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by kazinator
2580 days ago
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The Roaring bitmap paper is equally opaque in this regard. I easily understand everything about the bitmaps themselves: the compression and various operations. But then they say that they tested it on some Census1881 data, and I'm thinking, what, how? How do you grind census data into a bitmap? And is everything in the bitmap, including people's names and such, or does the bitmap refer to objects that are not in the bitmap? |
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