Has portfolio theory got any principles?
| Data(s) |
2010
|
|---|---|
| Resumo |
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. |
| Formato |
application/pdf |
| Identificador | |
| Publicador |
ACM |
| Relação |
http://eprints.qut.edu.au/69282/1/zuccon2010c.pdf DOI:10.1145/1835449.1835600 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. |
| Direitos |
Copyright 2010 ACM |
| Fonte |
Institute for Future Environments; School of Information Systems; Science & Engineering Faculty |
| Tipo |
Conference Paper |
