Languagebased Generation and Evaluation of NIDS Signatures.
You can download it from the following link: https://packetstormsecurity.com/files/download/51900/Language-based-Generation-and-Evaluation-of-NIDS-Signatures.pdf
Source: https://packetstormsecurity.com/files/51900/Language-based-Generation-and-Evaluation-of-NIDS-Signatures.pdf.html