5k:Y⇥ Figure 5: 2017tnÏÆÂȸ∑¸∫Ûn˙Aáh‹ c ˙Aá ∞È’⌦Ëíããh ©,xKn‹c ˙A áL‘⇤ÑNÅk˙fDãh∫çgMã⇥ ´¸◊ o2017tnDeNAhnØȧfi√Øπ∑͸∫g ,4&n1πí˝Fmfin!{ÄAn}_k„Sg© ,xKíw(W_⇥Púoz/ä /kBèä P @óπíjHZSnf í=hWf2›3W ¢…– Û∆¸∏+Ä gãKíKQâå_⇥Sn4bL∑ ͸∫ízöeQ_h⌥XWfDã⇠ãÇBã[7]⇥ ∞È’↵Ëgo ↵4A⇥xKo‹c ˙Aá L‘⇤ÑÿÅk˙fDã⇥ 2017tnØȧfi√Øπ ∑͸∫n˙4ojKc_L Sn∞È’íããh w(Yãxû¢ÇX(W_àFk⇤Hâåã⇥ jJSn˙Aáo fi–õUå_«¸øª√»K â S-åk¢¶»pLóHfDãK&KhDFa ˆg!◆Ñk\⇣W_⇥µË ÈBjif n å nË⌃í⇤ngMfJâZ ⇢⌘n§Óí+Ä⇥ Sn⇣>‹cn⇤Hπo ˙Aá`QgojO OPS (On–base plus slugging) [8]Ñ WHIP (Walks plus Hits per Inning Pitched) [9]jin⌥⇡kÇi (gMã⇥ 5 P÷ ,vgo ´¸◊íÂ, kYãyO ÊKh YãÌ z&nULw &hpjãK_∞f“g⌃ êW_⇥wSÑko §A&K&K íÓÑ ph Yã_∞f“n⌃^hí◆ÙW y¥œnÕÅ¶Ñ à,$íBÅ_⇥⌃êPúí⇤flW Ì z&g; çWFãxKnyöÑ⇣>‹cnπ’í–HW_⇥ 6 F⇧9À u++ / Shotaro Ishihara: ãm⇢>g«¸ø⌃êk ìã⇥«¸ø⌃ê≥Û⁄gnfi—róL⌥pfiBä «>Kâ PythongoXÅãKaggleπø¸»÷√ Ø✏í˙HW_⇥ Sports Analyst Meetup hLW_ §ŸÛ»íK∂WfDã⇥ https://upura.github.io/ ¬⇤á. [1] åW õ†Q`c_… Â,SgüõÓí X _ɈL≈{gNTYÀc≠„Û◊, ’δ¶ Û»—Œ⇤˚MLBnœ ≥ȇµ§»— (2018), https://full-count.jp/2018/11/20/post251994. [2] rçW~Quest2020stayhome⇢◊ÌŒ⇤«¸øí (D_M⇤à,, SIGNATE - Data Science Compe- tition (2020), https://signate.jp/competitions/274. [3] Guolin Ke et al. ”LightGBM: A Highly E cient Gradient Boosting Decision Tree”. In Proceed- ings of the 31st International Conference on Neu- ral Information Processing Systems, pp. 3149-3157 (2017). [4] Shachar Kaufman et al. ”Leakage in data mining: formulation, detection, and avoidance”. In Pro- ceedings of the 17th ACM SIGKDD international conference on Knowledge discovery and data min- ing, pp. 556–563 (2011). [5] sklearn.metrics.roc auc score, scikit-learn 0.23.1 documentation (2020), https:// scikit-learn.org/stable/modules/generated/ sklearn.metrics.roc auc score.html. [6] 2017t¶Éˆq↵´¸◊↵∫ïK⇣> Øȧfi √Øπ∑͸∫’°§ Îπ∆¸∏ , NPB.jp  , Œ ⇤ _ À (2017), https://npb.jp/bis/2017/ stats/idb1s2 c.html. [7] É ˆ CSW n3d n Å ‡⇥ ª ˚ Í ¸ ∞ ã ⇧ oj\↵K⌦í1W_nK , Ÿ¸π‹¸Î ¡„ÛÕÎ(BaseBall Channel) (2017), https:// www.baseballchannel.jp/npb/40685. [8] What is a On-base Plus Slugging (OPS)?, Glos- sary (2020), http://m.mlb.com/glossary/standard- stats/on-base-plus-slugging. [9] Walks And Hits Per Inning Pitched (WHIP), Glos- sary (2020), http://m.mlb.com/glossary/standard- stats/walks-and-hits-per-inning-pitched.