منابع مشابه
Free Lunch
In the world of digital imaging and digitisation the current ubiquity of large proprietary brands can sometimes be seen as a hindrance when considering embarking on a digitisation project. Within digitisation, the issue of digital preservation is a constant reminder of the vulnerability of our digital assets and it is possibly this ubiquity of proprietary software and formats that is seen as be...
متن کاملReinterpreting No Free Lunch
Abstract Since its inception, the "No Free Lunch" theorem (NFL) has concerned the application of symmetry results rather than the symmetries themselves. In our view, the conflation of result and application obscures the simplicity, generality, and power of the symmetries involved. This paper separates result from application, focusing on and clarifying the nature of underlying symmetries. The r...
متن کاملa Free Lunch ?
526 NOTICES OF THE AMS VOLUME 51, NUMBER 5 The notion of arbitrage is crucial in the modern theory of finance. It is the cornerstone of the option pricing theory due to F. Black and M. Scholes (published in 1973, Nobel Prize in Economics 1997). The underlying idea is best explained by telling a little joke. A finance professor and a normal person go on a walk, and the normal person sees a €100 ...
متن کاملNo Free Lunch
Some philosophers (see (Armstrong, 1997), (Cameron, 2008), (Melia, 2005), and (Schaffer, 2007, 2009, 2010a)) have recently suggested that explanations of a certain sort can mitigate our ontological commitments. The explanations in question, grounding explanations, are those that tell us what it is in virtue of which an entity exists and has the features it does. These philosophers claim that th...
متن کاملNo Free Lunch with the Sandwich
In nonlinear regression theory, the sandwich estimator of the covariance matrix of the model parameters is known as a consistent estimator, even when the parameterized model does not contain the regression. However, in the latter case, we emphasize the fact that the consistency of the sandwich holds only if the inputs of the training set are the values of independent identically distributed ran...
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ژورنال
عنوان ژورنال: BMJ
سال: 1979
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.1.6176.1490-e