Development of an ecological interfacedesign (EID) for addressing social problem of gambling is presented. Although physiology of gambling addiction cannot be influenced by EID but it is a promising step in improving...
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Development of an ecological interfacedesign (EID) for addressing social problem of gambling is presented. Although physiology of gambling addiction cannot be influenced by EID but it is a promising step in improving decision making processess of gamblers. Different project visualizations and evaluation of the design are also presented.
Although advances in computing power have greatly improved computer chess playing, human chess players still rival their computer counter-parts. Computer algorithms typically use a strategy of exhaustive search, which...
Although advances in computing power have greatly improved computer chess playing, human chess players still rival their computer counter-parts. Computer algorithms typically use a strategy of exhaustive search, which is unlikely to be used by human players. We hypothesized that human chess players recognize higher order properties of the game and use these properties to limit their need for exhaustive move searching. We used graph theoretic modeling to quantitatively determine three possible higher order properties. We then conducted an experiment by using the higher order properties to preselect moves for a typical exhaustive search chess engine. We played the enhanced chess engine against its unenhanced version in six games. The enhanced version won all six games, regardless of color played, suggesting that pre-selection of moves based on higher order properties of the game is indeed a viable strategy.
In designing large ecological displays, designers are faced with the question of how to display multiple levels of abstract information. Previous research has shown that people may perform better, in terms of diagnosi...
In designing large ecological displays, designers are faced with the question of how to display multiple levels of abstract information. Previous research has shown that people may perform better, in terms of diagnosis speed and accuracy, if multiple levels of information are presented in an integrated format (Burns, 2000). We repeated the study of Burns (2000) which looks at providing abstract information in three formats - one level at a time, windowed and integrated. We collected eye tracking data at intervals throughout the experiment. Our eye-tracker was able to collect pupil diameter measures and changes. Results showed no notable difference in pupil diameter measures between the integrated condition and the one level at a time condition, but notably higher increases in pupil diameter when abstract information was in separate windows. Furthermore, pupil diameters increased over time in the windowed condition, suggesting that workload with this display may have been increasing. These preliminary data suggest that separating levels of abstract information may increase the mental workload of operators.
We studied the impact of Ecological interfacedesign (EID) displays on mental models using the DURESS II simulator. To assess mental models we used a card sorting exercise, a network building exercise based on the Abs...
We studied the impact of Ecological interfacedesign (EID) displays on mental models using the DURESS II simulator. To assess mental models we used a card sorting exercise, a network building exercise based on the Abstraction Hierarchy, and a system behavior prediction exercise. Participants in the EID condition performed significantly better on the card sorting and network building exercises, but poorer on the prediction exercise. Our results are mixed, suggesting that EID may improve the understanding of means- end links and yet, not improve the ability to predict system behavior. The relatively limited experience of participants with the interface as well as our selection of knowledge elicitation techniques may have influenced these results. More research is needed to fully evaluate the impact of EID on mental models.
This paper presents an algorithm for extraction of phrases from text *** e algorithm builds phrases by iteratively merging bigrams according to an association *** o association measures are presented: mutual informati...
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This paper presents a Bayes document classifier using phrases as *** e phrases are extracted using a grammar that iteratively applies the rules to the sequence of words in the document. This grammar is generated from ...
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A new evolutionary algorithm for the constrained multiple destination routing problem is presented. The constrained multicast problem is characterized by a minimum cost multicast tree and a bounded end-to-end delay. I...
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A new evolutionary algorithm for the constrained multiple destination routing problem is presented. The constrained multicast problem is characterized by a minimum cost multicast tree and a bounded end-to-end delay. It has been proven that this problem is NP-complete. The proposed algorithm is based on a soft computing technique that integrates in an efficient manner the merits of genetic algorithms and concepts of the competitive learning in the artificial neural networks literature. A population based learning algorithm is utilized, among other techniques, to construct a delay bounded multicast tree. A salient feature of the algorithm is the adaptive learning concept that achieves an efficient trade-off between the exploration and exploitation of the search space.
This paper presents a new approach to understanding mental models for complex industrial systems. Using the Abstraction Hierarchy (AH) framework as a way to describe mental models, we propose an approach to assess eco...
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This paper presents a new approach to understanding mental models for complex industrial systems. Using the Abstraction Hierarchy (AH) framework as a way to describe mental models, we propose an approach to assess ecological compatibility between an operator's internal mental model and a model of the environment. In order to do so, we have combined and built upon the previous work of Rasmussen (1979) and Moray (1996). We believe that this new approach can assess ecological compatibility and ultimately provide the operator with a more accurate and complete internal mental model that reflects the reality of the environment. We argue that Ecological interfacedesign (EID) is a way to link mental models and the environment. Future work will be needed in order to assess ecological compatibility. This includes capturing and examining operators' internal mental models, and comparing them with models of the environment.
This paper presents a new approach to understanding mental models for complex industrial systems. Using the Abstraction Hierarchy (AH) framework as a way to describe mental models, we propose an approach to assess eco...
This paper presents a new approach to understanding mental models for complex industrial systems. Using the Abstraction Hierarchy (AH) framework as a way to describe mental models, we propose an approach to assess ecological compatibility between an operator's internal mental model and a model of the environment. In order to do so, we have combined and built upon the previous work of Rasmussen (1979) and Moray (1996). We believe that this new approach can assess ecological compatibility and ultimately provide the operator with a more accurate and complete internal mental model that reflects the reality of the environment. We argue that Ecological interfacedesign (EID) is a way to link mental models and the environment. Future work will be needed in order to assess ecological compatibility. This includes capturing and examining operators' internal mental models, and comparing them with models of the environment.
Work domain analysis is an approach that is moving from research to practical usage. Being highly analytical and time-intensive in its early stages, clients will search for early indications that the analysis is on tr...
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Work domain analysis is an approach that is moving from research to practical usage. Being highly analytical and time-intensive in its early stages, clients will search for early indications that the analysis is on track and relevant. This paper presents one approach for validating a work domain analysis by mapping the action patterns of operators against the work domain space developed by the analysis. This approach provides some validation the analysis, shows the use of the work domain over time in three dimensions, and provides a substantial link between the work analysis approach and traditional task-based approaches.
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