I’ve been keeping track of these threads and this is my summary with regards to SEO:
- C-Index should be used as a guideline to calculating semantic connectivity – Not a perfect measure.
- EF-Ratios is a good indicator of keyword competiveness but proper analysis requires a review of competing websites.
- Fractal Summarization – I’ve found that the methods in these papers extend to copy writing.
The search engine technology forums on SEW and SEOchat are a must read. If you are optimizing without understanding the theory behind search engine technology and how search engines retrieve/rank information, then eventually you’ll find yourself trying to catch up.
Here’s some good reading:
Measuring the Connections between Words – Semantic Analysis & Clustering
Local Popularity vs. Global Popularity
Advanced On/Off-Page Optimization for Engines using Semantic Analysis