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    Monday, July 30, 2018

    Self-balanced Binary Search Trees with AVL Computer Science

    Self-balanced Binary Search Trees with AVL Computer Science


    Self-balanced Binary Search Trees with AVL

    Posted: 29 Jul 2018 09:25 AM PDT

    The ECB: A bestiary of evolutionary, swarm and other metaphor-based algorithms.

    Posted: 29 Jul 2018 05:55 PM PDT

    Practical Accountability of Secret Processes: hierarchical MPC scheme that partially reveals the extent of government surveillance without compromising investigations

    Posted: 29 Jul 2018 01:53 PM PDT

    Reasoning of Variables & Allocation Sites

    Posted: 29 Jul 2018 12:45 PM PDT

    I wanted to share this quick intro to pointer analysis.

    I'm still new to program analysis, but this model of reasoning about pointers and allocation sites as a points-to graph has helped me visualize object instantiation in my everyday as a coder.

    It essentially discusses the problem of how do we reason about what a variable may point to during all executions of the program? Looking forward to any discussion!

    submitted by /u/tulip_bro
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    The Problem with Analytics

    Posted: 29 Jul 2018 05:13 PM PDT

    Partial de-anonymization of Internet posters?

    Posted: 29 Jul 2018 08:55 AM PDT

    I'm tossing around ideas in my head for a project that would allow sites to publish some sort of "token" along with user posts that would provide partial information about the poster's identity, without completely unmasking them.

    The best I've come up with so far is a 3rd party service that maintains a "secret" which is a random string that changes periodically, and provides an API for computing a SHA-256 or similar hash salted with it. You could hash the user's source IP address this way and publish that hash. Neither the public nor the poster could reverse it realistically, even with the poster knowing their own IP address. This would at least allow posts from the same IP address within a time window to be identified.

    But, I'd like something more sophisticated that allows us to reveal a little more structure than just equality, but my exposure to hashing/possibly homo-morphic encryption is limited. Does anyone have any thoughts on a system that might eg: allow geolocation down to a country level?

    submitted by /u/gct
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