Annotating Phonetic Component of Chinese Characters Using Constrained Optimization and Pronunciation Distribution. - Chia-Hui Chang; Shu-Yen Lin; Shu-Ying Li; Meng-Feng Tsai; Shu-Ping Li; Hsiang-Mei Liao; Chih-Wen Sun; Norden E. Huang (Int. J. Comput. Linguistics Chin. Lang. Process., 2010)