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arXiv 2102.04208cs.LGstat.ML
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神经结构的对比嵌入

Contrastive Embeddings for Neural Architectures

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Daniel Hesslow, Iacopo Poli

摘要:

神经结构搜索算法的性能很大程度上依赖于搜索空间的参数化。我们使用对比学习来识别基于数据雅可比矩阵的不同初始化的网络,并自动产生独立于搜索空间的参数化的第一架构嵌入。使用我们的对比嵌入,我们表明,传统的黑盒优化算法,无需修改,可以达到最先进的性能在神经结构搜索。由于我们的方法提供了一个统一的嵌入空间,我们第一次在搜索空间之间进行迁移学习。最后,我们展示了嵌入在训练过程中的演变,激励未来的研究在不同的训练阶段使用嵌入,以更深入地了解搜索空间中的网络。

英文摘要:

The performance of algorithms for neural architecture search strongly depends on the parametrization of the search space. We use contrastive learning to identify networks across different initializations based on their data Jacobians, and automatically produce the first architecture embeddings independent from the parametrization of the search space. Using our contrastive embeddings, we show that traditional black-box optimization algorithms, without modification, can reach state-of-the-art performance in Neural Architecture Search. As our method provides a unified embedding space, we perform for the first time transfer learning between search spaces. Finally, we show the evolution of embeddings during training, motivating future studies into using embeddings at different training stages to gain a deeper understanding of the networks in a search space.

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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