Abstract
In February 2010, National Centers for Disease Control and Prevention (CDC) identified an outbreak of flu in the mid-Atlantic regions of the United States. However, 2 weeks earlier, Google Flu Trends [1] had already predicted such an outbreak. By no means does Google have more expertise in the medical domain than the CDC. However, Google was able to predict the outbreak early because it uses big data analytics. Google establishes an association between outbreaks of flu and user queries, e.g., on throat pain, fever, and so on. The association is then used to predict the flu outbreak events. Intuitively, an association means that if event A (e.g., a certain combination of queries) happens, event B (e.g., a flu outbreak) will happen (e.g., with high probability). One important feature of such analytics is that the association can only be established when the data is big. When the data is small, such as a combination of a few user queries, it may not expose any connection with a flu outbreak. Google applied millions of models to the huge number of queries that it has. The aforementioned prediction of flue by Google is an early example of the power of big data analytics, and the impact of which has been profound.
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References
Google Flu Prediction, available at http://www.google.org/flutrends/.
R. Rubinfeld, Sublinear Algorithm Surveys, available at http://people.csail.mit.edu/ronitt/sublinear.html.
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Wang, D., Han, Z. (2015). Introduction. In: Sublinear Algorithms for Big Data Applications. SpringerBriefs in Computer Science. Springer, Cham. https://doi.org/10.1007/978-3-319-20448-2_1
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DOI: https://doi.org/10.1007/978-3-319-20448-2_1
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