29 research outputs found

    Annual report of the Board of Regents of the Smithsonian Institution, showing the operations, expenditures, and condition of the institution for the year 1871.

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    Annual Report of the Smithsonian Institution. [1482] Research related to the American Indian; mounds in Dakota and Kentucky; the Pima Indians of Arizona; on the language of the Dakota or Sioux Indians

    On the shape of mathematical arguments

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    State Female Normal School Catalogue, Twenty-Fourth Session, 1907-1908

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    https://digitalcommons.longwood.edu/catalogs/1010/thumbnail.jp

    Acta Cybernetica : Tomus 7. Fasciculus 4.

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    Fast Practical Lattice Reduction through Iterated Compression

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    We introduce a new lattice basis reduction algorithm with approximation guarantees analogous to the LLL algorithm and practical performance that far exceeds the current state of the art. We achieve these results by iteratively applying precision management techniques within a recursive algorithm structure and show the stability of this approach. We analyze the asymptotic behavior of our algorithm, and show that the heuristic running time is O(nω(C+n)1+ε)O(n^{\omega}(C+n)^{1+\varepsilon}) for lattices of dimension nn, ω(2,3]\omega\in (2,3] bounding the cost of size reduction, matrix multiplication, and QR factorization, and CC bounding the log of the condition number of the input basis BB. This yields a running time of O(nω(p+n)1+ε)O\left(n^\omega (p + n)^{1 + \varepsilon}\right) for precision p=O(logBmax)p = O(\log \|B\|_{max}) in common applications. Our algorithm is fully practical, and we have published our implementation. We experimentally validate our heuristic, give extensive benchmarks against numerous classes of cryptographic lattices, and show that our algorithm significantly outperforms existing implementations

    State Female Normal School Catalogue, Twenty-Fifth Session, 1908-1909

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    https://digitalcommons.longwood.edu/catalogs/1011/thumbnail.jp
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