Open-Source Tools for Mapping Text to Ontology

Hi for mapping raw text to an ontology, do you mean the entities from text, to concepts and classes defined into the ontology? If so, there are different tools for NER: there was stanbol (if I'm not wrong is not active anymore, but it supported RDF as well), there is spotlight, and for example CoreNLP... If you mean something different, for example including the "meaning" of the phrase in text, I think the problem not only involves much more NLP, but also the need to understand what knowledge are you trying to capture, specifically: there could be different levels of abstraction for different ontologies, using both lexical or entity-based representation... what do you need this for?

Hi Alfredo S., Thanks for your answer. I am trying to do the latter. I’m working on developing an ontology for “propaganda” (rhetorical devices, logical fallacies, etc..). I would then like to create a knowledge graph from news articles which I can use for propaganda detection and analysis. The analysis part is what’s interesting, and at the moment I’m thinking about using Walton’s argument scheme diagrams for this.

This is obviously a gross oversimplification, but that’s the gist 😉

this looks an interesting application? I wonder if the model could also be connected to the representation ofbsperches in the populus project. Anyway: I don't know the walton project, but if you plan to represent with an ontology, there is still more non trivial work to do, not only for the modeling part, but especially for extracting the various parts with NLP. Do you alteady have some module, or are you in a starting phase?

thanks for the Walton reference: I'll try to read some more on this topic, it seems to be very interesting!

I’ve spent about a year thinking things through and reading. So I have a lot of ideas from a theoretical perspective. But I am only in the very beginning stages of implementation. I am not new to NLP so while this is definitely a challenge (huge understatement here), I think I am technically equipped to take it on.

Here is a link to my proposal - again, this is early stages: https://www.springerprofessional.de/en/towards-an-ontology-for-propaganda-detection-in-news-articles/19376886

Let me know if you can’t access it