Describes the development of a method for the evaluation and comparison of interactive information retrieval systems, which are based on the concept of a simulated work-task situation and the involvement of real end users. Highlights include real and simulated information needs; relevance assessments; and the dynamic nature of information needs.…

Describes the simulation of a nearest neighbor searching algorithm for document retrieval using a pool of microprocessors. Three techniques are described which allow parallel searching of a binary search tree as well as a PASCAL-based system, PASSIM, which can simulate these techniques. Fifty-six references are provided. (Author/LRW)

Discusses the evaluation of interactive information retrieval (IIR) systems and explains two main approaches, system-driven and user-centered. Describes Text Retrieval Conference (TREC), and concludes that the simulated work task situation as an experimental sub-component could be recommended for future evaluation of IIR systems based on empirical…