CLID: Controlled-Length Image Descriptions with Limited Data

• URL: http://arxiv.org/abs/2211.14835v2
• Date: Sun, 21 Jan 2024 11:13:31 GMT
• Title: CLID: Controlled-Length Image Descriptions with Limited Data
• Authors: Elad Hirsch and Ayellet Tal
• Abstract summary: This paper focuses on controlling the caption length, i.e. a short and concise description or a long and detailed one. Since existing image captioning datasets contain mostly short captions, generating long captions is challenging. To address the shortage of long training examples, we propose to enrich the dataset with varying-length self-generated captions.
• Score: 14.857590796528902
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Controllable image captioning models generate human-like image descriptions, enabling some kind of control over the generated captions. This paper focuses on controlling the caption length, i.e. a short and concise description or a long and detailed one. Since existing image captioning datasets contain mostly short captions, generating long captions is challenging. To address the shortage of long training examples, we propose to enrich the dataset with varying-length self-generated captions. These, however, might be of varying quality and are thus unsuitable for conventional training. We introduce a novel training strategy that selects the data points to be used at different times during the training. Our method dramatically improves the length-control abilities, while exhibiting SoTA performance in terms of caption quality. Our approach is general and is shown to be applicable also to paragraph generation.

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