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Spaced repetition and memory
An article in Wired from a while back on Piotr Wozniak (no relation to Steve), a researcher of optimal memory and learning strategies, got me thinking about learning theory and memorization in the...
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Hacking on Link-Grammar
I hack, heads-down, on link-grammar every now and then. Yesterday, I fixed another round of broken parse rules: making sure that sentences like “John is altogether amazingly quick.” “That one is...
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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...
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Genetic Crossover in MOSES
MOSES is a system for learning programs from input data. Given a table of input values, and a column of outputs, MOSES tries to learn a program, the simplest program that can reproduce the output...
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The MOSES Metapopulation
Kaj Sotala recently asked for an update on how MOSES selects a “species” to be “mutated”, when it is searching for the fittest program tree. I have some on-going, unfinished research in this area,...
View ArticleWhy Hypergraphs?
OpenCog uses hypergraphs to represent knowledge. Why? I don’t think this is clearly, succinctly explained anywhere, so I will try to do so here. This is a very important point: I can’t begin to tell...
View ArticleThe AtomSpace: a Typed Graphical Distributed in-RAM Knowledgebase
The OpenCog AtomSpace is a typed graphical distributed in-RAM knowledgebase. The meaning of all those buzzwords is that it is trying to fix many different, related problems that computers (and people)...
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