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Week 2, 28 Sep – 2 Oct

Welcome to week 2!

The written materials and the videos are now up. (You may need to refresh a page to see videos. We will try to release the notes and videos earlier in future weeks.)

The material this week is important: it is essential you know how to use training/validation/test sets correctly and what they are for. You need to know how to put “error bars” on your results — but also which error bar you want (if any). Finally, we construct multivariate Gaussians from scratch, because these are needed in many of the models and methods in the remainder of the course. Unfortunately covering all these fundamentals doesn’t leave much time to talk about learning and data this week. However, we will talk about learning methods again next week, and this week’s question sheet does have some data in it.

Here is what you need to do in Week 2:

There is no official deadline this week, and what you submit doesn’t contribute towards your grade. However, we recommend that you aim to finish the questions (in the notes and question sheet) by the end of Thursday (polishing anything if necessary until 4pm UK time on Friday), to get into a routine for future weeks.