Keyphrases
- short messages
- spam filters
- spam filtering
- spam emails
- anti spam
- winnow algorithm
- context sensitive
- linear threshold
- mistake bound
- mobile phone
- social media
- email spam
- image spam
- perceptron algorithm
- spam detection
- weight update
- case study
- machine learning systems
- multiple instance learning
- weighted majority
- text mining
- learning algorithm
- machine learning
- databases
- machine learning methods
- social networks