semantic search in alfresco

[jmarti]

Hi,

I'm wondering about the possibility of implementing "semantic search" in Alfresco? Not sure if "semantic" is the right word…

What I would like to get is:
         - Search for a word.
         - You get docs containg and/or related to that doc.
         - You also get relations between those docs. Graphical display. Customer says wow, I want this. ;-))
                     -  Relations are based on common words containing those docs.
                     -  Those common words should also be similar to the word I started the search with.

Could anyone tell me how o where I could start digging?
Is there any module or plugin already working on this?

Alfresco is based on lucene indexes, so I tried looking for a lucene module for it. No luck.

Any idea?

Should I start this from scratch?

[stevereiner]

Note: Calais / OpenCalais is not open src, its an"open api" web service that is free for low volumes. IKS / Apache Stanbol is a completely open src / free stack (when it uses OpenNLP instead of the optional use of OpenCalais).

Zaizi is working on an Alfresco integration to IKS / Apache Stanbol.  Integrated Semantics will be doing additional UI for Apache Stanbol + Alfresco http://code.google.com/p/semantics4alfresco/ (has links to IKS, Apache Stanbol, Zaizi projects too)

I think IKS and Apache Stanbol are exploring support for semantic search (maybe tied in with Solr faceted search, since they are using Solr)