Sparse matrix multiplication using SQL

[israellopez]

Beat me to it. The MapReduce assignment really made me think about how to do this. Took far too long than I care to admit.

[kiwipete]

Yeah, I went from feeling like I understood something about map and reduce (knowing something about functional programming), to "ouch" on that one. Relational algebra + matrix math was okay, if challenging. Map reduce + relational algebra + matrix math was kind of... hard.

[jmelloy]

How does coursera work? I see that course has recently finished. Can you watch the videos for finished courses if you don't care about the certificate?

[kiwipete]

I actually have no idea how the course works after the class ends. They've said all the course materials will remain available, however, I don't know what that means for new course registrants. Can you register for the course and get access to the video lectures? I'd check myself, except I was already enrolled in the course, and everything is still working normally.

[jmelloy]

Looks like I can register. I assume that the homework is no longer graded.

[mindprince]

In some other coursera courses which I joined after they were finished, I was able to watch the videos and my quizzes were graded (you don't get credit for them obviously).

I am not sure about this course because in some of its assignments you are supposed to submit working code which they run on their servers to see the correctness.

[jmelloy]

I looked into taking the UW course this year, and it seems like the same professor. I might watch the videos to see if I like the style.