Guido Zuccon, Leif Azzopardi, Keith van Rijsbergen. Has portfolio theory got any principles?. In Fabio Crestani, Stéphane Marchand-Maillet, Hsin-Hsi Chen, Efthimis N. Efthimiadis, Jacques Savoy, editors, Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010. pages 755-756, ACM, 2010. [doi]
Abstract is missing.