POST- vs PRE- : computer-aided data analysis

Few days ago I had a short, informal meeting with few peers - among other things, they've asked about the interesting stuff I was doing recently, including data crunching powered by Apache Hadoop and complex event processing with Apache Storm. I went throught the stuff quite quickly just to give them a glimpse of the possibilities you have with real-time computing & big data analysis. Storm truly has caught their attention immediately, but they (well, some of them) shocked me with the following opinion on Hadoop: The Hadoop stuff - I don't see much value in that, as it analyses…

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