Sparse binary polynomial hashing
Sparse binary polynomial hashing (SBPH) is a generalization of Bayesian spam filtering that can match mutating phrases as well as single words. SBPH is a way of generating a large number of features from an incoming text automatically, and then using statistics to determine the weights for each of those features in terms of their predictive values for spam/nonspam evaluation.
- A paper on the subject as it relates to spam (some article text comes from this document, which is under the GFDL)
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