LPP
X. He, P. Niyogi, "Locality Preserving Projections", NIPS 2003, 2003.
DLPP
G. Feng, D. Hu, Z. Zhou, “A Direct Locality Preserving Projections (DLPP) Algorithm for Image Recognition”, Neural Processing Letters, Volume 27, Issue 3, pages 247–255, 2008.
Orthogonal LPP (OLPP)
S.Yen, C. Wu, H. Wang, “A Block-Based Orthogonal Locality Preserving Projection Method for Face Super-Resolution”, Asian Conference on Intelligent Information and Database System, ACIIDS 2012, pages 253-262, 2012.
Generalized Orthogonal LPP (GOLPP)
J. Shao, G. Rong, J. Lee, “Generalized orthogonal locality preserving projections for nonlinear fault detection and diagnosis”, Chemometrics and Intelligent Laboratory Systems, Volume 96, Issue 1, pages 75-83, March 2009.
Graph-optimized LPP (GoLPP)
L. Zhang, L. Qiao, S. Chen, “Graph-optimized locality preserving projections”, Pattern Recognition, Volume 43, Issue 6, pages 1993-2002, June 2010.
Supervised Optimal LPP (SOLPP)
W.Wong, H. Zhao, "Supervised optimal locality preserving projection", Pattern Recognition, Volume 45, Issue 1, pages 186-197, January 2012.
Normalized Laplacian SOLPP (NL-SLOPP)
W.Wong, H. Zhao, "Supervised optimal locality preserving projection", Pattern Recognition, Volume 45, Issue 1, pages 186-197, January 2012.
Robust LPP (RLPP)
H. Wang, F. Nie, H. Huang, "Learning robust locality preserving projection via p-order minimization", AAAI Conference on Artificial Intelligence, pages 3059–3065, 2015.
Modified LPP (MLPP)
Y. Zhai, L. Zhang, N. Wang , Y. Guo, Y. Cen, T. Wu, Q. Tong "A Modified Locality-Preserving Projection Approach for Hyperspectral Image Classification", IEEE Geoscience and Remote Sensing Letters, pages 1059-1063, 2016.
Improved LPP (ILPP)
J. Xiong, S. Ding, B. Li, “An Improved Locality Preserving Projection Method for Dimensionality Reduction with Hyperspectral Image”, International Conference on Swarm Intelligence, ICSI 2017, pages 321-329, 2017.
Fast and Orthogonal LPP (FOLPP)
R. Wang, F. Nie, R. Hong, X. Chang, X. Yang, W. Yu, "Fast and Orthogonal Locality Preserving Projections for Dimensionality Reduction", IEEE Transactions on Image Processing, Volume 26, No. 10, pages 5019-5030, 2017.
GLPP
B. Wang, Y. Hu, J. Gao, Y. Sun, H. Chen, M. Ali, B. Yin, “Locality Preserving Projections for Grassmann Manifold”, International Joint Conference on Artificial Intelligence, IJCAI 2017, 2017.