arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2402.13587cs.CLcs.CV
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一种面向电商商品描述生成的多模态上下文内调优方法

A Multimodal In-Context Tuning Approach for E-Commerce Product Description Generation

Harbin Institute of Technology, Shenzhen(哈尔滨工业大学(深圳));Hong Kong University of Science and Technology(香港科技大学);Meituan(美团)

Yunxin Li, Baotian Hu, Wenhan Luo, Lin Ma, Yuxin Ding, Min Zhang

AI总结:

针对电商商品描述生成准确性低、内容泛化的问题,提出多模态上下文内调优方法ModICT,通过引入相似样本参考、冻结主干模型优化上下文相关模块,显著提升了生成描述的准确性与多样性。

摘要:

本文提出了一种借助营销关键词增强、从图像生成商品描述的新任务设定,该设定利用视觉与文本信息的融合能力,生成更贴合商品独特特征的描述。针对该设定,现有方法使用视觉编码器和文本编码器分别对图像与关键词进行编码,再采用基于语言模型的解码器生成商品描述。但由于同类商品的文案较为相似,且在大规模样本上优化整体框架会让模型聚焦于通用词汇、忽略商品特性,因此生成的描述往往准确性不足且内容泛化。为缓解这一问题,我们提出了一种简单有效的多模态上下文内调优方法,名为ModICT,该方法引入相似商品样本作为参考,利用语言模型的上下文学习能力生成描述。训练过程中,我们冻结视觉编码器和语言模型,重点优化负责构建多模态上下文参考与动态提示的模块。该方法保留了大语言模型(LLMs)的语言生成能力,大幅提升了描述的多样性。为评估ModICT在不同规模、不同类型语言模型上的效果,我们从电商领域三个不同商品类别中收集了数据。大量实验表明,与传统方法相比,ModICT显著提升了生成结果的准确性(Rouge-L指标最高提升3.3%)和多样性(D-5指标最高提升9.4%)。研究结果表明,ModICT作为一款实用工具,有望在各类应用中提升商品描述自动生成的效果。代码可访问:https://github.com/HITsz-TMG/Multimodal-In-Context-Tuning

英文摘要:

In this paper, we propose a new setting for generating product descriptions from images, augmented by marketing keywords. It leverages the combined power of visual and textual information to create descriptions that are more tailored to the unique features of products. For this setting, previous methods utilize visual and textual encoders to encode the image and keywords and employ a language model-based decoder to generate the product description. However, the generated description is often inaccurate and generic since same-category products have similar copy-writings, and optimizing the overall framework on large-scale samples makes models concentrate on common words yet ignore the product features. To alleviate the issue, we present a simple and effective Multimodal In-Context Tuning approach, named ModICT, which introduces a similar product sample as the reference and utilizes the in-context learning capability of language models to produce the description. During training, we keep the visual encoder and language model frozen, focusing on optimizing the modules responsible for creating multimodal in-context references and dynamic prompts. This approach preserves the language generation prowess of large language models (LLMs), facilitating a substantial increase in description diversity. To assess the effectiveness of ModICT across various language model scales and types, we collect data from three distinct product categories within the E-commerce domain. Extensive experiments demonstrate that ModICT significantly improves the accuracy (by up to 3.3% on Rouge-L) and diversity (by up to 9.4% on D-5) of generated results compared to conventional methods. Our findings underscore the potential of ModICT as a valuable tool for enhancing automatic generation of product descriptions in a wide range of applications. Code is at: https://github.com/HITsz-TMG/Multimodal-In-Context-Tuning

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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