Artificial Neural Network Lect4 : Single Layer Perceptron Classifiers
Multi Layer Perceptron & Back Propagation
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Transcript of Multi Layer Perceptron & Back Propagation
Multi Layer PerceptronComputer & Robot Vision Lab
Sung -ju Kim [email protected]
Content
• Why Neural Net came back?
• Single Layer Perceptron
• Multi Layer Perceptron
• Traffic Sign Lane Guessing
Why Neural Net Came back?
Stallkamp, Johannes, et al. "Man vs. computer: Benchmarking machine learning algorithms for traffic sign recognition." Neural networks 32 (2012): 323-332.
Face net: 99.6% Deep Face : 97.25%
Activation Functionsstep function sign function identity function
sigmoid function hyper tangent function
How to Learn Perceptron?Delta Learning Rule
E
(weight)
new weightcurrent weightlearning rateError Function