With all data analysis, there is a danger that findings observed in a particular sample do not generalize to the underlying population from which the data were drawn. Adaptive analysis of a data set - where the analyst is informed by data exploration, as well as the results of previous analyses of the data set - can lead to an increased risk of spurious discoveries that are neither prevented nor detected by standard approaches.
In order to increase the reliability of data driven insights, researchers from Google, Microsoft, IBM, the University of Toronto, Samsung and the University of Pennsylvania have introduced the reusable holdout mechanism, a new methodology for navigating the challenges of adaptivity which allows the analyst to safely validate the results of many adaptively chosen analyses without the need to collect costly fresh data each time.
Learn more on the Google Research blog, linked below.
Australia's Defence Trade Controls Act was recently updated and now prohibits the "intangible supply" of encryption technologies, and hence subjects many ordinary teaching and research activities to unclear, potentially severe, export controls.
Playing Alvin & the Chipmunks to a captive audience has to be a violation of the Geneva Conventions.
I'll have to think about it more, but I think this relates to the difference between logical implication and probabilistic inference. "A => B, B, therefore A" is false. But if P(B | A) is high then learning B is true will generally increase your estimate that A is true.
- Software Engineer, 2013 - present
- University of New South WalesAdjunct Senior Lecturer, 2013 - present
- University of New South WalesConjoint Senior Lecturer, 2003 - 2012
- NICTASenior Researcher, 2003 - 2012
Google Australia Pty Ltd. Level 2, Fairfax Building, 1 Darling Island Road, Pyrmont, NSW 2009 Australia
- Carnegie Mellon UniversityPhD (Comp. Sci.), 1995 - 2002Artificial Intelligence / Machine Learning / Robotics
- University of New South WalesGraduate Diploma of Applied Intellectual Property, 2010 - 2013
- University of SydneyBSc. (Comp. Sci.), 1991 - 1994
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