2019년 11월 28일
Excellent overview of Spark, including exercises that solidify what you learn during the lectures. The development environment setup tutorials were also very helpful, as I had not yet worked with sbt.
2017년 6월 7일
The sessions where clearly explained and focused. Some of the exercises contained slightly confusing hints and information, but I'm sure those mistakes will be ironed out in future iterations. Thanks!
교육 기관: Rug•
2022년 3월 10일
The course contents were good, but some warm up exercises which are easier would have been great. Further, the grading scheme ist not that transparent and in particular in the last assessemet some sample unit tests would have been helpful.
교육 기관: Benjamin S•
2017년 9월 12일
The lectures are really great with vivid and easy-to-follow explanations on complex topics.
However, the exercises don't seem to match the lectures very well and may confuse you. I would prefer to apply the things I learned in the lectures.
교육 기관: Gian U L•
2017년 5월 7일
In the assignments, I had the feeling that the goal was more "guess what they want" than "write it correctly using what you have learnt". Stating more clearly the requirements and improving error messages from the grader may help.
교육 기관: Aaron H•
2018년 1월 22일
Instructor was good and knew what she was talking about. The assignments were also good, but the grading was weird. Spent a lot of time try to figure out the unwritten requirements that would make Coursera's tests pass.
교육 기관: Virapat K•
2021년 2월 2일
The course is good overall. The assignment is OK. The tests should and grading should be more transparent. There are a lot of errors that are difficult to decipher.
Also week 2 assignments have bugs in the codes.
교육 기관: Serg D•
2020년 4월 14일
It was a good course, much more useful than the first one in the series. I would say too much focus was on the SQL side and not enough on the big data side, which is what i was hope to get from the course.
교육 기관: Aitor S G•
2021년 2월 24일
The course is okay, but the presentations are blurry, which is annoying. I would like to go more in-depth, like optimizations, stages, partition pruning...
교육 기관: Nikita V•
2017년 5월 11일
I guess it's a goo introduction course into Apache Spark. Meantime I would expect deeper dive into optimizations and algorithms.
교육 기관: Moiseenko A•
2020년 5월 6일
There is not any course support at all.
Provided drafts of program assignments does not satisfy SOLID and Clean-code principles
교육 기관: Kyle J•
2019년 5월 21일
Pretty good, but one of the assignments was poorly set up. Some of the provided code was broken and it was very hard to debug.
교육 기관: Virginija D•
2017년 8월 7일
Too entry-level after the first two much more challenging courses by M. Odersky.
교육 기관: Jinyi S•
2021년 5월 9일
It's a little bit difficult for me in its configuration part
교육 기관: Hans R•
2020년 10월 25일
Explains the core concepts very well, but lacks depth.
교육 기관: Mortatha K H•
2020년 7월 8일
it's hard for beginner understanding this course
교육 기관: Ioannis A•
2018년 9월 25일
course needs to be updated
교육 기관: Cherniaev A•
2021년 2월 7일
Good, but outdated course
교육 기관: José F•
2017년 4월 17일
a let down and not up to par with other courses in the series.
Huge amount of time is wasted bsically repeating that the API is close to scala collections'. The huge amout of time is wasted again on very simple dataframe APIs including several slides presenting the show() function. Allow me to repeat : several slides presenting the show() function.
Finally the assignments are unimaginative and mechanical. The desciption is really confuse and most of the time is spend trying to chase small differences away to please the grader.
The sole part of the course that seemed interesting was the shuffling one, that was unfourtunately ignored on the assignments
Not related to the course but to spark: What utter mess are dataframes and datasets filled with boilerplate type conversions and runtime erros. I shy away in disgust form this untyped IDE-unfriendly monstruosity.
교육 기관: Vladyslav S•
2017년 5월 6일
Relatively decent video lectures, if not that blurry which makes text hard to read. Accompanied with awful practice lessons: - code templates are written with little to no style, even file reading is done in 3 different ways in all 3 lessons; - grader output is very confusing and almost useless; - unit tests, very useful to avoid some common caveats, were present in the first lesson, disappear completely in the last one.
Probably following spark's programming guide is better time investment, even if it misses some "humanity" of video lectures
교육 기관: Prathviraj S C•
2020년 2월 25일
How to execute assignments and weekly work is not properly described in assignment task, it took lot's of time to understand how to execute the project and which software with what configuration is needed. This course is good to learn but submitting assignments is very much difficult. This course can become awesome if the proper guidance is provided for submitting tasks and if demo available how to execute the same.
교육 기관: Mikołaj J•
2017년 6월 5일
So many mistakes in the slides. Coding exercises are so hard to comprehend, it's tough to know what you are trying to achieve. I have already done a course in spark, this was supposed to be just refresher, but now I'm just confused...
교육 기관: Owen N•
2017년 4월 9일
Course material was pretty good, but the lectures were hard to watch. Lots of editing problems, and blurring on the text (gave me a headache several times). Would rate higher if the videos were improved.
교육 기관: Vassileios L•
2021년 6월 5일
There is no Scala taught whatsoever, the title is misleading. I had to use stackoverflow in hardcore mode to be able to solve the assignments and the lessons did not help almost at all with that.
교육 기관: rafael f o•
2020년 6월 7일
not good teacher lessons
교육 기관: Dan O•
2017년 3월 25일
Slow videos repeating several times the same thing (not a pedagogical / "good to fix an idea" kind of repetition), which makes them hard to follow.
However the worst are the exercises: the first time after 3-4 other Coursera Scala related courses where I have to actively check the forums for minute details about what is expected / implied for the solutions to pass the grading.
Things like what to do when updating the kmeans and you have duplicates, subtle differences between average and mean, etc. ...
In all other courses the expectation of the exercises were sufficiently clear and straight forward that I never had to check the forums to solve them.
Also, the code style of the exercises is literally an anti-pattern in idiomatic Scala, against everything learnt in the previous Scala courses: "var" all over the place, low level loops like in C or Java, etc. ...
교육 기관: Марко И•
2017년 4월 10일
I don't know what happened but it seems they had technical or some other problem while preparing this course. Some assignments were more oriented to solving marginal problems then using Spark and distributed and parallel computing. And that is really annoying. Previous 3 courses were great, maybe this one will improve.