arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.12100cs.LGstat.ML
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基于模型可解释性的深度主动学习

Deep Active Learning by Model Interpretability

RealAI(睿尔人工智能);Tsinghua University(清华大学);Sun Yat-sen University(中山大学)

Qiang Liu, Zhaocheng Liu, Xiaofang Zhu, Yeliang Xiu

摘要:

然而,深度神经网络(DNN)最近在各种研究任务中的成功在很大程度上依赖于大量的标记样本。这在实际应用中可能需要相当大的注释成本。幸运的是,主动学习是一种很有前途的方法,训练高性能的模型,以最小的注释成本。在深度学习背景下,主动学习的关键问题是如何精确识别DNN样本的信息量。本文受DNN中分段线性可解释性的启发,将样本的线性可分区域引入到主动学习问题中,提出了一种基于模型可解释性(DAMI)的深度主动学习方法。为了保持整个未标记数据的最大代表性,DAMI试图在DNN中分段线性可解释性引入的不同线性可分离区域上选择和标记样本。我们专注于建模多层感知(MLP)建模表格数据。具体来说,我们使用MLP中的局部分段解释作为每个样本的表示,并直接运行K-Center聚类来选择和标记样本。需要注意的是,DAMI的整个过程不需要手动调整任何超参数。为了验证我们的方法的有效性,广泛的实验已经进行了几个表格数据集。实验结果表明,DAMI不断优于几个国家的最先进的比较方法。

英文摘要:

Recent successes of Deep Neural Networks (DNNs) in a variety of research tasks, however, heavily rely on the large amounts of labeled samples. This may require considerable annotation cost in real-world applications. Fortunately, active learning is a promising methodology to train high-performing model with minimal annotation cost. In the deep learning context, the critical question of active learning is how to precisely identify the informativeness of samples for DNN. In this paper, inspired by piece-wise linear interpretability in DNN, we introduce the linearly separable regions of samples to the problem of active learning, and propose a novel Deep Active learning approach by Model Interpretability (DAMI). To keep the maximal representativeness of the entire unlabeled data, DAMI tries to select and label samples on different linearly separable regions introduced by the piece-wise linear interpretability in DNN. We focus on modeling Multi-Layer Perception (MLP) for modeling tabular data. Specifically, we use the local piece-wise interpretation in MLP as the representation of each sample, and directly run K-Center clustering to select and label samples. To be noted, this whole process of DAMI does not require any hyper-parameters to tune manually. To verify the effectiveness of our approach, extensive experiments have been conducted on several tabular datasets. The experimental results demonstrate that DAMI constantly outperforms several state-of-the-art compared approaches.

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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