Control for knowledge-based information retrieval
By: Alfred G.H. Ultsch
Series: Informatik-Dissertationen ETH Zürich -- Nr. 3
Publisher: Fachvereine
Published: 1987
Place of publication: Zürich
Language: eng
Number of pages: 146
Subjects: Expert systems (Computer science); Information retrieval
Notes: "A dissertation submitted to the Swiss Federal Institute of Technology (ETH) Zürich for the degree of Doctor of Technical Sciences."

"Diss. ETH Nr. 8353."

Includes bibliographical references (p. 134-146)