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Browsing MIT Open Access Articles by Title

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  • Siam, Mohamed Salah; Eltahir, Elfatih A. B. (Copernicus GmbH, 2015-03)
    This study analyzes extensive data sets collected during the twentieth century and defines four modes of natural variability in the flow of the Nile River, identifying a new significant potential for improving predictability ...
  • Angrist, Joshua; Pathak, Parag; Walters, Christopher R. (American Economic Association, 2013-10)
    Lottery estimates suggest Massachusetts' urban charter schools boost achievement well beyond that of traditional urban public schools students, while nonurban charters reduce achievement from a higher baseline. The fact ...
  • Ullman, Orly; Stultz, Collin M.; Fisher, Charles K. (American Chemical Society (ACS), 2011-10)
    Given that α-synuclein has been implicated in the pathogenesis of several neurodegenerative disorders, deciphering the structure of this protein is of particular importance. While monomeric α-synuclein is disordered in ...
  • Selin, Noelle Eckley; Song, Shaojie (2013-04)
    Multiple observational analyses have identified a decreasing trend over the past decade in surface concentrations of gaseous elemental mercury (GEM), from sites in both the Northern and Southern hemisphere. We use two ...
  • Yablo, Stephen (Oxford University Press, 2012-10)
    Mark Colyvan (2010) raises two problems for ‘easy road’ nominalism about mathematical objects. The first is that a theory’s mathematical commitments may run too deep to permit the extraction of nominalistic content. Taking ...
  • Wilde, Mark M.; Guha, Saikat; Tan, Si-Hui; Lloyd, Seth (Institute of Electrical and Electronics Engineers (IEEE), 2012-07)
    An important practical open question has been to design explicit, structured optical receivers that achieve the Holevo limit in the contexts of optical communication and “quantum reading.” The Holevo limit is an achievable ...
  • Hutchinson, Ian H.; Patacchini, Leonardo (Academic Press, 2008-12)
    A new explicit time-reversible orbit integrator for the equations of motion in a static homogeneous magnetic field – called Cyclotronic integrator – is presented. Like Spreiter and Walter’s Taylor expansion algorithm, for ...
  • Blondel, Vincent D.; Gurbuzbalaban, Mert; Megretski, Alexander; Overton, Michael L. (Institute of Electrical and Electronics Engineers (IEEE), 2010-12)
    Given a family of real or complex monic polynomials of fixed degree with one fixed affine constraint on their coefficients, consider the problem of minimizing the root radius (largest modulus of the roots) or abscissa ...
  • Blondel, Vincent D.; Gurbuzbalaban, Mert; Megretski, Alexandre; Overton, Michael L. (Institute of Electrical and Electronics Engineers (IEEE), 2012-11)
    Given a family of real or complex monic polynomials of fixed degree with one affine constraint on their coefficients, consider the problem of minimizing the root radius (largest modulus of the roots) or root abscissa ...
  • Petillo, Stephanie; Schmidt, Henrik (Institute of Electrical and Electronics Engineers (IEEE), 2014-01)
    Advances in the fields of autonomy software and environmental sampling techniques for autonomous underwater vehicles (AUVs) have recently allowed for the merging of oceanographic data collection with the testing of emerging ...
  • Herr, Hugh M.; Hofmann, Andreas; Popovic, Marko (Institute of Electrical and Electronics Engineers, 2009-07)
    Recent humanoid control investigations have emphasized the importance of controlling whole-body angular momentum throughout a movement task. For typical movement tasks, such as normal walking, such controllers minimize ...
  • Grosse, Roger Baker; Salakhutdinov, Ruslan; Freeman, William T.; Tenenbaum, Joshua B. (AUAI Press, 2012-08)
    The recent proliferation of richly structured probabilistic models raises the question of how to automatically determine an appropriate model for a dataset. We investigate this question for a space of matrix decomposition ...
  • McMichael, Joseph G.; Maymon, Shay; Oppenheim, Alan V. (Institute of Electrical and Electronics Engineers (IEEE), 2011-11)
    Uniform quantizers are often modeled as additive uncorrelated noise sources. This paper explores the validity of the additive noise model in the environment of time-interleaved A/D converters. Cross-channel quantizer error ...
  • Robbel, Philipp; Roy, Deb K. (Institute of Electrical and Electronics Engineers, 2010-12)
    This paper describes a new approach to object recognition for active vision systems that integrates information across multiple observations of an object. The approach exploits the order relationship between successive ...
  • Choi, Myung Jin; Lim, Joseph Jaewhan; Torralba, Antonio; Willsky, Alan S. (Institute of Electrical and Electronics Engineers (IEEE), 2010-08)
    There has been a growing interest in exploiting contextual information in addition to local features to detect and localize multiple object categories in an image. Context models can efficiently rule out some unlikely ...
  • Dahlburg, Jill; Amatucci, William; Brown, Michael; Chan, Vincent; Chen, James; Cothran, Christopher; Chua, Damien; Dahlburg, Russell; Doschek, George; Egedal-Pedersen, Jan; Forest, Cary; Howard, Russell; Huba, Joseph; Ko, Yuan-Kuen; Krall, Jonathan; Laming, J. Martin; Lin, Robert P.; Linton, Mark; Lukin, Vyacheslav; Murphy, Ronald; Rakowski, Cara; Socker, Dennis; Tylka, Allan; Vourlidas, Angelos; Warren, Harry; Wood, Brian (Molecular Diversity Preservation International, 2010-05)
    Recent advances in space-based heliospheric observations, laboratory experimentation, and plasma simulation codes are creating an exciting new cross-disciplinary opportunity for understanding fast energy release and transport ...
  • Schwarz, J. P.; Spackman, J. R.; Perring, A. E.; Coe, H.; Liu, D.; Clarke, A. D.; Wang, Xuan; Heald, Colette L.; Ridley, David Andrew (Copernicus GmbH, 2014-10)
    Atmospheric black carbon (BC) is a leading climate warming agent, yet uncertainties on the global direct radiative forcing (DRF) remain large. Here we expand a global model simulation (GEOS-Chem) of BC to include the ...
  • Choi, Myung Jin; Chandrasekaran, Venkat; Willsky, Alan S. (Association for Computing Machinery / ACM Digital Library, 2009-06)
    We consider Gaussian multiresolution (MR) models in which coarser, hidden variables serve to capture statistical dependencies among the finest scale variables. Tree-structured MR models have limited modeling capabilities, ...
  • Kirmani, Ahmed; Colaco, Andrea B.; Wong, Franco N. C.; Goyal, Vivek K. (Optical Society of America, 2011-10)
    Range acquisition systems such as light detection and ranging (LIDAR) and time-of-flight (TOF) cameras operate by measuring the time difference of arrival between a transmitted pulse and the scene reflection. We introduce ...
  • Jiang, Hai; Hemann, Michael; Yaffe, Michael B.; Reinhardt, H. Christian (Landes Bioscience, 2009-10)
    Emerging data suggests that synthetic lethal interactions between mutated oncogenes/tumor suppressor genes and molecules involved in DNA damage signaling and repair can be therapeutically exploited to preferentially kill ...
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