[Ltg] LTG Seminar [Mark Dras, Sept. 20, E6A 357]

[Rolf Schwitter]

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LTG Seminar
 - see: http://www.clt.mq.edu.au/Events/Seminars.html

Monday, Sept 20, 2004 at 11am
Macquarie Uni, E6A 357
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Speaker: Mark Dras
Title: Non-Contiguous Tree Parsing

In transfer-based MT, it's necessary to carry out tree transformations via 
transfer rules.  In some cases, these transfer rules require the mapping of 
non-contiguous groupings of nodes over arbitrary distances in the tree. An 
obvious solution would require an unbounded memory and added complexity. 
I'll look at some cases, and then present an algorithm I came up with for 
doing this in an efficient way, based on a technique from compiler theory.

This will be a practice run for a talk at the conference Theoretical and 
Methodological Issues in MT.
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