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Questions tagged [ontologies]

17 questions
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Are semantic networks ontologies?

I struggle with few definitions in knowledge representation and seek credible help to distinguish between them. I have been searching on wikipedia and many websites for the difference between ontologies and semantic networks (not to be confused with…
Zonata
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What are the practical uses of ontologies?

I have read many papers and books about ontologies and I am trying to figure out that how they are used in a real project? For example how the ontology for a soccer player robot can be defined and used with a cognitive architecture in order to make…
Freelancer
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In ontology development, where do axioms come from?

I am developing an ontology. I've got the classes, relationships and I guess I could come up with instances at this point too. But what I'm really focused on is the axioms. I've learnt that the axioms restrict the knowledge so that reasoning can be…
Dee
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What is the formal name for an "entry" in an ontology?

I am trying to wrap my head around ontologies and their related counterparts (RDF, OWL, etc.). My understanding is that an ontology, at the end of the day, really boils down to some database storing objects/entries, where each entry has a set of…
smeeb
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Semantic similarity in text

Is there a relatively simple way of telling if two pieces of text are semantically similar? Some assumptions that are valid: It is all english I have a list of all the important nouns Are there any strategies that I should pursue? Looking for…
soandos
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Semantic clustering

I have a very specific question about semantic clustering. I have a list of words/phrases. I want to run an intelligent semantic clustering algorithm on this list. Please let me know what the available options are. Definitely I am looking for NLP…
Dibyendu
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How to model references in an ontology

I am interested in creating an ontology which will model arguments (among other things). For example, a triple in the ontology might be Vaccination -> can lead to -> Autism (not that I necessarily believe this, just a good example of an argument). I…
Noah Santacruz
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Semantic information collections on the web. (Semantic Wikipedia)

There are lots of technologies supporting semantic information markup even as wiki software. I am wondering if there is any kind of broad information collection project like Wikipedia which features semantic markup of those information. Google…
Chris
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How “logic-based symbolic reasoning” and “ontology” are related?

I have a basic understanding of knowledge representation systems, semantic networks and ontologies. But I can not relate my understanding to the reasoning. How the reasoning is applied on ontologies and semantic networks?
Adel
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Ontology Editor or Something Else (in my case)?

Does there exist a system, e.g., software, an environment, a programming language, or the like, to represent knowledge and to reason with it, to query with, where the (descriptive) language used is at least predicate logic with modal operators,…
user101144
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Pool of photos for term extraction

I need a pool of photos (if possible with description) for my project. I mainly have to perform term extraction for semantic searching. Is there something available out there that is made available for such kinds of thing? I'm going to mine the…
Noor
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What is the difference between cyber security ontologies and scenario ontologies in this system?

I have been reading the paper Towards a Cognitive System for Decision Support in Cyber Operations. And I have been trying to understand the role of two ontologies proposed here, cyber security ontologies and scenario ontologies. I have asked a…
Freelancer
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In first order logic, how do we normally represent a statement?

I wanted for an example such as: Everyone has a mother. I've seen that it is represented in FOL as: $\forall x \exists y:$ Mother(x, y) I'm seeing that as:For every x, there exists a y, such that y is a mother of x. I want to know why isn't the…
rert588
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What are Key benefits of Ontologies in Systematic Literature Review?

I am working on a Systematic Literature Review (SLR) and about to done with data synthesis. After SLR, I want to create an Ontology and include different details of the SLR in Ontology. I have almost completed the practical steps, but unable to…
Khan
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Combining Ontology and Relational Databases in Question Answering system

I'm introducing to the Natural Language Processing field and it's application. I'm planning to build a question answering system for a project, but some approaches are making me a bit confuse about the use of ontologies and it's application on the…
Jesus Herrera
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