My advice to you would be to first ensure that you have a neatly tweaked Nutch configuration which maintains a healthy representation of the web graph. Once this is is place, configuring Nutch-1.2 to use the ontology plug-in is not difficult. I would mention the following points thought.
> If you look at the Jena code within the ontology plug-in you will see that the parser is only called to retrieve classes and subclasses within your ontology (which needs to be in RDF/XML) e.g. say your user searched for 'money', the plug-in would display all your classes which match this term or are similar. If your user then clicked on 'money', the search JSP uses this as the next query, returns results and refines your users next query using subclasses of 'money' which may be 'dollar' 'yuan' 'euro' etc etc >As my first point highlights, I think the main thing to take into consideration here is the quality and usefulness of your ontology files... you will undoubtedly get help on consruction of these on jena-us...@incubator.apache.org<https://mail.gcal.ac.uk/owa/?ae=Item&t=IPM.Note&a=New&to=jena-users%40incubator.apache.org&nm=jena-users%40incubator.apache.org>or of course whatever of the Protege user lists you are working on >The underlying purpose of the ontology plug-in is to provide domain specific query refinement/expansion for search engine users. If you have a finely tweaked Nutch configuration crawling for pages, as well as a carefully considered and methodically constructed ontology(ies) then of course the blue print is reasonable. If you require general guidance please post on the Nutch user list, and I will try my best to provide a solution or at least help. Lewis lfs Wed, 01 Jun 2011 00:59:27 -0700 Thank you, Lewis! Your information is great to me. My idea is to use nutch to build a Chinese financial blog information search engine. My plan is that first use Protege to build a financial ontology and then do some localization upon Jena. And in this way at least a experimental Chinese financial blog information search engine can be built. Will you tell me if my plan can lead me to success? As I want to make sure the blueprint is reasonable before I get start. -- *Lewis*
