Recent US polls challenge Big Data

How the pollsters missed Trump : a failure for prediction models and Big Data ?

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L’élection de Trump et les trois échecs du « big data » électoral

La campagne de Hillary Clinton, supposée être à la pointe des technologies de ciblage électoral, a échoué à la faire élire. Du côté des médias, les modèles prévisionnistes, eux aussi basés sur le « big data », n’ont pas su prédire l’issue du scrutin. Lire…

LE MONDE |

Pollsters struggle to explain failures of US presidential forecasts

Most surveys did not predict Donald Trump’s victory over Hillary Clinton. Read more…

NATURE | 09

Is Donald Trump’s Surprise Win a Failure of Big Data? Not Really

Humans failed, not the data.

Hillary Clinton’s campaign for the presidency was famously, proudly, data-driven. For months, a trail of reporters chronicled the magic of the Clinton team’s “digital strategy” with dizzied wonderment. A data chief who scribbles on walls in erasable marker like Russell Crowe in A Beautiful Mind! Subtle but telling changes to landing page design! Something called “cost per flippable delegate!”
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FORTUNE |

US pollsters’ failure to forecast Donald Trump victory a ‘massive, historical, epic disaster’ says British academic who led review into mistakes over 2015 general election

The British academic who led an official review into how pollsters failed to forecast the result of the 2015 general election said their’ failure to predict Donald Trump’s clear victory is a “massive disaster” for the polling industry which is “high up the Richter scale”.
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FORTUNE |