Anaphora Resolution in Dialogue: Description of the DFKI-TalkingRobots System for the CODI-CRAC 2021 Shared Task

Tatiana Anikina; Cennet Oguz; Natalia Skachkova; Siyu Tao; Sharmila Upadhyaya; Ivana Kruijff-Korbayová

In: Sopan Khosla; Ramesh Manuvinakurike; Vincent Ng; Massimo Poesio; Michael Strube; Carolyn Rosé (Hrsg.). Proceedings of the CODI-CRAC 2021 Shared Task on Anaphora, Bridging, and Discourse Deixis in Dialogue. Workshop on Computational Models of Reference, Anaphora and Coreference (CRAC), CODI-CRAC 2021 Shared Task on Anaphora, Bridging, and Discourse Deixis in Dialogue, located at EMNLP, November 10-11, Punta Cana, Dominican Republic, Pages 32-42, Association for Computational Linguistics, 11/2021.


We describe the system developed by the DFKI-TalkingRobots Team for the CODI-CRAC 2021 Shared-Task on anaphora resolution in dialogue. Our system consists of three subsystems: (1) the Workspace Coreference System (WCS) incrementally clusters mentions using semantic similarity based on embeddings combined with lexical feature heuristics; (2) the Mention-to-Mention (M2M) coreference resolution system pairs same entity mentions; (3) the Discourse Deixis Resolution (DDR) system employs a Siamese Network to detect discourse anaphor-antecedent pairs. WCS achieved F1-score of 55.6% averaged across the evaluation test sets, M2M achieved 57.2% and DDR achieved 21.5%.


Weitere Links

2021.codi-sharedtask.3.pdf (pdf, 345 KB )

Deutsches Forschungszentrum für Künstliche Intelligenz
German Research Center for Artificial Intelligence