Improving Document Ranking using Query Expansion and Classification Techniques for Mixed Script Information Retrieval Subham Kumar author Anwesh Sinha Ray author Sabyasachi Kamila author Asif Ekbal author Sriparna Saha author Pushpak Bhattacharyya author 2016-12 text Proceedings of the 13th International Conference on Natural Language Processing Dipti Misra Sharma editor Rajeev Sangal editor Anil Kumar Singh editor NLP Association of India Varanasi, India conference publication kumar-etal-2016-improving https://aclanthology.org/W16-6311/ 2016-12 81 89