Now showing items 21-40 of 3804

    • A general mechanism for tuning: Gain control circuits and synapses underlie tuning of cortical neurons 

      Kouh, Minjoon; Poggio, Tomaso (2004-12-31)
      Tuning to an optimal stimulus is a widespread property of neurons in cortex. We propose that such tuning is a consequence of normalization or gain control circuits. We also present a biologically plausible neural circuitry ...
    • A Machine-Checked Safety Proof for a CISC-Compatible SFI Technique 

      McCamant, Stephen (2006-05-11)
      Executing untrusted code while preserving security requires that thecode be prevented from modifying memory or executing instructionsexcept as explicitly allowed. Software-based fault isolation (SFI) or"sandboxing" enforces ...
    • A new biologically motivated framework for robust object recognition 

      Serre, Thomas; Wolf, Lior; Poggio, Tomaso (2004-11-14)
      In this paper, we introduce a novel set of features for robust object recognition, which exhibits outstanding performances on a variety ofobject categories while being capable of learning from only a fewtraining examples. ...
    • A Novel Active Contour Framework. Multi-component Level Set Evolution under Topology Control 

      Segonne, Florent; Pons, Jean-Philippe; Fischl, Bruce; Grimson, Eric (2005-06-01)
      We present a novel framework to exert a topology control over a level set evolution. Level set methods offer several advantages over parametric active contours, in particular automated topological changes. In some applications, ...
    • A Probabilistic Particle Control Approach to Optimal, Robust Predictive Control 

      Blackmore, Lars (2006-04-28)
      Autonomous vehicles need to be able to plan trajectories to a specified goal that avoid obstacles, and are robust to the inherent uncertainty in the problem. This uncertainty arises due to uncertain state estimation, ...
    • A Quantitative Comparison of Reconfigurable, Tiled, and Conventional Architectures on Bit-level Computation 

      Wentzlaff, David; Agarwal, Anant (2004-04-13)
      General purpose computing architectures are being called on to work on amore diverse application mix every day. This has been fueled by the needfor reduced time to market and economies of scale that are the hallmarksof ...
    • A Region-based Architecture for Service-Providing Distributed Systems 

      Singh, Neha (2005-05-17)
      A service-providing system consists of hosts that provide services such as data, content, computational and memory resources and data-based services to other entities in the system. Consumers that wish to use services ...
    • A Reliable Broadcast Scheme for Sensor Networks 

      Livadas, Carolos; Lynch, Nancy A. (2003-08-11)
      In this short technical report, we present a simple yet effective reliable broadcast protocol for sensor networks. This protocol disseminates packets throughout the sensor network by flooding and recovers from losses ...
    • A soft touch: Compliant Tactile Sensors for Sensitive Manipulation 

      Torres-Jara, Eduardo; Vasilescu, Iuliu; Coral, Raul (2006-03-01)
      We present the design, analysis and construction of a biologicallyinspired tactile sensor. The sensor can measure normal and lateralforces, conform to the surfaces with which it comes in contact andincrease the friction ...
    • A Stream Algorithm for the SVD 

      Strumpen, Volker; Hoffmann, Henry; Agarwal, Anant (2003-10-22)
      We present a stream algorithm for the Singular-Value Decomposition (SVD) of anM X N matrix A. Our algorithm trades speed of numerical convergence for parallelism,and derives from a one-sided, cyclic-by-rows Hestenes SVD. ...
    • A Theory of Object Recognition: Computations and Circuits in the Feedforward Path of the Ventral Stream in Primate Visual Cortex 

      Serre, T.; Kouh, M.; Cadieu, C.; Knoblich, U.; Kreiman, G.; e.a. (2005-12-19)
      We describe a quantitative theory to account for the computations performed by the feedforward path of the ventral stream of visual cortex and the local circuits implementing them. We show that a model instantiating the ...
    • A Unified Information Theoretic Framework for Pair- and Group-wise Registration of Medical Images 

      Zollei, Lilla (2006-01-25)
      The field of medical image analysis has been rapidly growing for the past two decades. Besides a significant growth in computational power, scanner performance, and storage facilities, this acceleration is partially due ...
    • A Unified Statistical and Information Theoretic Framework for Multi-modal Image Registration 

      Zollei, Lilla; Fisher, John; Wells, William (2004-04-28)
      We formulate and interpret several multi-modal registration methods inthe context of a unified statistical and information theoretic framework. A unified interpretation clarifies the implicit assumptionsof each method ...
    • Absenetee Computations in a Multiple-access Computer System 

      Deital, H.M. (1968-08)
      in multiple-access computer systems, emphasis is placed upon serving several interactive users simultaneously. However, many computations do not require user interaction, and user may therefore want to run these computations ...
    • An Abstract Architecture for Parallel Graph Reduction 

      Traub, Kenneth R. (1984-05)
      An implementation technique for functional languages that has received recent attention is graph reduction, which offers opportunity for the exploitation of parallelism by multiple processors. While several proposals for ...
    • Abstract Data Types in Stack Based Languages 

      Moss, J. Eliot B. (1978-02)
      Abstract data types are the basis of an emerging methodology of computer programming. The only existing languages supporting abstract data types directly, CLU and Simula, both require compacting garbage collection, and ...
    • An Abstract Implementation for a Generalized Data Flow Language 

      Weng, Kung-Song (1980-01)
      In this thesis we are concerned with issues arising from the need to achieve concurrency of operation with a computation on a large scale. Several factors contribute toward increasing interest in systems capable of exploiting ...
    • The Abstract MAC Layer 

      Kuhn, Fabian; Newport, Calvin; Lynch, Nancy (2009-05-11)
      A diversity of possible communication assumptions complicates the study of algorithms and lower bounds for radio networks. We address this problem by defining an Abstract MAC Layer. This service provides reliable local ...
    • The Abstract MAC Layer 

      Kuhn, Fabian; Lynch, Nancy; Newport, Calvin (2010-08-26)
      A diversity of possible communication assumptions complicates the study of algorithms and lower bounds for radio networks. We address this problem by defining an abstract MAC layer. This service provides reliable local ...
    • The Abstract MAC Layer 

      Newport, Calvin; Lynch, Nancy; Kuhn, Fabian (2009-02-21)
      A diversity of possible communication assumptions complicates the study of algorithms and lower bounds for radio networks. We address this problem by defining an Abstract MAC Layer. This service provides reliable local ...