Towards Detecting Anomalous User Behavior in Online Social Networks

Users increasingly rely on crowd-sourced information, such as reviews on Yelp and Amazon, and liked posts and ads on Facebook. This has led to a market for blackhat promotion techniques via fake (e.g., Sybil) and compromised accounts, and collusion networks. Existing approaches to detect such behavior relies mostly on supervised (or semi-supervised) learning over known (or hypothesized) attacks. They are unable to detect attacks missed by the operator while labeling, or when the attacker changes strategy.

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Resource Details

Provided by:
Association for Computing Machinery
Topic:
Networking
Format:
PDF