Now showing items 225-244 of 327

    • RABBIT: A Compiler for SCHEME 

      Steele, Guy Lewis, Jr. (1978-05-01)
      We have developed a compiler for the lexically-scoped dialect of LISP known as SCHEME. The compiler knows relatively little about specific data manipulation primitives such as arithmetic operators, but concentrates ...
    • A Radial Basis Function Approach to Financial Time Series Analysis 

      Hutchinson, James M. (1993-12-01)
      Nonlinear multivariate statistical techniques on fast computers offer the potential to capture more of the dynamics of the high dimensional, noisy systems underlying financial markets than traditional models, while ...
    • Reasoning from Incomplete Knowledge in a Procedural Deduction System 

      Moore, Robert Carter (1975-12-01)
      One very useful idea in AI research has been the notion of an explicit model of a problem situation. Procedural deduction languages, such as PLANNER, have been valuable tools for building these models. But PLANNER and its ...
    • Reasoning Modeled as a Society of Communicating Experts 

      Steels, Luc (1979-06-01)
      This report describes a domain independent reasoning system. The system uses a frame-based knowledge representation language and various reasoning techniques including constraint propagation, progressive refinement, ...
    • Recognition of Topological Invariants by Iterative Arrays 

      Beyer, Wendel Terry (1969-10-01)
      A study is made of the recognition and transformation of figures by iterative arrays of finite state automata. A figure is a finite rectangular two-dimensional array of symbols. The iterative arrays considered are ...
    • Recognizing 3-D Objects Using 2-D Images 

      Jacobs, David W. (1993-04-01)
      We discuss a strategy for visual recognition by forming groups of salient image features, and then using these groups to index into a data base to find all of the matching groups of model features. We discuss the most ...
    • Reconfigurable Architectures for General-Purpose Computing 

      DeHon, Andre (1996-09-01)
      General-purpose computing devices allow us to (1) customize computation after fabrication and (2) conserve area by reusing expensive active circuitry for different functions in time. We define RP-space, a restricted ...
    • Redundant Sensors for Mobile Robot Navigation 

      Flynn, Anita M. (1985-09-01)
      Redundant sensors are needed on a mobile robot so that the accuracy with which it perceives its surroundings can be increased. Sonar and infrared sensors are used here in tandem, each compensating for deficiencies in ...
    • Reflectance Map Techniques for Analyzing Surface Defects in Metal Castings 

      Woodham, Robert J. (1978-06-01)
      This report explores the relation between image intensity and object shape. It is shown that image intensity is related to surface orientation and that a variation in image intensity is related to surface curvature. ...
    • Region-Based Feature Interpretation for Recognizing 3D Models in 2D Images 

      Clemens, David T. (1991-06-01)
      In model-based vision, there are a huge number of possible ways to match model features to image features. In addition to model shape constraints, there are important match-independent constraints that can efficiently ...
    • Reinforcement Learning by Policy Search 

      Peshkin, Leonid (2003-02-14)
      One objective of artificial intelligence is to model the behavior of an intelligent agent interacting with its environment. The environment's transformations can be modeled as a Markov chain, whose state is partially ...
    • A Reinforcement-Learning Approach to Power Management 

      Steinbach, Carl (2002-05-01)
      We describe an adaptive, mid-level approach to the wireless device power management problem. Our approach is based on reinforcement learning, a machine learning framework for autonomous agents. We describe how our ...
    • Reliable Interconnection Networks for Parallel Computers 

      Dennison, Larry R. (1991-10-01)
      This technical report describes a new protocol, the Unique Token Protocol, for reliable message communication. This protocol eliminates the need for end-to-end acknowledgments and minimizes the communication effort ...
    • Representation and Detection of Shapes in Images 

      Felzenszwalb, Pedro F. (2003-08-08)
      We present a set of techniques that can be used to represent and detect shapes in images. Our methods revolve around a particular shape representation based on the description of objects using triangulated polygons. This ...
    • The Representation of Image Texture 

      Riley, Michael Dennis (1981-09-01)
      This thesis explores how to represent image texture in order to obtain information about the geometry and structure of surfaces, with particular emphasis on locating surface discontinuities. Theoretical and psychophysical ...
    • Representing and Reasoning About Change in Geologic Interpretation 

      Simmons, Reid Gordon (1983-12-01)
      Geologic interpretation is the task of inferring a sequence of events to explain how a given geologic region could have been formed. This report describes the design and implementation of one part of a geologic interpretation ...
    • Representing Knowledge of Large-Scale Space 

      Kuipers, Benjamin J. (1977-07-01)
      This dissertation presents a model of the knowledge a person has about the spatial structure of a large-scale environment: the "cognitive map". The functions of the cognitive map are to assimilate new information about ...
    • Residual Vibration Reduction in Computer Controlled Machines 

      Singer, Neil C. (1989-02-01)
      Control of machines that exhibit flexibility becomes important when designers attempt to push the state of the art with faster, lighter machines. Three steps are necessary for the control of a flexible planet. First, ...
    • Robot Motion Vision by Fixation 

      Taalebinezhaad, M. Ali (1992-09-01)
      In many motion-vision scenarios, a camera (mounted on a moving vehicle) takes images of an environment to find the "motion'' and shape. We introduce a direct-method called fixation for solving this motion-vision problem ...
    • Robust 2-D Model-Based Object Recognition 

      Cass, Todd A. (1988-05-01)
      Techniques, suitable for parallel implementation, for robust 2D model-based object recognition in the presence of sensor error are studied. Models and scene data are represented as local geometric features and robust ...