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JCT
2010
79views more  JCT 2010»
15 years 1 months ago
Confinement of matroid representations to subsets of partial fields
Let M be a matroid representable over a (partial) field and B a matrix representable over a sub-partial field . We say that B confines M to if, whenever a -representation matrix ...
Rudi Pendavingh, Stefan H. M. van Zwam
SIAMREV
2010
114views more  SIAMREV 2010»
15 years 1 months ago
From Random Polygon to Ellipse: An Eigenanalysis
Suppose x and y are unit 2-norm n-vectors whose components sum to zero. Let P(x, y) be the polygon obtained by connecting (x1, y1), . . . , (xn, yn), (x1, y1) in order. We say that...
Adam N. Elmachtoub, Charles F. Van Loan
CODCRY
2011
Springer
242views Cryptology» more  CODCRY 2011»
14 years 10 months ago
Faster 2-Regular Information-Set Decoding
Fix positive integers B and w. Let C be a linear code over F2 of length Bw. The 2-regular-decoding problem is to find a nonzero codeword consisting of w length-B blocks, each of w...
Daniel J. Bernstein, Tanja Lange, Christiane Peter...
PAKDD
2011
ACM
209views Data Mining» more  PAKDD 2011»
14 years 9 months ago
Spectral Analysis for Billion-Scale Graphs: Discoveries and Implementation
Abstract. Given a graph with billions of nodes and edges, how can we find patterns and anomalies? Are there nodes that participate in too many or too few triangles? Are there clos...
U. Kang, Brendan Meeder, Christos Faloutsos
TVCG
2012
171views Hardware» more  TVCG 2012»
13 years 8 months ago
Region-Based Line Field Design Using Harmonic Functions
—Field design has wide applications in graphics and visualization. One of the main challenges in field design has been how to provide users with both intuitive control over the d...
Chih-Yuan Yao, Ming-Te Chi, Tong-Yee Lee, Tao Ju