Complete Pre Processing Phase of Punjabi Text Extractive Summarization System Vishal Gupta author Gurpreet Lehal author 2012-12 text Proceedings of COLING 2012: Demonstration Papers Martin Kay editor Christian Boitet editor The COLING 2012 Organizing Committee Mumbai, India conference publication gupta-lehal-2012-complete https://aclanthology.org/C12-3025/ 2012-12 199 206