Course 2 Week 2 Assignment Viterbi Backward - 3 Tests passed 1 Test failed

Course Q&A Natural Language Processing NLP with Probabilistic Models
22

Hi @Mubsi,

I am also facing a similar issue in the assignment (3 tests passed and 1 failed).
Could you please take a look at my notebook?
NotebookID: zhiceqys

Thanks

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23

Hi @Mubsi,

I am also facing a similar issue in the assignment (3 tests passed and 1 failed).
Could you please take a look at my notebook?
NotebookID: vzgncccq

Thank you in advance!

1 Like
24

I’ve found a mistake. Thanks anyway!

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25

Hi @Mubsi, I have a similar issue. Would you please have a look? My lab code is wchaewtu. Thanks in advance!

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26

Hi @Mubsi,

Any updates?

I have been able to complete rest of the course but getting partial marks only for this assignment.

Thanks in advance!

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27

hi @Mubsi ,
Incidentally I have a similar issue, I tried truncating and shifting the range in my for loop to see if I was wrong there, turns out it still doesn’t change the error and only the last character is the error in test cases.

image
image821×176 21 KB

Can you please help me my Lab ID is - uhztzlwv

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28

Hi @JohnnyBoy00,

In Ex 7 your parameters for the Step 2's for loop are incorrect.

Cheers,
Mubsi

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29

Hi @Surya_Yadav,

Your notebook ran fine. Were you able to fix your mistake ?

Cheers,
Mubsi

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30

Hi @Vicky_Lu,

In Ex 7, your variables, best_prob_for_last_word and z[m - 1] were incorrect.

Best,
Mubsi

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31

Hi @pruthvi_reddy,

Try running your notebook now.

Best,
Mubsi

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32

Hi @Mubsi

Thanks for the reply.

Yes, I was able to fix the mistake in one of the loops and notebook ran without any issues.

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33

Hi,

As a general suggestion to anyone struggling with the viterbi_backward function:

Try to write your own pseudo-code for the function first, so that you have a good understanding of the logic before you start doing the actual coding. This can decrease the number of bugs significantly. Also, you cannot post your actual code here, but you can discuss your pseudo-code.

Hope this helps.

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34

Hello @Mubsi, sorry same error here. I do not know why.

my ID is fepmgwve

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35

Hi @oscar-defelice,

My apologise for replying this late. I was on a vacation. But I’m back now. Is this something you still need help me ? Let me know.

Thanks,
Mubsi

1 Like
36

Hello,
@mubsi. Thank you very much for your reply. Actually I have done!

Thanks a lot

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37

Hello @Mubsi ,

I am having the same issue as others. My test for Q7 is failing the same way.

image

Could you please assist me? My Lab ID is - utatqkcr

Thank You

1 Like
38

Hi @markwclements,

Your for loop ranges were incorrect, as well as the indexes you were using for some of states initialisations. You can see more in your notebook.

One very import thing, I noticed you had added extra code in the notebook. Keep in mind to remove anything extra you have added, like code cells, print statements, more code than what is required, before you submit it for grading. Otherwise, you’ll see grader related errors.

Cheerz,
Mubsi

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39

Thank you for your help!

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40

Hi @Mubsi I having same trouble of 3tests passed and 1 failed. Please help
My id is ncdblumn

I have found out the problem and solved it. Thank you for help.

1 Like
41

Hello,

I’m also having issues with the backward pass step and getting 3 tests passing with 1 failing. I tried to make modifications to the for loop but nothing seems to be working. Could anyone point me in the right direction?

1 Like