hadoop
Today EMC announced the launch of Pivotal HD, their new version of Greenplum HD. Most of the underlying detail are not know and neither the […]
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analytics, business, customer value, marketing
Price deal is a common method to boost sales. Steam push it to an art. There is always a lot of stuff to buy at […]
Open Source ETL tool for data warehouse : Agile and SQL-based
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data warehouse
In those day of huge focus on the Big Data mouvement, it seems that nobody needs a data warehouse anymore but a huge cloud of […]
data warehouse, Greenplum, sql
Usually we use sequence to generate unique identifier for surrogate keys. A sequence is simply a database object that return a number every time you […]
analytics, business, data warehouse
For the end of 2011, many around the blogosphere are forecasting what will be on hype next year. I often read that big data and […]
business, evaluation, marketing
Measuring and managing return on marketing investment, that’s the promise of the book from Guy R. Powell. A famous quote in marketing is : Half […]
data manipulation, data warehouse
My last post discuss about SQL queries. Nevertheless, sometimes data came from differents databases. In such cases, it is no longer possible to use SQL. […]
Data manipulation is a big part of a data mining process. Some authors claims it could take 80% of a data mining project. I could […]
data mining
When deploying a model, one very important thing is to monitor the results. Does it work like you’ve expected? I’m not talking about pre production […]
analytics, data mining
Lately, I was thinking on the difference between machine learning and simulation (for prediction). Machine learning use historical inputs and outputs to find subsequent outputs. […]
