Spelling suggestions: "subject:"[een] OPTIMIZATION"" "subject:"[enn] OPTIMIZATION""
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Collision Finding with Many Classical or Quantum ProcessorsJeffery, Stacey January 2011 (has links)
In this thesis, we investigate the cost of finding collisions in a black-box function, a problem that is of fundamental importance in cryptanalysis. Inspired by the excellent performance of the heuristic rho method of collision finding, we define several new models of complexity that take into account the cost of moving information across a large space, and lay the groundwork for studying the performance of classical and quantum algorithms in these models.
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Efficient Trust Region Subproblem AlgorithmsYe, Heng January 2011 (has links)
The Trust Region Subproblem (TRS) is the problem of minimizing a quadratic (possibly non-convex) function over a sphere. It is the main step of the trust region method for unconstrained optimization problems. Two cases may cause numerical difficulties in solving the TRS, i.e., (i) the so-called hard case and (ii) having a large trust region radius. In this thesis we give the optimality characteristics of the TRS and review the major current algorithms. Then we introduce some techniques to solve the TRS efficiently for the two difficult cases. A shift and deflation technique avoids the hard case; and a scaling can adjust the value of the trust region radius. In addition, we illustrate other improvements for the TRS algorithm, including: rotation, approximate eigenvalue calculations, and inverse polynomial interpolation. We also introduce a warm start approach and include a new treatment for the hard case for the trust region method. Sensitivity analysis is provided to show that the optimal objective value for the TRS is stable with respect to the trust region radius in both the easy and hard cases. Finally, numerical experiments are provided to show the performance of all the improvements.
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Robust optimal design of structures in the presence of uncertain loads.Azad, Arman. January 2005 (has links)
Thesis (M.A. Sc.)--University of Toronto, 2005. / Source: Masters Abstracts International, Volume: 44-02, page: 0952.
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A discrete equal-capacity p-Median problem /Marathe, Vikram. January 1992 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 100-104). Also available via the Internet.
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A coordinate gradient descent method for structured nonsmooth optimization /Yun, Sangwoon, January 2007 (has links)
Thesis (Ph. D.)--University of Washington, 2007. / Vita. Includes bibliographical references (p. 125-133).
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Three-dimensional trajectory optimization in constrained airspaceDai, Ran. Cochran, John E. January 2007 (has links) (PDF)
Dissertation (Ph.D.)--Auburn University, 2007. / Abstract. Vita. Includes bibliographic references.
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Probabilistic limit theorems for combinatiorial optimization problems /McGivney, Katherine Grace, January 1997 (has links)
Thesis (Ph. D.)--Lehigh University, 1997. / Includes vita. Bibliography: leaves 119-120.
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Algorithms for a constrained optimization problem with applications in statistics and optimum designTorsney, Ben. January 1981 (has links)
Thesis (Ph.D.) -- University of Glasgow, 1981. / Includes bibliographical references (p. 329-336). Print version also available.
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Topology optimization with simultaneous analysis and design /Sankaranarayanan, S., January 1992 (has links)
Thesis (Ph. D.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 74-80). Also available via the Internet.
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Funding site cleanup at closing Army installations : a stochastic optimization approach /Ardic, Sureyya. January 2001 (has links) (PDF)
Thesis (M.S. in Operations Research) Naval Postgraduate School, December 2001. / Thesis Advisor (s): Dell, Robert F. "December 2001." Includes bibliographical references (p. 35). Also available online.
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