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The dynamics of hourly electricity prices
Härdle, Wolfgang; Trück, Stefan - 2010
The dynamics of hourly electricity prices in day-ahead markets is an important element of competitive power markets that were only established in the last decade. In electricity markets, the market microstructure does not allow for continuous trading, since operators require advance notice in...
Persistent link: https://www.econbiz.de/10003952964
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Statistics e-learning platforms evaluation : case study
Ahmad, Taleb (contributor); Härdle, Wolfgang (contributor) - 2008
students views? In this paper, we consider evaluate e-learning systems in statistics. We make an evaluation study, we analyze a … students sample of the methods: Factor analysis, Logit model. The common aim of this evaluation is to provide data to justify … questionnaire covers information about e-learning evaluation criterias. Some of these criterias are: Navigability, applicability …
Persistent link: https://www.econbiz.de/10003770800
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Constrained general regression in pseudo-Sobolev spaces with application to option pricing
Hlávka, Zdeněk (contributor); Pešta, Michal (contributor) - 2006
State price density (SPD) contains important information concerning market expectations. In existing literature, a constrained estimator of the SPD is found by nonlinear least squares in a suitable Sobolev space. We improve the behavior of this estimator by implementing a covariance structure...
Persistent link: https://www.econbiz.de/10003376011
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Linking corporate reputation and shareholder value using the publication of reputation rankings
Tischer, Sven; Hildebrandt, Lutz - 2011
Good corporate reputation is seen as one of the most valuable assets. It is believed to cause a multitude of favorable impacts within different stakeholder groups. As a consequence, a multitude of studies analyzed the relationship between corporate reputation and financial performance. However,...
Persistent link: https://www.econbiz.de/10009349184
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Computational statistics and data visualization
Unwin, Antony (contributor); Chen, Chun-houh (contributor);  … - 2007
Persistent link: https://www.econbiz.de/10003633608
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Using Wiki to build an e-learning system in statistics in Arabic language
Ahmad, Taleb (contributor); Härdle, Wolfgang (contributor);  … - 2007
E-learning plays an important role in education as it supports online education via computer networks and provides educational services by utilising information technologies. We present a case study describing the development of an Arabic language elearning course in statistics. Discussed are...
Persistent link: https://www.econbiz.de/10003633861
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On the utility of e-learning in statistics
Härdle, Wolfgang (contributor); Klinke, Sigbert (contributor) - 2007
Students of introductory courses consider statistics as particularly difficult, as the understanding of the underlying concepts may require more time and energy than for other disciplines. For decades statisticians have tried to enhance understanding with the help of technical solutions such as...
Persistent link: https://www.econbiz.de/10003634680
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Integrable e-lements for statistics education
Härdle, Wolfgang (contributor); Klinke, Sigbert (contributor) - 2005
Without doubt modern education in statistics must involve practical, computer-based data analysis but the question arises whether and how computational elements should be integrated into the canon of methodological education. Should the student see and study high-level programming code right at...
Persistent link: https://www.econbiz.de/10003324141
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On the difficulty to design Arabic e-learning system in statistics
Ahmad, Taleb (contributor); Härdle, Wolfgang (contributor);  … - 2006
In this paper, we present a case study, which describe the development of the Statistic e-learning-course in Arabic language -"Arabic MM*STAT". The basic frame for this E-book, the system MM*STAT was developed at the School for Business and Economics of Humboldt-Universita͏̈t zu Berlin. Arabic...
Persistent link: https://www.econbiz.de/10003375984
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Using R, LaTeX and Wiki for an Arabic e-learning platform
Ahmad, Taleb; Härdle, Wolfgang; Klinke, Sigbert; … - 2008
E-learning plays an important role in education as it supports online education via computer networks and provides educational services by utilising information technologies. We present a case study describing the development of an Arabic language elearning course in statistics. Discussed are...
Persistent link: https://www.econbiz.de/10003693102