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<title>The CHILLIN Inductive Logic Programming System </title>

<h1>CHILLIN</h1> <br> 


CHILLIN is an ILP system which integrates top-down search (a la FOIL), bottom-up
search (a la GOLEM) and predicate invention (a la CHAMP).  It has been used 
as the induction algorithm underlying the CHILL natural-language parser learning
system. <p>

The CHILLIN Prolog code is available via 
<!WA0><!WA0><a href="ftp://ftp.cs.utexas.edu/pub/mooney/chillin">anonymous ftp</a>.
See the INDEX file here for details.

Pointers to papers on CHILLIN and CHILL can be found on our <!WA1><!WA1><a
href="http://www.cs.utexas.edu/users/ml/ilp.html">ILP</a> research page. Below is the standard
reference (click on the open book image). <p>

<! ===========================================================================>

<a name="chill-ml-94.ps.Z" </a>

<li> <b> Combining Top-Down And Bottom-Up Techniques In Inductive Logic Programming
</b> <br>
John M. Zelle, Raymond J. Mooney and Joshua B. Konvisser <br>

<cite> Proceedings of the Eleventh International Workshop
on Machine Learning</cite>, pp. 343-351, Rutgers, NJ, July 1994. (ML-94) <p>

<blockquote>
This paper describes a new method for inducing logic programs from
examples which attempts to integrate the best aspects of existing ILP
methods into a single coherent framework.  In particular, it combines
a bottom-up method similar to GOLEM with a top-down method similar to
FOIL.  It also includes a method for predicate invention similar to
CHAMP and an elegant solution to the ``noisy oracle'' problem which
allows the system to learn recursive programs without requiring a
complete set of positive examples.  Systematic experimental
comparisons to both GOLEM and FOIL on a range of problems are used to
clearly demonstrate the advantages of the approach.
</blockquote>

<!WA2><!WA2><a href="file://ftp.cs.utexas.edu/pub/mooney/papers/chill-ml-94.ps.Z">
<!WA3><!WA3><img align=top src="http://www.cs.utexas.edu/users/ml/paper.xbm"></a><p>

<hr>
<address><!WA4><!WA4><a href="http://www.cs.utexas.edu/users/estlin/">[e-mail]</a></address>