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arXiv 2408.05097cs.LGcs.AI
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使用多模态大型语言模型进行双曲学习

Hyperbolic Learning with Multimodal Large Language Models

Sapienza University of Rome(罗马大学);Panasonic Corp. of North America(北美松下公司);University of California Berkeley(加州大学伯克利分校);ItalAI s.r.l.(意途人工智能有限公司)

Paolo Mandica, Luca Franco, Konstantinos Kallidromitis, Suzanne Petryk, Fabio Galasso

AI总结:

本文针对双曲多模态模型扩展难题,基于 BLIP-2 提出稳定训练策略,使数十亿参数双曲版本达到欧几里得版本相当性能并保留不确定性表征。

摘要:

双曲嵌入已在图像分割和主动学习等多种深度学习任务中证明了其在捕捉不确定性度量和层级关系方面的有效性。然而,它们在现代视觉-语言模型(VLM)中的应用一直有限。一个值得注意的例外是 MERU,它在包含数亿参数的 CLIP ViT-large 模型中利用了双曲空间的层级特性。在我们的工作中,我们利用 BLIP-2 架构,应对将多模态双曲模型在参数量(数十亿)和训练复杂度方面扩展数个数量级所带来的挑战。尽管双曲嵌入提供了欧几里得嵌入所不具备的关于不确定性的潜在洞察,但我们的分析表明,扩展这些模型尤其困难。我们为 BLIP-2 的双曲版本提出了一种新颖的训练策略,使其能够达到与欧几里得对应版本相当的性能,同时在整个训练过程中保持稳定性,并通过每个嵌入显示出有意义的不确定性指示。

英文摘要:

Hyperbolic embeddings have demonstrated their effectiveness in capturing measures of uncertainty and hierarchical relationships across various deep-learning tasks, including image segmentation and active learning. However, their application in modern vision-language models (VLMs) has been limited. A notable exception is MERU, which leverages the hierarchical properties of hyperbolic space in the CLIP ViT-large model, consisting of hundreds of millions parameters. In our work, we address the challenges of scaling multi-modal hyperbolic models by orders of magnitude in terms of parameters (billions) and training complexity using the BLIP-2 architecture. Although hyperbolic embeddings offer potential insights into uncertainty not present in Euclidean embeddings, our analysis reveals that scaling these models is particularly difficult. We propose a novel training strategy for a hyperbolic version of BLIP-2, which allows to achieve comparable performance to its Euclidean counterpart, while maintaining stability throughout the training process and showing a meaningful indication of uncertainty with each embedding.

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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