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A translation approach to portable ontology specifications

by Thomas R. Gruber - KNOWLEDGE ACQUISITION , 1993
"... To support the sharing and reuse of formally represented knowledge among AI systems, it is useful to define the common vocabulary in which shared knowledge is represented. A specification of a representational vocabulary for a shared domain of discourse — definitions of classes, relations, functions ..."
Abstract - Cited by 3365 (9 self) - Add to MetaCart
, including frame-based systems as well as relational languages. This allows researchers to share and reuse ontologies, while retaining the computational benefits of specialized implementations. We discuss how the translation approach to portability addresses several technical problems. One problem is how

On the algorithmic implementation of multi-class kernel-based vector machines

by Koby Crammer, Yoram Singer, Nello Cristianini, John Shawe-taylor, Bob Williamson - Journal of Machine Learning Research
"... In this paper we describe the algorithmic implementation of multiclass kernel-based vector machines. Our starting point is a generalized notion of the margin to multiclass problems. Using this notion we cast multiclass categorization problems as a constrained optimization problem with a quadratic ob ..."
Abstract - Cited by 559 (13 self) - Add to MetaCart
objective function. Unlike most of previous approaches which typically decompose a multiclass problem into multiple independent binary classification tasks, our notion of margin yields a direct method for training multiclass predictors. By using the dual of the optimization problem we are able

Missing data: Our view of the state of the art

by Joseph L. Schafer, John W. Graham - Psychological Methods , 2002
"... Statistical procedures for missing data have vastly improved, yet misconception and unsound practice still abound. The authors frame the missing-data problem, review methods, offer advice, and raise issues that remain unresolved. They clear up common misunderstandings regarding the missing at random ..."
Abstract - Cited by 739 (1 self) - Add to MetaCart
at random (MAR) concept. They summarize the evidence against older procedures and, with few exceptions, dis-courage their use. They present, in both technical and practical language, 2 general approaches that come highly recommended: maximum likelihood (ML) and Bayes-ian multiple imputation (MI). Newer

Motivation through the Design of Work: Test of a Theory. Organizational Behavior and Human Performance,

by ] Richard Hackman , Grec R Oldham , 1976
"... A model is proposed that specifies the conditions under which individuals will become internally motivated to perform effectively on their jobs. The model focuses on the interaction among three classes of variables: (a) the psychological states of employees that must be present for internally motiv ..."
Abstract - Cited by 622 (2 self) - Add to MetaCart
outcomes associated with routine, repetitive jobs. The theory offers less guidance for the design of work that will elicit and maintain positive and self-reinforcing work motivation. Socio-technical systems theory. The socio-technical systems approach to work redesign provides significant insight

Smooth Stabilization Implies Coprime Factorization

by Eduardo D. Sontag , 1989
"... This paper shows that coprime right factorizations exist for the input to state mapping of a continuous time nonlinear system provided that the smooth feedback stabilization problem be solvable for this system. In particular, it follows that feedback linearizable systems admit such factorizations. I ..."
Abstract - Cited by 472 (62 self) - Add to MetaCart
. In order to establish the result a Lyapunov-theoretic definition is proposed for "bounded input bounded output" stability. The main technical fact proved relates the notion of stabilizability studied in the state space nonlinear control literature to a notion of stability under bounded control

The Economics of networks

by Nicholas Economides - INTERNATIONAL JOURNAL OF INDUSTRIAL ORGANIZATION , 1996
"... I analyze the salient features of networks and point out the similarities between the economic structure of networks and the structure of vertically related industries. The analysis focuses on positive consumption and production externalities, commonly called network externalities. I discuss their s ..."
Abstract - Cited by 462 (29 self) - Add to MetaCart
their sources and their effects on pricing and market structure. I distinguish between results that do not depend on the underlying industry microstructure (the 'macro' approach) and those that do (the 'micro' approach). I analyze the issues of compatibility, coordination to technical

Analysis of Technical Approaches (ATA)

by Web-based Visualization, Dr. Don Brutzman , 2003
"... Studies & Prototyping This JSB ATA Study Paper is the author's work product and does not reflect ..."
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Studies & Prototyping This JSB ATA Study Paper is the author's work product and does not reflect

References Discussion Technical Approach

by unknown authors
"... Our goal is to simulate reflections on surfaces of varying roughness in a post-process. For each pixel of a surface in an image we want to find the reflected geometry of the near- ..."
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Our goal is to simulate reflections on surfaces of varying roughness in a post-process. For each pixel of a surface in an image we want to find the reflected geometry of the near-

Technical Approach References

by Kate Williams, Borja González-valdés, Zhongliang Chen, Luis Tirado, José Ángel, Martínez- Lorenzo, Ray Tracing Algorithm
"... Conventional methods such as the Method of Moments or Finite Difference Frequency Domain (FDFD) offer exact solutions to scattering problems, but are slow (minutes or hours) in 3D. Ray tracing speed depends on the number of triangles, which can be discretized as large as a wavelength. Ray tracing, u ..."
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Conventional methods such as the Method of Moments or Finite Difference Frequency Domain (FDFD) offer exact solutions to scattering problems, but are slow (minutes or hours) in 3D. Ray tracing speed depends on the number of triangles, which can be discretized as large as a wavelength. Ray tracing, unlike conventional methods, can also compute multiple frequencies at no additional cost, offering scattered field solutions on the order of seconds.

TECHNICAL APPROACH TO DEVELOP NUTRIENT

by Kyonga Vada Yoon, Eric D. Stein, California Estuaries, Martha Sutula, Clayton Creager, Gary Wortham, Martha Sutula
"... 2007 Prepared for: ..."
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2007 Prepared for:
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