Phil 12.6.17

7:00 – 6:00 ASRC MKT

  • Best Free Alternative PDF Viewer to Adobe Reader
  • Downloaded Modeling Political Information Transmission as a Game of Telephone and gave it a skim. It  looks very much like this is an example of dimension reduction. To refine the idea, there need to be several conditions that lead to a stampeed
    • Dimension reduction and alignment need to occur across a population. It’s no good to have dimension reduction if everyone is pointing in a different direction.
    • The belief has to be ‘containing’ in some way. Either by social interaction (trust), or a lack of awareness of other ideas, it needs to be difficult to break out of.
      • This can be manipulated by external actors posing as trusted members of the group. Direction and level of uniformity can be influenced.
    • It has to be dynamic. A static belief provides the implicit ability to move away from it in any direction. A belief that is evolving fast enough maintains alignment by focusing the need for novelty (exploration?) in one direction.
  • Starting Schooling as a strategy for taxis in a noisy environment here
  • Demo
  • Chaining of matrices should be possible. Imaging an author/term matrix and a document/term matrix. Raising the weight of the author raises the weights on the associated terms. Those terms can be multiplied by the weights in the document term matrix which should result in a correct(?) re-weighting.
  • Chat with Shimei after picking up my gps
    • The Rat Park Experiment
    • Smoking and the bandit: A preliminary study of smoker and non-smoker differences in exploratory behavior measured with a multi-armed bandit task
      • Advantageous decision-making is an adaptive trade-off between exploring alternatives and exploiting the most rewarding option. This trade-off may be related to maladaptive decision-making associated with nicotine dependence; however, explore/exploit behavior has not been previously investigated in the context of addiction. The explore/exploit trade-off is captured by the multi-armed bandit task, in which different arms of a slot machine are chosen to discover the relative payoffs. The goal of this study was to preliminarily investigate whether smokers differ from non-smokers in their degree of exploratory behavior. Smokers (n = 18) and non-smokers (n = 17) completed a six-armed bandit task as well as self-report measures of behavior and personality traits. Smokers were found to exhibit less exploratory behavior (i.e. made fewer switches between slot machine arms) than non-smokers within the first 300 trials of the bandit task. The overall proportion of exploratory choices negatively correlated with self-reported measures of delay aversion and nonplanning impulsivity. These preliminary results suggest that smokers make fewer initial exploratory choices on the bandit task. The bandit task is a promising measure that could provide valuable insights into how nicotine use and dependence is associated with explore/exploit decision-making.

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