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A suite of games to estimate the severity of nystagmus
No full textNystagmus is a condition of rapid, uncontrollable eye movement. It affects ca. 24 out of 1 0, 0 0 0 people in the general population. Measuring the impact of nystagmus on visual acuity remains challenging, as patients often perform well on standard tests like Snellen charts. For this reason we have created a suite of games, Brightsight Burgers, with simple mechanics measuring specific player performance metrics related to nystagmus. Our preliminary result indicate the potential effectiveness of games as tools for health assessment in this context. We provide a detailed description of the games developed, the incorporation of player performance metrics for assessment of the severity of the nystagmus condition, and describe results of a preliminary analysis and insights gained. These preliminary results indicate that healthy subjects take significant less time to finish any of the assigned tasks in any of the games developed, as compared to subjects with nystagmus.</p
OLAF - a general modelling system to evaluate and optimize the location of an air polluting facility
No full textCoincidence conditions in multifaciity location problems with positive and negative weights
No full textIn minisum multifacility location problems one has to find locations for some new facilities, such that the weighted sum of distances between the new and a certain number of old facilities with known locations is minimized. In this kind of problem, the optimal locations of clusters of facilities frequently tend to coincide. By testing conditions for coincidence, one has the opportunity to collapse some or even all facilities coinciding at an optimal point into one. In this way, the dimension of the problem and the degree of nondifferentiability is reduced. Several conditions for coincidence have been published recently. In this paper, these conditions are extended and improved with respect to new sufficient coincidence conditions for location problems with attracting and repelling facilities. An example shows that these new conditions detect more coincidences than the conditions which are known so far, even if all facilities involved are attracting ones.</p
OLAF - a general modeling system to evaluate and optimize the location of a air polluting facility
No full textCoincidence conditions in multifacility location problems with positive and negative weights
No full text
Review of Numerical Optimization (by J. Frederic Bonnans, J. Charles Guilbert, Claude Lemarechal & Claudia A. Sagastizabal)
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