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» Quantum Information: The New Frontier
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ECIR
2010
Springer
13 years 9 months ago
Using the Quantum Probability Ranking Principle to Rank Interdependent Documents
A known limitation of the Probability Ranking Principle (PRP) is that it does not cater for dependence between documents. Recently, the Quantum Probability Ranking Principle (QPRP)...
Guido Zuccon, Leif Azzopardi
TREC
2001
13 years 9 months ago
The QUANTUM Question Answering System
We participated to the TREC-X QA main task and list task with a new system named QUANTUM, which analyzes questions with shallow parsing techniques and regular expressions. Instead...
Luc Plamondon, Guy Lapalme, Leila Kosseim
TCC
2007
Springer
104views Cryptology» more  TCC 2007»
14 years 2 months ago
Unifying Classical and Quantum Key Distillation
Assume that two distant parties, Alice and Bob, as well as an adversary, Eve, have access to (quantum) systems prepared jointly according to a tripartite state ρABE. In addition, ...
Matthias Christandl, Artur Ekert, Michal Horodecki...
APPROX
2010
Springer
139views Algorithms» more  APPROX 2010»
13 years 9 months ago
Two-Source Extractors Secure against Quantum Adversaries
We initiate the study of multi-source extractors in the quantum world. In this setting, our goal is to extract random bits from two independent weak random sources, on which two q...
Roy Kasher, Julia Kempe
SIGIR
2010
ACM
13 years 8 months ago
Has portfolio theory got any principles?
Recently, Portfolio Theory (PT) has been proposed for Information Retrieval. However, under non-trivial conditions PT violates the original Probability Ranking Principle (PRP). In...
Guido Zuccon, Leif Azzopardi, Keith van Rijsbergen