Novelty and diversity in information retrieval evaluation

Charles L.A. Clarke, Maheedhar Kolla, Gordon V. Cormack, Olga Vechtomova, Azin Ashkan, Stefan Büttcher, Ian MacKinnon
2008 Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '08  
Evaluation measures act as objective functions to be optimized by information retrieval systems. Such objective functions must accurately reflect user requirements, particularly when tuning IR systems and learning ranking functions. Ambiguity in queries and redundancy in retrieved documents are poorly reflected by current evaluation measures. In this paper, we present a framework for evaluation that systematically rewards novelty and diversity. We develop this framework into a specific
more » ... n measure, based on cumulative gain. We demonstrate the feasibility of our approach using a test collection based on the TREC question answering track.
doi:10.1145/1390334.1390446 dblp:conf/sigir/ClarkeKCVABM08 fatcat:6ozn44dfi5ejzfrglkgxah6sqa