perlbrew is a program to automate the building and installation of perl in the users HOME. At the moment, it installs everything to ~/perl5/perlbrew, and requires you to tweak your PATH by including a bashrc/cshrc file it provides, in your shell configuration file. You then can benefit from not having to run 'sudo' commands to install cpan modules because those are installed inside your HOME too. It's a completely separate perl environment.

Bayesian inference of phylogeny is based upon a quantity called the posterior probability distribution of trees, which is the probability of a tree conditioned on the observations. The conditioning is accomplished using Bayes's theorem. The posterior probability distribution of trees is impossible to calculate analytically; instead, MrBayes uses a simulation technique called Markov chain Monte Carlo (or MCMC) to approximate the posterior probabilities of trees.

Vamps reduces the size of DVD compliant MPEG2 program streams by selectively copying audio and subpicture tracks and by resizing the embedded elementary video stream. The shrink factor may be either specified for the video elementary stream only or for the video ES only or for the full PS.

latexml is a program, written in Perl, that attempts to faithfully mimic TeX's behaviour, but produces XML instead of dvi. The document model of the target XML makes explicit the model implied by LaTeX.

qingy (Qingy Is Not GettY) is a replacement for getty that uses DirectFB to provide a fast, nice GUI without the overhead of the X Window System. It allows the user to log in and start the session of his choice (text console, GNOME, KDE, WMaker, ...).