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Institute for Natural Language Processing |
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PAC |
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PAC is a predicate-argument clustering software which is trained on
tuples such as
| 2 | abandon | SUBJ:NP | company | project |
| 1 | abstain | SUBJ | legislator |
| 1 | accede | SUBJ:P:NP | government | to | pact |
and induces a statistical soft clustering of these (and other) tuples.
The statistical PAC model is described in the following paper:
Sabine Schulte im Walde, Christian
Hying, Christian Scheible, and Helmut Schmid:
Combining EM Training
and the MDL Principle for an Automatic Verb Classification
Incorporating Selectional Preferences,
ACL-HLT 2008, Columbus, Ohio. (pdf)
The source code of PAC can be downloaded
here as a gzip-compressed tar file. It is freely available for
education, research and other non-commercial purposes.
Please send comments, suggestions and bug reports to me (Helmut
Schmid) at the address FirstName.LastName@ims.uni-stuttgart.de.
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