Download or read book Countering Good Word Attacks on Statistical Spam Filters with Instance Differentiation and Multiple Instance Learning written by Yan Zhou and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A multiple instance learning counterattack strategy for combating adversarial good word attacks on statistical spam filters has been presented. In the proposed strategy, e-mails are treated as multiple instance bags and a logistic model at the instance level is learned indirectly by maximizing the bag-level binomial log-likelihood function. The proposed counterattack strategy has been demonstrated on good word attacks of varying strength and has been shown to be effective. Additionally, we have confirmed earlier reports that.