Abstract
This paper describes the named Entity Recognition (NER) System for Hindi using CRF approach. In this paper, our experiments with various feature combinations for Hindi NER have been explained. The training set has been manually annotated with a Named Entity (NE) tagset of 12 tags. The performance of the system has shown improvements by using the part of speech (POS) information of the current and surrounding words, name list, location name list, organization list, person prefix gazetteers list etc. It has been observed that using prefix and suffix feature helped a lot in improving the results. We have achieved Precision, Recall and F-score of 72.78%, 65.82% and 70.45% respectively for the current NER Hindi system. We have used CRF++ toolkit for training and testing data.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Saha, S.K., Chatterji, S., Dandapat, S., Sarkar, S., Mitra, P.: A Hybrid Approach for Named Entity Recognition in Indian Languages. In: Proceedings of the IJCNLP 2008 Workshop on NER for South and South East Asian Languages, Hyderabad, India, pp. 17–24 (January 2008)
Praveen Kumar, P., Ravi Kiran, V.: A Hybrid Named Entity Recognition System for South Asian Languages. In: Proceedings of the IJCNLP 2008 Workshop on NER for South and South East Asian Languages, Hyderabad, India, pp. 83–88 (January 2008)
Shishtla, P.M., Pingali, P., Varma, V.: Character n-gram Based Approach for Improved Recall in Indian Language NER. In: Proceedings of the IJCNLP 2008 Workshop on NER for South and South East Asian Languages, Hyderabad, India, pp. 67–74 (2008)
Gupta, P.K., Arora, S.: An Approach for Named Entity Recognition System for Hindi: An Experimental Study. In: Proceedings of ASCNT 2009, CDAC, Noida, India, pp. 103–108 (2009)
Ekbal, A., Haque, R., Das, A., Poka, V., Bandyopadhyay, S.: Language Independent Named Entity Recognition in Indian Languages. In: Proceedings of the IJCNLP 2008 Workshop on NER for South and South East Asian Languages, Hyderabad, India, pp. 33–40 ( January 2008)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2011 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Sharma, R., Goyal, V. (2011). Name Entity Recognition Systems for Hindi Using CRF Approach. In: Singh, C., Singh Lehal, G., Sengupta, J., Sharma, D.V., Goyal, V. (eds) Information Systems for Indian Languages. ICISIL 2011. Communications in Computer and Information Science, vol 139. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-19403-0_5
Download citation
DOI: https://doi.org/10.1007/978-3-642-19403-0_5
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-19402-3
Online ISBN: 978-3-642-19403-0
eBook Packages: Computer ScienceComputer Science (R0)