· Invited talk, “MindFinder: Sketch-based Search, Recognition, and Parsing,” Idiap Research Institute, Martigny, Switzerland, 11/2012.
· Invited talk, “Edgel Index for Sketch-based Search, Recognition, and Parsing,” Tsinghua University, Beijing, China, 06/2012.
· Invited talk, “Sketch-based Image Search: Technologies, Applications, and Challenges,” University of Science and Technology of China, Hefei, China, 05/2012.
· Invited talk, “MindFinder: Finding Images by Sketching,” Shanghai Jiao Tong University, Beijing, China, 04/2011.
· Invited talk, “Several works on Web Image Search,” School of Computing, National University of Singapore, Singapore, 06/2008.
· Invited talk, “Several works on Web Image Search,” Tsinghua University, Beijing, China, 12/2007.
