Marcia - 4:36 am on Feb 13, 2007 (gmt 0)

The "Detecting spam documents in a phrase based information retrieval system" patent application talks about "comparing the actual number of related phrases in a document with the expected number of related phrases"

The indexing and comparing of phrases, or "phrase based indexing" is an implementation, with the particular applications and methodologies being described in the patents.

But phrase-based indexing is just that - an implementation, and is nothing more than an implementation that's a part of broader technologies.

IOW, "phrase based indexing" as such isn't a technology in itself, it's just the way the technologies are being implemented in these inventions.

[edited by: Marcia at 4:40 am (utc) on Feb. 13, 2007]