifth set tie-break at Roland Garros.

The Impact of Enterprise Systems on Business Value

2011 ◽  
pp. 1233-1246
Author(s):  
Sanjay Mathrani ◽  
Mohammad A. Rashid ◽  
Dennis Viehland
Keyword(s):  
Decision Making ◽  
Case Studies ◽  
Business Processes ◽  
Enterprise Systems ◽  
Business Value ◽  
The Real ◽  
Organizational Functions ◽  
Decision Making Processes ◽  
The Impact

A significant investment in resources is required for implementation of integrated enterprise systems as technology solutions while the effectiveness of these systems to achieve business value remains unclear and empirically largely unexplored. Enterprise systems integrate and automate business processes, but unarguably, the real business value can only be achieved from improvements through the transformation of enterprise systems data into knowledge by applying analytic and decision making processes. This study explores a model of transforming ES data into knowledge and results by comparing two case studies that examine the impact of enterprise systems information on organizational functions and processes leading to realization of business value.

The Impact of Enterprise Systems on Business Value

2009 ◽  
pp. 119-133
Author(s):  
Sanjay Mathrani ◽  
Mohammad A. Rashid ◽  
Dennis Viehland
Keyword(s):  
Decision Making ◽  
Case Studies ◽  
Business Processes ◽  
Enterprise Systems ◽  
Business Value ◽  
The Real ◽  
Organizational Functions ◽  
Decision Making Processes ◽  
The Impact

A significant investment in resources is required for implementation of integrated enterprise systems as technology solutions while the effectiveness of these systems to achieve business value remains unclear and empirically largely unexplored. Enterprise systems integrate and automate business processes, but unarguably, the real business value can only be achieved from improvements through the transformation of enterprise systems data into knowledge by applying analytic and decision making processes. This study explores a model of transforming ES data into knowledge and results by comparing two case studies that examine the impact of enterprise systems information on organizational functions and processes leading to realization of business value.

The Dawn of Walkability

2020 ◽  
pp. 98-114
Author(s):  
Mohamed Abedo ◽  
Mohamed Salheen ◽  
Abeer Elshater
Keyword(s):  
Case Studies ◽  
Vital Role ◽  
Future Research ◽  
Global Integration ◽  
Urban Fabric ◽  
Distinctive Features ◽  
Street Networks ◽  
Gate Count ◽  
Spatial Configurations ◽  
The Impact

This explanatory research investigates the impact of configurations in the urban fabric on walkability regarding connectivity and global integration. This study aims to examine this effect by comparing street networks in two residential neighbourhoods in Heliopolis and New Cairo cities. The research methods use DepthMapX and Walk Score to provide relative indicators about distinctive features that enhance the walkability in the case studies. The results show significant differences between the walkability patterns and pedestrians gate counts in two case studies. In study areas, the pedestrian gate count, connectivity, and global integration give signs about people interactions during the day time. The findings figured out that the spatial configurations of street networks—that create urban fabric—play a vital role in enhancing the walkability. The possibility of simulation, to a great extent, can investigate other cases in future research with real situations on the ground. The results confirm a worthy choice for the space syntax technique as a predictor in analysing walkability.

TEACH-POT: Provide Opportunities in Teaching

2020 ◽  
pp. 79-91 ◽  
Author(s):  
Maria Giulia Ballatore ◽  
Ettore Felisatti ◽  
Laura Montanaro ◽  
Anita Tabacco
Keyword(s):  
Academic Community ◽  
Real Effect ◽  
The Real ◽  
Main Components ◽  
The Impact ◽  
Training Opportunities ◽  
Different Levels

This paper is aimed to describe and critically analyze the so-called "TEACHPOT" experience (POT: Provide Opportunities in Teaching) performed during the last few years at Politecnico di Torino. Due to career criteria, the effort and the time lecturers spend in teaching have currently undergone a significant reduction in quantity. In order to support and meet each lecturers' expectations towards an improvement in their ability to teach, a mix of training opportunities has been provided. This consists of an extremely wide variety of experiences, tools, relationships, from which everyone can feel inspired to increase the effectiveness of their teaching and the participation of their students. The provided activities are designed around three main components: methodological training, teaching technologies, methodological experiences. A discussion on the findings is included and presented basing on the data collected through a survey. The impact of the overall experience can be evaluated on two different levels: the real effect on redesigning lessons, and the discussion on the matter within the entire academic community.

The Impact of Inflation Measures on the Real Returns and Risk of U.S. Stocks

CFA Digest ◽  
2006 ◽  
Vol 36 (3) ◽  
pp. 36-37
Author(s):  
Brendan F. O'Connell
Keyword(s):  
The Real ◽  
Real Returns ◽  
The Impact

Reducing the Risks of the Financial Sector to Ensure Sustainable Growth of the Russian Еconomy

2019 ◽  
Vol 12 (3) ◽  
pp. 86-92
Author(s):  
T. I. Minina ◽  
V. V. Skalkin
Keyword(s):  
Economic Growth ◽  
Monetary Policy ◽  
Financial Sector ◽  
Developed Countries ◽  
Sustainable Growth ◽  
Necessary Condition ◽  
Real Sector ◽  
Financial Instruments ◽  
The Real ◽  
The Impact

Russia’s entry into the top five economies of the world depends, among other things, on the development of the financial sector, being a necessary condition for the economic growth of a developed macroeconomic and macro-financial system. The financial sector represents a system of relationships for the effective collection and distribution of economic resources, their deployment according to public demand, reducing the risk of overproduction and overheating of the economy.Therefore, the subject of the research is the financial sector of the Russian economy.The purpose of the research was to formulate an approach to alleviating the risks of increasing financial costs in the real sector of the economy by reducing the impact of endogenous risks expressed as financial asset “bubbles” using the experience of developed countries in the monetary policy.The paper analyzes a macroeconomic model applied to the financial sector. It is established that the economic growth is determined by the growth and, more important, the qualitative development of the financial sector, which leads to two phenomena: overproduction in the real sector and an increase in asset prices in the financial sector, with a debt load in both the real and financial sectors. This results in decreasing the interest rate of the mega-regulator to near-zero values. In this case, since the mechanisms of the conventional monetary policy do not work, the unconventional monetary policy is used when the mega-regulator buys out derivative financial instruments from systemically important institutions. As a conclusion, given deflationally low rates, it is proposed that the megaregulator should issue its own derivative financial instruments and place them in the financial market.

Structural Model of Service Quality Factors Affecting Loyalty Sustainability

2020 ◽  
Vol 11 (2) ◽  
Author(s):  
Eman Al-erqi ◽  
◽  
Mohd Lizam Mohd Diah ◽  
Najmaddin Abo Mosali ◽  
◽  
...  
Keyword(s):  
International Students ◽  
Service Quality ◽  
Goodness Of Fit ◽  
Structural Model ◽  
Quality Factors ◽  
Factors Affecting ◽  
Measurement Models ◽  
Confirmatory Factor ◽  
The University ◽  
The Impact

This study seeks to address the impact of service quality affecting international student's satisfaction towards loyalty tothe Universiti Tun Hussein Onn Malaysia(UTHM). The aim of thestudy is to develop relationship between service quality factor and loyalty to the university from the international students’ perspectives. The study adopted quantitative approach where data was collected through questionnaire survey and analysed statistically. A total of 246 responses were received and found to be valid. The model was developed and analysed using AMOS-SEM software. Confirmatory factor analysis (CFA) function of the software was to assessed the measurement models and found that all the models achieved goodness of fit. Then path analysis function was used to assessed structural model and found that service qualityfactors have a significant effect on the students’ satisfaction and thus affecting the loyaltyto the university. Hopefully the outcome form this study will benefit the university in providing services especially to the international students.

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