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Monthly Archives: March 2013
Why Hypergraphs?
I’ve recently been hacking on creating a new parser for the Link Grammar theory of natural language parsing. I want to couple parsing to machine learning (ML), to that I can use ML to learn natural languages. To do that, I need to place everything in a certain abstract data representation framework that allows graph rewrite rules, logical reasoning, and Bayesian probabilistic reasoning to be combined. This framework exists in OpenCog, but few people know or understand this. That this framework also has a firm foundation in model theory, category theory (even n-categories!) and type theory is even less well known. To explain all this, I just wrote a simple, easy introduction to all of these ideas, and how they come together. Follow the link for more. Continue reading
Posted in Design, Introduction, Theory
Tagged dependency grammar, HyperGraphDB, Learning, linguistics, link-grammar, MachineLearning, Natural Language Processing, OpenCog, PLN, RelEx
40 Comments
Catalog of Current OpenCog Atom Types
Alex van der Peet (of the OpenCog Hong Kong team) has been working on cataloguing all Atom types currently in use in the OpenCog code on the wiki site. This page lists them all, with a page for each one: … Continue reading
Posted in Uncategorized
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The Viterbi Parser
The new Viterbi decoder for Link Grammar should offer better integration with higher level semantic algorithms! Continue reading
Posted in Design, Development, Theory
Tagged Code, dependency grammar, linguistics, link-grammar, Natural Language Processing, NLP, RelEx
3 Comments