No description available of David R. Hanssen...
Anick, Peter G., Flynn, Rex A. and Hanssen, David R. (1991): Addressing the Requirements of a Dynamic Corporate Textual Information Base. In: Proceedings of the Fourteenth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval 1991. pp. 163-172. Available online
Anick, Peter G., Brennan, Jeffrey D., Flynn, Rex A., Hanssen, David R., Alvey, Bryan and Robbins, Jeffrey M. (1990): A Direct Manipulation Interface for Boolean Information Retrieval via Natural Language Query. In: Proceedings of the Thirteenth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval 1990. pp. 135-150.
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