HKUST Knowledge Base Group of Prof. Lei Chen

Welcome to our

Knowledge Base Group

Our group explores research related to knowledge graph construction and refinement, from algorithms design to applications development. Our research is motivated by new technologies and new applications.

We conduct our research works under the supervision of Professor Lei CHEN. We are part of the Department of Computer Science and Engineering at the The Hong Kong University of Science and Technology.

Research Topics

We are interested in the following topics.

Summarized surveys and tutorials

Knowledge Integration

Data Fusion (Truth Discovery)
Data Integration
Data Cleaning

Knowledge Base Refinement

Canonicalization of Open Knowledge Bases
Outdatedness Prediction in Knowledge Bases
Taxonomy Construction for Domain-Specific Knowledge Bases

Knowledge Base Construction

Subjective Knowledge Base Construction
Distant Supervised Domain-Specific Knowledge Base Construction (Project)
- Entity Recognition
- Entity Disambiguration
- Relation Extraction

Publications

Hao Xin, Lei Chen:KartGPS: Knowledge Base Update with Temporal Graph Pattern-based Semantic Rules. ICDE 2024.
Yushi Sun, Jiachuan Wang, Peng Cheng, Libin Zheng, Lei Chen, Jian Yin:Cross-domain-aware Worker Selection with Training for Crowdsourced Annotation. ICDE 2024.
Yubo Wang, Hao Xin, Lei Chen:KGLink: A column type annotation method that combines knowledge graph and pre-trained language model. ICDE 2024.
Jiawei Zhou, Xiaoguang Li, Lifeng Shang, Xin Jiang, Qun Liu,Lei Chen: Retrieval-based Disentangled Representation Learning with Natural Language Supervision. ICLR 2024.
Zhifeng Jia, Haoyang Li, Lei hen:AIR: Adaptive Incremental Embedding Updating for Dynamic Knowledge Graphs. DASFAA (2) 2023: 606-621
Yushi Sun, Hao Xin, Lei Chen:RECA: Related Tables Enhanced Column Semantic Type Annotation Framework. Proc. VLDB Endow. 16(6): 1319-1331 (2023)
Chengmin Wu, Enrui Hu, Ke Zhan, Lan Luo, Xinyu Zhang, Hao Jiang, Qirui Wang, Zhao Cao, Fan Yu, Lei Chen:Triple-Fact Retriever: An explainable reasoning retrieval model for multi-hop QA problem. ICDE 2022: 1206-1218.
Hao Xin, Xueling Lin, Lei Chen, "CaSIE: Canonicalize and Informative Selection of the OpenIE system.", ICDE 2021: 2009-2014.
Haoyang Li, Xueling Lin, Lei Chen, "Fine-Grained Entity Typing via Label Noise Reduction and Data Augmentation.", DASFAA (1) 2021: 356-374.
Xueling Lin, Lei Chen, Chaorui Zhang, "TENET: Joint Entity and Relation Linking with Coherence Relaxation.", In Proceedings of the 2018 International Conference on Management of Data (SIGMOD), pp. 1142-1155. ACM, 2021.
Xueling Lin, Haoyang Li, Hao Xin, Zijian Li, and Lei Chen. "KBPearl: a Knowledge Base Population System Supported by Joint Entity and Relation Linking.", Proceedings of the VLDB Endowment 13, no. 7 (2020): 1035-1049.
Yongqi Zhang, Quanming Yao, Wenyuan Dai, Lei Chen. "AutoSF: Searching Scoring Functions for Knowledge Graph Embedding.", In 2020 IEEE 36th International Conference on Data Engineering (ICDE).
Yongqi Zhang, Quanming Yao, Yingxia Shao, Lei Chen. "Nscaching: Simple and Efficient Negative Sampling for Knowledge Graph Embedding.", In 2019 IEEE 35th International Conference on Data Engineering (ICDE), pp. 614-625. IEEE, 2019.
Xueling Lin, and Lei Chen. "Canonicalization of Open Knowledge Bases with Side Information from Source Text.", In 2019 IEEE 35th International Conference on Data Engineering (ICDE), pp. 950-961. IEEE, 2019.
Hao Xin, Rui Meng, and Lei Chen. "Subjective Knowledge Base Construction Powered By Crowdsourcing and Knowledge Base." In Proceedings of the 2018 International Conference on Management of Data (SIGMOD), pp. 1349-1361. ACM, 2018. [PDF]
Xueling Lin, and Lei Chen. "Domain-Aware Multi-Truth Discovery from Conflicting Sources." Proceedings of the VLDB Endowment 11, no. 5 (2018): 635-647. [PDF][Dataset]
Linnan Jiang, Lei Chen, and Zhao Chen. "Knowledge Base Enhancement via Data Facts and Crowdsourcing." In 2018 IEEE 34th International Conference on Data Engineering (ICDE), pp. 1109-1119. IEEE, 2018. [PDF]
Rui Meng, Lei Chen, Yongxin Tong, Chen Zhang. "Knowledge Base Semantic Integration using Crowdsourcing", IEEE Transactions on Knowledge and Data Engineering (TKDE), 29(5):1087-1110, 2017.
Yunfan Chen, Jason Chen Zhang, Lei Chen. "CrowdFusion: A Crowdsourced Approach on Data Fusion Refinement". IEEE International Conference on Data Engineering (ICDE), San Diego, CA, USA, April 19-22, 2017.
Rui Meng, Yongxin Tong, Lei Chen, Caleb Chen Cao. "CrowdTC: CrowdSourced Taxonomy Construction". IEEE International Conference on Data Mining (ICDM), Atlantic City, NJ, USA, Nov 2015.