This collection was obtained from http://ir.dcs.gla.ac.uk/resources/test_collections/cran/ and is publicly available.

The relevance judgments are non-binary, facilitating evaluation using NDCG. Everything has been converted to MeTA line-corpus format. The original relevance judgments include relevance values of -1, which are unexplained in the original data's README. We have excluded these judgments from the data provided here.