Spam detection in voice-over-IP calls through semi-supervised clustering.
Yu-Sung WuSaurabh BagchiNavjot SinghRatsameetip WitaPublished in: DSN (2009)
Keyphrases
- spam detection
- semi supervised clustering
- voice over ip
- real time video
- semi supervised
- quality of service
- network architecture
- metric learning
- pairwise constraints
- background knowledge
- unsupervised clustering
- semi supervised learning
- clustering algorithm
- labeled data
- spam filtering
- document clustering
- fraud detection
- nonnegative matrix factorization
- k means
- pairwise
- domain knowledge
- distance metric
- feature space
- databases