Weds., Feb. 13, 2002

• New room next time: 24-121

nownext time

MIT holiday schedule

• No classes on Monday, Feb. 18.• Monday’s classes will be held Tuesday.• So next week, we meet

– Tuesday, Feb. 19– Wednesday, Feb. 20

I want to learn names

• Please write your first name in felt or thick pen, so the camera can see it.

• If you really don’t want to be photographed, that’s fine.

“Manifold learning week”

To request a paper…

• To sign-up to do the computer or presentation part of a favorite paper:– Send me an e-mail.

• I’ll also announce to the class when we need people to volunteer.

Other ways to find parts…

• Look for regions that form parts perceptually, e.g., D.D. Hoffman and W. Richards, “Parts of recognition”, Cognition, 18:65-96, 1985.

Other ways to find parts…

Why you don’t want to force the representation to learn how to

translate your data.

Eigenfaces Photobook (MIT)

Eigenfaces Turk & Pentland (1992) [Note some of the low-frequency

modes are face translation derivatives.—wtf]

FERET Photobook Moghaddam & Pentland (1995)

Eigenfaces Moghaddam & Pentland (1995)

Normalized Eigenfaces [Note: sharper]