Cited by 165Speech and dialogue systemsNatural Language Processing TechniquesTopic Modeling

USR: An Unsupervised and Reference Free Evaluation Metric for Dialog Generation

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Mehri, Shikib, Eskenazi, Maxine·2020·Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics

Abstract

The lack of meaningful automatic evaluation metrics for dialog has impeded open-domain dialog research.Standard language generation metrics have been shown to be ineffective for evaluating dialog models.To this end, this paper presents USR, an UnSupervised and Reference-free evaluation metric for dialog.USR is a reference-free metric that trains unsupervised models to measure several desirable qualities of dialog.USR is shown to strongly correlate with human judgment on both Topical-Chat (turn-level: 0.42, systemlevel: 1.0) and PersonaChat (turn-level: 0.48 and system-level: 1.0).USR additionally produces interpretable measures for several desirable properties of dialog.

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  • USR is an open-domain dialogue dataset where the task is dialogue response generation, with outputs being continuations of dialogue contexts and expert evaluators providing ratings across six dimensions of dialogue quality.

    “USR (Mehri and Eskenazi, 2020) is an opendomain dialogue dataset, where the task is dialogue response generation.The outputs are continuations of dialogue contexts, and expert evaluators provide ratings across six dimensions of dialogue quality.”

    From Learning to Judge: LLMs Designing and Applying Evaluation Rubrics (2026) · cites this paper as Mehri and Eskenazi, 2020

    Section 3 (Human Quality Annotation; page unavailable) describes responses to open-domain dialogue contexts rated by human annotators on six quality dimensions, and Section 3.4 identifies the annotators as dialogue researchers. But the Introduction and Conclusions identify USR as an evaluation metric, not the name of a dialogue dataset; the annotations were collected using Topical-Chat and PersonaChat. (LLM, conf=0.88)

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  • Mehri and Eskenazi (2020) and Pang et al. (2020) suggested using large pretrained language models to develop reference-response-free metrics for dialogue evaluation.

    “Recently, Mehri and Eskenazi (2020) and Pang et al. (2020) suggested to use large pretrained language models (Liu et al., 2019;Radford et al., 2019) to develop reference-response-free metrics for dialogue evaluation.”

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Research works printed but not linked: 2

  1. Gabriel Forgues, Joelle Pineau, Jean-Marie Larchevêque, and Réal Tremblay. 2014. Boot- strapping dialog systems with word embeddings. In Nips, modern machine learning and natural language processing workshop, volume 2.
  2. Alessandro Sordoni, Michel Galley, Michael Auli, Chris Brockett, Yangfeng Ji, Margaret Mitchell, Jian-Yun Nie, Jianfeng Gao, and William B. Dolan. 2015. A neural network approach to context- sensitive generation of conversational responses. In HLT-NAACL.

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Authors
Mehri, S., & Eskenazi, M.
Affiliations
Carnegie Mellon University (US)
Venue
Proceedings of the 58th Annual Meeting of the Association for Computational Linguistics
Published
2020
Pages
681-707
ISSN
0736-587X (ISSN-L)
OpenAlex
W3023366413
Cited by
149
References
27
Citations by year
2026: 15 · 2025: 12 · 2024: 16 · 2023: 40 · 2022: 26 · 2021: 37 · 2020: 3
FWCI
10.12
Type
conference paper
Language
en
Open access
Licence
cc-by
Locations
  • Proceedings of the conference - Association for Computational Linguistics. Meeting (publishedVersion, cc-by)
  • arXiv (Cornell University) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Speech and dialogue systems
  • Physical Sciences › Computer Science › Artificial Intelligence › Natural Language Processing Techniques
  • Physical Sciences › Computer Science › Artificial Intelligence › Topic Modeling
Keywords
dialogue generation, automatic evaluation metrics, reference-free evaluation, unsupervised learning, open-domain dialogue systems, dialogue quality, human judgment correlation

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