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Anomaly detection in car-booking graphs

  • Oleksandr Shchur
  • , Aleksandar Bojchevski
  • , Mohamed Farghal
  • , Stephan Gunnemann
  • , Yusuf Saber
  • Technical University of Munich
  • Careem

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

The use of car-booking services has gained massive popularity in the recent years-which led to an increasing number of fraudsters that try to game these systems. In this paper we describe a framework for fraud detection in car-booking systems. Our core idea lies in casting this problem as an instance of anomaly detection in temporal graphs. Specifically, we use unsupervised techniques, such as dense subblock discovery, to detect suspicious activity. The proposed framework is able to adapt to the variations in the data inherent to the car-booking setting, and detects fraud with high precision. This work is performed in collaboration with Careem, where the described framework is currently being deployed in production.

Original languageEnglish
Title of host publicationProceedings - 18th IEEE International Conference on Data Mining Workshops, ICDMW 2018
EditorsHanghang Tong, Zhenhui Li, Feida Zhu, Jeffrey Yu
PublisherIEEE Computer Society
Pages604-607
Number of pages4
ISBN (Electronic)9781538692882
DOIs
StatePublished - 2 Jul 2018
Event18th IEEE International Conference on Data Mining Workshops, ICDMW 2018 - Singapore, Singapore
Duration: 17 Nov 201820 Nov 2018

Publication series

NameIEEE International Conference on Data Mining Workshops, ICDMW
Volume2018-November
ISSN (Print)2375-9232
ISSN (Electronic)2375-9259

Conference

Conference18th IEEE International Conference on Data Mining Workshops, ICDMW 2018
Country/TerritorySingapore
CitySingapore
Period17/11/1820/11/18

Keywords

  • anomaly detection
  • car booking systems
  • tensor decomposition

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