4 ms·
That’s, loosely, what “Reorder bytes + Delta” does, isn’t it? It groups together the first bytes of floats, delta encodes them and then compresses them, and rep
by Someone 4y ago
That’s, loosely, what “Reorder bytes + Delta” does, isn’t it? It groups together the first bytes of floats, delta encodes them and then compresses them, and repeats that for the second, third, and fourth bytes.
The first byte of a IEEE float has 7/8 of the exponent. If these are successive measurements, chances are they have lots of series of identical values, and the delta-encoded stream will have lots of zeroes.
- aras_p 4y ago"Kind of". My understanding is that block floating point actually makes a bunch of numbers have the same exponent (probably the largest among the group). That's not exactly the same as reordering bytes where exponents can be different (but maybe similar). So "block" is not a lossless transformation/compression.