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arXiv 2204.07005cs.CVcs.AIcs.LGq-bio.NCq-bio.QM
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应用于神经影像学的机器学习方法的可解释性

Interpretability of Machine Learning Methods Applied to Neuroimaging

Sorbonne Université(索邦大学);Institut du Cerveau - Paris Brain Institute - ICM(巴黎大脑研究所(ICM));CNRS(法国国家科学研究中心);Inria(法国国家信息与自动化研究所);Inserm(法国国家健康与医学研究院);AP-HP(巴黎公共援助医院集团);Hôpital de la Pitié-Salpêtrière(皮蒂耶-萨尔佩特里埃医院)

Elina Thibeau-Sutre, Sasha Collin, Ninon Burgos, Olivier Colliot

摘要:

深度学习方法在处理自然图像方面已经变得非常流行,然后被成功地应用于神经成像领域。由于这些方法是不透明的,因此需要可解释性方法来验证它们并确保其可靠性。事实上,已经表明,通过利用训练集中的偏差,即使在使用不相关的特征时,深度学习模型也可以获得高性能。这种不期望的情况可以通过使用可解释性方法来检测。近年来,人们提出了许多解释神经网络的方法。然而,这个领域还不成熟。机器学习用户在解释他们的模型时面临两个主要问题:选择哪种方法,以及如何评估其可靠性?在这里,我们的目标是提供这些问题的答案,提出最常见的可解释性的方法和指标,以评估其可靠性,以及它们的应用程序和基准在神经影像学方面。请注意,这不是一个详尽的调查:我们的目的是集中在我们认为最具代表性和相关性的研究。

英文摘要:

Deep learning methods have become very popular for the processing of natural images, and were then successfully adapted to the neuroimaging field. As these methods are non-transparent, interpretability methods are needed to validate them and ensure their reliability. Indeed, it has been shown that deep learning models may obtain high performance even when using irrelevant features, by exploiting biases in the training set. Such undesirable situations can potentially be detected by using interpretability methods. Recently, many methods have been proposed to interpret neural networks. However, this domain is not mature yet. Machine learning users face two major issues when aiming to interpret their models: which method to choose, and how to assess its reliability? Here, we aim at providing answers to these questions by presenting the most common interpretability methods and metrics developed to assess their reliability, as well as their applications and benchmarks in the neuroimaging context. Note that this is not an exhaustive survey: we aimed to focus on the studies which we found to be the most representative and relevant.

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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