Simulations as a Means to Address Some Limitations of Laboratorybased IR Evaluation

Heikki Keskustalo, Kalervo Järvelin · Tampere University Institutional Repository (Tampere University) · 2010

We suggest using simulations to address some of the limitations of test collection­ based IR evaluation. In the present paper we explore the effectiveness of short query sessions based on a graph­based view of the searching situation where potential queries (query key combinations) constitute the vertexes of a graph G describing each topic. Session are rules which determine the acceptable query reformulations. Query reformulations manifest as edges in G, and they express the allowed transitions between the vertexes. Multiple­query topical s essions m anifest a s p aths i n G. W e p resent a n e xample o f t his a pproach a ssuming session strategies based on limited query modifications (additions, deletions, or substitutions of few query words). We end by discussing the significance of our approach for IR evaluation.

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