Bow (or libbow) is a library of C code useful for writing statistical text analysis, language modeling and information retrieval programs. The current distribution includes the library, as well as front-ends for document classification (rainbow), document
L. Baker, and A. McCallum. Proceedings of SIGIR-98, 21st ACM International Conference on Research and Development in Information Retrieval, page 96--103. Melbourne, AU, ACM Press, New York, US, (1998)