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    TSP
    2008
    69views more  TSP 2008»
    A Frame Construction and a Universal Distortion Bound for Sparse Representations
    13 years 4 months ago
    A Frame Construction and a Universal Distortion Bound for Sparse Representations
    Download  www.people.fas.harvard.edu
    Abstract-- We consider approximations of signals by the elements of a frame in a complex vector space of dimension N and formulate both the noiseless and the noisy sparse represent...
    Mehmet Akçakaya, Vahid Tarokh
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    FOCS
    2008
    IEEE
    130views Theoretical Computer Science» more  FOCS 2008»
    Embeddings of Topological Graphs: Lossy Invariants, Linearization, and 2-Sums
    13 years 11 months ago
    Embeddings of Topological Graphs: Lossy Invariants, Linearization, and 2-Sums
    Download  www.cs.washington.edu
    We study the properties of embeddings, multicommodity flows, and sparse cuts in minor-closed families of graphs which are also closed under 2-sums; this includes planar graphs, g...
    Amit Chakrabarti, Alexander Jaffe, James R. Lee, J...
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