I am referring to:
Week 1
Video named K-means-Algorithms
In the mentioned video the instructor mentiones in Minute 3:28 that the course of that week would contain an optional lab. But this is missing in the course.
From my point of view an optional lab is really required here because for instance it is not explained which vektor distances should be caclulated (e.g. euclidean distance?)
Hi @VKlueber,
The most commonly used distance metric in K-means is the Euclidean distance because it is simple and works well in most cases. However, other metrics can be used depending on the context, such as Manhattan Distance, Cosine Similarity, Minkowski Distance, etc.
Hope this helps! If you have any questions or need further clarification, feel free to ask.
Thanks @Alireza_Saei this helped for the specific question.
Nevertheless in general the question is why the optional labs are missing in this course although it was mentioned by the instructor that there would be an optinal lab?
Iām glad the previous information was helpful to you!
Itās possible that what was intended as optional labs has been merged with practice labs and required materials are explained there.
If you have any specific questions or need further clarification on any part of the course, please donāt hesitate to ask the mentors.
Good luck!
Andrew actually says āthe optional labs and practice labsā. I believe this video was recorded in advance of the labs being created, so the script left open an option for either path.
The lab heās referring to is the graded K-means lab (which this course calls a āpractice labā for unknown reasons).
There is no need for an additional optional lab on k-means, since it was all included in the practice lab.