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Aproximadamente 338 registro(s) hasta el momento: (knowledge)

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Recurso libre

On Web Taxonomy Integration
Zhang, Dell - Lee, Wee Sun

Formato:	Article
Enlaces:	We address the problem of integrating objects from a source taxonomy into a master taxonomy. This problem is not only pervasive on the nowadays web, but also important to the emerging semantic web. A straightforward approach to automating this process…
Fecha:	2003-12-13
Recurso:	MIT

Recurso libre

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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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

LIGHTS: Laboratory for Information Globalization and Harmonization Technologies and Studies
Choucri, Nazli - Madnick, Stuart - Siegel, Michael - Wang, Richard

Formato:	Working Paper
Enlaces:	Three important trends - unrelenting globalization, growing worldwide electronic connectivity, and increasing knowledge intensity of economic activity - are creating new opportunities for global politics, with challenging demands for information access, interpretation, provision and overall use. This has serious implications…
Fecha:	2004-03-05
Recurso:	MIT

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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

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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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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

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Repairing Learned Knowledge Using Experience
Winston, Patrick H. - Rao, Satayjit

Formato:
Enlaces:	Explanation-based learning occurs when something useful is retained from an explanation, usually an account of how some particular problem can be solved given a sound theory. Many real-world explanations are not based on sound theory, however, and wrong things may…
Fecha:	2004-10-04
Recurso:	MIT

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ARIADNE: Pattern-Directed Inference and Hierarchical Abstraction in Protein Structure Recognition
Lathrop, Richard H. - Webster, Teresa A. - Smith, Temple F.

Formato:
Enlaces:	There are many situations in which a very detailed low-level description encodes, through a hierarchical organization, a recognizable higher-order pattern. The macro-molecular structural conformations of proteins exhibit higher order regularities whose recognition is complicated by many factors. ARIADNE searches for…
Fecha:	2004-10-04
Recurso:	MIT

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10.

Circumscribing Circumscription: A Guide to Relevance and Incompleteness
Williams, Brian C.

Formato:
Enlaces:	Intelligent agents in the physical world must work from incomplete information due to partial knowledge and limited resources. An agent copes with these limitations by applying rules of conjecture to make reasonable assumptions about what is known. Circumscription, proposed by…
Fecha:	2004-10-04
Recurso:	MIT

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11.

Priors Stabilizers and Basis Functions: From Regularization to Radial, Tensor and Additive Splines
Girosi, Federico - Jones, Michael - Poggio, Tomaso

Formato:
Enlaces:	We had previously shown that regularization principles lead to approximation schemes, as Radial Basis Functions, which are equivalent to networks with one layer of hidden units, called Regularization Networks. In this paper we show that regularization networks encompass a much…
Fecha:	2004-10-20
Recurso:	MIT

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12.

Learning together better : the structured design of learning teams
Timmers, Kendell M. (Kendell MacQueen), 1978-

Formato:	Thesis
Enlaces:	There is a great need among educators for a way to quickly assign teams in large or distance learning classrooms in a manner superior to random assignment or student self-selection. Forming teams based on knowledge of students' characteristics is too…
Fecha:	2005-06-02
Recurso:	MIT

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13.

Telematics industry dynamics and strategies for converging technologies
Luis, Rodrigo, 1973-

Formato:	Thesis
Enlaces:	The Telematics Industry faces tremendous challenges for growth. Regardless of the efforts and investment from vehicle manufacturers and suppliers, telematics has not been that profitable industry that many analyst forecasted five years ago; a 40 billion industry by 2003. This…
Fecha:	2005-06-02
Recurso:	MIT

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14.

Understanding Simple Picture Programs
Goldstein, Ira P.

Formato:
Enlaces:	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 programs. To understand…
Fecha:	2004-10-20
Recurso:	MIT

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15.

Waves, currents, and sediment transport in the surf zone along long, straight beaches
Tajima, Yoshimitsu, 1972-

Formato:	Thesis
Enlaces:	This study presents a theoretical model for predictions of near-shore hydrodynamic characteristics and the local sediment transport rate along long, straight beaches. The wave may be periodic or random, the beach may be plane or barred, and the bed may…
Fecha:	2005-10-14
Recurso:	MIT

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16.

Projective Structure from Two Uncalibrated Images: Structure from Motion and RecRecognition
Shashua, Amnon

Formato:
Enlaces:	This paper addresses the problem of recovering relative structure, in the form of an invariant, referred to as projective structure, from two views of a 3D scene. The invariant structure is computed without any prior knowledge of camera geometry, or…
Fecha:	2004-10-04
Recurso:	MIT

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17.

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

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18.

Recognition and Structure from One 2D Model View: Observations on Prototypes, Object Classes and Symmetries
Poggio, Tomaso - Vetter, Thomas

Formato:
Enlaces:	In this note we discuss how recognition can be achieved from a single 2D model view exploiting prior knowledge of an object's structure (e.g. symmetry). We prove that for any bilaterally symmetric 3D object one non- accidental 2D model view…
Fecha:	2004-10-04
Recurso:	MIT

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19.

Data and Model-Driven Selection Using Color Regions
Syeda-Mahmood, Tanveer Fathima

Formato:
Enlaces:	A key problem in model-based object recognition is selection, namely, the problem of determining which regions in the image are likely to come from a single object. In this paper we present an approach that extracts and uses color region…
Fecha:	2004-10-04
Recurso:	MIT

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20.

Automatic Analysis and Synthesis of Controllers for Dynamical Systems Based On P
Zhao, Feng

Formato:
Enlaces:	I present a novel design methodology for the synthesis of automatic controllers, together with a computational environment---the Control Engineer's Workbench---integrating a suite of programs that automatically analyze and design controllers for high-performance, global control of nonlinear systems. This work demonstrates…
Fecha:	2004-10-20
Recurso:	MIT

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21.

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

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22.

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

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23.

A Hybrid Intelligent System for Stamping Process Planning in Progressive Die Design
Zhang, W.Y. - Tor, Shu Beng - Britton, G.A.

Formato:	Article
Enlaces:	This paper presents an intelligent, hybrid system for stamping process planning in progressive die design. The system combines the flexibility of blackboard architecture with case-based reasoning. The hybrid system has the advantage that it can use past knowledge and experience…
Fecha:	2003-12-14
Recurso:	MIT

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24.

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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25.

commanimation: Creating and managing animations via speech
Kim, Hana - Kho, Nancy - Yan, Emily - Rudolph, Larry

Formato:	Article
Enlaces:	A speech controlled animation system is both a useful application program as well as a laboratory in which to investigate context aware applications as well as controlling errors. The user need not have prior knowledge or experience in animation and…
Fecha:	2003-12-13
Recurso:	MIT

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26.

Adaptive Cache-Oblivious All-to-All Operation
Chung, Shin Yee - Hsu, Wen Jing

Formato:	Article
Enlaces:	Modern processors rely on cache memories to reduce the latency of data accesses. Extensive cache misses would thus compromise the usefulness of the scheme. Cache-aware algorithms make use of the knowledge about the cache, such as the cache line size,…
Fecha:	2003-12-13
Recurso:	MIT

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27.

Automated Information Extraction to Support Biomedical Decision Model Construction: A Preliminary Design
Li, Xiaoli - Leong, Tze Yun

Formato:	Article
Enlaces:	We propose an information extraction framework to support automated construction of decision models in biomedicine. Our proposed technique classifies text-based documents from a large biomedical literature repository, e.g., MEDLINE, into predefined categories, and identifies important keywords for each category based…
Fecha:	2003-12-13
Recurso:	MIT

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28.

Building a Document Corpus for Manufacturing Knowledge Retrieval
Liu, Y. - Loh, Han Tong - Tor, Shu Beng

Formato:	Article
Enlaces:	When faced with challenging technical problems, R&D personnel would often turn to technical papers to seek inspiration for a solution. The building of a corpus of such papers and the easy retrieval of relevant papers by the user in his…
Fecha:	2003-12-14
Recurso:	MIT

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29.

A Study of Moment Recursion Models for Tactical Planning of a Job Shop: Literature Survey and Research Opportunities
Teo, Chee Chong

Formato:	Article
Enlaces:	The Moment Recursion (MR) models are a class of models for tactical planning of job shops or other processing networks. The MR model can be used to determine or approximate the first two moments of production quantities and queue lengths…
Fecha:	2003-12-15
Recurso:	MIT

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30.

A Study on the Boundary Conditions of 90° Paper Pop-up Structures
Tor, Shu Beng - Mak, K.W. - Lee, Y.T.

Formato:	Article
Enlaces:	The design of a pop-up book or card has hitherto been labour intensive with tasks of trials and errors. The constructions of collapsible pop-up structures can be demanding and inefficient without adequate knowledge of their geometric properties. This paper examines…
Fecha:	2003-12-15
Recurso:	MIT

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31.

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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32.

Segmentation and Alignment of Speech and Sketching in a Design Environment
Adler, Aaron D.

Formato:
Enlaces:	Sketches are commonly used in the early stages of design. Our previous system allows users to sketch mechanical systems that the computer interprets. However, some parts of the mechanical system might be too hard or too complicated to express in…
Fecha:	2004-10-20
Recurso:	MIT

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33.

Efficient on the fly maintenance of series-parallel relationships
Fineman, Jeremy T.

Formato:	Article
Enlaces:	A series-parallel directed acyclic graph, or SP-dag, contains nodes that are either in series or logically in parallel. We present a data structure and algorithm to efficiently determine, in a single serial walk of the dag, whether two nodes are…
Fecha:	2003-12-13
Recurso:	MIT

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34.

A Lab Scale Polymer Micro-Embossing Machine for Process Control Research
Ganesan, Bala - Hardt, David E.

Formato:	Article
Enlaces:	Micro embossing is the process of fabricating micron-sized features by plastic deformation of a work piece by means of a shaped tool or die. In our work we are concerned with hot embossing of PMMA to produce features in the…
Fecha:	2003-12-14
Recurso:	MIT

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35.

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

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36.

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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37.

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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38.

Spatiotemporal brain imaging and modeling
Lin, Fa-Hsuan, 1972-

Formato:	Thesis
Enlaces:	This thesis integrates hardware development, data analysis, and mathematical modeling to facilitate our understanding of brain cognition. Exploration of these brain mechanisms requires both structural and functional knowledge to (i) reconstruct the spatial distribution of the activity, (ii) to estimate…
Fecha:	2005-06-02
Recurso:	MIT

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39.

Vibration and crack detection in gas turbine engine compressor blades using Eddy current sensors
Lackner, Matthew, 1980-

Formato:	Thesis
Enlaces:	(cont.) in the ECS signal, no definitive method for sensing blade vibration using an ECS has yet been developed., High cycle fatigue (HCF) cracks generated by compressor blade vibrations are a common source of failure in gas turbine engines. Current…
Fecha:	2005-09-27
Recurso:	MIT

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40.

Dynamic power allocation and routing for satellite and wireless networks with time varying channels
Neely, Michael J. (Michael James), 1975-

Formato:	Thesis
Enlaces:	Satellite and wireless networks operate over time varying channels that depend on attenuation conditions, power allocation decisions, and inter-channel interference. In order to reliably integrate these systems into a high speed data network and meet the increasing demand for high…
Fecha:	2005-05-17
Recurso:	MIT

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41.

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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42.

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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43.

Building internal knowledge networks in the multinational corporation : a study of international research and development
Sommer, Robert W. (Robert William)

Formato:	Thesis
Enlaces:	by Robert W. Sommer., Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1992., Title as it appears in the M.I.T. Graduate List, June 1992: Building internal knowledge networks in multinational corporations, a study of cross-border research and development., Includes…
Fecha:	2005-08-15
Recurso:	MIT

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44.

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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45.

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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46.

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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47.

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

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48.

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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49.

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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50.

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