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ECIR
2009
Springer
15 years 9 months ago
Mean-Variance Analysis: A New Document Ranking Theory in Information Retrieval
Abstract. This paper concerns document ranking in information retrieval. In information retrieval systems, the widely accepted probability ranking principle (PRP) suggests that, fo...
Jun Wang
ISF
2006
118views more  ISF 2006»
14 years 11 months ago
Does information security attack frequency increase with vulnerability disclosure? An empirical analysis
Abstract Research in information security, risk management and investment has grown in importance over the last few years. However, without reliable estimates on attack probabiliti...
Ashish Arora, Anand Nandkumar, Rahul Telang
CCS
2009
ACM
15 years 6 months ago
Mixed-initiative security agents
Security decision-making is hard for both humans and machines. This is because security decisions are context-dependent, require highly dynamic, specialized knowledge, and require...
Rachel Greenstadt, Sadia Afroz, Michael Brennan
STOC
2012
ACM
251views Algorithms» more  STOC 2012»
13 years 2 months ago
Minimax option pricing meets black-scholes in the limit
Option contracts are a type of financial derivative that allow investors to hedge risk and speculate on the variation of an asset’s future market price. In short, an option has...
Jacob Abernethy, Rafael M. Frongillo, Andre Wibiso...
COLT
2006
Springer
15 years 3 months ago
A Randomized Online Learning Algorithm for Better Variance Control
We propose a sequential randomized algorithm, which at each step concentrates on functions having both low risk and low variance with respect to the previous step prediction functi...
Jean-Yves Audibert