arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2107.13093cs.CVcs.AIcs.LG
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基于少样本学习的稀疏数据集人体细胞自动分类

Automated Human Cell Classification in Sparse Datasets using Few-Shot Learning

University of British Columbia(不列颠哥伦比亚大学);Helwan University(赫尔万大学)

Reece Walsh, Mohamed H. Abdelpakey, Mohamed S. Shehata, Mostafa M. Mohamed

摘要:

分类和分析人体细胞是一个漫长的过程,通常需要训练有素的专业人员。为了加速这一过程,一个活跃的研究领域涉及通过使用基于深度学习的技术来自动化细胞分类。在实践中,需要大量的数据来精确地训练这些深度学习模型。然而,由于目前可用的稀疏人类细胞数据集,这些模型的性能通常较低。本研究调查了使用基于少样本学习的技术来减轻精确训练的数据要求的可行性。该研究包括三个部分:第一,当前国家的最先进的少样本学习技术评估人类细胞分类。选定的技术在非医学数据集上进行训练,然后在两个域外人类细胞数据集上进行测试。结果表明,总体而言,当从非医疗数据集转换为医疗数据集时,最先进技术的测试准确性至少降低了30%。其次,本研究评估了在当前最先进的少样本学习技术用于人类细胞分类时,改变骨干结构和训练方案的潜在益处(如果有的话)。即使有这些变化,整体测试准确率也从非医疗数据集的88.66%下降到医疗数据集的44.13%。第三,本研究提出了在人类细胞分类中使用少样本学习的未来方向。一般来说,少样本学习在其当前状态下对人类细胞分类的表现很差。该研究证明,试图修改现有的网络架构是无效的,并得出结论,未来的研究工作应集中在提高鲁棒性对域外测试使用优化为基础的或自我监督的少样本学习技术。

英文摘要:

Classifying and analyzing human cells is a lengthy procedure, often involving a trained professional. In an attempt to expedite this process, an active area of research involves automating cell classification through use of deep learning-based techniques. In practice, a large amount of data is required to accurately train these deep learning models. However, due to the sparse human cell datasets currently available, the performance of these models is typically low. This study investigates the feasibility of using few-shot learning-based techniques to mitigate the data requirements for accurate training. The study is comprised of three parts: First, current state-of-the-art few-shot learning techniques are evaluated on human cell classification. The selected techniques are trained on a non-medical dataset and then tested on two out-of-domain, human cell datasets. The results indicate that, overall, the test accuracy of state-of-the-art techniques decreased by at least 30% when transitioning from a non-medical dataset to a medical dataset. Second, this study evaluates the potential benefits, if any, to varying the backbone architecture and training schemes in current state-of-the-art few-shot learning techniques when used in human cell classification. Even with these variations, the overall test accuracy decreased from 88.66% on non-medical datasets to 44.13% at best on the medical datasets. Third, this study presents future directions for using few-shot learning in human cell classification. In general, few-shot learning in its current state performs poorly on human cell classification. The study proves that attempts to modify existing network architectures are not effective and concludes that future research effort should be focused on improving robustness towards out-of-domain testing using optimization-based or self-supervised few-shot learning techniques.

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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