Chih-Hung Liu
Department of Electrical Engineering
National Taiwan University
chliu@ntu.edu.tw
Education
- Habilitation in Computer Science, Karlsruhe Institute of Technology, 2020
- Ph.D. in Electronics Engineering, National Taiwan University, 2009
- Bachelor in Computer Science, National Taiwan University, 2005
Working Experience
- Associate Professor, Department of Electrical Engineering, National Taiwan University (08/2022 — present)
- Senior Researcher (Oberasistent), Department of Computer Science, ETH Zurich (07/2016 — 06/2022)
- Postdoc, Department of Computer Science, University of Bonn (08/2012 — 06/2016)
- Postdoc, Department of Computer Science, Karlsruhe Institute of Technology (05/2011 — 05/2012)
- Postdoc, Research Center for Information Technology Innovation, Academia Sinica (07/2010 — 2011/05 & 05/2012 — 2012/07)
Honors
- Yushan Young Fellow Program, Ministry of Education, Taiwan
- Humboldt Research Fellowship for postdocs, Alexander von Humboldt Foundation, Germany
Research Interests
- Algorithmic Aspects of Data Science
- Randomized Algorithms
- Computational Geometry
Selected Publications
Journals
- Nearly optimal planar k nearest neighbors queries under general distance functions. SIAM Journal on Computing, vol. 51, no. 3, pp. 723-765, 2022. (single author)
- Approximate minimum selection with unreliable comparisons. Algorithmica, vol. 84, no. 1, pp. 60-84, 2022. (joint work with Stefano Leucci)
- A nearly optimal algorithm for the geodesic Voronoi diagram in a simple polygon. Algorithmica, vol. 82, no. 4, pp. 915-937, 2020. (single author)
- An efficient randomized algorithm for higher-order abstract Voronoi diagrams. Algorithmica, vol. 81, no. 6, pp. 2317-2345, 2019. (joint work with Cecilia Bohler and Rolf Klein)
- Minimizing the diameter of a spanning tree for imprecise points. Algorithmica, vol. 80, no. 2, pp. 801-826, 2018. (joint work with Sandro Montanari)
- The k-nearest-neighbor Voronoi diagram revisited. Algorithmica, vol. 71, no. 2, pp. 429-449, 2015. (joint work with D. T. Lee and Evanthia Papadopoulou)
Conference
- Private graphon estimation via sum-of-squares. The 56th ACM Symposium on Theory of Computing (STOC 2024), 2024. (joint work with Hongjie Chen, Jingqiu Ding, Tommaso d'Orsi, Yiding Hua and David Steurer)
- Fast algorithm for overcomplete order-3 tensor decomposition. The 35th Annual Conference on Learning Theory (COLT 2022), 2022. (joint work with Jingqiu Ding, Tommaso d'Orsi, David Steurer and Stefan Tiegel)
- Nearly Optimal planar k nearest neighbors queries under general distance functions . The 31st Annual ACM-SIAM Symposium on Discrete Algorithms (SODA 2020), 2020. (single author)
- A nearly optimal algorithm for the geodesic Voronoi diagram of points in a simple polygon . The 34th International Symposium on Computational Geometry (SoCG 2018), 2018. (single author)
- An efficient randomized algorithm for higher-order abstract Voronoi dsiagrams.. The 32nd International Symposium on Computational Geometry (SoCG 2016), 2016. (joint work with Cecilia Bohler and Rolf Klein)
- Higher-order geodesic Voronoi diagrams in a polygonal domain with holes.. The 24nd Annual ACM-SIAM Symposium on Discrete Algorithms (SODA 2013), 2013. (joint work with D. T. Lee)