> On Oct 11, 2015, at 4:11 PM, Steven Franke <s.j.fra...@icloud.com> wrote: > > Hi Joe and all, > > This message summarizes my recent work on jt65 decoding in 1.6.1. > > I’ve added 3 new entries to the table summarizing JT-65a decoding results on > my batch of 333 20m .wav files. > > Program Good Bad Soft Decoder > -------------------------------------------------------------------------------------------------------- > 1. WSJT-X r5922 3125 0 574 BM+kvasd (18.4% kvasd) > 2. WSJT-X r5922 3123 2 572 BM+sfrsd (18.4% sfrsd, > ntrials=10000) > 3. WSJT-X r5922 2551 0 0 BM only > 4. WSJT-X r5955 2704 0 482 BM+sfrsd2 (17.8% sfrsd, > ntrials=5000) > 5. WSJT-X r5955 2222 0 BM only > 6. WSJT-X r5970' 2352 0 BM only (ntrials set equal > to 0, thresh0=2.5) > 7. WSJT-X r5970 2930 ? 579 BM+sfrsd2 (19.7% sfrsd, > thresh0=2.5, ntrials=2000) > 8. WSJT-X r5970’ 3013 ? ? BM+sfrsd2 (thresh0=1.5, > ntrials=2000) > > The r5970 version includes a number of tweaks: > - threshold is now set to 2.5, ntrials is 2000 > - a couple of fixes for out-of-bounds errors related to the switch to the > sync65 routing that I experienced on my data set > - new erasure probabilities for use with the simple “sf” symbol metrics > - simplification of the codeword acceptance criteria in sfrsd2 and extract - > all acceptance tests moved into sfrsd2. > > I did many runs (my notes from this weekend include 25 runs with various > tweaks and changes) and concluded that, for my data, I got better results > using matched sf symbol metrics and erasure probabilities — ymmv. > > While performance is significantly better in r5970 than it was in r5955, the > overall number of decodes is still less than what it was back in r5922. On > the other hand r5970 is running much faster than r5922 did, because r5922 > used ntrials=10000.
I should add to this that the results quoted for r5922 were obtained only after lowering the thresh0 setting to 1.0 in that program. ------------------------------------------------------------------------------ _______________________________________________ wsjt-devel mailing list wsjt-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wsjt-devel
