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Knowledge-based Recommendation Systems with Lexicographical Approach to Multi-criteria Decision Making

  • Author / Creator
    Gumrah, Giray
  • Users find information on the web via evaluating alternatives based on a set of preferences, and selecting the most suitable ones. However, not all of these preferences are equally important; some of them are more significant than the others. If a given alternative does not satisfy high priority preferences, it is discarded without checking against low priority criteria. The lexicographic approach allows for mimicking user’s attitude that some criteria should be satisfied before other criteria are considered. The thesis describes two different versions of web Personal Evaluation Tool (PET) utilizing a novel approach for selecting the most suitable alternatives regarding information that fit user’s needs. In both versions, the approach follows the concept of lexicographical preferences and combines it with a simple mechanism of representing user’s criterion satisfaction levels. Additionally, the second version incorporates customer reviews. The performed experiments show that the proposed approach is consistent with human-like selection processes.

  • Subjects / Keywords
  • Graduation date
    2010-11
  • Type of Item
    Thesis
  • Degree
    Master of Science
  • DOI
    https://doi.org/10.7939/R36D4C
  • License
    This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.
  • Language
    English
  • Institution
    University of Alberta
  • Degree level
    Master's
  • Department
    • Department of Electrical and Computer Engineering
  • Supervisor / co-supervisor and their department(s)
    • Reformat, Marek (Electrical and Computer Engineering)
  • Examining committee members and their departments
    • Reformat, Marek (Electrical and Computer Engineering)
    • Musilek, Petr (Electrical and Computer Engineering)
    • Szymanski, Jozef (Civil and Environmental Engineering)