Publications

Towards Update-Dependent Analysis of Query Maintenance

Published in ACM Symposium on Principles of Database Systems (PODS), 2026

Qichen Wang.

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Size Bound-Adorned Datalog

Published in ACM Symposium on Principles of Database Systems (PODS), 2026

Christian Fattebert, Zhekai Jiang, Christoph Koch, Reinhard Pichler, Qichen Wang. **

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Yannakakis+: Practical Acyclic Query Evaluation with Theoretical Guarantees

Published in ACM SIGMOD International Conference on Management of Data (SIGMOD), 2025

Qichen Wang, Bingnan Chen, Binyang Dai, Ke Yi, Feifei Li and Liang Lin

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Towards Update-Dependent Analysis of Query Maintenance

Published in ACM Symposium on Principles of Database Systems (PODS), 2025

Xiao Hu and Qichen Wang.

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Effective Clustering on Large Attributed Bipartite Graphs.

Published in ACM SIGKDD Conference on Knowledge Discovery and Data Mining (SIGKDD.), 2024

Renchi Yang, Yidu Wu, Xiaoyang Lin, Qichen Wang, Tsz Nam Chan, Jieming Shi.

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Relational Algorithms for Top-k Query Evaluation.

Published in ACM SIGMOD International Conference on Management of Data (SIGMOD), 2024

Qichen Wang, Qiyao Luo and Yilei Wang.

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FedKNN: Secure Federated k-Nearest Neighbor Search.

Published in ACM SIGMOD International Conference on Management of Data (SIGMOD), 2024

Xinyi Zhang, Qichen Wang, Cheng Xu, Yun Peng, and Jianliang Xu.

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Change Propagation Without Joins.

Published in International Conference on Very Large Data Bases (VLDB), 2023

Qichen Wang, Xiao Hu, Binyang Dai and Ke Yi.

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Computing the Difference of Conjunctive Queries Efficiently.

Published in ACM SIGMOD International Conference on Management of Data (SIGMOD), 2023

Xiao Hu and Qichen Wang.

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Conjunctive Queries with Comparisons.

Published in ACM SIGMOD International Conference on Management of Data (SIGMOD), 2022

Qichen Wang and Ke Yi.

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Maintaining Acyclic Foreign-Key Joins Under Updates.

Published in ACM SIGMOD International Conference on Management of Data (SIGMOD), 2020

Qichen Wang and Ke Yi.

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Efficient Computation of a Near-Maximum Independent Set over Evolving Graphs.

Published in IEEE International Conference on Data Engineering (ICDE)., 2018

Weiguo Zheng, Qichen Wang, Jeffrey Xu Yu, Hong Cheng, and Lei Zou.

SparkSQL+: Next-generation Query Planning over Spark.

Published in ACM SIGMOD International Conference on Management of Data (SIGMOD), 2023

Binyang Dai, Qichen Wang, and Ke Yi.

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Query running too slow? Rewrite it with Quorion!

Published in International Conference on Very Large Data Bases (VLDB), 2021

Bingnan Chen, Binyang Dai,Qichen Wang, Ke Yi.

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Cquirrel: Continuous Query Processing over Acyclic Relational Schemas.

Published in International Conference on Very Large Data Bases (VLDB), 2021

Qichen Wang, Chaoqi Zhang, Danish Alsayed, Ke Yi, Bin Wu, Feifei Li, and Chaoqun Zhan.

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Conjunctive Queries with Comparisons.

Published in ACM Transactions on Database Systems (TODS), 2025

Qichen Wang and Ke Yi.

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Conjunctive Queries with Comparisons. [extended abstract]

Published in SIGMOD Record, 2023

Qichen Wang and Ke Yi.

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