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Aproximadamente 224 registro(s) hasta el momento: (knowledge)

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Recurso libre

Extracting and Representing Qualitative Behaviors of Complex Systems in Phase Spaces
Zhao, Feng

Formato:
Enlaces:	We develop a qualitative method for understanding and representing phase space structures of complex systems and demonstrate the method with a program, MAPS --- Modeler and Analyzer for Phase Spaces, using deep domain knowledge of dynamical system theory. Given a…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

A Comparative Analysis of Reinforcement Learning Methods
Mataric, Maja

Formato:
Enlaces:	This paper analyzes the suitability of reinforcement learning (RL) for both programming and adapting situated agents. We discuss two RL algorithms: Q-learning and the Bucket Brigade. We introduce a special case of the Bucket Brigade, and analyze and compare its…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

Phase Space Navigator: Towards Automating Control Synthesis in Phase Spaces for Nonlinear Control Systems
Zhao, Feng

Formato:
Enlaces:	We develop a novel autonomous control synthesis strategy called Phase Space Navigator for the automatic synthesis of nonlinear control systems. The Phase Space Navigator generates global control laws by synthesizing flow shapes of dynamical systems and planning and navigating system…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

Observations on Cognitive Judgments
McAllester, David

Formato:
Enlaces:	It is obvious to anyone familiar with the rules of the game of chess that a king on an empty board can reach every square. It is true, but not obvious, that a knight can reach every square. Why is…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

Automatic Design of a Maglev Controller in State Space
Zhao, Feng - Thorton, Richard

Formato:
Enlaces:	We describe the automatic synthesis of a global nonlinear controller for stabilizing a magnetic levitation system. The synthesized control system can stabilize the maglev vehicle with large initial displacements from an equilibrium, and possesses a much larger operating region than…
Fecha:	2004-10-08
Recurso:	MIT

Recurso libre

A Computational Model for the Acquisition and Use of Phonological Knowledge
Yip, Kenneth - Sussman, Gerald Jay

Formato:
Enlaces:	Does knowledge of language consist of symbolic rules? How do children learn and use their linguistic knowledge? To elucidate these questions, we present a computational model that acquires phonological knowledge from a corpus of common English nouns and verbs. In…
Fecha:	2004-10-08
Recurso:	MIT

Recurso libre

A Study of Qualitative and Geometric Knowledge in Reasoning about Motion
Forbus, Kenneth D.

Formato:
Enlaces:	Reasoning about motion is an important part of our commonsense knowledge, involving fluent spatial reasoning. This work studies the qualitative and geometric knowledge required to reason in a world that consists of balls moving through space constrained by collisions with…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

Meta-Rules: Reasoning About Control
Davis - Randall

Formato:
Enlaces:	How can we insure that knowledge embedded in a program is applied effectively? Traditionally the answer to this question has been sought in different problem solving paradigms and in different approaches to encoding and indexing knowledge. Each of these is…
Fecha:	2004-10-08
Recurso:	MIT

Recurso libre

Three-dimensional representations of video using knowledge based estimation
Holtzman, Henry Neil

Formato:	Thesis
Enlaces:	by Henry Neil Holtzman., Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Architecture, 1991., Includes bibliographical references (leaves 63-66).
Fecha:	2005-08-15
Recurso:	MIT

Recurso libre

10.

A Framework for Corporate Householding
Madnick, Stuart - Wang, Richard - Zhang, Wei

Formato:	Working Paper
Enlaces:	Previous research on corporate household and corporate householding has presented examples, literature review, and working definitions. In this paper, we first improve our understanding of the area by developing a typology of corporate householding tasks and knowledge…
Fecha:	2003-03-21
Recurso:	MIT

Recurso libre

11.

Coherent Behavior from Incoherent Knowledge Sources in the Automatic Synthesis of Numerical Computer Programs
Brown, Richard

Formato:
Enlaces:	A fundamental problem in artificial intelligence is obtaining coherent behavior in rule-based problem solving systems. A good quantitative measure of coherence is time behavior; a system that never, in retrospect, applied a rule needlessly is certainly coherent; a system suffering…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

12.

Contextural knowledge and the diffusion of the technology in construction
Brach, Ann M. (Ann Margaret), 1962-

Formato:	Thesis
Enlaces:	by Ann Margaret Bush., Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1991., Includes bibliographical references (leaves 204-208).
Fecha:	2005-09-21
Recurso:	MIT

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13.

Making "implicit" explicit--toward an account of implicit linguistic knowledge
Dwyer, Susan Jane

Formato:	Thesis
Enlaces:	by Susan Jane Dwyer., Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Linguistics and Philosophy, 1991., Includes bibliographical references (p. 280-289).
Fecha:	2005-09-21
Recurso:	MIT

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14.

Computer System for Visual Recognition Using Active Knowledge
Freuder, Eugene C.

Formato:
Enlaces:	A system for visual recognition is described, with implications for the general problem of representation of knowledge to assist control. The immediate objective is a computer system that will recognize objects in a visual scene, specifically hammers. The computer receives…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

15.

A Frame for Frames: Representing Knowledge for Recognition
Kuipers, Benjamin J.

Formato:
Enlaces:	This paper presents a version of frames suitable for representing knowledge for a class of reconition problems. An initial section gives an intuitive model of frames, and illustrates a number of desirable features of such a representation. A more technical…
Fecha:	2004-10-01
Recurso:	MIT

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16.

Creation of Computer Animation from Story Descriptions
Kahn, Kenneth Michael

Formato:
Enlaces:	This report describes a computer system that creates simple computer animation in response to high-level, vague, and incomplete descriptions of films. It makes its films by collecting and evaluating suggestions from several different bodies of knowledge. The order in which…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

17.

Consensus Knowledge Acquisition
Trice, Andrew - Davis, Randall

Formato:
Enlaces:	We have developed a method and prototype program for assisting two experts in their attempts to construct a single, consensus knowledge base. We show that consensus building can be effectively facilitated by a debugging approach that identifies, explains, and resolves…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

18.

Knowledge Partitioning in the Inter-firm Division of Labor: the case of Automotive Product Development
Takeishi, Akira

Formato:
Enlaces:	Drawing on an empirical study on automakers? management of supplier involvement in product development in Japan, this paper shows that when the design of a component is outsourced to a supplier, how much and what automakers know about the component…
Fecha:	2002-06-12
Recurso:	MIT

Recurso libre

19.

Transferring, Translating and Transforming: An Integrative Framework
Carlile, Paul

Formato:	Working Paper
Enlaces:	Organizations must establish processes for managing knowledge across boundaries because of the specialized and task-dependent forms of knowledge required to deliver products and services. To address this challenge an integrative framework is developed that identifies and integrates the value of…
Fecha:	2003-12-10
Recurso:	MIT

Recurso libre

20.

Adolf Loos and theories of architecture and the practical arts in nineteenth century Austria and Germany
Schwarzer, Mitchell William

Formato:	Thesis
Enlaces:	This dissertation investigates changes that occurred in architectural culture in respect to conditions of modernity. Large-scale industrialization and urbanization caused dramatic ruptures with traditional social and economic hierarchies, forcing a reconceptualization of the theoretical constructs underlying architecture. During the course…
Fecha:	2005-09-21
Recurso:	MIT

Recurso libre

21.

Knowledge repair
Rao, Satyajit, 1965-

Formato:	Thesis
Enlaces:	by Satyajit Rao., Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1992., Includes bibliographical references (p. 64-65).
Fecha:	2005-08-15
Recurso:	MIT

Recurso libre

22.

Knowledge Base Integration: What Can We Learn from Database Integration Research?
Lee, Jintae

Formato:
Enlaces:	This paper examines the issues and the solutions that have been studied in database (DB) integration research and tries to draw lessons from them for knowledge base (KB) integration.
Fecha:	2004-10-04
Recurso:	MIT

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23.

D-SCRIPT: A Computational Theory of Descriptions
Moore, Robert C.

Formato:
Enlaces:	This paper descries D-SCRIPT, a language for representing knowledge in artificial intelligence programs. D-SCRIPT contains a powerful formalism for descriptions, which permits the representation of statements that are problematical for other systems. Particular attention is paid to problems of opaque…
Fecha:	2004-10-01
Recurso:	MIT

Recurso libre

24.

The Structure of Mathematical Knowledge
Michener, Edwina Rissland

Formato:
Enlaces:	This report develops a conceptual framework in which to talk about mathematical knowledge. There are several broad categories of mathematical knowledge: results which contain the traditional logical aspects of mathematics; examples which contain illustrative material; and concepts which include formal…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

25.

Collaborative Engine for Distributed Mechanical Design
Ni, Qianfu - Lu, Wen Feng

Formato:	Article
Enlaces:	Effective collaboration is essential for engineers at geographically dispersed locations to accomplish good design with less iteration. Over the last several years, more and more efforts have been put into such research as many industries have distributed their product development…
Fecha:	2003-12-23
Recurso:	MIT

Recurso libre

26.

Using Structural and Functional Information in Diagnostic Design
Hamscher, Walter

Formato:
Enlaces:	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 in its diagnosis…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

27.

Reasoning Modeled as a Society of Communicating Experts
Steels, Luc

Formato:
Enlaces:	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, natural deduction and explicit control of reasoning. A computational architecture based on active objects which…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

28.

Explicit Control of Reasoning
Kleer, Johan de - Doyle, Jon - Steele, Guy L., Jr. - Sussman, Gerald Jay

Formato:
Enlaces:	The construction of expert problem-solving systems requires the development of techniques for using modular representations of knowledge without encountering combinatorial explosions in the solution effort. This report describes an approach to dealing with this problem based on making some knowledge…
Fecha:	2004-10-01
Recurso:	MIT

Recurso libre

29.

The Role of Knowledge in Visual Shape Representation
Saund, Eric

Formato:
Enlaces:	This report shows how knowledge about the visual world can be built into a shape representation in the form of a descriptive vocabulary making explicit the important geometrical relationships comprising objects' shapes. Two computational tools are offered: (1) Shapestokens are…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

30.

Qualitative Knowledge, Casual Reasoning and the Localization of Failures
Brown, Allen

Formato:
Enlaces:	This report investigates some techinques appropriate to representing the knowledge necessary for understanding a class of electronic machines -- radio receivers. A computational performance model - WATSON - is presented. WATSONs task is to isolate failures in radio receivers whose…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

31.

Transferring, Translating and Transforming: An Integrative Framework
Carlile, Paul

Formato:	Working Paper
Enlaces:	Organizations must establish processes for managing knowledge across boundaries because of the specialized and task-dependent forms of knowledge required to deliver products and services. To address this challenge an integrative framework is developed that identifies and integrates the value of…
Fecha:	2003-12-18
Recurso:	MIT

Recurso libre

32.

Qualitative and Quantitative Knowledge in Classical Mechanics
Kleer, Johan De

Formato:
Enlaces:	This thesis investigates what knowledge is necessary to solve mechanics problems. A program NEWTON is described which understands and solves problems in mechanics mini-world of objects moving on surfaces. Facts and equations such as those given in mechanics text need…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

33.

Local Versus Global Control Laws for Cooperative Agent Teams
Parker, Lynne E.

Formato:
Enlaces:	The design of the control laws governing the behavior of individual agents is crucial for the successful development of cooperative agent teams. These control laws may utilize a combination of local and/or global knowledge to achieve the resulting group behavior.…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

34.

Extracting Qualitative Dynamics from Numerical Experiments
Yip, Kenneth Man-Kam

Formato:
Enlaces:	The Phase Space is a powerful tool for representing and reasoning about the qualitative behavior of nonlinear dynamical systems. Significant physical phenomena of the dynamical system---periodicity, recurrence, stability and the like---are reflected by outstanding geometric features of the trajectories in…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

35.

Shaping Inputs to Reduce Vibration: A Vector Diagram Approach
Singhose, William

Formato:
Enlaces:	This paper describes a method for limiting vibration in flexible systems by shaping the system inputs. Unlike most previous attempts at input shaping, this method does not require an extensive system model or lengthy numerical computation; only knowledge of the…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

36.

A knowledge-based preprocessor for approximate joins in improperly designed transaction databases
Brodsky, Lloyd

Formato:	Thesis
Enlaces:	by Lloyd Brodsky., Thesis (Ph. D.)--Massachusetts Institute of Technology, Sloan School of Management, 1991., Includes bibliographical references (leaves 205-210).
Fecha:	2005-08-10
Recurso:	MIT

Recurso libre

37.

Probabilistic Solution of Inverse Problems
Marroquin, Jose Luis

Formato:
Enlaces:	In this thesis we study the general problem of reconstructing a function, defined on a finite lattice from a set of incomplete, noisy and/or ambiguous observations. The goal of this work is to demonstrate the generality and practical value of…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

38.

Spatial Knowledge
Kuipers, Benjamin

Formato:
Enlaces:	This paper introduces a model of spatial cognition to describe the states of partial knowledge that people have about the spatial structure of a large-scale environment. Spatial knowledge has several different representations, each of which captures one aspect of the…
Fecha:	2004-10-01
Recurso:	MIT

Recurso libre

39.

Issues in Model Based Troubleshooting
Hamscher, Walter - Davis, Randall

Formato:
Enlaces:	To determine why something has stopped working, it's helpful to know how it was supposed to work in the first place. This simple fact underlies recent work on a number of systems that do diagnosis from knowledge about the internal…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

40.

Exploring Object Perception with Random Image Structure Evolution
Sadr, Javid - Sinha, Pawan

Formato:
Enlaces:	We have developed a technique called RISE (Random Image Structure Evolution), by which one may systematically sample continuous paths in a high-dimensional image space. A basic RISE sequence depicts the evolution of an object's image from a random field, along…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

41.

Improving Data Quality Through Effective Use of Data Semantics
Madnick, Stuart E.

Formato:	Article
Enlaces:	Data quality issues have taken on increasing importance in recent years. In our research, we have discovered that many “data quality” problems are actually “data misinterpretation” problems – that is, problems with data semantics. In this paper, we first illustrate…
Fecha:	2003-12-13
Recurso:	MIT

Recurso libre

42.

Jokes and the Logic of the Cognitive Unconscious
Minsky, Marvin

Formato:
Enlaces:	Freud's theory of jokes explains how they overcome the mental "censors" that make it hard for us to think "forbidden" thoughts. But his theory did not work so well for humorous nonsense as for other comical subjects. In this essay…
Fecha:	2004-10-01
Recurso:	MIT

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43.

The Progressive Construction of Mind
Lawler, Robert W.

Formato:
Enlaces:	We propose a vision of the structure of knowledge and processes of learning based upon the particularity of experience. Highly specific cognitive structures are constructed through activities in limited domains of experience. For new domains, new cognitive structures develop from…
Fecha:	2004-10-01
Recurso:	MIT

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44.

On "Learnable" Representations of Knowledge: A Meaning for the Computational Metaphor
diSessa, Andrea A.

Formato:
Enlaces:	The computational metaphor which proposes the comparison of processes of mind to realizable or imaginable computer activities suggests a number of educational concerns. This paper discusses some of those concerns including procedural modes of knowledge representation and control knowledge ??owing…
Fecha:	2004-10-01
Recurso:	MIT

Recurso libre

45.

Frame-based Text Processing
Rosenberg, Steven T.

Formato:
Enlaces:	This paper presents an overview of a theory of discourse structure, and discusses a model for assimilating text into a frame-based data structure. The model has been applied to the analysis of news articles. The theory assumes sentences contain links…
Fecha:	2004-10-01
Recurso:	MIT

Recurso libre

46.

Using English For Indexing and Retrieving
Katz, Boris

Formato:
Enlaces:	This paper describes a natural language system START. The system analyzes English text and automatically transforms it into an appropriate representation, the knowledge base, which incorporates the information found in the text. The user gains access to information stored in…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

47.

Reasoning from Incomplete Knowledge in a Procedural Deduction System
Moore, Robert Carter

Formato:
Enlaces:	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 relatives are very…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

48.

Roles of Knowledge in Motor Learning
Atkeson, Christopher Granger

Formato:
Enlaces:	The goal of this thesis is to apply the computational approach to motor learning, i.e., describe the constraints that enable performance improvement with experience and also the constraints that must be satisfied by a motor learning system, describe what is…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

49.

Representing Knowledge of Large-Scale Space
Kuipers, Benjamin J.

Formato:
Enlaces:	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 the environment, to represent the current…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

50.

Introduction to the Calculus of Knowledge
Raphael, Bertram

Formato:
Enlaces:	This paper deals with the "Calculus of Knowledge", an extension of the propositional calculus in which one may reason about what other people know. Semantic and Syntactic systems are developed, certain theorems are proven, and a formal solution in the…
Fecha:	2004-10-04
Recurso:	MIT