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Bounding the Last Mile: Efficient Learned String Indexing


Nov 29, 2021
Benjamin Spector, Andreas Kipf, Kapil Vaidya, Chi Wang, Umar Farooq Minhas, Tim Kraska

* 3rd International Workshop on Applied AI for Database Systems and Applications (AIDB'21), August 20, 2021, Copenhagen, Denmark 

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Fair AutoML


Nov 11, 2021
Qingyun Wu, Chi Wang

* 14 pages (including 2 pages of appendix), 8 figures 

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Geometry Attention Transformer with Position-aware LSTMs for Image Captioning


Oct 01, 2021
Chi Wang, Yulin Shen, Luping Ji

* To be submitted 

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An Empirical Study on Hyperparameter Optimization for Fine-Tuning Pre-trained Language Models


Jun 17, 2021
Xueqing Liu, Chi Wang

* To appear in ACL-IJCNLP 2021 

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ChaCha for Online AutoML


Jun 11, 2021
Qingyun Wu, Chi Wang, John Langford, Paul Mineiro, Marco Rossi

* ICML 2021 
* 16 pages (including supplementary appendix). Appearing at ICML 2021 

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Attention-guided Temporal Coherent Video Object Matting


May 24, 2021
Yunke Zhang, Chi Wang, Miaomiao Cui, Peiran Ren, Xuansong Xie, Xian-sheng Hua, Hujun Bao, Qixing Huang, Weiwei Xu

* 10 pages, 6 figures 

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Active Boundary Loss for Semantic Segmentation


Feb 04, 2021
Chi Wang, Yunke Zhang, Miaomiao Cui, Jinlin Liu, Peiran Ren, Yin Yang, Xuansong Xie, XianSheng Hua, Hujun Bao, Weiwei Xu

* 8 pages, 7 figures 

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Concentration Bounds for Co-occurrence Matrices of Markov Chains


Aug 06, 2020
Jiezhong Qiu, Chi Wang, Ben Liao, Richard Peng, Jie Tang


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Faster Graph Embeddings via Coarsening


Jul 06, 2020
Matthew Fahrbach, Gramoz Goranci, Richard Peng, Sushant Sachdeva, Chi Wang

* Proceedings of the 37th International Conference on Machine Learning (ICML 2020) 
* 18 pages, 2 figures 

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Cost Effective Optimization for Cost-related Hyperparameters


May 27, 2020
Qingyun Wu, Chi Wang, Silu Huang

* 28 pages (including supplementary appendix) 

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Qd-tree: Learning Data Layouts for Big Data Analytics


Apr 22, 2020
Zongheng Yang, Badrish Chandramouli, Chi Wang, Johannes Gehrke, Yinan Li, Umar Farooq Minhas, Per-Åke Larson, Donald Kossmann, Rajeev Acharya

* ACM SIGMOD 2020 

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TaxoExpan: Self-supervised Taxonomy Expansion with Position-Enhanced Graph Neural Network


Jan 26, 2020
Jiaming Shen, Zhihong Shen, Chenyan Xiong, Chi Wang, Kuansan Wang, Jiawei Han

* WWW 2020 

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FLO: Fast and Lightweight Hyperparameter Optimization for AutoML


Nov 12, 2019
Chi Wang, Qingyun Wu


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NetSMF: Large-Scale Network Embedding as Sparse Matrix Factorization


Jun 26, 2019
Jiezhong Qiu, Yuxiao Dong, Hao Ma, Jian Li, Chi Wang, Kuansan Wang, Jie Tang

* 11 pages, in Proceedings of the Web Conference 2019 (WWW 19) 

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ALEX: An Updatable Adaptive Learned Index


May 21, 2019
Jialin Ding, Umar Farooq Minhas, Hantian Zhang, Yinan Li, Chi Wang, Badrish Chandramouli, Johannes Gehrke, Donald Kossmann, David Lomet


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Efficient Identification of Approximate Best Configuration of Training in Large Datasets


Nov 08, 2018
Silu Huang, Chi Wang, Bolin Ding, Surajit Chaudhuri

* Full version of an AAAI 2019 conference paper 

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Scalable Topical Phrase Mining from Text Corpora


Nov 19, 2014
Ahmed El-Kishky, Yanglei Song, Chi Wang, Clare Voss, Jiawei Han

* Proceedings of the VLDB Endowment, Vol. 8(3), pp. 305 - 316, 2014 

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Scalable and Robust Construction of Topical Hierarchies


Mar 13, 2014
Chi Wang, Xueqing Liu, Yanglei Song, Jiawei Han


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KERT: Automatic Extraction and Ranking of Topical Keyphrases from Content-Representative Document Titles


Jun 03, 2013
Marina Danilevsky, Chi Wang, Nihit Desai, Jingyi Guo, Jiawei Han

* 9 pages 

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