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GECCO
2008
Springer
116views Optimization» more  GECCO 2008»
15 years 7 months ago
Evolving similarity functions for code plagiarism detection
Students are often asked to submit electronic copies of their program code as part of assessment in computer science courses. To counter code plagiarism, educational institutions ...
Victor Ciesielski, Nelson Wu, Seyed M. M. Tahaghog...
ICDT
1999
ACM
133views Database» more  ICDT 1999»
15 years 10 months ago
A Framework for the Investigation of Aggregate Functions in Database Queries
Abstract. In this paper we present a new approach for studying aggregations in the context of database query languages. Starting from a broad de nition of aggregate function, we ad...
Luca Cabibbo, Riccardo Torlone
COCO
1991
Springer
112views Algorithms» more  COCO 1991»
15 years 9 months ago
Randomized vs.Deterministic Decision Tree Complexity for Read-Once Boolean Functions
We consider the deterministic and the randomized decision tree complexities for Boolean functions, denoted DC(f) and RC(f), respectively. A major open problem is how small RC(f) ca...
Rafi Heiman, Avi Wigderson
AFRICACRYPT
2008
Springer
15 years 8 months ago
How (Not) to Efficiently Dither Blockcipher-Based Hash Functions?
Abstract. In the context of iterated hash functions, "dithering" designates the technique of adding an iteration-dependent input to the compression function in order to d...
Jean-Philippe Aumasson, Raphael C.-W. Phan
WSCG
2004
121views more  WSCG 2004»
15 years 7 months ago
User-Centric Transfer Function Specification in Augmented Reality
The quality of a 3D volume visualization heavily depends on a representative transfer function which is responsible for mapping the original density values to color and opacity. F...
Bernhard Reitinger, Christopher Zach, Alexander Bo...