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Aproximadamente 293 registro(s) hasta el momento: (knowledge)

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Recurso libre

Learning Fine Motion by Markov Mixtures of Experts
Meila, Marina - Jordan, Michael I.

Formato:
Enlaces:	Compliant control is a standard method for performing fine manipulation tasks, like grasping and assembly, but it requires estimation of the state of contact between the robot arm and the objects involved. Here we present a method to learn a…
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

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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

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Leveraging Learning and Language Via Communication Bootstrapping
Beal, Jacob

Formato:
Enlaces:	In a Communication Bootstrapping system, peer components with different perceptual worlds invent symbols and syntax based on correlations between their percepts. I propose that Communication Bootstrapping can also be used to acquire functional definitions of words and causal reasoning knowledge.…
Fecha:	2004-10-08
Recurso:	MIT

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Face Recognition from One Example View
Beymer, David - Poggio, Tomaso

Formato:
Enlaces:	If we are provided a face database with only one example view per person, is it possible to recognize new views of them under a variety of different poses, especially views rotated in depth from the original example view? We…
Fecha:	2004-10-08
Recurso:	MIT

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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

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The Computer as Coach: An Athletic Paradigm for Intellectual Education
Goldstein, Ira

Formato:
Enlaces:	Over the next five years, computer games will find their way into a vast number of American homes, creating a unique educational opportunity: the development of "computer coaches" for the serious intellectual skills required by some of these games. From…
Fecha:	2004-10-08
Recurso:	MIT

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Surface Reflectance Estimation and Natural Illumination Statistics
Dror, Ron O. - Adelson, Edward H. - Willsky, Alan S.

Formato:
Enlaces:	Humans recognize optical reflectance properties of surfaces such as metal, plastic, or paper from a single image without knowledge of illumination. We develop a machine vision system to perform similar recognition tasks automatically. Reflectance estimation under unknown, arbitrary illumination proves…
Fecha:	2004-10-08
Recurso:	MIT

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Detecting Digital Forgeries Using Bispectral Analysis
Farid, Hany

Formato:
Enlaces:	With the rapid increase in low-cost and sophisticated digital technology the need for techniques to authenticate digital material will become more urgent. In this paper we address the problem of authenticating digital signals assuming no explicit prior knowledge of the…
Fecha:	2004-10-08
Recurso:	MIT

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10.

Surviving the Information Explosion: How People Find Their Electronic Information
Alvarado, Christine - Teevan, Jaime - Ackerman, Mark S. - Karger, David

Formato:
Enlaces:	We report on a study of how people look for information within email, files, and the Web. When locating a document or searching for a specific answer, people relied on their contextual knowledge of their information target to help them…
Fecha:	2004-10-08
Recurso:	MIT

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11.

The Essential Dynamics Algorithm: Essential Results
Martin, Martin C.

Formato:
Enlaces:	This paper presents a novel algorithm for learning in a class of stochastic Markov decision processes (MDPs) with continuous state and action spaces that trades speed for accuracy. A transform of the stochastic MDP into a deterministic one is presented…
Fecha:	2004-10-08
Recurso:	MIT

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12.

Vision by Man and Machine
Poggio, Tomaso

Formato:
Enlaces:	The development of increasingly sophisticated and powerful computers in the last few decades has frequently stimulated comparisons between them and the human brain. Such comparisons will become more earnest as computers are applied more and more to tasks formerly associated…
Fecha:	2004-10-08
Recurso:	MIT

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13.

A system for the interactive classification of knowledge
Balzac, Stephen R

Formato:	Thesis
Enlaces:	by Stephen R. Balzac., Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1987., Title as it appeared in M.I.T. Graduate List, June 1987: An interactive knowledge classifier., Bibliography: leaves 111-112.
Fecha:	2005-08-08
Recurso:	MIT

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14.

Contact Sensing: A Sequential Decision Approach to Sensing Manipulation Contact
Eberman, Brian Scott

Formato:
Enlaces:	This paper describes a new statistical, model-based approach to building a contact state observer. The observer uses measurements of the contact force and position, and prior information about the task encoded in a graph, to determine the current location of…
Fecha:	2004-10-20
Recurso:	MIT

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15.

Strained Silicon on Silicon by Wafer Bonding and Layer Transfer from Relaxed SiGe Buffer
Isaacson, David M. - Taraschi, G. - Pitera, Arthur J. - Ariel, Nava - Fitzgerald, Eugene A. - Langdo, Thomas A.

Formato:	Article
Enlaces:	We report the creation of strained silicon on silicon (SSOS) substrate technology. The method uses a relaxed SiGe buffer as a template for inducing tensile strain in a Si layer, which is then bonded to another Si handle wafer. The…
Fecha:	2004-12-10
Recurso:	MIT

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16.

Knowledge trading : computational support for individual and collaborative sense-making activities
Keel, Paul E. (Paul Erich)

Formato:	Thesis
Enlaces:	(cont.) outlined. 2. Demonstration that computer systems can use the discovered relations among data items to help users search for relevant information, prioritize the data exchange between collaborating users, and visualize data in various ways. This investigation looks at how…
Fecha:	2005-09-27
Recurso:	MIT

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17.

The design and structural characterization of oligomeric beta beta alpha mini-proteins
Ali, Mayssam H. (Mayssam Hani), 1976-

Formato:	Thesis
Enlaces:	Oligomeric mini-proteins, short peptides with protein-like features, constitute valuable minimal models for the study of oligomeric proteins. Oligomerization is a common feature of cellular proteins that may confer structural and functional advantages. Oligomerization is proposed to have arisen by several…
Fecha:	2005-06-02
Recurso:	MIT

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18.

Better learning of mechanics through information technology
Regalado S., Carlos A. (Carlos Andrés Regalado Santamaría), 1971-

Formato:	Thesis
Enlaces:	(cont.) visualize complex geometric arrangements. Finally, the tools developed represent an alternative to what learning technology has always done; transmit academic knowledge to the student. These tools are an example of how IT can be used to go beyond the…
Fecha:	2005-09-27
Recurso:	MIT

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19.

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

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20.

A Framework for Low-Complexity Iterative Interference Cancellation in Communication Systems
Chan, Albert M.

Formato:	Technical Report
Enlaces:	Communication over interference channels poses challenges not present for the more traditional additive white Gaussian noise (AWGN) channels. In order to approach the information limits of an interference channel, interference mitigation techniques need to be integrated with channel coding and…
Fecha:	2004-09-20
Recurso:	MIT

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21.

Corpus-Based Techniques for Word Sense Disambiguation
Levow, Gina-Anne

Formato:
Enlaces:	The need for robust and easily extensible systems for word sense disambiguation coupled with successes in training systems for a variety of tasks using large on-line corpora has led to extensive research into corpus-based statistical approaches to this problem. Promising…
Fecha:	2004-10-04
Recurso:	MIT

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22.

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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23.

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

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24.

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

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25.

Managing revisions of rules and guidelines used in clinical information systems : exploring a hierarchical knowledge representation model
Scott-Wright, Alicia, 1949-

Formato:	Thesis
Enlaces:	One important purpose for creating clinical practice guidelines is to improve quality of care by reducing variations in practice. In the current healthcare environment, guidelines are being advocated as a means to disseminate research findings, standardize care, improve quality of…
Fecha:	2005-09-27
Recurso:	MIT

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26.

The Programmer's Apprentice Project: A Research Overview
Rich, Charles - Waters, Richard C.

Formato:
Enlaces:	The goal of the Programmer's Apprentice project is to develop a theory of how expert programmers analyze, synthesize, modify, explain, specify, verify, and document programs. This research goal overlaps both artificial intelligence and software engineering. From the viewpoint of artificial…
Fecha:	2004-10-04
Recurso:	MIT

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27.

BUILD: A Tool for Maintaining Consistency in Modular Systems
Robbins, Richard Elliot

Formato:
Enlaces:	Build is a tool for keeping modular systems in a consistent state by managing the construction tasks (e.g. compilation, linking, etc.) associated with such systems. It employs a user supplied system model and a procedural description of a task to…
Fecha:	2004-10-20
Recurso:	MIT

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28.

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

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29.

Organizational design : the integration of pharmaceutical discovery and development
Smith, Peter J. A. (Peter John Anthony), 1959-

Formato:	Thesis
Enlaces:	The decline in Pharmaceutical R&D productivity has been attributed to high clinical failure rates suggesting that targets, leads and clinical candidates may be of lower quality in recent years. Senior R&D management generally believes that a greater integration of drug…
Fecha:	2005-09-27
Recurso:	MIT

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30.

A framework for engineering knowledge representation and problem solving
Chehayeb, Fadi S

Formato:	Thesis
Enlaces:	by Fadi S. Chehayeb., Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1987., M.I.T. copy lacks leaf 4., Bibliography: v. 2, leaves 238-240.
Fecha:	2005-08-08
Recurso:	MIT

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31.

Learning New Principles from Precedents and Exercises: The Details
Winston, Patrick H.

Formato:
Enlaces:	Much Learning is done by way of studying precedents and exercises. A teacher supplies a story, gives a problem, and expects a student both to solve a problem and to discover a principle. The student must find the correspondence between…
Fecha:	2004-10-04
Recurso:	MIT

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32.

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

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33.

Flavors: Message Passing in the Lisp Machine
Weinreb, Daniel - Moon, David

Formato:
Enlaces:	The object oriented programming style used in the Smalltalk and Actor languages is available in Lisp Machine Lisp, and used by the Lisp Machine software system. It is used to perform generic operations on objects. Part of its implementation is…
Fecha:	2004-10-01
Recurso:	MIT

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34.

Expressing Mathematical Subroutines Constructively
Roylance, Gerald

Formato:
Enlaces:	The typical subroutines that compute $\\sin(x)$ and $\\exp(x)$ bear little resemblance to our mathematical knowledge of these functions: they are composed of concrete arithmetic expressions that include many mysterious numerical constants. Instead of programming these subroutines conventionally, we can express…
Fecha:	2004-10-04
Recurso:	MIT

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35.

A Proposal for a Computational Model of Anatomical and Physiological Reasoning
Smith, Brian Cantwell

Formato:
Enlaces:	The studies of anatomy and physiology are fundamental ingredients of medical education. This paper identifies six ways in which such functional knowledge serves as the underpinnings for general medical reasoning, and outlines the design of a computational model of common…
Fecha:	2004-10-04
Recurso:	MIT

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36.

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

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37.

The Impact of Processing Time Knowledge on Dynamic Job-Shop Scheduling
Wein, Lawrence M. - Ou, Jihong

Formato:	Working Paper
Enlaces:	The goal of this paper is to determine if the results for dynamic job-shop scheduling problems are affected by the assumptions made with regard to the processing time distributions and the scheduler's knowledge of the processing times. Three dynamic jobshop…
Fecha:	2004-05-28
Recurso:	MIT

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38.

A Structural Approach to Analogy
Mansour, Hormoz

Formato:
Enlaces:	There are multiple sorts of reasoning by analogy between two domains; the one with which we are concerned is a type of contextual analogy. The purpose of this paper is to see whether two domains that look analogous would be…
Fecha:	2004-10-01
Recurso:	MIT

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39.

PROGRAMMER: A Language for Writing Grammars
Winograd, Terry

Formato:
Enlaces:	This memo describes PROGRAMMER, a parser for natural language. It consists of a language for writing grammars in the form of programs, and an interpreter which can use these grammars to parse sentence. PROGRAMMER is one part of an integrated…
Fecha:	2004-10-04
Recurso:	MIT

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40.

The Computational Complexity of Two-Level Morphology
Barton, G. Edward, Jr.

Formato:
Enlaces:	Morphological analysis requires knowledge of the stems, affixes, combnatory patterns, and spelling-change processes of a language. The computational difficulty of the task can be clarified by investigating the computational characteristics of specific models of morphologial processing. The use of finite-state…
Fecha:	2004-10-04
Recurso:	MIT

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41.

Conclusions from the Commodity Expert Project
Stansfield, James L.

Formato:
Enlaces:	The goal of the commodity expert project was to develop a prototype program that would act as an intelligent assistant to a commodity market analyst. Since expert analysis must deal with very large, yet incomplete, data bases of unreliable facts…
Fecha:	2004-10-01
Recurso:	MIT

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42.

Shape from Shading: A Method for Obtaining the Shape of a Smooth Opaque Object from One View
Horn, Berthold K.P.

Formato:
Enlaces:	A method will be described for finding the shape of a smooth apaque object form a monocular image, given a knowledge of the surface photometry, the position of the lightsource and certain auxiliary information to resolve ambiguities. This method is…
Fecha:	2004-10-20
Recurso:	MIT

Recurso libre

43.

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

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44.

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

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45.

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

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46.

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

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47.

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

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48.

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

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49.

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

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50.

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