Journal
MANAGEMENT SCIENCE
Volume 56, Issue 11, Pages 1911-1929Publisher
INFORMS
DOI: 10.1287/mnsc.1100.1232
Keywords
enabling technologies (includes artificial intelligence machine learning and data mining technologies); probability; stochastic model applications; statistics; nonparametric
Funding
- National Science Foundation [IIS-0428868]
- NET Institute
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A collaborative filtering system recommends to users products that similar users like. Collaborative filtering systems influence purchase decisions and hence have become targets of manipulation by unscrupulous vendors. We demonstrate that nearest neighbors algorithms, which are widely used in commercial systems, are highly susceptible to manipulation and introduce new collaborative filtering algorithms that are relatively robust.
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