The first is the one used in the chunking competition in CoNLL-2000 ( Tjong Kim Sang and Buchholz , 2000 ) .
introduction to the conll2000 shared task chunking
E F Tjong Kim Sang S Buchholz
Both can be formally defined and they reflect different levels of shallow parsing patterns . The first is the one used in the chunking competition in CoNLL-2000 ( Tjong Kim Sang and Buchholz , 2000 ) . In this case , a full parse tree is represented in a flat form , producing a representation as in the example above .
The first is the one used in the chunking competition in CoNLL-2000 ( Tjong Kim @@CITATION ) .