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Overfitting in Data Analysis - Too close for comfort

By Paulo C. Rios,  Jr.

When we try to fit a data model to our training data set, we may get a very good accuracy. But what we are really interested about is how we perform with the test data set. 287 more words

Data Science

My Trips to be offered free indefinitely

5/29/15, 2g Transit Solutions, Inc. announced today that it will be indefinitely extending the free trial of the My Trips personal dashboard for paratransit passengers. 279 more words


SSAS: An Overview of OLAP

The Foundation of Business Intelligence (BI)

Online Analytical Processing (OLAP) is the mechanism by which vast amounts of data is leveraged for strategic decision-making, allowing organizations desiring to achieve and maintain a competitive lead in their market. 134 more words


Apache Advances Parquet Columnar Storage Project

Will Apache Parquet be the “next big thing” in the Big Data/Hadoop ecosystem? It was only 14 months ago that the Apache Spark project was graduated to a top-level project by Hadoop steward Apache Software Foundation (ASF), and that technology has quickly taken the industry by storm, rivaling Hadoop itself in publicity. 62 more words

Business Intelligence