34 research outputs found
Stretching and Bending the Frame â Green Possibilities in Popular Romantic Narratives
This article examines frame theory, popular culture, and environmental values. Reviewing frame theory across journalism, communication studies, linguistics, and fine art, it will examine in particular âcultural framingâ. Radical thought is invariably associated with the avant-garde, yet narrative or genre innovations in popular culture can also trigger âdeeperâ cognitive shifts, potentially transforming âcommon cultureâ. Citing comics, films, and animation, the main example is popular music and how Björk and British Sea Power have subverted generic and acoustic conventions (e.g. melody), and musicâs habitual romantic narratives, to re-frame humanânonhuman relationships ecologically. By stretching and manipulating frames, popular culture can adapt and engender environmental narratives for mass consumption
Square lattice Ising model susceptibility: Series expansion method and differential equation for
In a previous paper (J. Phys. A {\bf 37} (2004) 9651-9668) we have given the
Fuchsian linear differential equation satisfied by , the
``three-particle'' contribution to the susceptibility of the isotropic square
lattice Ising model. This paper gives the details of the calculations (with
some useful tricks and tools) allowing one to obtain long series in polynomial
time. The method is based on series expansion in the variables that appear in
the -dimensional integrals representing the -particle contribution to
the isotropic square lattice Ising model susceptibility . The
integration rules are straightforward due to remarkable formulas we derived for
these variables. We obtain without any numerical approximation as
a fully integrated series in the variable , where , with the conventional Ising model coupling constant. We also
give some perspectives and comments on these results.Comment: 28 pages, no figur
Learning object relationships which determine the outcome of actions
Peer reviewedPublisher PD
A Lagrangian Description of the Higher-Order Painlev\'e Equations
We derive the Lagrangians of the higher-order Painlev\'e equations using
Jacobi's last multiplier technique. Some of these higher-order differential
equations display certain remarkable properties like passing the Painlev\'e
test and satisfy the conditions stated by Jur\'a, (Acta Appl. Math.
66 (2001) 25--39), thus allowing for a Lagrangian description.Comment: 16 pages, to be published in Applied Mathematics and Computatio
Toward Self-Referential Autonomous Learning of Object and Situation Models
Most current approaches to scene understanding lack the capability to adapt object and situation models to behavioral needs not anticipated by the human system designer. Here, we give a detailed description of a system architecture for self-referential autonomous learning which enables the refinement of object and situation models during operation in order to optimize behavior. This includes structural learning of hierarchical models for situations and behaviors that is triggered by a mismatch between expected and actual action outcome. Besides proposing architectural concepts, we also describe a first implementation of our system within a simulated traffic scenario to demonstrate the feasibility of our approach
Professional vs. amateur judgment accuracy: The case of foreign exchange rates
Cataloged from PDF version of article.Highly knowledgeable people often fail to achieve highly accurate judgments, a phenomenon sometimes called the ââprocessperformance
paradox.ââ The present research tested for this paradox in foreign exchange (FX) rate forecasting. Forty professional
and 57 sophisticated amateur forecasters made one-day and one-week-ahead FX predictions in deterministic and probabilistic
formats. Among the conclusions indicated by the results are: (a) professional accuracy usually surpasses amateur accuracy, although
many amateurs outperform many professionals; (b) professionals appear to achieve high proficiency via heavy reliance on predictive
information (unlike what has been observed before, e.g., for stock prices); (c) forecast format strongly affects judgment accuracy and
processes; and (d) apparent overconfidence can transform itself into underconfidence depending on when and how forecasters must
articulate their confidence.
2003 Elsevier Science (USA). All rights reserved