| Challenge: | Existing measures for image caption evaluation fail to capture dimensions of similarity . a novel method that leverages the zero-shot language modeling capabilities of large language models (LLMs) demonstrates a stronger correlation with human judgments of caption quality compared to existing measures. |
| Approach: | They propose a method that leverages the zero-shot language modeling capabilities of large language models to evaluate captions. |
| Outcome: | The proposed method shows a stronger correlation with human judgments of caption quality compared to other measures. |
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| Challenge: | Existing evaluation metrics for image captioning are primarily designed for short captions and are not suitable for long captions. |
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TIGEr: Text-to-Image Grounding for Image Caption Evaluation (D19-1)
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Ming Jiang, Qiuyuan Huang, Lei Zhang, Xin Wang, Pengchuan Zhang, Zhe Gan, Jana Diesner, Jianfeng Gao
| Challenge: | Existing metrics based on text-level comparisons fail to assess the quality of captions produced by machines. |
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CapArena: Benchmarking and Analyzing Detailed Image Captioning in the LLM Era (2025.findings-acl)
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Kanzhi Cheng, Wenpo Song, Jiaxin Fan, Zheng Ma, Qiushi Sun, Fangzhi Xu, Chenyang Yan, Nuo Chen, Jianbing Zhang, Jiajun Chen
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Evaluation of Multilingual Image Captioning: How far can we get with CLIP models? (2025.findings-naacl)
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| Challenge: | Existing approaches to evaluate image captions are English-centric, despite improvements in the CLIPScore metric . however, there are no available benchmarks for multilingual captioning evaluation . |
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SPECS: Specificity-Enhanced CLIP-Score for Long Image Caption Evaluation (2025.emnlp-main)
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| Challenge: | N-gram-based evaluation metrics are unreliable due to low correlation to human judgments. |
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| Challenge: | introducing Large Language Models (LLMs) has opened new avenues for assessing generated content quality, e.g., coherence, creativity, and context relevance. |
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What do Large Language Models Need for Machine Translation Evaluation? (2024.emnlp-main)
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Shenbin Qian, Archchana Sindhujan, Minnie Kabra, Diptesh Kanojia, Constantin Orasan, Tharindu Ranasinghe, Fred Blain
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| Challenge: | Existing pipelines for generating high-quality, ultra-detailed image captions are limited by the scarcity of image caption data. |
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GPT-4 as an Effective Zero-Shot Evaluator for Scientific Figure Captions (2023.findings-emnlp)
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| Challenge: | Existing algorithms that generate captions for scientific figures are costly and dependent on author-written captions. |
| Approach: | They constructed a human evaluation dataset that contains human judgments for 3,600 scientific figure captions for 600 arXiv figures. |
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Are Large Language Model-based Evaluators the Solution to Scaling Up Multilingual Evaluation? (2024.findings-eacl)
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Rishav Hada, Varun Gumma, Adrian Wynter, Harshita Diddee, Mohamed Ahmed, Monojit Choudhury, Kalika Bali, Sunayana Sitaram
| Challenge: | Large Language Models (LLMs) excel in various tasks, but their evaluation, especially in languages beyond the top 20, remains inadequate due to existing benchmarks and metrics limitations. |
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