\title{An implementation of the $d^2$ distance function for DNA
  sequences: The \emph{wcd} $d^2$ EST clustering algorithm}
\author{Scott Hazelhurst}
\date{September 2003}
\begin{document}
\maketitle

\begin{abstract}
This report gives a skeleton description of the d2 algorithm used for
the clustering of expressed sequence tags (ESTs) in the \emph{wcd}
program. It describes how the algorithm works and why some design
decisions were made. No experimental evidence is reported here. This
is subject of ongoing research.
\end{abstract}