Support OpenCog
-
Recent Posts
Activity
-
RT @dhart: OpenCog Foundation accepted for Google Summer of Code 2012 https://t.co/x0dulUrD #GSOC #OpenCog— March 17th via Twitter
-
RT @ferrouswheel: On that note, the HK @opencog project is looking for developers: http://t.co/tAxsT5yD— October 22nd via Twitter
-
RT @ferrouswheel: Amused to find out people are making predictions about whether @opencog will reach v1.0 in Dec 2012.— October 22nd via Twitter
-
Videos of what we've been working on http://t.co/qATDqQR— August 4th via Twitter
-
— May 29th via Youtube
-
OpenCog Recap for May 2011: http://blog.opencog.org/2011/05/20/opencog-recap-may-2011/ #ai #machinelearning— May 20th via Twitter
-
OpenCog now has Python bindings thanks to @ferrouswheel http://wiki.opencog.org/w/Python— May 16th via Twitter
-
Recent Comments
- Stephen Paul King on Why Hypergraphs?
- Stephen Paul King on Why Hypergraphs?
- King Yin Yan on Why Hypergraphs?
- Stephen KIng on Why Hypergraphs?
- roschler on Why Hypergraphs?
Archives
- March 2013
- July 2012
- March 2012
- February 2012
- August 2011
- May 2011
- February 2011
- December 2010
- September 2010
- August 2010
- February 2010
- November 2009
- October 2009
- September 2009
- July 2009
- June 2009
- April 2009
- March 2009
- February 2009
- January 2009
- October 2008
- September 2008
- August 2008
- July 2008
- June 2008
- May 2008
Categories
Meta
Author Archives: Linas Vepstas
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. … Continue reading
Posted in Design, Introduction, Theory
Tagged dependency grammar, HyperGraphDB, Learning, linguistics, link-grammar, MachineLearning, Natural Language Processing, OpenCog, PLN, RelEx
6 Comments
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
1 Comment
The MOSES Metapopulation
Or, how to select a promising species for mutation. Continue reading
Posted in Design, Documentation, Theory
Tagged evolution, genetic programming, Learning, MOSES
6 Comments
Tuning Metalearning in MOSES
I’ve been studying MOSES recently, with an eye towards performance tuning it. Turns out optimization algorithms don’t always behave the way you think they do, and certainly not the way you want them to.
Given a table of values, MOSES …
Posted in Design, Development, Documentation, Theory
Tagged Learning, MachineLearning, MOSES
2 Comments
Meaning-Text Theory
During some recent reading, it struck me that a useful framework for thinking about and talking about sentence generation is the MTT or “meaning-text theory” of Igor Mel’cuk, et al Here is one readable reference:
Igor A. Mel’čuk and …
Posted in Theory
Tagged linguistics, Mel'cuk, MTT, Natural Language Generation, Natural Language Processing, NLP, RelEx, semantics, Syntax
Leave a comment
Semantic dependency relations
I spent the weekend comparing the Stanford parser to RelEx, and learned a lot. RelEx really does deserve to be called a “semantic relation extractor”, and not just a “dependency relation extractor”. It provides a more abstract, …
Posted in Design, Development, Documentation, Theory
Tagged dependency grammar, grammar, linguistics, Natural Language Processing, NLP, Rel, Semantic relations, Syntax
Leave a comment
Sentence Patterns
I’ve recently resumed work on the question-answering chatbot, and am trying to get it to comprehend a broader range of questions and statements. The “big idea” is to create a number of “sentence patterns” that the pattern matcher can …
Posted in Design, Introduction, Theory
Tagged chatbot, IRC, NLP, parser, question answering, RelEx
2 Comments
Frequency of grammatical disjuncts
The link-grammar parser uses labeled links to connect together pairs of words. In order to capture the idea of proper grammatical construction, any given word is only allowed to have very specific links to its right or left: for …
Posted in Development, Theory
Tagged frequency, grammar, GSoC, linguistics, link-grammar, NLP
4 Comments