DEEP L Course 2 week 2

Course Q&A Deep Learning Specialization Improving Deep Neural Networks: Hyperparameter tun
1

Hello everyone,
something isn’t working in the second course of the deep learning specialization (week 2) exercise 4.
not all tests passed, and the re is an error like:

W1 = 
[[ 1.62434536 -0.61175641 -0.52817175]
 [-1.07296862  0.86540763 -2.3015387 ]]
b1 = 
[[ 1.74481176]
 [-0.7612069 ]]
W2 = 
[[ 0.3190391  -0.24937038  1.46210794]
 [-2.06014071 -0.3224172  -0.38405435]
 [ 1.13376944 -1.09989127 -0.17242821]]
b2 = 
[[-0.87785842]
 [ 0.04221375]
 [ 0.58281521]]
v["dW1"] = 
[[0. 0. 0.]
 [0. 0. 0.]]
v["db1"] = 
[[0.]
 [0.]]
v["dW2"] = 
[[0. 0. 0.]
 [0. 0. 0.]
 [0. 0. 0.]]
v["db2"] = v[[0.]
 [0.]
 [0.]]
 2  Tests passed
 1  Tests failed

AssertionError                            Traceback (most recent call last)
<ipython-input-41-f37bbbdbd581> in <module>
     11 print("v[\"db2\"] = v" + str(v["db2"]))
     12 
---> 13 update_parameters_with_momentum_test(update_parameters_with_momentum)

~/work/release/W2A1/public_tests.py in update_parameters_with_momentum_test(target)
    155     ]
    156 
--> 157     multiple_test(test_cases, target)
    158 
    159 def initialize_adam_test(target):

/opt/conda/lib/python3.7/site-packages/dlai_tools/testing_utils.py in multiple_test(test_cases, target)
    162         print('\033[91m', len(test_cases) - success, " Tests failed")
    163         raise AssertionError(
--> 164             "Not all tests were passed for {}. Check your equations and avoid using global variables inside the function.".format(target.__name__))

AssertionError: Not all tests were passed for update_parameters_with_momentum. Check your equations and avoid using global variables inside the function.

thank you

2

Hi,

I have moved this post to the DLS Course 2 category as mentors of the 2nd course might help you out here with this query.

Make sure if you have any course-specific doubts, explore the specialization category and post in the relevant course subcategory as course-specific mentors are actively answering the queries there and the threads in the general discussion might not come on their radar and remain unanswered at times.

1 Like
3

It seems Coursera website shut down.
there is a general error

4

Hi,
It seems there is a general sitewide outage on coursera affecting everyone. You can check the coursera community center for further updates as its platform wide issue.