OpenCog Framework

Here is an update on some recent OpenCog work that may be relevant to some of you… (Email [email protected] if you have detailed questions) The main update is that the “virtual pet QA system” now answers questions regarding many more spatial ... [More] relationships; for the full list see http://www.opencog.org/wiki/EmbodimentLanguageComprehension_Questions (The work here was in creating rules to identify when [...] [Less]

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 Alain Polguère ... [More] , (1987) “A Formal Lexicon in Meaning-Text Theory”, Computational Linguistics, vol. 13, pp. 261-275. portal.acm.org/citation.cfm?id=48160.48166 www.aclweb.org/anthology/J/J87/J87-3006.pdf Within the [...] [Less]

Time that we post a status update! OpenCog has been a little more quiet than usual over the last couple of months. The developers list is still sporadically active, but some of the main developers are having to spend time on other work related projects meaning less AGI-driven focus (want to change that? donate here). We’re [...]

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, more semantic output than the Stanford parser, which sticks very narrowly to the syntactic structure of [...]

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 recognize and respond to. The reason this is a “big” idea is because I am trying [...]

A friend of mine, JMM knew that I’ve been funded in the past by SIAI to work on OpenCog, so he asked the following question: “The Singularity Institutes “main purpose” is meant to be to investigate whether a recursively improving intelligence can ... [More] maintain “friendliness” towards human kind. “ Okay, but my standpoint is: Why does the recursively [...] [Less]

The link-grammar parser uses labelled 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 example, verbs have thier subject on the left, and an object on the right. Link-grammar defines [...]

Recently Jared Wigmore, a student of Waikato University, New Zealand, created a tool for visualizing PLN as part of a visualisation project. In my opinion, the BIT visualiser shows great promise as a tool for understanding the complexities of BIT ... [More] expansion. In particular, the cross joins between sub-trees make it much clearer how sharing of sub-trees is occurring. [...] [Less]

Kaj Sotala has been making his notes on PLN available on LJ as he reads through the Probabilistic Logic Networks book.

A prototype chatbot demonstrates the OpenCog NLP pipeline by parsing simple statements and answering simple questions.