Date: Sun, 4 May 1997 15:39:01 +0200 (MET DST) From: Arno Hollosi Subject: SGFC V0.6 -- gameinfo statistics Hello all, A new version of SGFC (SGF syntax checker and converter) is available. Have a look at the README to see what has changed. SGFC can be downloaded from my SGF draft WWW pages. Gameinfo statistics: -------------------- SGFC is now able to correct almost all dates, results, times and komi values. To get an idea of how many gameinfo values are incorrect and how many of them can be corrected by SGFC have a look below. The given results were reached without user interaction, i.e. the values were automatically parsed and corrected. Note: my game archive consists of about 400 IGS/NNGS games and about 1800 pro games which were downloaded from the Go FTP archive and partially from Jan van der Steen's page. Date (base: David Fotland sent me the date values of about 1000 games) ---------------------------------------------------------------------- 907 dates 361 dates ok 40% 546 dates faulty 60% 454 values corrected 83% of 546/ 91% of nonempty false values 2 values badly corrected new value: [1950-04-20,22], old value: [1950-04-20..22] new value: [1932-01-06,19], old value: [6 - 19 Januari 1932] 47 empty values 8% of 546 45 unable to correct 8% of 546 / 9% of 546-47 23 unable because of day < 12; e.g DT[2/11/1993] 1 no date at all DT[3rd Korean World Title.\\\\] 21 3 day games or games stretching over two month Komi: (base: my own SGF collection) ---------------------------------------------------- 1821 KM values 1775 ok (97%) 16 faulty values 30 empty values 16 corrected by SGFC (100% :) Result: (base: my SGF archive) ------------------------------ ~2200 RE values ~1800 ok (81%) ~400 bad (19%) ~380 corrected (95% of 400) Time: (base: pro games of my SGF archive only [not server games]) ----------------------------------------------------------------- 802 TM values 390 ok (49%) 412 faulty (51%) 58 empty values 354 non empty, false (44%) 346 corrected (98% of all false values) 8 not corrected /Arno