Data Warehousing, NoSQL, and the Cloud

With the nascent advent of NoSql, cloud computing and slick new databases, we seem to have forgotten from whence we came. I went to a conference recently on the open source search product Solr/Lucene. One of the keynote speakers, Chief Data Scientist of HortonWorks, discussed what turned him to NoSQL databases, in this case, a […]

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Building a Naive Bayes Classifier in the Browser using Map-Reduce

The last decade of Javascript performance improvements in the browser provide exciting possibilities for distributed computing. Like SETI and Folding@Home, client-side javascript could be used to build a distributed super-computer, although at the risk of compromising data security and consistency. New HTML5 APIs extend the vast range of Javascript libraries available; for instance, the audio […]


Fixing issues where ExtJS charts don’t render in IE

I’ve encountered several instances where ExtJS charts fail to render in non-obvious ways in IE- these are all with the 3.x branch, but may apply elsewhere. The charts are rendered using a Flash SWF file repurposed from YUI libraries. By default, ExtJS pulls the SWF from a Yahoo! CDN, unless configured otherwise. Recently YUI upgraded […]