1. BlinkDB
2. DeepDB
3. Flying KIWI
4. Sungsoo Kim, Taewhi Lee, Moonyoung Chung, and Jongho Won. 2016. Sweet KIWI: Statistics-Driven OLAP Acceleration using Query Column Sets. In Proceedings of the 19th International Conference on Extending Database Technology, EDBT 2016, Bordeaux, France, March 15--16, 2016. OpenProceedings.org, 680--681.
5. Taewhi Lee, Kihyuk Nam, Choon Seo Park, and Sungsoo Kim. 2022. Exploiting Machine Learning Models for Approximate Query Processing. In IEEE International Conference on Big Data, Big Data 2022, 2022. IEEE, 6752--6754.