Viewing profile — jschafer
jschafer
HN member- Joined
- Mon, Dec 23, 2024, 12:11 AM UTC
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About jschafer
Running route based rain forecast regenampel.de for german cyclists.
Recent public activity
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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…
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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…
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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…
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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…