NMF Ensembles? Not for Text Summarization! Alka Khurana author Vasudha Bhatnagar author 2020-11 text Proceedings of the First Workshop on Insights from Negative Results in NLP Anna Rogers editor João Sedoc editor Anna Rumshisky editor Association for Computational Linguistics Online conference publication khurana-bhatnagar-2020-nmf 10.18653/v1/2020.insights-1.14 https://aclanthology.org/2020.insights-1.14/ 2020-11 88 93