Author: Zhao, Zihao
Title: Interactive ensemble learning for knowledge graph error detection
Degree: M.Sc.
Year: 2021
Subject: Semantic networks (Information theory)
Knowledge management
Artificial intelligence
Hong Kong Polytechnic University -- Dissertations
Department: Department of Computing
Pages: vii, 62 pages : color illustrations
Language: English
Abstract: Knowledge Graphs(KGs) now stand as the promising way to process relational data, embodying the relations among various real­world entities in the form of triplets. In the nature of things, to single out the anomalies in KGs has been a priority for us while the source of traditional knowledge extraction is not guaranteed. Recent years, many efforts have been laid on the KG error detection algorithms. However, there are not any general detection algorithms for all types of KGs and industrial scenarios for KG error detection, let alone the well­below performances of existing ones when it comes to real world demands. To solve this problem, human are qualified to recognize the normal triples and abnormal ones. Nevertheless, it is impratical for us to involve human efforts in the whole processes of detection for the big costs in extraordinary large size of different KGs, such kind of manual labeling will be extremely expensive. Meanwhile, advances in semi­supervised learning and few­shot learning demonstrate that a small number of labels might greatly improve the learning performance. Thus, in this paper, we propose IKGED as an interactive KG error detection algorithm, exploring to leverage a small amount of human efforts to significantly advance the KG error detection. Specifically, to take full advantages of human efforts, in each iteration, we propose to enhance our querying strategy based on the feedback from human annotations.
Rights: All rights reserved
Access: restricted access

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Please use this identifier to cite or link to this item: https://theses.lib.polyu.edu.hk/handle/200/11337