Posts Tagged: modeling

Paper: Melioration dominates maximization

There is no reason to suppose that most human beings are
engaged in maximizing anything unless it be unhappiness,
and even this with incomplete success.
R.H. Coase (1980), The Firm, the Market, and the Law, p. 4

[Copyright neth.de, 2006]:

Hans Neth, Chris Sims, Wayne Gray (2006). Melioration dominates maximization: Stable suboptimal performance despite global feedback. Paper presented at CogSci 2006.

Hansjörg Neth, Chris R. Sims, Wayne D. Gray

Melioration dominates maximization: Stable suboptimal performance despite global feedback

Abstract:  Situations that present individuals with a conflict between local and global gains often evoke a behavioral pattern known as melioration — a preference for immediate rewards over higher long-term gains.  Using a variant of a binary forced- choice paradigm by Tunney & Shanks (2002), we explored the potential role of global feedback as a means to reduce this bias. 

Paper: Integrated models of cognitive systems

Michael J. Schoelles, Hansjörg Neth, Christopher W. Myers, Wayne D. Gray

Steps towards integrated models of cognitive systems:  A levels-of-analysis approach to comparing human performance to model predictions in a complex task environment

Abstract:  Attempts to model complex task environments can serve as benchmarks that enable us to assess the state of cognitive theory and to identify productive topics for future research.  Such models must be accompanied by a thorough examination of their fit to overall performance as well as their detailed fit to the microstructure of performance.  We provide an example of this approach in our Argus Prime model of a complex simulated radar operator task that combines real-time demands on human cognitive, perceptual, and action with a dynamic decision-making task.  The generally good fit of the model to overall performance is a mark of the power of contemporary cognitive theory and architectures of cognition.  The multiple failures of the model to capture fine-grained details of performance mark the limits of contemporary theory and signal productive areas for future research.

Paper: simBorgs modeling dynamic decision making


For the exogenously extended organizational complex
functioning as an integrated homeostatic system unconsciously,
we propose the term “cyborg”.
M.E. Clynes and N.S. Kline (1960), Cyborgs and Space (Astronautics, 13)

[Copyright neth.de, 2004–2014]:

Chris Myers, Hans Neth, Mike Schoelles, Wayne Gray (2004): The simBorg approach to modeling a dynamic decision-making task. ICCM 6, CMU, Pittsburgh, USA.

Christopher W. Myers, Hansjörg Neth, Michael J. Schoelles, Wayne D. Gray

The simBorg approach to modeling a dynamic decision-making task

Abstract:  The simulated cyborg (or, simBorg) approach blends computational embodied-cognitive models of interactive behavior with artificial intelligence based components in a simulated task environment (Gray, Schoelles, & Veksler, 2004).  simBorgs combine human and machine components. This combination of high fidelity cognitive modeling (human) and AI (machine) facilitates the development of families of models that allow the modeler to hold components (memory, vision, etc) at different levels of expertise without concern for cognitive plausibility. For example, rather than modeling human problem solving, the modeler can rely on various black-box techniques (i.e., cognitively implausible AI), thereby focusing on predicting how subtle differences in costs and benefits in interactive methods affect performance and errors. The current modeling endeavor adopts the simBorg approach in order to build a family of interactive decision-making agents.