Here is a preview of IRW-2008-1.

In this issue of the IRW newsletter we discuss association clusters in the context of keyword discovery.

Introduction
What are Clusters?
A “Reaction” Equation Approach
The Term-Document Matrix
The Document-Term Matrix
The Term-Term Co-Weight Matrix
What is a Similarity Matrix?
A Nomenclature Convention
Computing the Similarity Matrix
Identifying Association Clusters
Association Clusters: Some Applications
News, Research, and Events
Terms of Use and Copyright

The material covered is an adaptation of one of my Web Mining Course lectures.