I have a maybe interesting cardinality estimation problem. Twitter-friends, who should I talk to?
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@avibryant@todd534 we currently use a similar approach. The hope is that we can get some advantage with having sets & complements... -
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@avibryant@todd534 that was my hope, but no such luck. Closest thing I've found used HLL + minhash. Convert the expr to CNF then... -
@avibryant@todd534 compute unions for each sub expr then intersect all. It's not clear how error compounds as more sets are intersected. -
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@avibryant@todd534@posco was looking at http://tech.adroll.com/blog/data/2013/07/10/hll-minhash.html … uses minhashes to estimate set similarity. Usual prob w/ large card. diff - 4 more replies
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@avibryant@todd534@cbeckpdx: If you guys wanna whiteboard over lunch next week let me know. -
@rcoder@avibryant@cbeckpdx love to, but i'll be in pittsburgh all week. week after? -
@todd534@cbeckpdx: I'll be in SF starting the new gig w/@avibryant...maybe email or something. -
@rcoder@cbeckpdx@avibryant lol that's interesting news. what do? -
@todd534@cbeckpdx@avibryant: joining@stripe; dunno exact team yet but gonna rock the actual coding every day thing for a bit -
@rcoder@todd534@avibryant@stripe awesome! Excited to hear how that goes.
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