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SIGIR
2008
ACM
15 years 21 days ago
A unified and discriminative model for query refinement
This paper addresses the issue of query refinement, which involves reformulating ill-formed search queries in order to enhance relevance of search results. Query refinement typica...
Jiafeng Guo, Gu Xu, Hang Li, Xueqi Cheng
IH
1998
Springer
15 years 5 months ago
Attacks on Copyright Marking Systems
In the last few years, a large number of schemes have been proposed for hiding copyright marks and other information in digital pictures, video, audio and other multimedia objects....
Fabien A. P. Petitcolas, Ross J. Anderson, Markus ...
TYPES
2000
Springer
15 years 4 months ago
A Constructive Proof of the Fundamental Theorem of Algebra without Using the Rationals
Abstract. In the FTA project in Nijmegen we have formalized a constructive proof of the Fundamental Theorem of Algebra. In the formalization, we have first defined the (constructiv...
Herman Geuvers, Freek Wiedijk, Jan Zwanenburg
96
Voted
IQ
2007
15 years 2 months ago
In Search Of An Accuracy Metric
Practitioners and researchers often refer to error rates or accuracy percentages of databases. The former is the number of cells in error divided by the total number of cells; the...
Craig W. Fisher, Eitel J. M. Lauría, Caroly...
106
Voted
CRYPTO
1998
Springer
105views Cryptology» more  CRYPTO 1998»
15 years 5 months ago
An Efficient Discrete Log Pseudo Random Generator
The exponentiation function in a finite field of order p (a prime number) is believed to be a one-way function. It is well known that O(log log p) bits are simultaneously hard for ...
Sarvar Patel, Ganapathy S. Sundaram