1. Kouropteva, O., Okun, O., et al.: Incremental Locally Linear Embedding Algorithm. J. Pattern Recognition 38(10), 1764–1767 (2005)
2. Zheng, J.: One Improved LLE Method. J. Journal of Hunan Institute of Science and Technolohy 20, 30–32 (2007)
3. Roweis, S.T., Saul, L.K.: Nonlinear Dimensionality Reduction by Locally Liner Embedding. Science 290(5500), 2323–2326 (2000)
4. An introduction to locally linear embedding,
http://www.cl.cam.ac.uk/Research/DTG/attar2chive:pub/data/att_faces.zip.
5. Ridder, K., Okun, O., et al.: Supervised Locally Linear Embedding. J. Artificial Neural Networks and Neural Information Processing 2714, 333–341 (2003)