Two Step graph-based semi-supervised Learning for Online Auction Fraud Detection.
Phiradet BangcharoensapHayato KobayashiNobuyuki ShimizuSatoshi YamauchiTsuyoshi MurataPublished in: ECML/PKDD (3) (2015)
Keyphrases
- fraud detection
- online auctions
- graph based semi supervised learning
- outlier detection
- cost sensitive
- credit card
- semi supervised learning
- data mining techniques
- transaction data
- data mining
- social network analysis
- electronic commerce
- intrusion detection
- label propagation
- graph construction
- prior knowledge
- active learning
- reinforcement learning
- e learning