[Stanford]Machine Learning Week #3 作业讨论帖

[Stanford]Machine Learning Week #2 作业讨论帖
求加分

已发过贴：http://www.1point3acres.com/bbs/thread-82306-1-1.html

  VI. Logistic Regression (Week 3)
(expanded, click to collapse)
Completed
VI. Logistic Regression Help

Attempt Review Question
Due Date         Sun 20 Jul 2014 11:59 PM PDT
If you submit after the due date (but before the hard deadline), your submission score will be penalized 20%.

Hard Deadline         Sun 14 Sep 2014 11:59 PM PDT
If you submit any time after the hard deadline, you will not receive credit.

Effective Score        4.00 / 5.00
Explanation: 4.00 = 4.00 (Score for attempt 1) * 100% (No penalties)
Each time that you attempt it, we'll record a score based on your performance and any penalties due to late submissions. Your effective score will be the highest score of all the allowed attempts made before the hard deadline.

# of Attempts        1 / 100
Last Attempted        Wed 9 Jul 2014 12:31 AM PDT
Last Attempted Score        4.00 / 5.00Show Previous Attempts
  VII. Regularization (Week 3)
(expanded, click to collapse)
Completed
VII. Regularization Help

Attempt Review Question
Due Date         Sun 20 Jul 2014 11:59 PM PDT
If you submit after the due date (but before the hard deadline), your submission score will be penalized 20%.

Hard Deadline         Sun 14 Sep 2014 11:59 PM PDT
If you submit any time after the hard deadline, you will not receive credit.

Effective Score        4.75 / 5.00
Explanation: 4.75 = 4.75 (Score for attempt 1) * 100% (No penalties)
Each time that you attempt it, we'll record a score based on your performance and any penalties due to late submissions. Your effective score will be the highest score of all the allowed attempts made before the hard deadline.

# of Attempts        1 / 100
Last Attempted        Wed 9 Jul 2014 12:00 AM PDT
Last Attempted Score        4.75 / 5.00Show Previous Attempts

Logistic Regression Help

View Instructions
Due Date         Sun 20 Jul 2014 11:59 PM PDT
If you submit after the due date (but before the hard deadline), your submission score will be penalized 20%.

Hard Deadline         Sun 14 Sep 2014 11:59 PM PDT
If you submit any time after the hard deadline, you will not receive credit.

Part        Name        Last Submission        Score        Feedback       
1 / 6        Sigmoid Function        Tue 8 Jul 2014 11:10 PM PDT         5.00 / 5        View       
2 / 6        Compute cost for logistic regression        Tue 8 Jul 2014 11:34 PM PDT         30.00 / 30        View       
3 / 6        Gradient for logistic regression        Tue 8 Jul 2014 11:28 PM PDT         30.00 / 30        View       
4 / 6        Predict Function        Tue 8 Jul 2014 11:45 PM PDT         5.00 / 5        View       
5 / 6        Compute cost for regularized LR        Tue 8 Jul 2014 11:55 PM PDT         15.00 / 15        View       
6 / 6        Gradient for regularized LR        Tue 8 Jul 2014 11:55 PM PDT         15.00 / 15        View       
Total Score        100 / 100