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WPES
2005
ACM
16 years 5 days ago
The privacy cost of the second-chance offer
This paper examines a generalization of a two-stage game common on eBay: an ascending-price auction followed by price discrimination (the second chance offer). High bids in the a...
Sumit Joshi, Yu-An Sun, Poorvi L. Vora
BTW
2005
Springer
113views Database» more  BTW 2005»
16 years 4 days ago
A Learning Optimizer for a Federated Database Management System
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
Stephan Ewen, Michael Ortega-Binderberger, Volker ...
CCS
2005
ACM
16 years 4 days ago
Fast dictionary attacks on passwords using time-space tradeoff
Human-memorable passwords are a mainstay of computer security. To decrease vulnerability of passwords to bruteforce dictionary attacks, many organizations enforce complicated pass...
Arvind Narayanan, Vitaly Shmatikov
CCS
2005
ACM
16 years 4 days ago
An auctioning reputation system based on anomaly
Existing reputation systems used by online auction houses do not address the concern of a buyer shopping for commodities—finding a good bargain. These systems do not provide in...
Shai Rubin, Mihai Christodorescu, Vinod Ganapathy,...
EUROCRYPT
2005
Springer
16 years 4 days ago
Approximate Quantum Error-Correcting Codes and Secret Sharing Schemes
It is a standard result in the theory of quantum error-correcting codes that no code of length n can fix more than n/4 arbitrary errors, regardless of the dimension of the coding ...
Claude Crépeau, Daniel Gottesman, Adam Smit...
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