Hi Tarandeep,
Have you tried using the whole URI of the property
(http://dbpedia.org/ontology/capital)??
Anyway, maybe it is a better idea to change your workflow, because I
suppose that your example about "India" entity is something that could
happen to you with more entities because the default DBpedia site in
Stanbol doesn't contain information about dbp-ont properties. I would
suggest to use EntityHub cache to locally store entities with all the
information you need directly from DBpedia. So, maybe you can try to
directly retrieve the entities from any DBpedia endpoint, store them in
the EntityHub cache to ensure that you can use it later as your
convenience. Maybe the workflow could be the following:
1. Enhance a document using Stanbol DBpedia site for linking.
2. For each extracted entity:
2.1. If the entity is already store in the EntityHub, get it
using LDPath for dereferencing.
2.2. If not, retrieve the entity from DBpedia endpoint as RDF
data and store it in the EntityHub. Then retrieve it
I would day that this is currently possible in Stanbol, but maybe
someone else in the list can give you more light with the issue.
Regards
El 18/07/13 09:48, Sawhney, Tarandeep Singh escribió:
Hi All,
In the stanbol local cache we have limited triples in dbpedia reference
site.
We have a need to get more triples for entities which are present in dbpedia
reference site. For example entity "India" has limited triples, so when we
enhance text which has india, it gets us only information which is there in
dbpedia reference site.
We have followed below mentioned steps to add more RDF data for entity
"India" by creating our own reference site.
1 - Downloaded rdf-data for 'India' from [1].
2 - Generated indexes for this rdf-data as suggested in article [2] with *Demo
*as a reference site name.
3- Initialized indexes within stanbol instance as per [2].
4- Configured new EntityLinking engine, '*demoLinkingEngine*' with *Demo *as
referenced site as per [3].
I have added *dbp-ont:capital *in *'"Fields used for derefrencing*
"option.
5- Configured new weighted chain (*demoChain*).
6 - Now i am trying to enhance *"India is a country."* I am getting India
as de-reference entity but unable to get any new information related
to *dbp-ont:capital
*which exists in my new reference site *Demo, *which in this case should
give us URI value of "New Delhi"
[1] http://dbpedia.org/page/India
[2] http://stanbol.apache.org/docs/trunk/customvocabulary.html
[3]
http://stanbol.apache.org/docs/trunk/components/enhancer/engines/entityhublinking
Can you please let me know if i am doing something wrong here or missing
some configurations.
Please let me know in case you need some more information on how we are
trying to do it
best regards
tarandeep
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