Neural Networks Wikibooks

Environment and Goals Jointly Direct Category Acquisition / Wikibook - Semantic Networks
the Cell - Wikibooks Love Article

  • Why and how do people categorize?
    • why- to develop a schema that corresponds well to their real life. We need that so we aren't routinely mislead.
    • how- from either exemplars or prototypes (maybe both? we're unsure)
  • What issue is important but ignored by prototype and exemplar?
    • The author argues that its not so clear, but we have to take into account flexibility of structures as well as people's goals. Instead we should use clusters.
  • clusters: bundles of experiences that group together - a more flexible way of representing info.
    • Encompass both prototypes and exemplars in that a category represented by one cluster is a prototype and one category with many clusters is an exemplar.
    • exemplar prototype continuum (a spectrum)
      • Knowledge gets more complex the more we learn, and this model follows that.
    • The author says the world comes in natural chunks, so it makes sense that we would make clusters out of those things that naturally go together
      • from this perspective, clustering is driven by the environment, but it may also be influenced by goals. -ex. you may look at a cow differently if you are a vet or a butcher.

      Wikibook - Semantic Networks

    Source: Cognitive Psychology

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2002-02-09 14:24:25 by on-trial

The amount of poor and self-interested advice that is being issued by brokerages and their analysts. To this day, the majority of stockbrokers are compensated on the number of trades their customers make, not on the returns they generate for them or on the quality of the advice they provide. We believe that the price targets and analyst ratings are made with several masters in mind, none of whom are the individual investor. In a similar fashion, sell-side stock analysts are generally compensated based upon the overall profitability of their firms, not the quality or accuracy of their analysis. In the end, analysts have minimal structural incentive to be accurate in their predictions; rather their built-in incentive is to be as favorable to their corporate clients as possible. It is a...

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For the genetics of neural circuits and behavior, and synaptic guidepost molecules. ... Sergey's research interests include search engines, information extraction from unstructured sources, and data mining of large text collections and scientific data ...

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