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Browsing MIT Open Access Articles by Title

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  • Mittal, Shashi; Schulz, Andreas S. (Institute for Operations Research and the Management Sciences (INFORMS), 2013-02)
    In this paper, we present a general framework for designing approximation schemes for combinatorial optimization problems in which the objective function is a combination of more than one function. Examples of such problems ...
  • Tulabandhula, Theja; Rudin, Cynthia (Springer Science+Business Media, 2014-12)
    In this paper, we consider a supervised learning setting where side knowledge is provided about the labels of unlabeled examples. The side knowledge has the effect of reducing the hypothesis space, leading to tighter ...
  • He, Xuhua; Lusztig, George (American Mathematical Society, 2012-01)
    Let G be a semisimple group over an algebraically closed field. Steinberg has associated to a Coxeter element w of minimal length r a subvariety V of G isomorphic to an affine space of dimension r which meets the regular ...
  • Demaine, Erik D.; Lubiw, Anna (Springer-Verlag, 2012)
    We present a new method for unfolding a convex polyhedron into one piece without overlap, based on shortest paths to a convex curve on the polyhedron. Our “sun unfoldings” encompass source unfolding from a point, source ...
  • Kedlaya, Kiran S.; Shao, Xuancheng (American Mathematical Society, 2009-01)
    In this paper, we present some generalizations of Gowers’s result about product-free subsets of groups. For any group G of order n, a subset A of G is said to be product-free if there is no solution of the equation ab = ...
  • Kottke, Chris; Melrose, Richard B (2014-06)
    Real blow-up, including inhomogeneous versions, of boundary faces of a manifold (with corners) is an important tool for resolving singularities, degeneracies and competing notions of homogeneity. These constructions are ...
  • Wang, Yinan (Springer-Verlag, 2015-07)
    We develop the generalized Cartan Calculus for the groups G = SL(2,R) × R[superscript +],SL(5,R) and SO(5, 5). They are the underlying algebraic structures of d = 9, 7, 6 exceptional field theory, respectively. These ...
  • Hwang, J. George; Lehn, Peter W.; Winkelnkemper, Manfred (Institute of Electrical and Electronics Engineers (IEEE), 2010-10)
    Within power systems, high-power pulsewidth-modulated ac-dc converters are used in flexible ac transmission systems controllers and for interfacing renewable energy sources to the grid. These converters traditionally ...
  • Grassl, Markus; Shor, Peter W.; Smith, Graeme; Smolin, John; Zeng, Bei (American Physical Society, 2009-05)
    We discuss the concept of generalized concatenated quantum codes. This generalized concatenation method provides a systematical way for constructing good quantum codes, both stabilizer codes and nonadditive codes. Using ...
  • Grassl, Markus; Zeng, Bei; Shor, Peter W. (Institute of Electrical and Electronics Engineers, 2009-08)
    We show how good quantum error-correcting codes can be constructed using generalized concatenation. The inner codes are quantum codes, the outer codes can be linear or nonlinear classical codes. Many new good codes are ...
  • Georghiou, Angelos; Wiesemann, Wolfram; Kuhn, Daniel (Springer Berlin Heidelberg, 2014-05)
    Stochastic programming provides a versatile framework for decision-making under uncertainty, but the resulting optimization problems can be computationally demanding. It has recently been shown that primal and dual linear ...
  • Khan, Kamil A.; Barton, Paul I. (Springer US, 2014-03)
    Sensitivity analysis provides useful information for equation-solving, optimization, and post-optimality analysis. However, obtaining useful sensitivity information for systems with nonsmooth dynamic systems embedded is a ...
  • Demaine, Erik D.; Price, Gregory N. (Springer-Verlag, 2009-09)
    A convex surface that is flat everywhere but on finitely many smooth curves (or seams) and points is a seam form. We show that the only creases through the flat components of a seam form are either between vertices or ...
  • Iadecola, Thomas; Chamon, Claudio; Jackiw, Roman; Pi, So-Young (American Physical Society, 2013-09)
    Driven condensed matter systems consistently pose substantial challenges to theoretical understanding. Progress in the study of such systems has been achieved using the Floquet formalism, but certain aspects of this approach ...
  • Becker, Ulrich J.; Berges, P.; Burger, Joseph D.; Cai, Xudong; Capell, Michael H.; Clare, I.; Eppling, Frederic J.; Fisher, Peter H.; Forconi, G.; Galaktionov, Y.; Klimentov, A.; Koutsenko, Vladimir; Kunin, A.; Lebedev, Alexei; Paus, Christoph M. E.; Shoutko, V.; Steuer, M.; Ting, Samuel; Ting, S. M. (Springer-Verlag, 2011-10)
    We present results from a study of hadronic event structure in high energy e[superscript +]e[superscript −] interactions using the L3 detector at LEP. A new class of event shape distributions are measured at and above the ...
  • Yu, Xiangyao; Ren, Ling; Devadas, Srinivas; Fletcher, Christopher Wardlaw; van Dijk, Marten (Association for Computing Machinery (ACM), 2013-11)
    This paper investigates secure ways to interact with tamper-resistant hardware leaking a strictly bounded amount of information. Architectural support for the interaction mechanisms is studied and performance implications ...
  • Dominguez-Garcia, A. D.; Schindall, Joel E.; Kassakian, John G. (Institute of Electrical and Electronics Engineers, 2009-05)
    This paper proposes a fault coverage model for linear time-invariant (LTI) systems subject to uncertain input. A state-space representation, defined by the state-transition matrix, and the input matrix, is used to represent ...
  • Mistry, Karan Hemant; Lienhard, John H. (MDPI AG, 2013-05)
    Increasing global demand for fresh water is driving the development and implementation of a wide variety of seawater desalination technologies driven by different combinations of heat, work, and chemical energy. This paper ...
  • Gattami, Ather Said (Institute of Electrical and Electronics Engineers, 2010-01)
    We consider the problem of stochastic finite- and infinite-horizon linear quadratic control under power constraints. The calculations of the optimal control law can be done off-line as in the classical linear quadratic ...
  • Mason, J. K.; Schuh, Christopher A. (Elsevier B.V., 2009-07)
    A general formulation for the disorientation angle distribution function is derived. The derivation employs the hyperspherical harmonic expansion for orientation distributions, and an explicit solution is presented for ...
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