Yulin Zhang Jian Zhuang Sunan Wang Xiaohu Li Local Linear Embedding in Dimensionality Reduction Based on Small World Principle. 394-398 2008 CSSE (4) http://dx.doi.org/10.1109/CSSE.2008.723 conf/csse/2008-4 db/conf/csse/csse2008-4.html#ZhangZWL08