Improving Contrastive Learning of Sentence Embeddings with Focal InfoNCE Pengyue Hou author Xingyu Li author 2023-12 text Findings of the Association for Computational Linguistics: EMNLP 2023 Houda Bouamor editor Juan Pino editor Kalika Bali editor Association for Computational Linguistics Singapore conference publication hou-li-2023-improving 10.18653/v1/2023.findings-emnlp.315 https://aclanthology.org/2023.findings-emnlp.315/ 2023-12 4757 4762