Postscript to Richard Jeffrey’s “Conditioning, Kinematics, and Exchangeability”

Exchangeability Characterizes Optimality of Sequential Normalized Maximum Likelihood and Bayesian Prediction with Jeffreys Prior

We study online prediction of individual sequences under logarithmic loss with parametric constant experts. The optimal strategy, normalized maximum likelihood (NML), is computationally demanding and requires the length of the game to be known. We consider two simpler strategies: sequential normalized maximum likelihood (SNML), which computes the NML forecasts at each round as if it were the la...

Postscript

Postscript : Rejoinder to Johnson et al . (

In their postscript, Johnson et al. (2008) emphasized that models of heuristics and their adaptive use will advance research on risky choice. We agree wholeheartedly. Yet they had two empirical concerns. First, they argued that although only 3 of 28 tests were significant in the opposite direction of what the priority heuristic predicts, one of them, the test for outcome-probability (probabilit...

Better PostScript than PostScript: portable self-extracting PostScript representation of scanned document images

We present a Pattern Matching Based Compression (PMBC) system which compresses scanned documents into PostScript format. The output of a PMBC system is a pattern library, or font, and a series of pattern indices and positions. PMBC represents scanned documents in the same way that word processing programs represent their output pages. We explore various PostScript representations of this output...

A postscript

numerous contributions to the discussion of general questions in evolutionary biology, and for providing an evolutionary perspective on other areas of biology, such as ecology and development. He was a persistent critic of group-selectionist thinking and of the theory of punctuated equilibrium. He published fourteen books and collections of papers on an astonishing diversity of subjects, as wel...