Adaptive Interaction: A Utility Maximization Approach to by Stephen J. Payne, Andrew Howes

By Stephen J. Payne, Andrew Howes

This lecture describes a theoretical framework for the behavioural sciences that holds excessive promise for theory-driven learn and layout in Human-Computer interplay. The framework is designed to take on the adaptive, ecological, and bounded nature of human behaviour. it really is designed to assist scientists and practitioners cause approximately why humans decide to behave as they do and to give an explanation for which innovations humans pick out according to software, ecology, and cognitive details processing mechanisms. A key proposal is that individuals select innovations to be able to maximise application given constraints. The framework is illustrated with a few examples together with pointing, multitasking, skim-reading, on-line buying, sign Detection idea and analysis, and the impression of acceptance on procuring judgements. Importantly, those examples span from perceptual/motor coordination, via cognition to social interplay. ultimately, the lecture discusses the difficult concept that humans search to discover optimum techniques and in addition discusses the consequences for behavioral research in HCI. desk of Contents: creation: A Framework for Cognitive technological know-how examine on HCI / heritage / sign Detection thought and Collaborative prognosis / Discretionary job Interleaving / circulate making plans / Multimodal interplay and textual content access / E-commerce / searching a number of records and read analyzing / Adaptively dispensing Cognition / E-commerce suggestions / dialogue

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Extra resources for Adaptive Interaction: A Utility Maximization Approach to Understanding Human Interaction with Technology

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Importantly, participants in all four experiments were rewarded monetarily according to a quantitative payoff scheme, and they received instruction on the nature of this payoff, and feedback, in the form of points, on their progress throughout the experiment. The currency concerned the trade-off between speed (time taken) and accuracy. Although there were small differences in the schemes, a successful pair of responses was rewarded with 100 points minus one point for every 10 ms taken to respond.

It is believed that people will adjust the time taken to make the movement so as to trade speed for accuracy. We deal with each of these questions in-turn. 1 WHERE TO AIM? To predict where a person will aim we must first understand how the selection of a button is a function of intrinsic variability in human movement. When a person moves a mouse pointer to a 32 5. MOVEMENT PLANNING target point, or when they move their finger to a place on a touch sensitive display, the actual place that the pointer/finger ends up will vary across repeated trials.

1 shows a graphical representation of Green’s rule, adapted from Stephens & Krebs (1986). What Green’s rule allows, without any complex mental computation, is behaviour sensitive to marginal rate of return. , Charnov’s Marginal Value rule in the case of single-visit movement through patches) with constrained information processing. , people sometimes chose to leave a task immediately after generating a word. This seems like a laboratory analog of the behaviour observed by González & Mark (2005), namely, changing tasks at “natural transitions” such as subgoal boundaries.

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