In this paper we will present a supervised
learning system which nds and classies named
entities in Japanese newspaper texts Recently
several systems have been proposed for this task
but many of them use handcoded
patterns Creating these patterns is laborious work and when
we adapt these systems toanew domain or a
new denition of named entities it is likely to
need a large amount of additional work On
the other hand in a supervised learning system
what is needed to adapt the system is to make
new training data While this is also not a very
easy task it would be easier than creating com
plicated rules For example based on our expe
rience
training articles can be created in a
day