Named entities as new features for Czech document classification
15th International Conference on Intelligent Text Processing and Computational Linguistics (CICLing 2014) (2014)
Named entitity recognition
This paper is focused on automatic document classification.
The results will be used to develop a real application for the Czech News Agency.
The main goal of this work is to propose new features based on the Named Entities (NEs) for this task.
Five different approaches to employ NEs are suggested and evaluated on a Czech newspaper corpus.
We show that these features do not improve significantly the score over the baseline word-based features.
The classification error rate improvement is only about 0.42% when the best approach is used.