Richard Lackes

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With the use of the internet and access to nearly unlimited information, it appears more appealing to use such sources in an illegitimate manner. The comparison of texts based on relevant string-sets seems to be a promising and time-efficient approach to automated plagiarism-detection.
The impressive scale of online auctions sales and the economic eco-system of private and commercial providers, made eBay & Co. interesting for science. As part of this work determinants will be identified which affect the outcome of online auctions to a large extent. We observed that for identical (new) products often different prices were charged and(More)
This paper presents the concept and realisation of an e-learning tool that provides predefined or automatically generated exercises concerning the net requirements planning. Students may practise where- and whenever they like to via the internet. Their solutions are marked automatically while considering consecutive faults and without any intervention of(More)
The generation and marking of complex exercises always is a very difficult task. This paper presents the concept and realisation of an e-learning tool that provides predefined or automatically generated calculation exercises. Students may practise where- and whenever they like to via the internet. Their solutions are marked automatically while considering(More)