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SDM
2011
SIAM
414views Data Mining» more  SDM 2011»
14 years 10 months ago
Clustered low rank approximation of graphs in information science applications
In this paper we present a fast and accurate procedure called clustered low rank matrix approximation for massive graphs. The procedure involves a fast clustering of the graph and...
Berkant Savas, Inderjit S. Dhillon
FOCS
2009
IEEE
16 years 2 months ago
Settling the Complexity of Arrow-Debreu Equilibria in Markets with Additively Separable Utilities
We prove that the problem of computing an Arrow-Debreu market equilibrium is PPAD-complete even when all traders use additively separable, piecewise-linear and concave utility fun...
Xi Chen, Decheng Dai, Ye Du, Shang-Hua Teng
STACS
2004
Springer
16 years 19 days ago
Lattices with Many Cycles Are Dense
Abstract We give a method for approximating any n-dimensional lattice with a lattice Λ whose factor group Zn /Λ has n − 1 cycles of equal length with arbitrary precision. We al...
Mårten Trolin
GI
2003
Springer
16 years 15 days ago
Link Analysis and Site Structure in Information Retrieval
: Link analysis is the most important application of web structure mining and serves as a new knowledge source in web information retrieval. However, the mono-dimensional analysis ...
Thomas Mandl
TLCA
2009
Springer
16 years 1 months ago
Syntax for Free: Representing Syntax with Binding Using Parametricity
We show that, in a parametric model of polymorphism, the type ∀α.((α → α) → α) → (α → α → α) → α is isomorphic to closed n terms. That is, the type of closed ...
Robert Atkey