Has portfolio theory got any principles?
Zuccon, Guido, Azzopardi, Leif, & van Rijsbergen, C.J. Keith (2010) Has portfolio theory got any principles? In SIGIR '10 Proceedings of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, ACM, Geneva, Switzerland, pp. 755-756.
Recently, Portfolio Theory (PT) has been proposed for Information Retrieval. However, under non-trivial conditions PT violates the original Probability Ranking Principle (PRP). In this poster, we shall explore whether PT upholds a different ranking principle based on Quantum Theory, i.e. the Quantum Probability Ranking Principle (QPRP), and examine the relationship between this new model and the new ranking principle. We make a significant contribution to the theoretical development of PT and show that under certain circumstances PT upholds the QPRP, and thus guarantees an optimal ranking according to the QPRP. A practical implication of this finding is that the parameters of PT can be automatically estimated via the QPRP, instead of resorting to extensive parameter tuning.
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|Item Type:||Conference Paper|
|Divisions:||Current > Institutes > Institute for Future Environments
Current > Schools > School of Information Systems
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2010 ACM|
|Deposited On:||02 Jun 2014 02:06|
|Last Modified:||16 Jun 2014 00:14|
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