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» On Sketching Quadratic Forms
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ICASSP
2011
IEEE
13 years 1 months ago
Rank-deficient quadratic-form maximization over M-phase alphabet: Polynomial-complexity solvability and algorithmic developments
The maximization of a positive (semi)definite complex quadratic form over a finite alphabet is NP-hard and achieved through exhaustive search when the form has full rank. Howeve...
Anastasios T. Kyrillidis, George N. Karystinos
MA
2011
Springer
219views Communications» more  MA 2011»
13 years 4 months ago
Quadratic minimisation problems in statistics
We consider the problem minx(x−t) A(x−t) subject to x Bx + 2b x = k where A is positive definite or positive semidefinite. Commonly occurring statistical variants of this pro...
Casper J. Albers, Frank Critchley, John C. Gower
CHI
2006
ACM
14 years 10 months ago
"Sketching" nurturing creativity: commonalities in art, design, engineering and research
icians or philosophers use abstract symbols to derive formulas or form proofs. Indeed, these sketches are structural geometric proofs, consistent with Plato's supposition that...
Kumiyo Nakakoji, Atau Tanaka, Daniel Fallman
IUI
2004
ACM
14 years 3 months ago
Speech and sketching for multimodal design
While sketches are commonly and effectively used in the early stages of design, some information is far more easily conveyed verbally than by sketching. In response, we have combi...
Aaron Adler, Randall Davis
ICCSA
2003
Springer
14 years 2 months ago
Digital Styling for Designers: Sketch Emulation in Computer Environment
Abstract. The digitalization of product-styling tools for the early designdevelopment stage has focused on using raster-type graphics S/Ws. These kinds of S/Ws enable designers fre...
Seok-Hyung Bae, Won-Sup Kim, Eun-Sook Kwon