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> Unfortunately, without so much as a "hello", I was jumped on and > declared to be a liar. You may simply be deluded, instead. > Continuing, so do the curve fit. 30 terms. > > And from the resulting coefficients, produce an approximation of the > original input. Bing! An approximation. NOT the original data. > In fact if you extract the left-most three or four significant bits you > have yourself a very compressible signal. Just remember that what does > not compress, you have to send. And sending costs -- that's the measure > by which all compressors are judged; how much do you have to send. At this point, you cannot reconstruct the original data without sending all of it. > widely variant number's of columns. But this is the gestalt of my > learning: > > Expect about 5k, maybe 7k compression per logical pass. Not a lot, > I know. But you can keep throwing away data forever! Well, until there isn't any more. But you never get the original data back. > And while this method doesn't have any merit, (because of the huge CPU > overhead necessary to do the curve fitting,) other systems, not based > on floating point mechanics or involving integer DSP logic work well, > Unfortunately, these are all bit based and, running on an X86 box, do > require lot's of machine time. I have discovered a wonderful method for infinite compression; however, the margin of this book is too small to contain it. Oh. Bad example. John Wilkes (is that his name?) eventually solved Fermat's Last Conjecture. > Of course, this is a special case, because this process involves a step > that requires lot's of CPU time! As I keep saying, it's not practical. > But does it work? Absolutely. Not. Stop deluding yourself: compress a nice executable file, decompress it at the other end, and diff the original with your output. Whoops. -dsr- -- If they want to install software with "one click", they should install a word processor. Installing a mail server without understanding can cause problems for the rest of the world, and so requires a little more responsibility. - Charles Cazabon
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