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Viewing profile — jschafer

jschafer

HN member
Joined
Mon, Dec 23, 2024, 12:11 AM UTC
HN karma
119
Public activity
4 items

About jschafer

Running route based rain forecast regenampel.de for german cyclists.

Recent public activity

  1. comment
    Comment #43895773

    Yes exactly, I was really excited when I found out that you do not need a FFT to do speech processing. If you look at the code of (phone/voice) codecs GSM/Speex/Opus you can see th…

  2. comment
    Comment #42495160

    SQLite only knows nested loop joins and the bloom filter can just tell us "no need to do a join, there is definitely no matching entry". If it has a false positive all the time (th…

  3. comment
    Comment #42495030

    I do not know if it is still the case, but the last time I looked into the source code SQLite did hash all strings to the exact same value. So the bloom filter optimization does no…

  4. comment
    Comment #42490362

    Note that the measurements in the paper were made before they fixed a bug where they confused bits and bytes. So SQLite only used 1/8 of the reserved bloom filter space, thus incre…