Title
Low-Quality Error Detection for Noisy Knowledge Graphs
Abstract
The automatic construction of knowledge graphs (KGs) from multiple data sources has received increasing attention. The automatic construction process inevitably brings considerable noise, especially in the construction of KGs from unstructured text. The noise in a KG can be divided into two categories: factual noise and low-quality noise. Factual noise refers to plausible triples that meet the requirements of ontology constraints. For example, the plausible triple <New_York, IsCapitalOf, America> satisfies the constraints that the head entity "New_York" is a city and the tail entity "America" belongs to a country. Low-quality noise denotes the obvious errors commonly created in information extraction processes. This study focuses on entity type errors. Most existing approaches concentrate on refining an existing KG, assuming that the type information of most entities or the ontology information in the KG is known in advance. However, such methods may not be suitable at the start of a KG's construction. Therefore, the authors propose an effective framework to eliminate entity type errors. The experimental results demonstrate the effectiveness of the proposed method.
Year
DOI
Venue
2021
10.4018/JDM.2021100104
JOURNAL OF DATABASE MANAGEMENT
Keywords
DocType
Volume
HAO Intelligence, Knowledge Graph Denoising, Noise Detection
Journal
32
Issue
ISSN
Citations 
4
1063-8016
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Chenyang Bu1479.18
Xingchen Yu200.34
Yan Hong300.34
Tingting Jiang401.35