List/Grid Tag Archives: Big Data

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The future of Big Data is linked to Cloud

Data volumes are growing exponentially. Unstructured data from Twitter, LinkedIn, Mailling Lists, etc. has the potential to transform many industries if it could be combined with structured ...
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Can MapReduce solve planning problems?

To solve a planning or optimization problem, some solvers tend to scale out poorly: As the problem has more variables and more constraints, they use a lot more RAM memory and CPU power. ...
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Big data: when single node is better than clustered

There’s a lot of hype about “big data” and a general trend to try to apply Hadoop to almost every problem. However, sometimes it turns out that you can get much better results ...
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Big Data: What about Security?

From the first time Hadoop appeared it had a security problem. Apache Knox and Cloudera Manager have been solutions for providing authentication and authorization for basic database ...
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NoSQL is not just about BigData

There is so much debate on the SQL vs NoSQL subject, and probably this is our natural way of understanding and learning what’s the best way of storing data. After publishing the small ...
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Big Data the ‘reactive’ way

A metatrend going on in the IT industry is a shift from query-based, batch oriented systems to (soft) realtime updated systems. While this is associated with financial trading only, ...
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Drones and Big Data

Two weeks ago, I had a conversation with some colleagues where I was postulating a future bull market for drones, as I envisioned a number of commercial applications (food service, ...
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Creating an on-line recommender system with Apache Mahout

Recently we’ve been implementing a recommender system for Yap.TV: you can see it in action after installing the app and going to the “Just for you” tab. We’re using Apache Mahout ...
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Unit testing a Java Hadoop job

In my previous post I showed how to setup a complete Maven based project to create a Hadoop job in Java. Of course it wasn’t complete because it is missing the unit test part . In ...
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Broken Glass : Diagnosing Production Cassandra Issues

I just past my second year anniversary at Health Market Science (HMS), and we’ve been working with Cassandra for almost the entirety of my career here.   In that time, we have ...
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