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Aproximadamente 297 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 Hypothetical Monologue Illustrating the Knowledge Underlying Program Analysis
Shrobe, Howard E. - Waters, Richard C. - Sussman, Gerald J.

Formato:
Enlaces:	Automated Program Analysis is the process of discovering decompositions of a system into sub-units such that the behavior of the whole program can be inferred from the behavior of its parts. Analysis can be employed to increase the explanatory power…
Fecha:	2004-10-01
Recurso:	MIT

Recurso libre

Classifying Objects from Visual Information
Bobick, Aaron - Richards, Whitman

Formato:
Enlaces:	Consider a world of 'objects.' Our goal is to place these objects into categories that are useful to the observer using sensory data. One criterion for utility is that the categories allow the observer to infer the object's potential behaviors,…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

Formalizing Reusable Software Components in the Programmer's Apprentice
Rich, Charles - Waters, Richard C.

Formato:
Enlaces:	There has been a long-standing desire in computer science for a way of collecting and using libraries of standard software components. The limited success in actually doing this stems not from any resistance to the idea, nor from any lack…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

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

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

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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

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

Recurso libre

10.

Hierarchical Object Recognition Using Libraries of Parameterized Model Sub-Parts
Ettinger, Gil J.

Formato:
Enlaces:	This thesis describes the development of a model-based vision system that exploits hierarchies of both object structure and object scale. The focus of the research is to use these hierarchies to achieve robust recognition based on effective organization and indexing…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

11.

Inspection Methods in Programming
Rich, Charles

Formato:
Enlaces:	The work reported here lies in the area of overlap between artificial intelligence software engineering. As research in artificial intelligence, it is a step towards a model of problem solving in the domain of programming. In particular, this work focuses…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

12.

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

13.

Effects of surface properties on solder bump formation by direct droplet deposition
Hsiao, Wen Kai, 1972-

Formato:	Thesis
Enlaces:	Recent advances in microdroplet generation and deposition processes have made it possible to directly form solder bumps on integrated circuits using micron-sized molten metal droplets. The direct droplet deposition bumping process can potentially produce uniform-sized bumps more economically than the…
Fecha:	2005-09-06
Recurso:	MIT

Recurso libre

14.

Test Generation Guided Design for Testability
Wu, Peng

Formato:
Enlaces:	This thesis presents a new approach to building a design for testability (DFT) system. The system takes a digital circuit description, finds out the problems in testing it, and suggests circuit modifications to correct those problems. The key contributions of…
Fecha:	2004-10-20
Recurso:	MIT

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15.

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

16.

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

17.

Generating Circuit Tests by Exploiting Designed Behavior
Shirley, Mark Harper

Formato:
Enlaces:	This thesis describes two programs for generating tests for digital circuits that exploit several kinds of expert knowledge not used by previous approaches. First, many test generation problems can be solved efficiently using operation relations, a novel representation of circuit…
Fecha:	2004-10-20
Recurso:	MIT

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18.

A Lexical Conceptual Approach to Generation for Machine Translation
Dorr, Bonnie J.

Formato:
Enlaces:	Current approaches to generation for machine translation make use of direct-replacement templates, large grammars, and knowledge-based inferencing techniques. Not only are rules language-specific, but they are too simplistic to handle sentences that exhibit more complex phenomena. Furthermore, these systems are…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

19.

Formalizing knowledge used in spectrogram reading : acoustic and perceptual evidence from stops

Formato:
Enlaces:	Lori Faith Lamel., Also issued as Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1988., Includes bibliographical references., Supported by the Defense Advanced Research Projects Agency, Vinton-Hayes, Bell Laboratories (GRPW), and Inference Corporation.
Fecha:	2004-03-03
Recurso:	MIT

Recurso libre

20.

Model-Based Reasoning: Troubleshooting
Davis, Randall - Hamscher, Walter C.

Formato:
Enlaces:	To determine why something has stopped working, it is useful to know how it was supposed to work in the first place. That simple observation underlies some of the considerable interest generated in recent years on the topic of model-based…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

21.

Intelligence in Scientific Computing
Abelson, Harold - Eisenberg, Michael - Halfact, Mathew - Katzenelson, Jacob - Sacks, Elisha - Sussman, Gerald Jay - Wisdom, Jack - Yip, Ken

Formato:
Enlaces:	Combining numerical techniques with ideas from symbolic computation and with methods incorporating knowledge of science and mathematics leads to a new category of intelligent computational tools for scientists and engineers. These tools autonomously prepare simulation experiments from high-level specifications of…
Fecha:	2004-10-04
Recurso:	MIT

Recurso libre

22.

The Use of Grouping in Visual Object Recognition.
Jacobs, David W.

Formato:
Enlaces:	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 object. The thesis presents both a theoretical analysis…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

23.

Control of Vibration in Mechanical Systems Using Shaped Reference Inputs
Meckl, Peter Heinrich

Formato:
Enlaces:	Dynamic systems which undergo rapid motion can excite natural frequencies that lead to residual vibration at the end of motion. This work presents a method to shape force profiles that reduce excitation energy at the natural frequencies in order to…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

24.

Model-Based Troubleshooting of Digital Systems
Hamscher, Walter Charles

Formato:
Enlaces:	This thesis describes a methodology, a representation, and an implemented program for troubleshooting digital circuit boards at roughly the level of expertise one might expect in a human novice. Existing methods for model-based troubleshooting have not scaled up to deal…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

25.

Street science : the fusing of local and professional knowledge in environmental policy
Coburn, Jason

Formato:	Thesis
Enlaces:	his dissertation analyzes how local knowledge improves environmental decisions. The premise is that controlling pollution and addressing public health disparities are not problems that professionals alone can solve. Concerned lay publics, especially low-income populations and people of color that experience…
Fecha:	2005-08-23
Recurso:	MIT

Recurso libre

26.

Border-crossing knowledge networking among multinational firms : the case of R&D facilities
Shirvani-Mahdavi, Ali (Ali Agha), 1965-

Formato:	Thesis
Enlaces:	(cont.) which is expected, given their additional knowledge resources. The respondents' urgency in looking for the relevant knowledge is the primary explanation for this difference between the two networks. This difference in knowledge networking among the different groups did not…
Fecha:	2005-09-27
Recurso:	MIT

Recurso libre

27.

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

28.

Re-engineering knowledge networks for development
Raghavan, Amrith, 1976-

Formato:	Thesis
Enlaces:	This thesis examines the evolution of Internet based knowledge networks (e-knowledge networks) in the domain of sustainable development. The objective of this thesis is to use an engineering systems approach to understand knowledge networks, identify the barriers to their sustainability…
Fecha:	2005-06-02
Recurso:	MIT

Recurso libre

29.

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

30.

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

31.

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

32.

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

33.

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

34.

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

35.

Using Analogy to Acquire Commonsense Knowledge from Human Contributors
Chklovski, Timothy

Formato:
Enlaces:	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 reason about our world. In the domain…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

36.

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

Recurso libre

37.

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

Recurso libre

38.

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

39.

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

40.

The Design and Implementation of a Corporate Householding Knowledge Processor to Improve Data Quality
Madnick, Stuart - Wang, Richard - Xian, Xiang

Formato:	Working Paper
Enlaces:	Advances in Corporate Householding are needed to address certain categories of data quality problems caused by data misinterpretation. In this paper, we first summarize some of these data quality problems and our more recent results from studying corporate householding applications…
Fecha:	2004-02-06
Recurso:	MIT

Recurso libre

41.

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

42.

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

43.

Learning Commonsense Categorical Knowledge in a Thread Memory System
Stamatoiu, Oana L.

Formato:
Enlaces:	If we are to understand how we can build machines capable of broad purpose learning and reasoning, we must first aim to build systems that can represent, acquire, and reason about the kinds of commonsense knowledge that we humans have…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

44.

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

Recurso libre

45.

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

Recurso libre

46.

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

47.

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

48.

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

49.

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

50.

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