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Browsing MIT Open Access Articles by Title

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  • Tegmark, Max Erik; Zaldarriaga, Matias (American Physical Society, 2009-04)
    We propose an all-digital telescope for 21 cm tomography, which combines key advantages of both single dishes and interferometers. The electric field is digitized by antennas on a rectangular grid, after which a series ...
  • Zou, Ming; De Koninck, Paul; Neve, Rachael L.; Friedrich, Rainer W. (Frontiers Research Foundation, 2014-05)
    The zebrafish has various advantages as a model organism to analyze the structure and function of neural circuits but efficient viruses or other tools for fast gene transfer are lacking. We show that transgenes can be ...
  • Agarwal, Alekh; Negahban, Sahand N.; Wainwright, Martin J. (Institute of Mathematical Statistics, 2012-10)
    Many statistical M-estimators are based on convex optimization problems formed by the combination of a data-dependent loss function with a norm-based regularizer. We analyze the convergence rates of projected gradient and ...
  • Goeke, Robert F.; Hewitt, Jacqueline N.; Morgan, Edward H.; Remillard, Ronald Alan; Williams, Christopher Leigh (IOP Publishing, 2012-10)
    We introduce the Fast Holographic Deconvolution method for analyzing interferometric radio data. Our new method is an extension of A-projection/software-holography/forward modeling analysis techniques and shares their ...
  • Bilgic, Berkin; Horn, Berthold Klaus Paul; Masaki, Ichiro (Institute of Electrical and Electronics Engineers (IEEE), 2010-08)
    We investigate a fast pedestrian localization framework that integrates the cascade-of-rejectors approach with the Histograms of Oriented Gradients (HoG) features on a data parallel architecture. The salient features of ...
  • Bilgic, Berkin; Chatnuntawech, Itthi; Fan, Audrey P.; Setsompop, Kawin; Cauley, Stephen F.; Adalsteinsson, Elfar; Wald, Lawrence (Wiley Blackwell, 2013-11)
    Purpose We introduce L2-regularized reconstruction algorithms with closed-form solutions that achieve dramatic computational speed-up relative to state of the art L1- and L2-based iterative algorithms while maintaining ...
  • Emanuel, Kerry Andrew (Springer-Verlag, 2017-05)
    Robust estimates of tropical cyclone risk can be made using large sets of storm events synthesized from historical data or from physics-based algorithms. While storm tracks can be synthesized very rapidly from statistical ...
  • Dubbs, Alexander Joseph; Seiler, Brad A.; Magnasco, Marcel O. (MIT Press, 2010-10)
    The metrization of the space of neural responses is an ongoing research program seeking to find natural ways to describe, in geometrical terms, the sets of possible activities in the brain. One component of this program ...
  • Lepage, Kyle Q.; MacDonald, Christopher J (Springer Science+Business Media, 2015-03)
    A recent report estimates that the number of simultaneously recorded neurons is growing exponentially. A commonly employed statistical paradigm using discrete-time point process models of neural activity involves the ...
  • Dillon, Joshua Shane; Liu, Adrian Chi-Yan; Tegmark, Max Erik (American Physical Society, 2013-02)
    We develop and demonstrate an acceleration of the Liu and Tegmark quadratic estimator formalism for inverse variance foreground subtraction and power spectrum estimation in 21 cm tomography from O(N[superscript 3]) to ...
  • Jungers, Raphael M.; Protasov, Vladimir Y. (Society for Industrial and Applied Mathematics, 2011-06)
    The $p$-radius characterizes the average rate of growth of norms of matrices in a multiplicative semigroup. This quantity has found several applications in recent years. We raise the question of its computability. We prove ...
  • Mirny, Leonid A.; Mitchison, Timothy J.; Maresca, Tom; Ohi, Ryoma; Groen, Aaron; Needleman, Daniel J. (American Society for Cell Biology, 2010-01)
    Metaphase spindles are steady-state ensembles of microtubules that turn over rapidly and slide poleward in some systems. Since the discovery of dynamic instability in the mid-1980s, models for spindle morphogenesis have ...
  • Pinto, Lucas; Estandian, Daniel; Xu, Min; Lee, Seung-Hee; Feng, Guoping; Dan, Yang; Goard, Michael J.; Kwan, Alex C.; Harrison, Thomas C. (Nature Publishing Group, 2013-10)
    The basal forebrain provides the primary source of cholinergic input to the cortex, and it has a crucial function in promoting wakefulness and arousal. However, whether rapid changes in basal forebrain neuron spiking in ...
  • Hassanieh, Haitham; Mayzel, Maxim; Shi, Lixin; Katabi, Dina; Orekhov, Vadislav Yu (Springer-Verlag, 2015-06)
    Increasing the dimensionality of NMR experiments strongly enhances the spectral resolution and provides invaluable direct information about atomic interactions. However, the price tag is high: long measurement times and ...
  • Paczosa, M. K.; Huseby, E. S.; Govern, Christopher Calbone; Chakraborty, Arup K (National Academy of Sciences (U.S.), 2010-04)
    Two contrasting theories have emerged that attempt to describe T-cell ligand potency, one based on the t[subscript 1/2] of the interaction and the other based on the equilibrium affinity (K[subscript D]). Here, we have ...
  • Navickas, Edvinas; Huber, Tobias M.; Hetaba, Walid; Holzlechner, Gerald; Rupp, Ghislain; Stöger-Pollach, Michael; Friedbacher, Gernot; Hutter, Herbert; Fleig, Jürgen; Chen, Yan; Yildiz, Bilge (Royal Society of Chemistry, 2015-03)
    In this study, the contribution of grain boundaries to the oxygen reduction and diffusion kinetics of La[subscript 0.8]Sr[subscript 0.2]MnO[subscript 3] (LSM) thin films is investigated. Polycrystalline LSM thin films with ...
  • Perry, Jonathan; Ousterhout, Amy Elizabeth; Balakrishnan, Hari; Shah, Devavrat; Fugal, Hans (Association for Computing Machinery, 2014-08)
    An ideal datacenter network should provide several properties, including low median and tail latency, high utilization (throughput), fair allocation of network resources between users or applications, deadline-aware ...
  • Kedlaya, Kiran S.; Umans, Christopher (Society for Industrial and Applied Mathematics, 2011-12)
    We obtain randomized algorithms for factoring degree n univariate polynomials over $\mathbb{F}_q$ requiring $O(n^{1.5 + o(1)}\,{\rm log}^{1+o(1)} q+ n^{1 + o(1)}\,{\rm log}^{2+o(1)} q)$ bit operations. When ${\rm log}\, q ...
  • Shcherbina, Anna (BioMed Central Ltd, 2014-08)
    Background High-throughput next generation sequencing technologies have enabled rapid characterization of clinical and environmental samples. Consequently, the largest bottleneck to actionable data has become sample ...
  • Bilgic, Berkin; Fan, Audrey P.; Polimeni, Jonathan R.; Cauley, Stephen F.; Bianciardi, Marta; Adalsteinsson, Elfar; Setsompop, Kawin; Wald, Lawrence (Wiley Blackwell, 2013-11)
    Purpose To enable fast reconstruction of quantitative susceptibility maps with total variation penalty and automatic regularization parameter selection. Methods ℓ[subscript 1]-Regularized susceptibility mapping is ...
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