Generate, Delete and Rewrite: A Three-Stage Framework for Improving Persona Consistency of Dialogue Generation (2020.acl-main)
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| Challenge: | Existing persona-based dialogue models generate human-like responses but can hardly avoid the generation of inconsistent persona words. |
| Approach: | They propose a framework that deletes inconsistent words from a generated response prototype and further rewrites it to a personality-consistent one. |
| Outcome: | The proposed framework achieves good performance on the persona-chat dataset. |
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| Challenge: | Existing methods for multi-session persona-based dialogue generation typically retrieve persona information before response generation, which can constrain diversity and result in generic outputs. |
| Approach: | They propose a two-stage framework that reverses the process of retrieving persona information before response generation. |
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| Challenge: | Existing methods suffer from incomprehensive persona tags that have unique and obscure meanings to describe human’s personality. |
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Donghyun Kim, Youbin Ahn, Wongyu Kim, Chanhee Lee, Kyungchan Lee, Kyong-Ho Lee, Jeonguk Kim, Donghoon Shin, Yeonsoo Lee
| Challenge: | Existing researches have focused on generating diverse and consistent responses based on personal traits. |
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| Challenge: | Existing methods for improving persona consistency in dialogues require external resources. |
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| Challenge: | Existing models for introducing explicit personas are expensive due to their expensive collection costs. |
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| Challenge: | Existing models for personalized dialogue generation tend to be self-centered, with little care for the user in the dialogue. |
| Approach: | They propose a personalized dialogue generator by detecting an implicit user persona and using conditional variational inference to model the user's potential persona with no external knowledge. |
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Will I Sound Like Me? Improving Persona Consistency in Dialogues through Pragmatic Self-Consciousness (2020.emnlp-main)
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| Challenge: | Existing models for improving consistency often train with additional NLI labels or attach trained extra modules to the generative agent. |
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Toward Stance-based Personas for Opinionated Dialogues (2020.findings-emnlp)
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| Challenge: | chit-chat neural models lacking specificity and coherence, argues a new study on stance-based personas . stancebased personal representations lack generalization capability, allowing agents to sustain personal points of view both within the same conversation and across different discussions. |
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Don’t Say That! Making Inconsistent Dialogue Unlikely with Unlikelihood Training (2020.acl-main)
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| Challenge: | Unlikelihood is a technique developed for removal of repetition in language model completions . it allows for a model to be generalized to solve a number of problems . |
| Approach: | They extend the unlikelihood objective to generate generations that contain repetitions . they show that such an objective can be used to improve logical consistency . |
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Less is More: Learning to Refine Dialogue History for Personalized Dialogue Generation (2022.naacl-main)
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| Challenge: | Existing personalized dialogue systems extract user profiles from dialogue history to guide personalized response generation. |
| Approach: | They propose to refine the user dialogue history on a large scale to obtain more persona information from the dialogue history and leverage other similar users' data to enhance personalization. |
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