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arXiv 2402.09416q-bio.BMcs.LG
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用于蛋白质表示学习的深度流形变换

Deep Manifold Transformation for Protein Representation Learning

Zhejiang University(浙江大学);Westlake University(西湖大学)

Bozhen Hu, Zelin Zang, Cheng Tan, Stan Z. Li

AI总结:

针对蛋白质表示未充分优化导致性能下降的问题,提出深度流形变换方法DMTPRL,通过引入基于图节点间相似性的流形学习损失提升嵌入质量,在多数据集下游任务上优于基线。

摘要:

蛋白质表示学习在药物设计和蛋白质结构或功能预测等各种生物学任务中至关重要,主要受益于蛋白质语言模型和图神经网络。这些模型可以通过掩码和任务相关的损失从蛋白质序列和结构中捕获内在模式。然而,学习到的蛋白质表示通常没有得到很好的优化,由于数据有限、难以适应新任务等原因导致性能下降。为了解决这个问题,我们提出了一种新的深度流形变换方法,用于通用蛋白质表示学习(DMTPRL)。它采用流形学习策略来提高学习嵌入的质量和适应性。具体来说,我们在训练过程中基于图节点间相似性应用了一种新的流形学习损失。我们提出的 DMTPRL 方法在流行数据集的多样化下游任务上优于最先进的基线。这验证了我们方法在学习通用且鲁棒的蛋白质表示方面的有效性。我们承诺在论文被接收后发布代码。

英文摘要:

Protein representation learning is critical in various tasks in biology, such as drug design and protein structure or function prediction, which has primarily benefited from protein language models and graph neural networks. These models can capture intrinsic patterns from protein sequences and structures through masking and task-related losses. However, the learned protein representations are usually not well optimized, leading to performance degradation due to limited data, difficulty adapting to new tasks, etc. To address this, we propose a new \underline{d}eep \underline{m}anifold \underline{t}ransformation approach for universal \underline{p}rotein \underline{r}epresentation \underline{l}earning (DMTPRL). It employs manifold learning strategies to improve the quality and adaptability of the learned embeddings. Specifically, we apply a novel manifold learning loss during training based on the graph inter-node similarity. Our proposed DMTPRL method outperforms state-of-the-art baselines on diverse downstream tasks across popular datasets. This validates our approach for learning universal and robust protein representations. We promise to release the code after acceptance.

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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