What is it about?
Sorted merge is very slow when the number of objects is large. Merging VCF file is a prime example and commonly faced in large scale sequencing-based genetics study. We showed ways to do this in the cloud using distributed system including MapReduce, HBase and Spark, which is much faster.
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Why is it important?
We are solving a very practical problem in genetics using cloud computing.
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This page is a summary of: Optimized distributed systems achieve significant performance improvement on sorted merging of massive VCF files, GigaScience, May 2018, Oxford University Press (OUP),
DOI: 10.1093/gigascience/giy052.
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