COBE stands for Code of Business Ethics. Cobe is a conversation
simulator, originally a database backed port of MegaHAL but a bit
There are a few relevant posts here:
Cobe has been inspired by the success of Hailo:
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:
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
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