Zero-Shot Learning -- A Comprehensive Evaluation of the Good, the Bad and the Ugly
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Cited by 20 in Multimodal LLMs / vision-language models, but placed by its own abstract, which didn’t fit.
Abstract (arXiv)
Due to the importance of zero-shot learning, i.e. classifying images where there is a lack of labeled training data, the number of proposed approaches has recently increased steadily. We argue that it is time to take a step back and to analyze the status quo of the area. The purpose of this paper is three-fold. First, given the fact that there is no agreed upon zero-shot learning benchmark, we first define a new benchmark by unifying both the evaluation protocols and data splits of publicly available datasets used for this task. This is an important contribution as published results are often not comparable and sometimes even flawed due to, e.g. pre-training on zero-shot test classes. Moreover, we propose a new zero-shot learning dataset, the Animals with Attributes 2 (AWA2) dataset which we make publicly available both in terms of image features and the images themselves. Second, we compare and analyze a significant number of the state-of-the-art methods in depth, both in the classic zero-shot setting but also in the more realistic generalized zero-shot setting. Finally, we discuss in detail the limitations of the current status of the area which can be taken as a basis for advancing it.
Key facts. Cited by 536 papers in the map (data through 7 Oct 2026). First posted on arXiv 3 Jul 2017.
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Citing papers per year: 2018: 1; 2019: 0; 2020: 0; 2021: 126; 2022: 117; 2023: 94; 2024: 103; 2025: 69; 2026: 26.
536 papers.
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- 2022GLM-130B: An Open Bilingual Pre-trained Modelcited by 837
- 2021Domain Generalization: A Surveycited by 760
- 2021LiT: Zero-Shot Transfer with Locked-image text Tuningcited by 572
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- 2024PromptKD: Unsupervised Prompt Distillation for Vision-Language Models5 Mar 2024
- 2023Follow-Up Differential Descriptions: Language Models Resolve Ambiguities for Image Classification10 Nov 2023
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- 2026AnimalLift: Reconstructing Animatable 3D Animals from a Single Image by Learning Canonical Shape, Texture, and Fur Maps8 Sep 2026
- 2026CAST: Closed-form Analytic Semantic Transfer for Zero-Shot Classifier Extension13 Aug 2026
- 2026Evidential Rule Learning for Interpretable Classification with Abstention6 Aug 2026
- 2026Bridging Vision and Language Concepts through Optimal Transport Semantic Flow25 Jun 2026
- 2026Closing the Modality Gap in Zero-Shot HAR: Contrastive Training and Separability-Optimized Prototypes on IMU Data9 Jun 2026
- 2026In Defense of Information Leakage in Concept-based Models9 Jun 2026
- 2026Formal Concept Lattices are Good Semantic Scaffolds for Concept-Based Learning3 Jun 2026
- 2026Ten Headache Specialists versus Artificial Intelligence for Clinical Literature Summarization: A Critical Evaluation and Comparison3 Jun 2026
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