1-DAV-202 Data Management 2024/25
Difference between revisions of "HWcloud"
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See also the [[Lcloud|lecture]] | See also the [[Lcloud|lecture]] | ||
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| + | Important: This homework counts only for bonus points. | ||
For both tasks, submit your source code and the result, when run on whole dataset (<tt>gs://mad-2022-public/</tt>). | For both tasks, submit your source code and the result, when run on whole dataset (<tt>gs://mad-2022-public/</tt>). | ||
Revision as of 12:48, 9 May 2022
See also the lecture
Important: This homework counts only for bonus points.
For both tasks, submit your source code and the result, when run on whole dataset (gs://mad-2022-public/). The code is expected to use the Apache beam framework and Dataflow presented in the lecture. Submit directory is /submit/cloud/
Task A
Count the number of occurrences of each 4-mer in the provided data.
Task B
Count the number of pairs of reads which overlap in exactly 30 bases (end of one read overlaps beginning of the second read). You can ignore reverse complement.
Hints:
- Try counting pairs for each 30-mer first.
- You can yield something structured from Map/ParDo operatation (e.g. tuple).
- You can have another Map/ParDo after CombinePerKey.
- Run code locally on small data to quickly iterate and test :)
