{"id":38880,"date":"2019-10-31T22:26:31","date_gmt":"2019-10-31T19:26:31","guid":{"rendered":"https:\/\/prohoster.info\/blog\/nedorabotka-v-python-skripte-mogla-privesti-k-nevernym-rezultatam-v-bolee-100-publikatsiyah-po-himii\/"},"modified":"2019-10-31T22:26:31","modified_gmt":"2019-10-31T19:26:31","slug":"nedorabotka-v-python-skripte-mogla-privesti-k-nevernym-rezultatam-v-bolee-100-publikatsiyah-po-himii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/cs\/blog\/news\/nedorabotka-v-python-skripte-mogla-privesti-k-nevernym-rezultatam-v-bolee-100-publikatsiyah-po-himii","title":{"rendered":"Nedostatek v Python skriptu mohl v\u00e9st k nespr\u00e1vn\u00fdm v\u00fdsledk\u016fm ve v\u00edce ne\u017e 100 publikac\u00edch v chemii","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Doktorand na Havajsk\u00e9 univerzit\u011b zjistil<\/a><\/noindex> probl\u00e9m v Python skriptu, kter\u00fd se pou\u017e\u00edv\u00e1 pro v\u00fdpo\u010dty chemick\u00e9ho posunu<\/a><\/noindex>, kter\u00fd ur\u010duje chemickou strukturu zkouman\u00e9 l\u00e1tky p\u0159i spektroskopick\u00e9 anal\u00fdze sign\u00e1l\u016f pomoc\u00ed jadern\u00e9 magnetick\u00e9 rezonance<\/a><\/noindex>. B\u011bhem ov\u011b\u0159ov\u00e1n\u00ed v\u00fdsledk\u016f v\u00fdzkumu jednoho ze sv\u00fdch profesor\u016f si doktorand v\u0161imnul, \u017ee p\u0159i spu\u0161t\u011bn\u00ed skriptu v r\u016fzn\u00fdch opera\u010dn\u00edch syst\u00e9mech na stejn\u00e9m souboru dat byly v\u00fdstupy odli\u0161n\u00e9.<\/p>\n

Nap\u0159\u00edklad p\u0159i spu\u0161t\u011bn\u00ed na macOS 10.14 a Ubuntu 16.04 pro testovan\u00fd soubor dat skript vracel<\/a><\/noindex> nespr\u00e1vnou hodnotu 172.4 m\u00edsto 173.2. Skript obsahuje p\u0159ibli\u017en\u011b 1000 \u0159\u00e1dk\u016f k\u00f3du a chemici ho pou\u017e\u00edvaj\u00ed od roku 2014. Zkoum\u00e1n\u00ed k\u00f3du uk\u00e1zalo, \u017ee v\u00fdstup nespr\u00e1vn\u00e9 hodnoty byl zp\u016fsoben<\/a><\/noindex> rozd\u00edly p\u0159i t\u0159\u00edd\u011bn\u00ed soubor\u016f v r\u016fzn\u00fdch opera\u010dn\u00edch syst\u00e9mech. Auto\u0159i skriptu se domn\u00edvali, \u017ee funkce «glob()<\/a><\/noindex>» v\u017edy vrac\u00ed soubory se\u0159azen\u00e9 podle n\u00e1zvu, zat\u00edmco v dokumentaci k glob je uvedeno, \u017ee po\u0159ad\u00ed v\u00fdstupu nen\u00ed zaru\u010deno. Oprava spo\u010d\u00edvala v p\u0159id\u00e1n\u00ed list_of_files.sort() po vol\u00e1n\u00ed glob().<\/p>\n

\"Nedostatek<\/a><\/noindex><\/center><\/p>\n

Zji\u0161t\u011bn\u00fd probl\u00e9m zpochybnil spr\u00e1vnost v\u00edce ne\u017e 100 publikac\u00ed v oblasti chemie, jejich\u017e z\u00e1v\u011bry byly u\u010din\u011bny na z\u00e1klad\u011b v\u00fdpo\u010dtu chemick\u00e9ho posunu skriptem. P\u0159esn\u00fd po\u010det studi\u00ed, ve kter\u00fdch byl skript pou\u017eit, nen\u00ed zn\u00e1m, ale publikace s jeho k\u00f3dem byla citov\u00e1na v 158 prac\u00edch. Autor\u016fm t\u011bchto prac\u00ed bylo doporu\u010deno posoudit spr\u00e1vnost fungov\u00e1n\u00ed skriptu ve vyhodnocen\u00fdch opera\u010dn\u00edch syst\u00e9mech a prov\u00e9st p\u0159epo\u010det, aby se ujistili o spr\u00e1vnosti vypo\u010d\u00edtan\u00fdch hodnot. Tento incident je vynikaj\u00edc\u00edm p\u0159\u00edkladem toho, \u017ee nejen kvalita proveden\u00e9ho experimentu, ale i spr\u00e1vnost zpracov\u00e1n\u00ed z\u00edskan\u00fdch dat v programech, kter\u00e9 byly do t\u00e9 doby \u0161iroce pou\u017e\u00edv\u00e1ny, m\u016f\u017ee ovlivnit kone\u010dn\u00fd v\u00fdsledek.
\nDoktorand na Havajsk\u00e9 univerzit\u011b objevil probl\u00e9m ve.<\/p>\n

<\/a><\/noindex><\/p>\n

Zdroj: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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