Markov chain based text generator library and chatbot
COBE stands for Code of Business Ethics. Cobe is a conversation simulator, originally a database backed port of MegaHAL but a bit more now.
You can read its release history here: https://github.com/pteichman/cobe/wiki
Cobe has been inspired by the success of Hailo: http://blogs.perl.org/users/aevar_arnfjor_bjarmason/2010/01/hailo-a-perl-rewrite-of-megahal.html
Our goals are similar to Hailo: an on-disk data store for lower memory usage, better support for Unicode, and general stability.
You can read about the original MegaHAL here: http://megahal.alioth.debian.org/How.html
In short, it uses Markov modeling to generate text responses after learning from input text.
Cobe creates a directed graph of word n-grams (default n=3) from the text it learns. When generating a response, it performs random walks on this graph to create as many candidate replies as it can in half a second.
As the candidate responses are created, they’re run through a scoring algorithm that identifies which is the best of the group. After the half second is over, the best candidate is returned as the response.
Cobe installs a command line tool (called cobe) for interacting with a brain database, though it is also intended to be used as a Python api. See the documentation in the cobe.brain module for details.
To install from a tarball:
$ python setup.py install
Or from the Python Package Index:
$ easy_install pip # pip install cobe
$ cobe init $ cobe learn <text file> $ cobe console
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