Learning framework for online applications

Details Learning framework for online applications Learning framework for online applications

2011-08-09

2011-08-09

Pearson, David J (Department: 2438)

Information security

Monitoring or scanning of software or data including attack...

C706S052000

Reexamination Certificate

active

07996897

ABSTRACT:
Learning to, and detecting spam messages using a multi-stage combination of probability calculations based on individual and aggregate training sets of previously identified messages. During a preliminary phase, classifiers are trained, lower and upper limit probabilities, and a combined probability threshold are iteratively determined using a multi-stage combination of probability calculations based on minor and major subsets of messages previously categorized as valid or spam. During a live phase, a first stage classifier uses only a particular subset, and a second stage classifier uses a master set of previously categorized messages. If a newly received message can not be categorized with certainty by the first stage classifier, and a computed first stage probability is within the previously determined lower and upper limits, first and second stage probabilities are combined. If the combined probability is greater than the previously determined combined probability threshold, the received message is marked as spam.

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