Spam Mail Filtering Method Based on Suffix Tree

In recent years, e-mail technology is prospering, bringing efficiency to people from all over the world. It is not limited to time and space, making the transmission of information more convenient. However, the emergence of spam has also brought people a lot of trouble. Thus, spam filtering research is necessary. Traditional spam filtering is mainly based on black and white list technology. Over the past decade, with the development of machine learning, Bayesian classifier has also come into use. However, support for Chinese mail has always been unsatisfactory. This paper proposes a Chinese spam filtering method based on suffix tree, which solves the problem of Chinese character processing and compares it with traditional methods from the aspects of time and space complexity and accuracy.