Now showing items 306-325 of 327

    • Trajectory and Force Control of a Direct Drive Arm 

      An, Chae Hun (1986-09-01)
      Using the MIT Serial Link Direct Drive Arm as the main experimental device, various issues in trajectory and force control of manipulators were studied in this thesis. Since accurate modeling is important for any ...
    • Translucent Procedures, Abstraction without Opacity 

      Rozas, Guillermo J. (1993-10-01)
      This report introduces TRANSLUCENT PROCEDURES as a new mechanism for implementing behavioral abstractions. Like an ordinary procedure, a translucent procedure can be invoked, and thus provides an obvious way to capture ...
    • Truth Maintenance Systems for Problem Solving 

      Doyle, Jon (1978-01-01)
      The thesis developed here is that reasoning programs which take care to record the logical justifications for program beliefs can apply several powerful, but simple, domain-independent algorithms to (1) maintain the ...
    • TYPICAL: A Knowledge Representation System for Automated Discovery and Inference 

      Haase, Kenneth W., Jr. (1987-08-01)
      TYPICAL is a package for describing and making automatic inferences about a broad class of SCHEME predicate functions. These functions, called types following popular usage, delineate classes of primitive SCHEME ...
    • Understanding and Modeling the Behavior of a Harmonic Drive Gear Transmission 

      Tuttle, Timothy D. (1992-05-01)
      In my research, I have performed an extensive experimental investigation of harmonic-drive properties such as stiffness, friction, and kinematic error. From my experimental results, I have found that these properties ...
    • Understanding Simple Picture Programs 

      Goldstein, Ira P. (1974-04-01)
      What are the characteristics of the process by which an intent is transformed into a plan and then a program? How is a program debugged? This paper analyzes these questions in the context of understanding simple turtle ...
    • Understanding Subsystems in Biology through Dimensionality Reduction, Graph Partitioning and Analytical Modeling 

      Kim, Philip Mjong-Hyon Shin (2003-02-05)
      Biological systems exhibit rich and complex behavior through the orchestrated interplay of a large array of components. It is hypothesized that separable subsystems with some degree of functional autonomy exist; deciphering ...
    • UNITRAN: A Principle-Based Approach to Machine Translation 

      Dorr, Bonnie Jean (1987-12-01)
      Machine translation has been a particularly difficult problem in the area of Natural Language Processing for over two decades. Early approaches to translation failed since interaction effects of complex phenomena in ...
    • Use of Analogy to Achieve New Expertise 

      Brown, Richard (1977-04-01)
      We will take the view that the end result of problem solving in some world should be increased expertness. In the context of computers, increasing expertness means writing programs. This thesis is about a process, ...
    • The Use of Equality in Deduction and Knowledge Representation 

      McAllester, David Allen (1980-01-01)
      This report describes a system which maintains canonical expressions for designators under a set of equalities. Substitution is used to maintain all knowledge in terms of these canonical expressions. A partial order ...
    • The Use of Grouping in Visual Object Recognition. 

      Jacobs, David W. (1988-01-01)
      The report describes a recognition system called GROPER, which performs grouping by using distance and relative orientation constraints that estimate the likelihood of different edges in an image coming from the same ...
    • Using Analogy to Acquire Commonsense Knowledge from Human Contributors 

      Chklovski, Timothy (2003-02-12)
      The goal of the work reported here is to capture the commonsense knowledge of non-expert human contributors. Achieving this goal will enable more intelligent human-computer interfaces and pave the way for computers to ...
    • Using Recurrent Networks for Dimensionality Reduction 

      Jones, Michael J. (1992-09-01)
      This report explores how recurrent neural networks can be exploited for learning high-dimensional mappings. Since recurrent networks are as powerful as Turing machines, an interesting question is how recurrent networks ...
    • Using Special-Purpose Computing to Examine Chaotic Behavior in Nonlinear Mappings 

      Nieh, Jason (1989-09-01)
      Studying chaotic behavior in nonlinear systems requires numerous computations in order to simulate the behavior of such systems. The Standard Map Machine was designed and implemented as a special computer for performing ...
    • Using Structural and Functional Information in Diagnostic Design 

      Hamscher, Walter (1983-06-01)
      We wish to design a diagnostic for a device from knowledge of its structure and function. the diagnostic should achieve both coverage of the faults that can occur in the device, and should strive to achieve specificity ...
    • A Vector Signal Processing Approach to Color 

      Sung, Kah-Kay (1992-01-01)
      Surface (Lambertain) color is a useful visual cue for analyzing material composition of scenes. This thesis adopts a signal processing approach to color vision. It represents color images as fields of 3D vectors, from ...
    • A Virtual Machine for a Type-omega Denotational Proof Language 

      III, Teodoro Arvizo (2002-06-01)
      In this thesis, I designed and implemented a virtual machine (VM) for a monomorphic variant of Athena, a type-omega denotational proof language (DPL). This machine attempts to maintain the minimum state required to ...
    • Virtual Model Control of a Biped Walking Robot 

      Pratt, Jerry E. (1995-12-01)
      The transformation from high level task specification to low level motion control is a fundamental issue in sensorimotor control in animals and robots. This thesis develops a control scheme called virtual model control ...
    • Virtual Model Control of a Hexapod Walking Robot 

      Torres, Ann L. (1996-12-01)
      Since robots are typically designed with an individual actuator at each joint, the control of these systems is often difficult and non-intuitive. This thesis explains a more intuitive control scheme called Virtual Model ...
    • Vision, Instruction, and Action 

      Chapman, David (1990-04-01)
      This thesis describes Sonja, a system which uses instructions in the course of visually-guided activity. The thesis explores an integration of research in vision, activity, and natural language pragmatics. Sonja's visual ...