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Benchmarking Node Outlier Detection on Graphs



Kay Liu , Yingtong Dou , Yue Zhao , Xueying Ding , Xiyang Hu , Ruitong Zhang , Kaize Ding , Canyu Chen , Hao Peng , Kai Shu , Lichao Sun , Jundong Li , George H. Chen , Zhihao Jia , Philip S. Yu

* Preprint. Under review. Benchmark available at https://github.com/pygod-team/pygod/tree/main/benchmark 

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Collaborative Knowledge Graph Fusion by Exploiting the Open Corpus



Yue Wang , Yao Wan , Lu Bai , Lixin Cui , Zhuo Xu , Ming Li , Philip S. Yu , Edwin R Hancock

* Under review by IEEE Transactions on Knowledge and Data Engineering (TKDE) 

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Towards Target Sequential Rules



Wensheng Gan , Gengsen Huang , Jian Weng , Tianlong Gu , Philip S. Yu

* Preprint. 6 figures, 3 tables 

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Rethinking and Scaling Up Graph Contrastive Learning: An Extremely Efficient Approach with Group Discrimination



Yizhen Zheng , Shirui Pan , Vincent Cs Lee , Yu Zheng , Philip S. Yu


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A Multi-level Supervised Contrastive Learning Framework for Low-Resource Natural Language Inference



Shu'ang Li , Xuming Hu , Li Lin , Aiwei Liu , Lijie Wen , Philip S. Yu


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Evidential Temporal-aware Graph-based Social Event Detection via Dempster-Shafer Theory



Jiaqian Ren , Lei Jiang , Hao Peng , Zhiwei Liu , Jia Wu , Philip S. Yu

* Accepted by ICWS2022 

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HiURE: Hierarchical Exemplar Contrastive Learning for Unsupervised Relation Extraction



Shuliang Liu , Xuming Hu , Chenwei Zhang , Shu`ang Li , Lijie Wen , Philip S. Yu

* Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics 
* In NAACL 2022 as a long paper. Code and data available at https://github.com/THU-BPM/HiURE 

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XLTime: A Cross-Lingual Knowledge Transfer Framework for Temporal Expression Extraction



Yuwei Cao , William Groves , Tanay Kumar Saha , Joel R. Tetreault , Alex Jaimes , Hao Peng , Philip S. Yu

* This paper is accepted by the Findings of NAACL 2022 

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PyGOD: A Python Library for Graph Outlier Detection



Kay Liu , Yingtong Dou , Yue Zhao , Xueying Ding , Xiyang Hu , Ruitong Zhang , Kaize Ding , Canyu Chen , Hao Peng , Kai Shu , George H. Chen , Zhihao Jia , Philip S. Yu


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Multifaceted Improvements for Conversational Open-Domain Question Answering



Tingting Liang , Yixuan Jiang , Congying Xia , Ziqiang Zhao , Yuyu Yin , Philip S. Yu


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