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Volltext Blume_Hans_Michael_pdfa.pdf1.pdf (3,8 MB)
URN (f├╝r Zitat) http://nbn-resolving.org/urn:nbn:de:swb:90-262143
Titel Behavior Identification in Markets - using Visualization and Network Analysis
Autor Blume, Hans Michael
Institution Institut f├╝r Informationswirtschaft und -management (IISM)
Dokumenttyp Buch
Verlag Karlsruhe
Jahr 2012
Hochschulschrift Dissertation
Fakult├Ąt f├╝r Wirtschaftswissenschaften (WIWI)
Institut f├╝r Informationswirtschaft und -management (IISM)
Pr├╝fungsdaten: 16.02.2012
Referent/Betreuer: Prof. C. Weinhardt
Abstract Market manipulation is an open problem in prediction markets. In this work a new method is introduced to identify fraud via analysis of the network structure. Furthermore, an interactive graph visualizations technique for market monitoring is developed. The results show that a low false positive rate is possible to attain, while keeping the number of true positives high. The suggested indicators are fast enough for real-time monitoring on small and medium sized graphs.