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534 results found

  1. I think there's a mistake in Python for Data Science course

    I think there's a mistake in Python for Data Science course in Sets /part of the second Module/ it states "...we use the ampersand to find the UNION of two sets." which IMHO is incorrect as ampersand is the sign for logical operation AND, which, applied to sets is equivalent of INTERSECTION /as it's correctly stated in the previous sentence/.

    2 votes

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  2. My Courses Tab

    I think it will be a great idea to have a separate "My Courses" tab on the menu, or profile pull down menu. Because, it's confusing and unease for us to find our link to enrolled classes. It also great idea to separate the menu in the My Courses tab menu with In Progress and Completed

    1 vote

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  3. I am taking the class about programming chatbots with watson services at edX, unfortunately there is no technical support in the course.

    1 vote

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  4. Teach before testing

    Data Science Methodology > Module 4 review question #2
    You didn't list the answer anywhere I could find in the material provided. Yes, I googled the answer (and hastily marked the wrong one), but is that the point?

    1 vote

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  5. Fix exam wrong answer in DA0101EN

    Question 20 asks what you should do if a model gives R^2 = 1 on train set and R^2 = 0 on validation data. There are 3 options, I tried to answer with 2 submissions and the obviously wrong answer (model works fine on test data so it has no issues) is the only remaining option.

    Please fix this as some people could feasibly need this one question to pass the course.

    4 votes

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    6 comments  ·  Admin →
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  6. Re-attempt on courses

    Hello,

    I see currently there is no way to re-attempt faild courses. it would be great if you add re-attempt like after 1 week or month. Maybe with different questions if possible.

    Thank you.

    Best Regards
    Mubashar

    13 votes

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  7. to add a small feature in the graded review questions

    There must be a check in the system so that empty answers are not submitted by the users by mistake that will cost their grades and lower their marks and reduce their chances to pass the course with flying colors.

    1 vote

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  8. To the review questions in module 3

    I found that the questions included in the module 3 are not in accordance with it.
    Found that these questions are not covered by what's discussed in the module.
    No sure if this is designed purposely.
    They resemble more to the topics covered in the module 4

    1 vote

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  9. Download Slides

    I see that video and transcript download is available, but I think it would also be useful to provide slides as it is easier to reference material from slides while working on labs.

    11 votes

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  10. `from sklearn.cross_validation import train_test_split` deprecated

    from sklearn.cross_validation import train_test_split is deprecated,

    it should be:

    from sklearn.model_selection import train_test_split

    2 votes

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    0 comments  ·  Hands on Labs  ·  Admin →
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  11. increase the video description

    1 vote

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  12. i didnt not recieved my deep learning badge till now

    i didnt not recieved my deep learning badge till now even i completed all three courses in deep learning and got certificates but didnt got badge provide me my badge

    4 votes

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  13. There should be an option to retake the exam .

    There should be an option to retake the exam . Questions can be changed if we take the exam the second time .

    7 votes

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  14. Adding next or previous buttons for videos ..will be easy and quick navigation

    I suggest to think about to add "Next" and "Previous" buttons in videos , As it will be helpful in easy and quick navigation through the course.

    Thanks

    2 votes

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  15. Service Graph has been deprecated and replaced by Kiali

    View guestbook telemetry data -> Service Graph
    Establish port forwarding from local port 8088 to the Service Graph instance:
    kubectl -n istio-system port-forward $(kubectl -n istio-system get pod -l app=servicegraph -o jsonpath='{.items[0].metadata.name}') 8088:8088
    error: error executing jsonpath "{.items[0].metadata.name}": array index out of bounds: index 0, length 0
    Error from server (NotFound): pods "Error executing template: array index out of bounds: index 0, length 0. Printing more information for debugging the template:" not found

    As you can see above, istio-1.1.0-rc.5 does not even have Service Graph included. Please update course material.

    2 votes

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  16. PY0101EN Module 5 Last Review Question Correction

    Matrix multiplication in numpy is performed with A.dot(B)

    np.dot(A, B) returns the dot product

    1 vote

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  17. Thanks a ton for the tutorial DA0101EN

    I had no way of showing my gratitude for the wonderful course on your site that's why I am posting it here. I took your course DA0101EN and am immensely grateful to you.

    Thanks and Regards
    Ashish Shukla

    1 vote

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  18. Drop videos - Go with Comprehensive slides

    Instead of showing videos show comprehensive slides in with as many examples as possible to make the course walkthrough much quicker and easier.

    1 vote

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  19. Hire some one with UX skills to review your CHECK/FINAL CHECK UI

    It's really not clear what CHECK & FINAL CHECK do or the impact is of pressing them or why some Qs get to be SAVED and others don't. Get some usability testing.

    Don't get me wrong, I can take a reasonable guess at their affordance but it's far from clear and unambiguous, so would benefit from a user experience professional (NOT the guy who wrote the code) running some user tests

    2 votes

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  20. need to correct

    https://courses.cognitiveclass.ai/courses/course-v1:Cognitiveclass+PY0101EN+v2/courseware/76d637cbe8024e509dc445df847e6c3a/2d204ac4fa3143048a998da7e53702d7/

    The list example is wrong. INstead of 10, the second element should be 10.1.

    1 vote

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