Order the faces: The following dataset contains 33 faces of the same person (Y 2 R1129233) in dierent angles, https://yao-lab

 Order the faces: The following dataset contains 33 faces of the same person (Y 2 R1129233) in dierent angles, https://yao-lab.github.io/data/face.mat You may create a data matrix X 2 Rnp where n = 33; p = 112 92 = 10304 (e.g. X=reshape(Y,[10304,33])'; in matlab). (a) Explore the MDS-embedding of the 33 faces on top two eigenvectors: order the faces according to the top 1st eigenvector and visualize your results with gures. (b) Explore the ISOMAP-embedding of the 33 faces on the k = 5 nearest neighbor graph and compare it against the MDS results. NOTE : Need answer to question 1 only.