Entity Linking with Custom Vocabulary

[Umutcan Şimşek <um...@mni.thm.de>]

Hi,

I'm trying to use EntityhubLinkingEngine with my custom vocabulary 
Entityhub site, I cannot get any enhancement from partial matches. For 
example my vocabulary has a person named Peter Smith. When I try to 
enhance a sentence like "Mr. Smith works in this department." I don't 
get any result from the entity linking engine. But dbpedia engines 
sometimes return results from this kind of partial occurrences.

Is there a way to configure entityhub linking engine for this purpose? 
One way to achieve my goal seems to be extracting given names and family 
names as rdfs:label. I wonder if there is some other way.

Another question is,  I'm using default solr index for my solryard. My 
custom vocabulary is subject to change rather frequently. I read about 
how to use genericrdf tool for this purpose but I think I need RDF dumps 
for that. How can I create indexes?

Thanks

Umutcan

Re: Entity Linking with Custom Vocabulary

[rh...@gmail.com]

Hi Umutcan, 







On lunes, jul 13, 2015 at 6:28 p. m., Umutcan Şimşek <um...@mni.thm.de>, wrote:
Hi,



I'm trying to use EntityhubLinkingEngine with my custom vocabulary 

Entityhub site, I cannot get any enhancement from partial matches. For 

example my vocabulary has a person named Peter Smith. When I try to 

enhance a sentence like "Mr. Smith works in this department." I don't 

get any result from the entity linking engine. But dbpedia engines 

sometimes return results from this kind of partial occurrences.



First, in that concrete sentence, you would to check if ’Smith’ has been recognized or not as a linkable token. You can try with other sentences to check if you get it linked. Anyway, probably you are going to need to trick the EntiyLinker configuration. Apart from the configuration that you can see in the OSGi console, there are several more parameters that you can adjust for your use case that are explained here: 



https://stanbol.apache.org/docs/trunk/components/enhancer/engines/entitylinking#entity-linker-configuration



You can change these parameters directly in the engine configuration file



Is there a way to configure entityhub linking engine for this purpose? 

One way to achieve my goal seems to be extracting given names and family 

names as rdfs:label. I wonder if there is some other way.



Another question is,  I'm using default solr index for my solryard. My 

custom vocabulary is subject to change rather frequently. I read about 

how to use genericrdf tool for this purpose but I think I need RDF dumps 

for that. How can I create indexes?

If your vocabulary is going to change quite frequently, probably your best option is to use a ManagedSite (https://stanbol.apache.org/docs/trunk/components/entityhub/managedsite.html) instead of a ReferencedSite though the generic indexer tool. In that way, you can push your entities using the EntityHub REST API




Hope that helps. Cheers,

Rafa





Thanks



Umutcan