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Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro to Machine Learning – Recitation
Transcript
Page 1: Week 7 - University of Pittsburghpeople.cs.pitt.edu/~jlee/teaching/cs1675/cs1675_week7.pdf · Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro

Week7JeongminLee

ComputerScienceDepartmentUniversityofPittsburgh

CS1675IntrotoMachineLearning– Recitation

Page 2: Week 7 - University of Pittsburghpeople.cs.pitt.edu/~jlee/teaching/cs1675/cs1675_week7.pdf · Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro

Homework4

• Averagescore:88.17(std:19.42)•Median:97.00• Theproblemthatmanystudenthadmistake• OnlineGradientDescent(Part3)

Page 3: Week 7 - University of Pittsburghpeople.cs.pitt.edu/~jlee/teaching/cs1675/cs1675_week7.pdf · Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro

GradientDescent

Page 4: Week 7 - University of Pittsburghpeople.cs.pitt.edu/~jlee/teaching/cs1675/cs1675_week7.pdf · Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro

OnlineGradientDescent

Page 5: Week 7 - University of Pittsburghpeople.cs.pitt.edu/~jlee/teaching/cs1675/cs1675_week7.pdf · Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro

Algorithm

Page 6: Week 7 - University of Pittsburghpeople.cs.pitt.edu/~jlee/teaching/cs1675/cs1675_week7.pdf · Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro

CodeImplementation(DataLoading)

Page 7: Week 7 - University of Pittsburghpeople.cs.pitt.edu/~jlee/teaching/cs1675/cs1675_week7.pdf · Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro

WeightUpdate

ProgressUpdate

Page 8: Week 7 - University of Pittsburghpeople.cs.pitt.edu/~jlee/teaching/cs1675/cs1675_week7.pdf · Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro

CodeImplementation(WeightUpdate)

Page 9: Week 7 - University of Pittsburghpeople.cs.pitt.edu/~jlee/teaching/cs1675/cs1675_week7.pdf · Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro

CodeImplementation(ProgressUpdate)

Page 10: Week 7 - University of Pittsburghpeople.cs.pitt.edu/~jlee/teaching/cs1675/cs1675_week7.pdf · Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro

CodeImplementation(LRPredict)

Page 11: Week 7 - University of Pittsburghpeople.cs.pitt.edu/~jlee/teaching/cs1675/cs1675_week7.pdf · Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro

Resultplot

Page 12: Week 7 - University of Pittsburghpeople.cs.pitt.edu/~jlee/teaching/cs1675/cs1675_week7.pdf · Week 7 Jeongmin Lee Computer Science Department University of Pittsburgh CS 1675 Intro

Thanks!-

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