Big data and clinical research: perspective from a clinician.

Abstract

The 21 st century is an era of information technology and people faces information explosion with large amount of data. The term big data has been defined in Wikepedia as: big data is the term for a collection of data sets so large and complex that it becomes difficult to process using on-hand database management tools or traditional data processing applications. In all areas of disciplines, such a big data may help to explore underlying mechanisms of varieties of phenomenon, and further facilitate decision-making. For example, in the 2012 USA presidential election, data-driven decision-making played a huge role in helping Obama win (1). In biomedical field, big data also begin to show its important role. Medical decision-making is becoming more and more dependent on data analysis, rather than conventional experience and intuition (2).

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