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Difference between cognitive map, semantic network and ontology

Cognitive maps represent mental models which have connections between concepts that represent entities, goals. Ontologies represent vocabularies for knowledge representation. It explains the semantics ...
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38 views

What is the common solution for a computer scientist to do data visualization related work?

For example, I do data mining work towards a large amount of log informations of a web server, and get some results. I would like to make some slides to quickly show the results to my advisor, then ...
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157 views

Differences between basic, complex and terminological facts in a Knowledge Base using First-Order Logic

I've been reading the excellent book Knowledge Representation and Reasoning by Ronald Brachman and Hector Levesque. In the beginning of Section 3.2 "Vocabulary" of Chapter 3 "Expressing Knowledge" ...
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40 views

Search space complexity of directional semantic network

How can I compute the search space complexity of a directional semantic network (i.e. a network where each semantics consist of two nodes and a directional link stands for their semantic relation)? ...
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1answer
208 views

first order logic resolution unification

Assuming I have shown part of the knowledge base in the clausal format: [1] p1(banana). [2] not p1(X) or p2(Y). [3] p1(X) or not p3(F). ... and more rules. ...
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553 views

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 ...
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1answer
119 views

MGU and Variable Standardization - CNF

I have been reading on converting first order logic sentences to conjunctive normal form, and then performing resolution. One of the steps of converting to CNF, is to Standardize variables: rename ...
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1answer
101 views

Resolution and incomplete Knowledge Base

Assume I have an incomplete knowledge base, for example: ...
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1answer
104 views

How to represent the interests of a Facebook user

I'm trying to figure out a way I could represent a Facebook user as a vector. I decided to go with stacking the different attributes/parameters of the user into one big vector (i.e. age is a vector of ...
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149 views

What Is The Complexity of Implementing a Particle Filter?

In a video discussing the merits of particle filters for localization, it was implied that there is some ambiguity about the complexity cost of particle filter implementations. Is this correct? ...