Unsupervised Discovery of Firm-Level Variables in Earnings Call Transcript Embeddings Daniel Edmiston author Ziho Park author 2020-5 jan text Proceedings of the Second Workshop on Financial Technology and Natural Language Processing Chung-Chi Chen editor Hen-Hsen Huang editor Hiroya Takamura editor Hsin-Hsi Chen editor - Kyoto, Japan conference publication edmiston-park-2020-unsupervised https://aclanthology.org/2020.finnlp-1.6/ 2020-5 jan 34 39