bring up to date with master

brain-computer-interface/README.md

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+# Brain–computer Interface
+
+- [Brain-computer interfaces for communication and control](http://www.cs.cmu.edu/~tanja/BCI/BCIreview.pdf)
+- [Breaking the silence: Brain-computer interfaces (BCI) for communication and motor control](https://onlinelibrary.wiley.com/doi/full/10.1111/j.1469-8986.2006.00456.x)
+- [Learning to Control a Brain–Machine Interface for Reaching and Grasping by Primates](https://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.0000042)
+- [BrainNet: A Multi-Person Brain-to-Brain Interface for Direct Collaboration Between Brains](https://arxiv.org/pdf/1809.08632.pdf)

privacy/README.md

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 * [Differential Privacy(2006)](https://www.microsoft.com/en-us/research/wp-content/uploads/2016/02/dwork.pdf)
 * [Robust De-anonymization of Large Sparse Datasets(2008)](https://www.cs.utexas.edu/~shmat/shmat_oak08netflix.pdf)
 * [Broken Promises of Privacy: Responding to the Surprising Failure of Anonymization(2010)](https://www.uclalawreview.org/broken-promises-of-privacy-responding-to-the-surprising-failure-of-anonymization-2/)
+* [Timing Attacks on Web Privacy(2000)](https://sip.cs.princeton.edu/pub/webtiming.pdf)
+* [Protecting Browser State from Web Privacy Attacks(2006)](https://crypto.stanford.edu/sameorigin/sameorigin.pdf)
+* [KHyperLogLog: Estimating Reidentifiability and
+Joinability of Large Data at Scale(2019)](https://storage.googleapis.com/pub-tools-public-publication-data/pdf/40bc2804cbd3e41ed28dc8991316361eca48630c.pdf)