Collusive shill bidding detection in online auctions using Markov Random Field.
Nazia MajadiJarrod TrevathanNeil BergmannPublished in: Electron. Commer. Res. Appl. (2019)
Keyphrases
- online auctions
- markov random field
- graph cuts
- higher order
- belief propagation
- bid prices
- parameter estimation
- random fields
- image segmentation
- mrf model
- maximum a posteriori
- electronic commerce
- pairwise
- energy function
- image restoration
- energy minimization
- conditional random fields
- message passing
- object detection
- potential functions
- bidding strategies
- prior model
- mrf models
- loopy belief propagation
- markov random field model
- discriminative random fields
- machine learning
- map estimation
- textured images
- special case
- reputation systems
- maximum a posterior
- label field