منابع مشابه
Avoidance Coupling
We examine the question of whether a collection of random walks on a graph can be coupled so that they never collide. In particular, we show that on the complete graph on n vertices, with or without loops, there is a Markovian coupling keeping apart Ω(n/ logn) random walks, taking turns to move in discrete time.
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* All three authors: Department of Social and Decision Sciences, Carnegie Mellon University. We thank Joël van der Weele and three anonymous reviewers for comments. † Go to https://doi.org/10.1257/jel.20151245 to visit the article page and view author disclosure statement(s). one can, according to standard economic assumptions, ignore it at no cost. Consistent with standard theory, there are co...
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The systematic avoidance of indoor allergens by modification of houses, furnishings, or hygiene practices has long been advocated to reduce both the incidence of allergic diseases in at-risk infants and exacerbations or symptoms in those previously sensitized with such a disease. However, such advocacy is now under challenge, due to both a lack of evidence of clinical efficacy of avoidance meas...
متن کاملObstacle Avoidance
Given the a priori knowledge of the environment and the goal position, mobile robot navigation refers to the robot’s ability to safely move towards the goal using its knowledge and the sensorial information of the surrounding environment. Even though there are many different ways to approach navigation, most of them share a set of common components or blocks, among which path planning and obsta...
متن کاملApproaching Avoidance
Craving is only one component of the mental processes that influence drinking behavior. Alcohol-related cues (ARCs) can set in motion a dynamic competition between inclinations to approach drinking and inclinations to avoid drinking. Craving can thus be integrated into a comprehensive model of decisionmaking in which ambivalence or conflict is a key element. The relative strength of each compon...
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ژورنال
عنوان ژورنال: Studies in Second Language Acquisition
سال: 1989
ISSN: 0272-2631,1470-1545
DOI: 10.1017/s0272263100008123