Prepositional Phrase Attachment
- Kailash also did a proper PP attachment system.
- He did his undergrad thesis on PP attachment using
lattices derived from WordNet, and got the best results
we could find on PP attachment resolution.
- We did a test on the Penn Tree Bank
- We took the 4-tuples from the ambiguous PP sentences, and
grabbed the hierarchy from WordNet.

- We encoded the words hierarchically with each of the
hierarchy members active in the appropriate subnet.
- We trained by presenting a novel set of neurons to the VAttach
or NAttachNet.
- Testing presented just the words and decided based on the most
active attach net.
- What's happened is that the system has learned a lot of
overlapping CAs.
- It gets about 90%, better than our original lattice mechanism.