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Browsing MIT Open Access Articles by Title

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  • Chua, Lynn; Sankar, Krishanu Roy (Electronic Journal of Combinatorics, 2014-03)
    The popularity of a pattern p in a set of permutations is the sum of the number of copies of p in each permutation of the set. We study pattern popularity in the set of 132-avoiding permutations. Two patterns are equipopular ...
  • Frazzoli, Emilio; Pavone, Marco; Bullo, Francesco; Arsie, Alessandro (Institute of Electrical and Electronics Engineers, 2009-07)
    The most widely applied resource allocation strategy is to balance, or equalize, the total workload assigned to each resource. In mobile multi-agent systems, this principle directly leads to equitable partitioning policies ...
  • Vera Andreo, Jorge R.; Freund, Robert Michael (Institute for Operations Research and the Management Sciences (INFORMS), 2009-03)
    Consider the supposedly simple problem of computing a point in a convex set that is conveyed by a separation oracle with no further information (e.g., no domain ball containing or intersecting the set, etc.). The authors' ...
  • Aaronson, Scott (Springer Berlin/Heidelberg, 2011-06)
    In a sampling problem, we are given an input x\in\left\{ 0,1\right\} ^{n} , and asked to sample approximately from a probability distribution \mathcal{D}_{x}strings. In a search problem, we are given an input x\in\left\{ ...
  • Calmon, Flavio du Pin; Medard, Muriel; Effros, Michelle (Institute of Electrical and Electronics Engineers (IEEE), 2011-12)
    The recently introduced network equivalence results are used to create bit-pipe models that can replace multi-terminal channels within a discrete memoryless network. The goal is to create a set of simple “components” or ...
  • Dryden, Emily B.; Sena-Dias, Rosa Isabel; Guillemin, Victor W. (Elsevier, 2012-08)
    Let O[superscript 2n] be a symplectic toric orbifold with a fixed T[superscript n]-action and with a toric Kähler metric g. In [10] we explored whether, when O is a manifold, the equivariant spectrum of the Laplace operator ...
  • Sabatini, Silvia; Zara, Catalin; Guillemin, Victor W. (Springer-Verlag, 2012-05)
    Given a fiber bundle of GKM spaces, π: M → B, we analyze the structure of the equivariant K-ring of M as a module over the equivariant K-ring of B by translating the fiber bundle, π, into a fiber bundle of GKM graphs and ...
  • Haseley, Nathan Scott; Grant, Sarah Schmidt; Kaufmann, Benjamin B.; Chand, Nikhilesh S.; Hung, Deborah T. (National Academy of Sciences (U.S.), 2012-07)
    During Mycobacterium tuberculosis infection, a population of bacteria likely becomes refractory to antibiotic killing in the absence of genotypic resistance, making treatment challenging. We describe an in vitro model ...
  • Brodwin, M.; Stanford, S. A.; Gonzalez, Anthony H.; Zeimann, G. R.; Snyder, G. F.; Mancone, C. L.; Pope, A.; Eisenhardt, P. R.; Stern, D.; Alberts, S.; Ashby, M. L. N.; Brown, M. J. I.; Chary, R.-R.; Dey, Arjun; Galametz, A.; Gettings, D. P.; Jannuzi, B. T.; Moustakas, J.; Moustakas, L. A.; Miller, Eric D. (IOP Publishing, 2013-12)
    We analyze the star formation properties of 16 infrared-selected, spectroscopically confirmed galaxy clusters at 1 < z < 1.5 from the Spitzer/IRAC Shallow Cluster Survey (ISCS). We present new spectroscopic confirmation ...
  • Fox, Jacob; Pach, Janos; Sudakov, Benny; Suk, Andrew (Oxford University Press, )
    For any sequence of positive integers j_1 < j_2 < ... < j_n, the k-tuples (j_i,j_{i + 1},...,j_{i + k-1}), i=1, 2,..., n - k+1, are said to form a monotone path of length n. Given any integers n\ge k\ge 2 and q\ge 2, what ...
  • Corwin, Ivan; Sun, Xin (Institute of Mathematical Statistics, 2014-07)
    In this paper, we establish the ergodicity of the Airy line ensemble with respect to horizontal shifts. This shows that it is the only candidate for Conjecture 3.2 in Corwin & Hammond, Invent. Math. 2014, regarding the ...
  • Popescu, Gabriel; Badizadegan, Kamran; Feld, Michael S.; Dasari, Ramachandra Rao (SPIE, 2006-10)
    This article was originally published online on 18 July 2006 without Michael S. Feld in the author list. In addition, there were errors in Eq. 3. The corrected equation appears below. All online versions of the article ...
  • Chen, Jiahao; Hontz, Eric Richard; Moix, Jeremy; Van Voorhis, Troy; Welborn, Matthew Gregory; Suárez, Alberto; Movassagh, Ramis; Edelman, Alan (American Physical Society, 2012-07)
    Theoretical studies of localization, anomalous diffusion and ergodicity breaking require solving the electronic structure of disordered systems. We use free probability to approximate the ensemble-averaged density of states ...
  • Hubisz, Melissa J.; Lin, Michael F.; Kellis, Manolis; Siepel, Adam (Public Library of Science, 2011-02)
    The recent release of twenty-two new genome sequences has dramatically increased the data available for mammalian comparative genomics, but twenty of these new sequences are currently limited to ~2× coverage. Here we examine ...
  • Lopez, Cecilia Carolina; Levi, Benjamin; Cory, David G. (American Physical Society, 2009-04)
    We present a protocol for error characterization and its experimental implementation with four qubits in liquid state NMR. The method is designed to retrieve information about spatial correlations and scales as O(n[subscript ...
  • Tatikonda, .; Yuksel, S.; Como, Giacomo (Institute of Electrical and Electronics Engineers, 2009-04)
    The error exponent of Markov channels with feedback is studied in the variable-length block-coding setting. Burnashev's classic result is extended to finite-state ergodic Markov channels. For these channels, a single-letter ...
  • Tan, Vincent Yan Fu; Anandkumar, Animashree; Willsky, Alan S. (Institute of Electrical and Electronics Engineers (IEEE), 2010-07)
    The problem of composite binary hypothesis testing of Markov forest (or tree) distributions is considered. The worst-case type-II error exponent is derived under the Neyman-Pearson formulation. Under simple null hypothesis, ...
  • Tay, Wee Peng; Tsitsiklis, John N. (Institute of Electrical and Electronics Engineers (IEEE), 2011-05)
    We consider the decentralized Bayesian binary hypothesis testing problem in feedback architectures, in which the fusion center broadcasts information based on the messages of some sensors to some or all sensors in the ...
  • Xie, Kun; Doles, Jason; Hemann, Michael; Walker, Graham C. (National Academy of Sciences (U.S.), 2010-11)
    The development of cancer drug resistance is a persistent clinical problem limiting the successful treatment of disseminated malignancies. However, the molecular mechanisms by which initially chemoresponsive tumors develop ...
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