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  1. Eigenprism : inference for high-dimensional signal-to-noise ratios

    Janson, Lucas
    Stanford, Calif. : Department of Statistics, Stanford University, May 2015.

    Online statistics.stanford.edu

  2. A model-free approach to high-dimensional inference [electronic resource]

    Janson, Lucas Beck
    2017.

    Consider trying to understand the genetic basis of a disease. A natural first step would be to sequence the genomes of a large group of people and note whether each person has the disease or not. With such a data set one might hope to answer questions such as which mutations make the disease more likely, or how much all the mutations together explain disease contraction as opposed to environmental factors. Unfortunately, due to the large number (hundreds of thousands or more) of locations on the genome with potential mutations, classical statistical techniques cannot be used to answer such questions. Similar problems with a response variable of interest and many potential explanatory variables (known as 'high-dimensional' problems) abound in modern statistical applications, including in medicine, political science, advertising, and many more. The driving force behind the recent surge in such high-dimensional problems is that it has become easier and less expensive to collect, store, and process increasing amounts of information about individuals such as entire genomes, medical records, or online behavior. The limitations of classical methods in high-dimensional settings demand innovation in the statistical field of high-dimensional inference. In addition to requiring creative mathematical insight, most high-dimensional inference problems are non-starters without some further assumptions about the underlying process generating the data. As such, a constant challenge and source of debate regards the best way to make assumptions that are realistic, verifiable, and allow for fast and powerful methods. This thesis contributes to the discussion by surveying existing methods along with their assumptions, proposing a different perspective on how assumptions are made, and highlighting the benefits of that perspective by detailing two novel methods (developed jointly by the author and his collaborators) for high-dimensional inference that embody it.

  3. Panning for gold : model-free knockoffs for high-dimensional controlled variable selection

    Candès, Emmanuel J. (Emmanuel Jean)
    Stanford, Calif. : Department of Statistics, Stanford University, October 2016.

    Online statistics.stanford.edu

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