Letters: Comment on "Facial expression recognition based on two-dimensional discriminant locality preserving projections" [Neurocomputing 71 (2008) 1730-1734]

Authors:
Zilan Hu
Affiliations:
School of Mathematics and Physics, Anhui University of Technology, Maanshan, Anhui 243002, PR China
Venue:
Neurocomputing
Year:
2009

Citing 7
Cited 0

Rapid and brief communication: Two-dimensional locality preserving projections (2DLPP) with its application to palmprint recognition

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2D-LPP: A two-dimensional extension of locality preserving projections

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Discriminant Locality Preserving Projections: A New Method to Face Representation and Recognition

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Discussion: Comment on: "Two-dimensional locality preserving projections (2DLPP) with its application to palmprint recognition"

Pattern Recognition
Reply: Comment on "two-dimensional locality preserving projections (2DLPP) with its application to palmprint recognition"

Pattern Recognition
Letters: Facial expression recognition based on two-dimensional discriminant locality preserving projections

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Palmprint recognition with improved two-dimensional locality preserving projections

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Abstract

In this note, we show that the mathematical formulation of the two-dimensional discriminant locality preserving projections (2D-DLPP) proposed in the paper [R. Zhi, Q. Ruan, Facial expression recognition based on two-dimensional discriminant locality preserving projections, Neurocomputing 71 (2008) 1730-1734] is not very sound. The rigorous version is thus given. We also point out that 2D-DLPP can be viewed from the perspective of the discriminant locality preserving projections (DLPP).