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» Separation in Theory - Coordination in Practice
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AAAI
1994
13 years 10 months ago
An Instructional Environment for Practicing Argumentation Skills
CAT0 is an instructions environment for practicing basic skills of legal research: to use cases in arguments about a problem situation and to test a theory about a legal domain. U...
Vincent Aleven, Kevin D. Ashley
CCS
2010
ACM
14 years 3 months ago
Toward practical authorization-dependent user obligation systems
Many authorization system models include some notion of obligation. Little attention has been given to user obligations that depend on and affect authorizations. However, to be u...
Murillo Pontual, Omar Chowdhury, William H. Winsbo...
AFRIGRAPH
2004
ACM
14 years 2 months ago
Designing a VR interaction authoring tool using constructivist practices
This paper describes the process of designing an authoring tool for virtual environments, using constructivist principles. The focus of the tool is on helping novice designers wit...
Cara Winterbottom, Edwin H. Blake
TAGT
1994
Springer
154views Graph Theory» more  TAGT 1994»
14 years 1 months ago
Issues in the Practical Use of Graph Rewriting
Graphs are a popular data structure, and graph-manipulation programs are common. Graph manipulations can be cleanly, compactly, and explicitly described using graph-rewriting notat...
Dorothea Blostein, Hoda Fahmy, Ann Grbavec
SODA
2012
ACM
209views Algorithms» more  SODA 2012»
11 years 11 months ago
Simple and practical algorithm for sparse Fourier transform
We consider the sparse Fourier transform problem: given a complex vector x of length n, and a parameter k, estimate the k largest (in magnitude) coefficients of the Fourier transf...
Haitham Hassanieh, Piotr Indyk, Dina Katabi, Eric ...