The Plustek 8100 is a popular entry-level 35mm film scanner. It produces significantly higher resolution scans than any accessibly priced flatbed scanner I know of (thinking specifically of the Epson …

## Articles by Christian Chapman

## A Class of Multivariate Functions that Behave Like Single-Letter Random Variables

Vector-encoders of a certain pretty restricted class happen to carry the same information content as univariate encoders. This turns out to be relevant to an aspect of time-expanded information bottlenecks …

## Extracting Relevant Information over Many Trials

The information bottleneck scenario goes like this:

We are interested in a quantity Y but only observe X which we must process down to a rate R \in …

## Hypersphere Cap Volumes in Matlab

The volume of a height-h cap of a ball of radius r in dimension n can be derived:

\begin{equation} \operatorname{vol}(\operatorname{cap}) = \frac{1 …## On Suboptimality of the Berger-Tung Bounds

The Berger-Tung inner and outer bounds give a approximation to the rate-distortion region in lossy distributed source coding. The regions are not tight in general. Their tightness is discussed throughout …

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