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» On Sketching Quadratic Forms
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MOC
1998
71views more  MOC 1998»
13 years 9 months ago
A constructive theory of triple and quintuple product identities of the second degree
The groundwork for a theory of quadratic identities involving the classical triple and quintuple products is layed. The approach is through the study and use of affine maps that ac...
Richard Blecksmith, John Brillhart, Irving Gerst
IAAI
2003
13 years 11 months ago
Qualitative Spatial Reasoning about Sketch Maps
Sketch maps are an important spatial representation used in many geospatial reasoning tasks. This paper describes techniques we have developed that enable software to perform huma...
Kenneth D. Forbus, Jeffrey M. Usher, Vernell Chapm...
CAGD
2006
75views more  CAGD 2006»
13 years 9 months ago
Rational quadratic circles are parametrized by chord length
We show that the chord length parameter assignment is exact for circle segments in standard rational quadratic form.
Gerald E. Farin
UIST
2004
ACM
14 years 3 months ago
SketchREAD: a multi-domain sketch recognition engine
We present SketchREAD, a multi-domain sketch recognition engine capable of recognizing freely hand-drawn diagrammatic sketches. Current computer sketch recognition systems are dif...
Christine Alvarado, Randall Davis
UIST
2009
ACM
14 years 4 months ago
EverybodyLovesSketch: 3D sketching for a broader audience
We present EverybodyLovesSketch, a gesture-based 3D curve sketching system for rapid ideation and visualization of 3D forms, aimed at a broad audience. We first analyze traditiona...
Seok-Hyung Bae, Ravin Balakrishnan, Karan Singh