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Computer Science, Machine Learning

Efficient Caption Generation with Improved Quality via Hyperparameter Optimization

Efficient Caption Generation with Improved Quality via Hyperparameter Optimization

In this article, we explore a novel approach to image captioning called Context-PEFT, which stands for "Context-based Progressive Fusion of Embeddings and Tokens." Our goal is to enhance the attention mechanism in the captioning process by modulating the fusion of text and image modalities.
Imagine a conversation between two people – one speaking and the other listening. The speaker’s words are like the image tokens, while the listener’s understanding is like the caption generated from the image. Our approach is like adding a coach to the conversation, who helps the listener better understand the speaker by modulating the attention given to different parts of the image.
Context-PEFT works by directly modifying the weights applied to image tokens in the attention mechanism. This allows us to control how much attention is given to each part of the image when generating the caption. By doing so, we can improve the accuracy and relevance of the generated captions.
We evaluate our approach using the COCO (Common Objects in Context) test set and compare it to the state-of-the-art method, MMCA (Multi-Modality Captioning Attention). Our results show that Context-PEFT outperforms MMCA in terms of caption quality and relevance.
In summary, Context-PEFT is a novel approach to image captioning that modulates the attention mechanism to improve the accuracy and relevance of generated captions. By directly modifying the weights applied to image tokens, we can control how much attention is given to each part of the image, resulting in better understanding of the visual content by the AI model.