ng Conference, Las Vegas, Nevada. Jansen, B.J., Spink, A., and Saracevic, T. (1998) Failure analysis in Query Construction: Data and Analysis from a Large Sample of Web Queries, Proceedings of the 3n° ACM Conference on Digital Libraries, p. 289-290. Pittsburgh, PA. 23-26 July. Spink, A., Bateman, J., and Jansen, B.J. (1998