The types of dependencies described above are used to perform the syntactic analysis of text. However, DepPattern also permits to make morpho-syntactic corrections on the PoS tagged text taken as input. For this purpose, we defined a unary relation type: 'Head'. In Chapter 2.2 of this tutorial, we show an example of how this type of relation is used to solve systematic PoS tagging errors.
Pablo Gamallo
2009-01-19