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Articles on Big data

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Dust storms in the Gulf of Alaska, captured by NASA’s Aqua satellite. NASA

Half of Earth’s satellites restrict use of climate data

There are more satellites than ever before, orbiting Earth and collecting data that’s crucial for scientists. Why do some nations choose not to share that data openly?
Facebook already controls how its users’ data can be gathered and shared. It’s university ethics boards that need to join the digital age. Shutterstock

Regulating Facebook won’t prevent data breaches

The Cambridge Analytica scandal wasn’t a data breach – it was a violation of academic ethics. Maybe it’s universities, not social networks, that need to update their privacy settings.
Tech companies can use differential privacy to collect and share aggregate data about user habits, while maintaining individual privacy. Tim Snell/Flickr

Explainer: what is differential privacy and how can it protect your data?

How should privacy be protected in a world where data is gathered and shared with increasing speed and ingenuity? Differential privacy, a new model of cyber security, provides a potential solution.

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