Keyphrases
- spam filtering
- spam detection
- anti spam
- text classification
- machine learning models
- spam filters
- multiple criteria
- pairwise comparisons
- ranking algorithm
- pairwise comparison
- preference learning
- web search
- ranking functions
- string kernels
- link analysis
- learning to rank
- preference elicitation
- soft constraints
- user preferences
- feature mapping
- spam classification
- feature space
- ordinal regression
- social choice
- judgment matrix