Re-evaluating Automatic Metrics for Image Captioning
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Abstract (arXiv)
The task of generating natural language descriptions from images has received a lot of attention in recent years. Consequently, it is becoming increasingly important to evaluate such image captioning approaches in an automatic manner. In this paper, we provide an in-depth evaluation of the existing image captioning metrics through a series of carefully designed experiments. Moreover, we explore the utilization of the recently proposed Word Mover's Distance (WMD) document metric for the purpose of image captioning. Our findings outline the differences and/or similarities between metrics and their relative robustness by means of extensive correlation, accuracy and distraction based evaluations. Our results also demonstrate that WMD provides strong advantages over other metrics.
Key facts. Cited by 45 papers in the map (data through 7 Oct 2026). First posted on arXiv 22 Dec 2016.
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Citing papers per year: 2021: 16; 2022: 9; 2023: 2; 2024: 7; 2025: 5; 2026: 6.
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- 2021CLIPScore: A Reference-free Evaluation Metric for Image Captioningcited by 2,388
- 2021Conceptual 12M: Pushing Web-Scale Image-Text Pre-Training To Recognize Long-Tail Visual Conceptscited by 1,209
- 2021From Show to Tell: A Survey on Deep Learning-based Image Captioningcited by 137
- 2021ArtEmis: Affective Language for Visual Artcited by 103
- 2021Visual Semantic Role Labeling for Video Understandingcited by 60
- 2024Image Textualization: An Automatic Framework for Creating Accurate and Detailed Image Descriptionscited by 43
- 2021Transparent Human Evaluation for Image Captioningcited by 40
- 2024Can Large Vision-Language Models Correct Semantic Grounding Errors By Themselves?cited by 20
- 2022Affection: Learning Affective Explanations for Real-World Visual Datacited by 19
- 2021SMURF: SeMantic and linguistic UndeRstanding Fusion for Caption Evaluation via Typicality Analysiscited by 18
- 2022LineCap: Line Charts for Data Visualization Captioning Modelscited by 17
- 2025CaptionQA: Is Your Caption as Useful as the Image Itself?cited by 14
33 more
- 2021Is An Image Worth Five Sentences? A New Look into Semantics for Image-Text Matchingcited by 13
- 2022Biologically Inspired Design Concept Generation Using Generative Pre-Trained Transformerscited by 13
- 2023Visually-Aware Context Modeling for News Image Captioningcited by 12
- 2024HICEScore: A Hierarchical Metric for Image Captioning Evaluationcited by 12
- 2025Patch Matters: Training-free Fine-grained Image Caption Enhancement via Local Perceptioncited by 12
- 2022Code Search based on Context-aware Code Translationcited by 11
- 2021Re-evaluating Word Mover's Distancecited by 10
- 2021Trust It or Not: Confidence-Guided Automatic Radiology Report Generationcited by 9
- 2022Going for GOAL: A Resource for Grounded Football Commentariescited by 7
- 2024Leveraging Professional Radiologists' Expertise to Enhance LLMs' Evaluation for Radiology Reportscited by 7
- 2021Diagnostic Captioning: A Surveycited by 6
- 2021Meta-evaluation of Conversational Search Evaluation Metricscited by 6
- 2023JaSPICE: Automatic Evaluation Metric Using Predicate-Argument Structures for Image Captioning Modelscited by 6
- 2024The Critique of Critiquecited by 5
- 2024Model Fusion through Bayesian Optimization in Language Model Fine-Tuningcited by 5
- 2025Evaluating Text Style Transfer Evaluation: Are There Any Reliable Metrics?cited by 4
- 2022Social Biases in Automatic Evaluation Metrics for NLGcited by 3
- 2022Are metrics measuring what they should? An evaluation of image captioning task metricscited by 2
- 2022Predicting Word Learning in Children from the Performance of Computer Vision Systemscited by 2
- 2021The Role of the Input in Natural Language Video Descriptioncited by 1
- 2021Caption Generation on Scenes with Seen and Unseen Object Categoriescited by 1
- 2021Goal-driven text descriptions for imagescited by 1
- 2022Generative Pre-Trained Transformers for Biologically Inspired Designcited by 1
- 2025LecEval: An Automated Metric for Multimodal Knowledge Acquisition in Multimedia Learningcited by 1
- 2021Empirical Analysis of Image Caption Generation using Deep Learningcited by 0
- 2024Surveying the Landscape of Image Captioning Evaluation: A Comprehensive Taxonomy, Trends and Metrics Analysiscited by 0
- 2025HapticLLaMA: A Multimodal Sensory Language Model for Haptic Captioningcited by 0
- 2026Brazilian Portuguese Image Captioning with Transformers: A Study on Cross-Native-Translated Datasetcited by 0
- 2026Grammatical Error Correction Evaluation by Optimally Transporting Edit Representationcited by 0
- 2026Barycentric alignment for instance-level comparison of neural representationscited by 0
- 2026BYORn: Bootstrap Your Own Responses to Defend Large Vision-Language Models Against Backdoor Attackscited by 0
- 2026Search-based Testing of Vision Language Models for In-Car Scene Understandingcited by 0
- 2026Evolution of Accuracy and Visual-Cognitive Errors in a Decade of Vision-Language AI Modelscited by 0
- 2026Evolution of Accuracy and Visual-Cognitive Errors in a Decade of Vision-Language AI Models10 Jul 2026
- 2026Search-based Testing of Vision Language Models for In-Car Scene Understanding2 Jul 2026
- 2026BYORn: Bootstrap Your Own Responses to Defend Large Vision-Language Models Against Backdoor Attacks1 Jun 2026
- 2026Barycentric alignment for instance-level comparison of neural representations9 Feb 2026
- 2026Grammatical Error Correction Evaluation by Optimally Transporting Edit Representation5 Feb 2026
- 2026Brazilian Portuguese Image Captioning with Transformers: A Study on Cross-Native-Translated Dataset30 Jan 2026
- 2025CaptionQA: Is Your Caption as Useful as the Image Itself?26 Nov 2025
- 2025HapticLLaMA: A Multimodal Sensory Language Model for Haptic Captioning8 Aug 2025
- 2025LecEval: An Automated Metric for Multimodal Knowledge Acquisition in Multimedia Learning4 May 2025
- 2025Patch Matters: Training-free Fine-grained Image Caption Enhancement via Local Perception9 Apr 2025
- 2025Evaluating Text Style Transfer Evaluation: Are There Any Reliable Metrics?7 Feb 2025
- 2024Model Fusion through Bayesian Optimization in Language Model Fine-Tuning11 Nov 2024
33 more
- 2024Surveying the Landscape of Image Captioning Evaluation: A Comprehensive Taxonomy, Trends and Metrics Analysis9 Aug 2024
- 2024HICEScore: A Hierarchical Metric for Image Captioning Evaluation26 Jul 2024
- 2024Image Textualization: An Automatic Framework for Creating Accurate and Detailed Image Descriptions11 Jun 2024
- 2024Can Large Vision-Language Models Correct Semantic Grounding Errors By Themselves?9 Apr 2024
- 2024Leveraging Professional Radiologists' Expertise to Enhance LLMs' Evaluation for Radiology Reports29 Jan 2024
- 2024The Critique of Critique9 Jan 2024
- 2023JaSPICE: Automatic Evaluation Metric Using Predicate-Argument Structures for Image Captioning Models7 Nov 2023
- 2023Visually-Aware Context Modeling for News Image Captioning16 Aug 2023
- 2022Biologically Inspired Design Concept Generation Using Generative Pre-Trained Transformers26 Dec 2022
- 2022Going for GOAL: A Resource for Grounded Football Commentaries8 Nov 2022
- 2022Social Biases in Automatic Evaluation Metrics for NLG17 Oct 2022
- 2022Affection: Learning Affective Explanations for Real-World Visual Data4 Oct 2022
- 2022LineCap: Line Charts for Data Visualization Captioning Models15 Jul 2022
- 2022Predicting Word Learning in Children from the Performance of Computer Vision Systems7 Jul 2022
- 2022Are metrics measuring what they should? An evaluation of image captioning task metrics4 Jul 2022
- 2022Generative Pre-Trained Transformers for Biologically Inspired Design31 Mar 2022
- 2022Code Search based on Context-aware Code Translation16 Feb 2022
- 2021Transparent Human Evaluation for Image Captioning17 Nov 2021
- 2021Is An Image Worth Five Sentences? A New Look into Semantics for Image-Text Matching6 Oct 2021
- 2021Goal-driven text descriptions for images28 Aug 2021
- 2021Caption Generation on Scenes with Seen and Unseen Object Categories13 Aug 2021
- 2021From Show to Tell: A Survey on Deep Learning-based Image Captioning14 Jul 2021
- 2021Trust It or Not: Confidence-Guided Automatic Radiology Report Generation21 Jun 2021
- 2021SMURF: SeMantic and linguistic UndeRstanding Fusion for Caption Evaluation via Typicality Analysis2 Jun 2021
- 2021Re-evaluating Word Mover's Distance30 May 2021
- 2021Empirical Analysis of Image Caption Generation using Deep Learning14 May 2021
- 2021Meta-evaluation of Conversational Search Evaluation Metrics27 Apr 2021
- 2021CLIPScore: A Reference-free Evaluation Metric for Image Captioning18 Apr 2021
- 2021Visual Semantic Role Labeling for Video Understanding2 Apr 2021
- 2021Conceptual 12M: Pushing Web-Scale Image-Text Pre-Training To Recognize Long-Tail Visual Concepts17 Feb 2021
- 2021The Role of the Input in Natural Language Video Description9 Feb 2021
- 2021ArtEmis: Affective Language for Visual Art19 Jan 2021
- 2021Diagnostic Captioning: A Survey18 Jan 2021
- 2024Can Large Vision-Language Models Correct Semantic Grounding Errors By Themselves?cited by 20
- 2026BYORn: Bootstrap Your Own Responses to Defend Large Vision-Language Models Against Backdoor Attackscited by 0
- 2026Search-based Testing of Vision Language Models for In-Car Scene Understandingcited by 0
- 2021CLIPScore: A Reference-free Evaluation Metric for Image Captioningcited by 2,388
- 2021Conceptual 12M: Pushing Web-Scale Image-Text Pre-Training To Recognize Long-Tail Visual Conceptscited by 1,209
- 2021From Show to Tell: A Survey on Deep Learning-based Image Captioningcited by 137
- 2021ArtEmis: Affective Language for Visual Artcited by 103
- 2021Visual Semantic Role Labeling for Video Understandingcited by 60
- 2024Image Textualization: An Automatic Framework for Creating Accurate and Detailed Image Descriptionscited by 43
- 2021Transparent Human Evaluation for Image Captioningcited by 40
- 2022Affection: Learning Affective Explanations for Real-World Visual Datacited by 19
- 2021SMURF: SeMantic and linguistic UndeRstanding Fusion for Caption Evaluation via Typicality Analysiscited by 18
- 2022LineCap: Line Charts for Data Visualization Captioning Modelscited by 17
- 2025CaptionQA: Is Your Caption as Useful as the Image Itself?cited by 14
- 2021Is An Image Worth Five Sentences? A New Look into Semantics for Image-Text Matchingcited by 13
12 most cited of 40 All 40 (JSON)
- 2026Barycentric alignment for instance-level comparison of neural representations9 Feb 2026
- 2026Grammatical Error Correction Evaluation by Optimally Transporting Edit Representation5 Feb 2026
- 2026Brazilian Portuguese Image Captioning with Transformers: A Study on Cross-Native-Translated Dataset30 Jan 2026
- 2025CaptionQA: Is Your Caption as Useful as the Image Itself?26 Nov 2025
- 2025LecEval: An Automated Metric for Multimodal Knowledge Acquisition in Multimedia Learning4 May 2025
- 2025Patch Matters: Training-free Fine-grained Image Caption Enhancement via Local Perception9 Apr 2025
- 2025Evaluating Text Style Transfer Evaluation: Are There Any Reliable Metrics?7 Feb 2025
- 2024Model Fusion through Bayesian Optimization in Language Model Fine-Tuning11 Nov 2024
- 2024Surveying the Landscape of Image Captioning Evaluation: A Comprehensive Taxonomy, Trends and Metrics Analysis9 Aug 2024
- 2024HICEScore: A Hierarchical Metric for Image Captioning Evaluation26 Jul 2024
- 2024Image Textualization: An Automatic Framework for Creating Accurate and Detailed Image Descriptions11 Jun 2024
- 2024Leveraging Professional Radiologists' Expertise to Enhance LLMs' Evaluation for Radiology Reports29 Jan 2024
12 newest of 40 All 40 (JSON)