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Deep NetworksVittal Premachandran
Supervised Learning y=f(x)● Binary Classification:
○ Given x find y ∊ {-1, 1}● Multiclass Classification
○ Given x find y ∊ {1,...,k}● Regression
○ Given x find y ∊ R (or, Rd)
SIFT
SIFT
HOG
SIFT
HOG
LBP
SIFT
HOG
LBP
SURF
SIFT
HOG
LBP
SURF MSER
SIFT
HOG
LBP
SURF MSERTextons
SIFT
HOG
LBP
SURF MSERTextons
GLOH
SIFT
HOG
LBP
SURF MSERTextons
GLOH
Color-SIFT
SIFT
HOG
LBP
SURF MSERTextons
GLOH
Color-SIFT
SPIN
SIFT
HOG
LBP
SURF MSERTextons
GLOH
Color-SIFT
SPIN
PHOG
SIFT
HOG
LBP
SURF MSERTextons
GLOH
Color-SIFT
SPIN
PHOG
...
W T F
Which
Training
Features to use?
Can we learn the features (internal representations)?
Convolutional Neural Networks
Alex Net
Krizhevsky et al. NIPS 2012
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