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Browsing MIT Open Access Articles by Title

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  • Exploiting cross-channel quantizer error correlation in time-interleaved analog-to-digital converters 
    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 ...
  • Exploiting feature dynamics for active object recognition 
    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 ...
  • Exploiting Hierarchical Context on a Large Database of Object Categories 
    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 ...
  • Exploiting Laboratory and Heliophysics Plasma Synergies 
    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 ...
  • Exploiting simultaneous observational constraints on mass and absorption to estimate the global direct radiative forcing of black carbon and brown carbon 
    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 ...
  • Exploiting sparse markov and covariance structure in multiresolution models 
    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, ...
  • Exploiting sparsity in time-of-flight range acquisition using a single time-resolved sensor 
    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 ...
  • Exploiting synthetic lethal interactions for targeted cancer therapy 
    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 ...
  • Exploiting Topographical Texture To Impart Icephobicity 
    Meuler, Adam J.; McKinley, Gareth H.; Cohen, Robert E. (American Chemical Society (ACS), 2010-12)
    Appropriately structured topographical features that are found in nature (e.g,, the lotus leaf) or that are produced synthetically (e.g., via lithography) can impart superhydrophobic properties to surfaces. Water beads up ...
  • Exploiting topological constraints to reveal buried sequence motifs in the membrane-bound N-linked oligosaccharyl transferases 
    Imperiali, Barbara; Jaffee, Marcie Beth (American Chemical Society (ACS), 2011-08)
    The central enzyme in N-linked glycosylation is the oligosaccharyl transferase (OTase), which catalyzes glycan transfer from a polyprenyldiphosphate-linked carrier to select asparagines within acceptor proteins. PglB from ...
  • Exploration of in-fiber nanostructures from capillary instability 
    Deng, D. S.; Nave, Jean-Christophe; Liang, X.; Johnson, Steven G.; Fink, Yoel (Optical Society of America, 2011-08)
    A new class of multi-material fiber that incorporates micrometer-thickness concentric-cylindrical sheets of glass into polymer matrix has emerged. The ultimate lower limit of feature size and recent observation of interesting ...
  • An exploration of the role of principal inertia components in information theory 
    Calmon, Flavio P.; Varia, Mayank; Medard, Muriel (Institute of Electrical and Electronics Engineers (IEEE), 2014-11)
    The principal inertia components of the joint distribution of two random variables X and Y are inherently connected to how an observation of Y is statistically related to a hidden variable X. In this paper, we explore this ...
  • An Exploration of the Role of System Level Variable Choice in Multidisciplinary Design 
    Honda, Tomonori; Ciucci, Francesco; Kansara, Saket; Lewis, Kemper E.; Yang, Maria (American Institute of Aeronautics and Astronautics (AIAA), 2010-09)
    The process of designing large engineering systems can involve extensive sharing of resources among many competing subsystems. These resources may be represented as design parameters that are shared between the system ...
  • Exploration of the Transition from the Hydrodynamiclike to the Strongly Kinetic Regime in Shock-Driven Implosions 
    Hoffman, N. M.; Amendt, P. A.; Atzeni, S.; Glebov, V. Yu.; Stoeckl, C.; Seka, W.; Marshall, F. J.; Delettrez, J. A.; Sangster, T. C.; Betti, R.; Goncharov, V. N.; Meyerhofer, D. D.; Skupsky, S.; Bellei, C.; Pino, J.; Wilks, S. C.; Kagan, Grigory Alexandrovich; Molvig, Kim; Nikroo, A.; Rosenberg, Michael Jonathan; Rinderknecht, Hans George; Zylstra, Alex Bennett; Li, Chikang; Seguin, Fredrick Hampton; Sio, Hong Weng; Gatu Johnson, Maria; Frenje, Johan A.; Petrasso, Richard D. (American Physical Society, 2014-05)
    Clear evidence of the transition from hydrodynamiclike to strongly kinetic shock-driven implosions is, for the first time, revealed and quantitatively assessed. Implosions with a range of initial equimolar D[superscript ...
  • Explorations of Atmosphere–Ocean–Ice Climates on an Aquaplanet and Their Meridional Energy Transports 
    Marshall, John C.; Enderton, Daniel (American Meteorological Society, 2008-07)
    The degree to which total meridional heat transport is sensitive to the details of its atmospheric and oceanic components is explored. A coupled atmosphere, ocean, and sea ice model of an aquaplanet is employed to simulate ...
  • Exploratory Analysis of a Smartphone-Based Travel Survey in Singapore 
    Zhao, Fang; Camara Pereira, Francisco; Ball, Rudi; Kim, Youngsung; Han, Yafei; Zegras, P. Christopher; Ben-Akiva, Moshe E. (Transportation Research Board of the National Academies, 2015-01)
    Future Mobility Sensing (FMS) is an innovative smartphone-based travel survey system that was field tested in 2012/2013 together with the Household Interview Travel Survey (HITS) in Singapore. This paper presents findings ...
  • Exploratory fMRI analysis without spatial normalization 
    Lashkari, Danial; Golland, Polina (Springer Berlin / Heidelberg, 2009-07)
    We present an exploratory method for simultaneous parcellation of multisubject fMRI data into functionally coherent areas. The method is based on a solely functional representation of the fMRI data and a hierarchical ...
  • EXPLORING ACCRETION AND DISK-JET CONNECTIONS IN THE LLAGN M81* 
    Miller, J. M.; Markoff, Sera B.; Rupen, M. P.; Maitra, D.; Nowak, Michael A. (IOP Publishing, 2010-08)
    We report on a year-long effort to monitor the central supermassive black hole in M81 in the X-ray and radio bands. Using Chandra and the Very Large Array, we obtained quasi-simultaneous observations of M81* on seven ...
  • Exploring causes of interannual variability in the seasonal cycles of tropospheric nitrous oxide 
    Prinn, Ronald G.; Nevison, C. D.; Dlugokencky, E.; Dutton, G. S.; Elkins, J. W.; Fraser, P. J.; Hall, B. D.; Krummel, P. B.; Langenfelds, R. L.; O'Doherty, Simon; Steele, L. P.; Weiss, R. F. (European Geosciences Union, 2011-04)
    Seasonal cycles in the mixing ratios of tropospheric nitrous oxide (N[subscript 2]O) are derived by detrending long-term measurements made at sites across four global surface monitoring networks. The detrended monthly data ...
  • Exploring features in a Bayesian framework for material recognition 
    Liu, Ce; Sharan, Lavanya; Adelson, Edward H.; Rosenholtz, Ruth (Institute of Electrical and Electronics Engineers, 2010-08)
    We are interested in identifying the material category, e.g. glass, metal, fabric, plastic or wood, from a single image of a surface. Unlike other visual recognition tasks in computer vision, it is difficult to find good, ...
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