PSVMA+: Exploring Multi-granularity Semantic-visual Adaption for Generalized Zero-shot Learning

• URL: http://arxiv.org/abs/2410.11560v1
• Date: Tue, 15 Oct 2024 12:49:33 GMT
• Title: PSVMA+: Exploring Multi-granularity Semantic-visual Adaption for Generalized Zero-shot Learning
• Authors: Man Liu, Huihui Bai, Feng Li, Chunjie Zhang, Yunchao Wei, Meng Wang, Tat-Seng Chua, Yao Zhao,
• Abstract summary: Generalized zero-shot learning (GZSL) endeavors to identify the unseen using knowledge from the seen domain. GZSL suffers from insufficient visual-semantic correspondences due to attribute diversity and instance diversity. We propose a multi-granularity progressive semantic-visual adaption network, where sufficient visual elements can be gathered to remedy the inconsistency.
• Score: 116.33775552866476
• License:
• Abstract: Generalized zero-shot learning (GZSL) endeavors to identify the unseen categories using knowledge from the seen domain, necessitating the intrinsic interactions between the visual features and attribute semantic features. However, GZSL suffers from insufficient visual-semantic correspondences due to the attribute diversity and instance diversity. Attribute diversity refers to varying semantic granularity in attribute descriptions, ranging from low-level (specific, directly observable) to high-level (abstract, highly generic) characteristics. This diversity challenges the collection of adequate visual cues for attributes under a uni-granularity. Additionally, diverse visual instances corresponding to the same sharing attributes introduce semantic ambiguity, leading to vague visual patterns. To tackle these problems, we propose a multi-granularity progressive semantic-visual mutual adaption (PSVMA+) network, where sufficient visual elements across granularity levels can be gathered to remedy the granularity inconsistency. PSVMA+ explores semantic-visual interactions at different granularity levels, enabling awareness of multi-granularity in both visual and semantic elements. At each granularity level, the dual semantic-visual transformer module (DSVTM) recasts the sharing attributes into instance-centric attributes and aggregates the semantic-related visual regions, thereby learning unambiguous visual features to accommodate various instances. Given the diverse contributions of different granularities, PSVMA+ employs selective cross-granularity learning to leverage knowledge from reliable granularities and adaptively fuses multi-granularity features for comprehensive representations. Experimental results demonstrate that PSVMA+ consistently outperforms state-of-the-art methods.

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