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Shaw, W.M.; Burgin, R.; Howell, P.: Performance standards and evaluations in IR test collections : cluster-based retrieval models (1997)
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Shaw, W.M.; Burgin, R.; Howell, P.: Performance standards and evaluations in IR test collections : vector-space and other retrieval models (1997)
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Tang, R.; Shaw, W.M.; Vevea, J.L.: Towards the identification of the optimal number of relevance categories (1999)
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