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Science China(Information Sciences) 2023年第2期66卷 114-126页

作者： Zhongyi HAN Le-Wen CAI Wang-Zhou DAI Yu-Xuan HUANG Benzheng WEI Wei WANG Yilong YIN School of Software Shandong University National Key Laboratory for Novel Software Technology Nanjing University Department of Computing Imperial College London Center for Medical Artificial Intelligence Shandong University of Traditional Chinese Medicine

Bridging neural network learning and symbolic reasoning is crucial for strong AI. Few pioneering studies have made some progress on logical reasoning tasks that require partitioned inputs of instances(e.g.,sequential data), from which a final concept is formed based on the complex(perhaps logical) relationships between them. However, they cannot apply to low-level cognitive tasks that require unpartitioned inputs(e.g., raw images), such as object recognition and text classification. In this paper, we propose abductive subconcept learning(ASL) to bridge neural network learning and symbolic reasoning on unsegmented image classification tasks. ASL uses deep learning and abductive logical reasoning to jointly learn subconcept perception and secondary reasoning. Specifically, it first employs meta-interpretive learning(MIL) to induce first-order logical hypotheses capturing the relationships between the high-level subconcepts that account for the target concept. Then, it uses the groundings of the logical hypotheses as labels to train a deep learning model for identifying the subconcepts from unpartitioned data. ASL jointly trains the deep learning model and learns the MIL theory by minimizing the inconsistency between their grounded outputs. Experimental results show that ASL successfully integrates machine learning and logical reasoning with accurate and interpretable results in several object recognition tasks.

关键词： abductive learning subconcept learning logical reasoning subconcept set selection meta-interpretive learning

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