å調ãã£ã«ã¿ãªã³ã°ã®ååãæè¡ãå¿çšããããŠãŠãŒã¶ãŒè¡ååæãšããŒãœãã©ã€ãºæšèŠã«ãããå°æ¥ååãæ¢ãå æ¬çã¬ã€ãã
å調ãã£ã«ã¿ãªã³ã°ïŒããŒãœãã©ã€ãºãããäœéšã®ããã®ãŠãŒã¶ãŒè¡åã®è§£æ
仿¥ã®ããŒã¿è±å¯ãªäžçã§ã¯ããŠãŒã¶ãŒã¯æ å ±ã®æŽªæ°Žã«ãããããŠããŸããæ°çŸäžã®ååãå±ç€ºããEã³ããŒã¹ãã©ãããã©ãŒã ãããèšå€§ãªã³ã³ãã³ãã©ã€ãã©ãªãæäŸããã¹ããªãŒãã³ã°ãµãŒãã¹ãŸã§ããã®å§åçãªéã«æã¡ã®ããããããšããããŸããå調ãã£ã«ã¿ãªã³ã°ïŒCFïŒã¯ããã®ãã€ãºããµããã«ããããŠãŒã¶ãŒã®å奜ãäºæž¬ããæºè¶³åºŠãšãšã³ã²ãŒãžã¡ã³ããé«ããããŒãœãã©ã€ãºãããäœéšãæäŸããããã®åŒ·åãªæè¡ãšããŠç»å ŽããŸããã
å調ãã£ã«ã¿ãªã³ã°ãšã¯ïŒ
å調ãã£ã«ã¿ãªã³ã°ã¯ãå€ãã®ãŠãŒã¶ãŒããå奜ãåéããããšã«ãã£ãŠããããŠãŒã¶ãŒã®èå³ãäºæž¬ããæšèŠæè¡ã§ãããã®æ ¹åºã«ããä»®å®ã¯ããéå»ã«æèŠãäžèŽãããŠãŒã¶ãŒã¯ãå°æ¥ãæèŠãäžèŽããã ããããšãããã®ã§ããæ¬è³ªçã«ãããã¯ã矀è¡ã®ç¥æµããæŽ»çšããŠãæ å ±ã«åºã¥ããæšèŠãè¡ããŸããã¢ã€ãã ã®ç¹æ§ïŒã³ã³ãã³ãããŒã¹ãã£ã«ã¿ãªã³ã°ïŒãæç€ºçãªãŠãŒã¶ãŒãããã¡ã€ã«ã«äŸåããã®ã§ã¯ãªããCFã¯ãŠãŒã¶ãŒãšã¢ã€ãã ã®é¢ä¿ã«çŠç¹ãåœãŠãé¡äŒŒæ§ã®ãã¿ãŒã³ãç¹å®ããé¡äŒŒãããŠãŒã¶ãŒã®å奜ãé¡äŒŒããã¢ã€ãã ã®äººæ°ã«åºã¥ããŠãŠãŒã¶ãŒãäœã奜ãããäºæž¬ããŸãã
åºæ¬åå
CFã¯2ã€ã®åºæ¬ååã«åºã¥ããŠåäœããŸãïŒ
- ãŠãŒã¶ãŒã®é¡äŒŒæ§ïŒ éå»ã®è¡åãé¡äŒŒããŠãããŠãŒã¶ãŒã¯ãå°æ¥ã®å奜ãé¡äŒŒããŠããå¯èœæ§ãé«ãã
- ã¢ã€ãã ã®é¡äŒŒæ§ïŒ é¡äŒŒãããŠãŒã¶ãŒã«å¥œãŸããã¢ã€ãã ã¯ãä»ã®é¡äŒŒãããŠãŒã¶ãŒã«ã奜ãŸããå¯èœæ§ãé«ãã
å調ãã£ã«ã¿ãªã³ã°ã®çš®é¡
å調ãã£ã«ã¿ãªã³ã°ã«ã¯ããã€ãã®ããªãšãŒã·ã§ã³ããããããããã«é·æãšçæããããŸãïŒ
ãŠãŒã¶ãŒããŒã¹å調ãã£ã«ã¿ãªã³ã°
ãŠãŒã¶ãŒããŒã¹CFã¯ãéå»ã®ã€ã³ã¿ã©ã¯ã·ã§ã³ã«åºã¥ããŠãã¿ãŒã²ãããŠãŒã¶ãŒã«é¡äŒŒãããŠãŒã¶ãŒãç¹å®ããŸãããããŠããããã®é¡äŒŒãŠãŒã¶ãŒã奜ãã ããã¿ãŒã²ãããŠãŒã¶ãŒããŸã åºäŒã£ãŠããªãã¢ã€ãã ãæšèŠããŸãããã®äžå¿çãªèãæ¹ã¯ã䌌ããããªè¶£å³ãå奜ãæã€ãŠãŒã¶ãŒã®ãè¿åïŒneighborhoodïŒããèŠã€ããããšã§ãã
äŸïŒ ãã©ãžã«åšäœã®ãããŠãŒã¶ãŒããã¹ããªãŒãã³ã°ãã©ãããã©ãŒã ã§éçåç©ãæŽå²ã«é¢ããããã¥ã¡ã³ã¿ãªãŒãé »ç¹ã«èŠèŽããŠãããšããŸãããŠãŒã¶ãŒããŒã¹CFã¯ããã©ãžã«ãæ¥æ¬ãã¢ã¡ãªã«ã«ãããåæ§ã®èŠèŽç¿æ £ãæã€ä»ã®ãŠãŒã¶ãŒãç¹å®ããŸãããããŠã·ã¹ãã ã¯ããããã®é¡äŒŒãŠãŒã¶ãŒã楜ããã ããå ã®ãŠãŒã¶ãŒã¯ãŸã èŠãŠããªãããã¥ã¡ã³ã¿ãªãŒãæšèŠããŸããã¢ã«ãŽãªãºã ã¯è©äŸ¡ãæ£èŠåããå¿ èŠããããããã«ãããäžè¬çã«é«ãã¹ã³ã¢ãä»ãããŠãŒã¶ãŒããããæ§ãããªè©äŸ¡ããããŠãŒã¶ãŒã®æèŠãå§åããªãããã«ããŸãã
ã¢ã«ãŽãªãºã ïŒ
- ã¿ãŒã²ãããŠãŒã¶ãŒãšä»ã®ãã¹ãŠã®ãŠãŒã¶ãŒãšã®é¡äŒŒåºŠãèšç®ããŸããäžè¬çãªé¡äŒŒåºŠææšã«ã¯ä»¥äžã®ãããªãã®ããããŸãïŒ
- ã³ãµã€ã³é¡äŒŒåºŠïŒ 2ã€ã®ãŠãŒã¶ãŒãã¯ãã«ã®ãªãè§ã®ã³ãµã€ã³ã枬å®ããŸãã
- ãã¢ãœã³çžé¢ä¿æ°ïŒ 2人ã®ãŠãŒã¶ãŒã®è©äŸ¡éã®ç·åœ¢çžé¢ã枬å®ããŸãã
- ãžã£ã«ãŒãä¿æ°ïŒ 2人ã®ãŠãŒã¶ãŒãè©äŸ¡ããã¢ã€ãã ã®éåéã®é¡äŒŒåºŠã枬å®ããŸãã
- æãé¡äŒŒããk人ã®ãŠãŒã¶ãŒïŒè¿åïŒãéžæããŸãã
- è¿åã®ãŠãŒã¶ãŒã®è©äŸ¡ãéçŽããŠãã¿ãŒã²ãããŠãŒã¶ãŒã®ã¢ã€ãã ã«å¯Ÿããè©äŸ¡ãäºæž¬ããŸãã
å©ç¹ïŒ å®è£ ãç°¡åã§ãã¿ãŒã²ãããŠãŒã¶ãŒãèæ ®ããªãã£ããããããªãæ°ããã¢ã€ãã ãçºèŠã§ããŸãã
æ¬ ç¹ïŒ å€§èŠæš¡ãªããŒã¿ã»ããã§ã¯ã¹ã±ãŒã©ããªãã£ã®åé¡ã«çŽé¢ããå¯èœæ§ããããŸãïŒãã¹ãŠã®ãŠãŒã¶ãŒãã¢éã®é¡äŒŒåºŠèšç®ã¯èšç®ã³ã¹ããé«ããªãïŒããŸããã³ãŒã«ãã¹ã¿ãŒãåé¡ïŒå±¥æŽãã»ãšãã©ãªãæ°èŠãŠãŒã¶ãŒãžã®æšèŠãå°é£ïŒããããŸãã
ã¢ã€ãã ããŒã¹å調ãã£ã«ã¿ãªã³ã°
ã¢ã€ãã ããŒã¹CFã¯ãã¢ã€ãã éã®é¡äŒŒæ§ã«çŠç¹ãåœãŠãŸããã¿ãŒã²ãããŠãŒã¶ãŒãéå»ã«å¥œãã ã¢ã€ãã ã«é¡äŒŒããã¢ã€ãã ãç¹å®ãããããã®é¡äŒŒã¢ã€ãã ãæšèŠããŸãããã®ã¢ãããŒãã¯ãç¹ã«å€§èŠæš¡ãªããŒã¿ã»ããã«ãããŠãäžè¬çã«ãŠãŒã¶ãŒããŒã¹CFãããå¹ççã§ãããªããªããã¢ã€ãã éã®é¡äŒŒåºŠè¡åã¯ããŠãŒã¶ãŒéã®é¡äŒŒåºŠè¡åãããéåžžå®å®ããŠããããã§ãã
äŸïŒ ã€ã³ãåšäœã®ãŠãŒã¶ãŒãããªã³ã©ã€ã³å°å£²æ¥è ããç¹å®ã®ãã©ã³ãã®ã€ã³ãã®ã¹ãã€ã¹ãã¬ã³ããè³Œå ¥ãããšããŸããã¢ã€ãã ããŒã¹CFã¯ãææãæçã§ã®çšéã䌌ãŠããä»ã®ã¹ãã€ã¹ãã¬ã³ãïŒäŸïŒä»ã®ã€ã³ãã®ã¹ãã€ã¹ãã¬ã³ãããæ±åã¢ãžã¢æçã®åæ§ã®æçã§äœ¿çšããããã¬ã³ããªã©ïŒãç¹å®ããŸãããããŠããããã®é¡äŒŒããã¹ãã€ã¹ãã¬ã³ãããŠãŒã¶ãŒã«æšèŠãããŸãã
ã¢ã«ãŽãªãºã ïŒ
- ãŠãŒã¶ãŒã®è©äŸ¡ã«åºã¥ããŠãåã¢ã€ãã ãšä»ã®ãã¹ãŠã®ã¢ã€ãã ãšã®é¡äŒŒåºŠãèšç®ããŸããäžè¬çãªé¡äŒŒåºŠææšã¯ããŠãŒã¶ãŒããŒã¹CFãšåãã§ãïŒã³ãµã€ã³é¡äŒŒåºŠããã¢ãœã³çžé¢ä¿æ°ããžã£ã«ãŒãä¿æ°ïŒã
- ç¹å®ã®ãŠãŒã¶ãŒã«ã€ããŠããã®ãŠãŒã¶ãŒãã€ã³ã¿ã©ã¯ã·ã§ã³ããã¢ã€ãã ïŒäŸïŒè³Œå ¥ãããé«ãè©äŸ¡ããïŒãç¹å®ããŸãã
- é¡äŒŒããã¢ã€ãã ã®è©äŸ¡ãéçŽããŠããŠãŒã¶ãŒã®æ°ããã¢ã€ãã ã«å¯Ÿããè©äŸ¡ãäºæž¬ããŸãã
å©ç¹ïŒ ãŠãŒã¶ãŒããŒã¹CFãããã¹ã±ãŒã©ãã«ã§ãã³ãŒã«ãã¹ã¿ãŒãåé¡ãžã®å¯Ÿå¿ãåªããŠããïŒæ°èŠãŠãŒã¶ãŒã«ã人æ°ã¢ã€ãã ãæšèŠã§ããïŒããŠãŒã¶ãŒãå€ãã¢ã€ãã ãæ¯èŒçå°ãªãå Žåã«ããã粟床ãé«ããªãåŸåããããŸãã
æ¬ ç¹ïŒ ãŠãŒã¶ãŒã®éå»ã®ã€ã³ã¿ã©ã¯ã·ã§ã³ãšé¡äŒŒããŠããªããæ°ããã¢ã€ãã ãããããªã¢ã€ãã ã®çºèŠã«ã¯ããŸã广çã§ãªãå ŽåããããŸãã
ã¢ãã«ããŒã¹å調ãã£ã«ã¿ãªã³ã°
ã¢ãã«ããŒã¹CFã¯ãæ©æ¢°åŠç¿ã¢ã«ãŽãªãºã ã䜿çšããŠãã€ã³ã¿ã©ã¯ã·ã§ã³ããŒã¿ãããŠãŒã¶ãŒå奜ã®ã¢ãã«ãåŠç¿ããŸãããã®ã¢ãã«ã¯ãæ°ããã¢ã€ãã ã«å¯ŸãããŠãŒã¶ãŒã®è©äŸ¡ãäºæž¬ããããã«äœ¿çšã§ããŸããã¢ãã«ããŒã¹ã®ã¢ãããŒãã¯æè»æ§ããããã¡ã¢ãªããŒã¹ã®ææ³ïŒãŠãŒã¶ãŒããŒã¹ããã³ã¢ã€ãã ããŒã¹CFïŒãããçãªããŒã¿ã»ããã广çã«æ±ãããšãã§ããŸãã
è¡ååè§£ïŒ äººæ°ã®ããã¢ãã«ããŒã¹ã®ææ³ã¯è¡ååè§£ã§ããããã¯ããŠãŒã¶ãŒãšã¢ã€ãã ã®ã€ã³ã¿ã©ã¯ã·ã§ã³è¡åãã2ã€ã®ããäœæ¬¡å ã®è¡åïŒãŠãŒã¶ãŒè¡åãšã¢ã€ãã è¡åïŒã«åè§£ããŸãããããã®è¡åã®å ç©ã¯å ã®ã€ã³ã¿ã©ã¯ã·ã§ã³è¡åãè¿äŒŒããæ¬ æããŠããè©äŸ¡ãäºæž¬ããããšãå¯èœã«ããŸãã
äŸïŒ ã°ããŒãã«ãªæ ç»ã¹ããªãŒãã³ã°ãµãŒãã¹ãæ³åããŠã¿ãŠãã ãããè¡ååè§£ã¯ããŠãŒã¶ãŒã®å奜ïŒäŸïŒã¢ã¯ã·ã§ã³æ ç»ã®å¥œã¿ãå€åœæ ç»ã®å¥œã¿ïŒãã¢ã€ãã ã®ç¹åŸŽïŒäŸïŒãžã£ã³ã«ãç£ç£ã俳åªïŒãè¡šãæœåšçãªç¹åŸŽãåŠç¿ããããã«äœ¿çšã§ããŸããåŠç¿ããç¹åŸŽãåæããããšã§ãã·ã¹ãã ã¯ãŠãŒã¶ãŒã®å奜ã«åã£ãæ ç»ãæšèŠã§ããŸãã
å©ç¹ïŒ çãªããŒã¿ã»ãããæ±ãããšãã§ãããŠãŒã¶ãŒãšã¢ã€ãã éã®è€éãªé¢ä¿ãæããããšãã§ããæ°ããã¢ã€ãã ã®è©äŸ¡ãäºæž¬ããããã«äœ¿çšã§ããŸãã
æ¬ ç¹ïŒ ã¡ã¢ãªããŒã¹ã®ææ³ãããå®è£ ãè€éã§ãã¢ãã«ã®ãã¬ãŒãã³ã°ã«ããå€ãã®èšç®ãªãœãŒã¹ãå¿ èŠã§ãã
æé»çãã£ãŒãããã¯ãšæç€ºçãã£ãŒãããã¯ã®åãæ±ã
å調ãã£ã«ã¿ãªã³ã°ã·ã¹ãã ã¯ã2çš®é¡ã®ãã£ãŒãããã¯ã掻çšã§ããŸãïŒ
- æç€ºçãã£ãŒãããã¯ïŒ è©äŸ¡ïŒäŸïŒ1ïœ5ã€æïŒãã¬ãã¥ãŒã奜ã/å«ããªã©ããŠãŒã¶ãŒã«ãã£ãŠçŽæ¥æäŸããããã®ã
- æé»çãã£ãŒãããã¯ïŒ è³Œå ¥å±¥æŽãé²èЧ履æŽãããŒãžæ»åšæéãã¯ãªãã¯ãªã©ããŠãŒã¶ãŒã®è¡åããæšæž¬ããããã®ã
æç€ºçãã£ãŒãããã¯ã¯äŸ¡å€ããããŸãããããŒã¿ãçã§ãã£ãããåãããã£ããããå¯èœæ§ããããŸãïŒéåžžã«æºè¶³ããŠããããéåžžã«äžæºãªãŠãŒã¶ãŒãè©äŸ¡ãæäŸããå¯èœæ§ãé«ãïŒãäžæ¹ãæé»çãã£ãŒãããã¯ã¯ãã容æã«å ¥æã§ããŸããããã€ãºãå€ãææ§ã§ããå¯èœæ§ããããŸãïŒãŠãŒã¶ãŒãå¿ ãããæ°ã«å ¥ã£ãããã§ã¯ãªããŠãã¢ã€ãã ãã¯ãªãã¯ããããšãããïŒã
æé»çãã£ãŒãããã¯ãæ±ãããã®æè¡ã«ã¯ã以äžã®ãããªãã®ããããŸãïŒ
- æé»çãã£ãŒãããã¯ããã€ããªããŒã¿ãšããŠæ±ãïŒäŸïŒã€ã³ã¿ã©ã¯ã·ã§ã³ããã¯1ããªãã¯0ïŒã
- Bayesian Personalized Ranking (BPR)ãWeighted Matrix Factorizationãªã©ã®æè¡ã䜿çšããŠãæé»çãã£ãŒãããã¯ã®äžç¢ºå®æ§ãèæ ®ã«å ¥ããã
ã³ãŒã«ãã¹ã¿ãŒãåé¡ãžã®å¯ŸåŠ
ã³ãŒã«ãã¹ã¿ãŒãåé¡ãšã¯ãã€ã³ã¿ã©ã¯ã·ã§ã³ããŒã¿ãã»ãšãã©ãªãæ°èŠãŠãŒã¶ãŒãæ°èŠã¢ã€ãã ã«å¯ŸããŠæšèŠãè¡ãéã®èª²é¡ãæããŸããCFã·ã¹ãã ã¯å奜ãäºæž¬ããããã«éå»ã®ã€ã³ã¿ã©ã¯ã·ã§ã³ã«äŸåãããããããã¯é倧ãªåé¡ã§ãã
ã³ãŒã«ãã¹ã¿ãŒãåé¡ã軜æžããããã«ãããã€ãã®æŠç¥ã䜿çšã§ããŸãïŒ
- ã³ã³ãã³ãããŒã¹ãã£ã«ã¿ãªã³ã°ïŒ ã¢ã€ãã ã®ç¹æ§ïŒäŸïŒãžã£ã³ã«ã説æãã¿ã°ïŒã掻çšããŠãåæã®æšèŠãè¡ããŸããäŸãã°ãæ°èŠãŠãŒã¶ãŒãSFã«èå³ã瀺ããå Žåã人æ°ã®SFå°èª¬ãæ ç»ãæšèŠããŸãã
- 人æ°ããŒã¹ã®æšèŠïŒ æ°èŠãŠãŒã¶ãŒã«æã人æ°ã®ããã¢ã€ãã ãæšèŠããŸããããã«ãããåºçºç¹ãæäŸããã·ã¹ãã ãã€ã³ã¿ã©ã¯ã·ã§ã³ããŒã¿ãåéã§ããããã«ãªããŸãã
- ãã€ããªããã¢ãããŒãïŒ CFããã³ã³ãã³ãããŒã¹ãã£ã«ã¿ãªã³ã°ãç¥èããŒã¹ã·ã¹ãã ãªã©ãä»ã®æšèŠæè¡ãšçµã¿åãããŸãã
- åæèšå®ã®å奜ãå°ããïŒ æ°èŠãŠãŒã¶ãŒã«ãåæã®å奜ïŒäŸïŒå¥œããªãžã£ã³ã«ãéžæããããããã€ãã®ã¢ã€ãã ãè©äŸ¡ãããããïŒãæäŸããããä¿ããŸãã
å調ãã£ã«ã¿ãªã³ã°ã®è©äŸ¡ææš
å調ãã£ã«ã¿ãªã³ã°ã·ã¹ãã ã®ããã©ãŒãã³ã¹ãè©äŸ¡ããããšã¯ããã®æå¹æ§ã確ä¿ããããã«äžå¯æ¬ ã§ããäžè¬çãªè©äŸ¡ææšã«ã¯ã以äžã®ãããªãã®ããããŸãïŒ
- é©åç (Precision) ãšåçŸç (Recall)ïŒ æšèŠã®æ£ç¢ºããæž¬å®ããŸããé©åçã¯æšèŠãããã¢ã€ãã ã®ãã¡é¢é£æ§ã®ãããã®ã®å²åããåçŸçã¯é¢é£æ§ã®ããã¢ã€ãã ã®ãã¡æšèŠããããã®ã®å²åãæž¬å®ããŸãã
- å¹³åé©åç (MAP)ïŒ ãã¹ãŠã®ãŠãŒã¶ãŒã«ãããé©åçã¹ã³ã¢ã®å¹³åã§ãã
- æ£èŠåå²åŒçޝç©å©åŸ (NDCG)ïŒ ãªã¹ãå ã®é¢é£ã¢ã€ãã ã®äœçœ®ãèæ ®ããŠãæšèŠã®ã©ã³ãã³ã°åè³ªãæž¬å®ããŸãã
- äºä¹å¹³åå¹³æ¹æ ¹èª€å·® (RMSE)ïŒ äºæž¬è©äŸ¡ãšå®éã®è©äŸ¡ãšã®å·®ã枬å®ããŸãïŒè©äŸ¡äºæž¬ã¿ã¹ã¯ã§äœ¿çšïŒã
- å¹³å絶察誀差 (MAE)ïŒ äºæž¬è©äŸ¡ãšå®éã®è©äŸ¡ãšã®å·®ã枬å®ããããäžã€ã®ææšã§ãã
ç¹å®ã®ã¢ããªã±ãŒã·ã§ã³ãšäœ¿çšãããŠããããŒã¿ã®çš®é¡ã«é©ããè©äŸ¡ææšãéžæããããšãéèŠã§ãã
å調ãã£ã«ã¿ãªã³ã°ã®å¿çš
å調ãã£ã«ã¿ãªã³ã°ã¯ããŠãŒã¶ãŒäœéšãããŒãœãã©ã€ãºããããžãã¹ææãåäžãããããã«ãããŸããŸãªæ¥çã§åºã䜿çšãããŠããŸãïŒ
- Eã³ããŒã¹ïŒ 顧客ã®éå»ã®è³Œå ¥å±¥æŽãé²èЧ履æŽãé¡äŒŒãã顧客ã®å奜ã«åºã¥ããŠååãæšèŠããŸããäŸãã°ãAmazonã¯CFãåºç¯ã«å©çšããŠãããªãã奜ããããªååãææ¡ããŠããŸãã
- ãšã³ã¿ãŒãã€ã¡ã³ãïŒ ãŠãŒã¶ãŒã®èŠèŽå±¥æŽãèŽåå±¥æŽã«åºã¥ããŠãæ ç»ããã¬ãçªçµã鳿¥œãæšèŠããŸããNetflixãSpotifyãYouTubeã¯ãã¹ãŠCFã«å€§ããäŸåããŠããŸãã
- ãœãŒã·ã£ã«ã¡ãã£ã¢ïŒ ãŠãŒã¶ãŒã®ã€ãªãããèå³ã«åºã¥ããŠãå人ãã°ã«ãŒããã³ã³ãã³ããæšèŠããŸããFacebookãLinkedInã¯ãããã®ç®çã§CFãå©çšããŠããŸãã
- ãã¥ãŒã¹ã¢ã°ãªã²ãŒã¿ãŒïŒ ãŠãŒã¶ãŒã®é²èЧ履æŽãèå³ã«åºã¥ããŠããã¥ãŒã¹èšäºãã¹ããŒãªãŒãæšèŠããŸããGoogleãã¥ãŒã¹ã¯CFã䜿çšããŠãã¥ãŒã¹ãã£ãŒããããŒãœãã©ã€ãºããŠããŸãã
- æè²ïŒ åŠçã®åŠç¿ç®æšãé²æç¶æ³ã«åºã¥ããŠãã³ãŒã¹ãææãã¡ã³ã¿ãŒãæšèŠããŸãã
ãã€ããªããæšèŠã·ã¹ãã
å€ãã®å®äžçã®ã¢ããªã±ãŒã·ã§ã³ã§ã¯ãåäžã®æšèŠæè¡ã ãã§ã¯æé©ãªããã©ãŒãã³ã¹ãéæããã®ã«ååã§ã¯ãããŸããããã€ããªããæšèŠã·ã¹ãã ã¯ãè€æ°ã®æè¡ãçµã¿åãããŠãããããã®é·æã掻çšããçæãå æããŸããäŸãã°ããã€ããªããã·ã¹ãã ã¯å調ãã£ã«ã¿ãªã³ã°ãšã³ã³ãã³ãããŒã¹ãã£ã«ã¿ãªã³ã°ãçµã¿åãããŠãã³ãŒã«ãã¹ã¿ãŒãåé¡ã«å¯ŸåŠããæšèŠã®ç²ŸåºŠãåäžãããããšããããŸãã
課é¡ãšèæ ®äºé
å調ãã£ã«ã¿ãªã³ã°ã¯åŒ·åãªæè¡ã§ããããã®éçãšæœåšçãªèª²é¡ãèªèããããšãéèŠã§ãïŒ
- ããŒã¿ã®çæ§ïŒ å®äžçã®ããŒã¿ã»ããã¯ããŠãŒã¶ãŒãšã¢ã€ãã ã®ã€ã³ã¿ã©ã¯ã·ã§ã³ããŒã¿ãçã§ããããšãå€ããé¡äŒŒãããŠãŒã¶ãŒãã¢ã€ãã ãèŠã€ããããšãå°é£ã§ãã
- ã¹ã±ãŒã©ããªãã£ïŒ å€§èŠæš¡ãªããŒã¿ã»ããã§ã¯ããã¹ãŠã®ãŠãŒã¶ãŒãã¢ãŸãã¯ã¢ã€ãã ãã¢éã®é¡äŒŒåºŠãèšç®ããããšã¯èšç®ã³ã¹ããé«ããªãå¯èœæ§ããããŸãã
- ã³ãŒã«ãã¹ã¿ãŒãåé¡ïŒ åè¿°ã®éããã€ã³ã¿ã©ã¯ã·ã§ã³ããŒã¿ãã»ãšãã©ãªãæ°èŠãŠãŒã¶ãŒãæ°èŠã¢ã€ãã ãžã®æšèŠã¯èª²é¡ã§ãã
- ãã£ã«ã¿ãŒããã«ïŒ CFã·ã¹ãã ã¯ãæ¢åã®å奜ã匷åãã倿§ãªèŠç¹ãžã®æ¥è§Šãå¶éããããšã§ããã£ã«ã¿ãŒããã«ãçã¿åºãå¯èœæ§ããããŸãã
- ãã©ã€ãã·ãŒã®æžå¿µïŒ ãŠãŒã¶ãŒããŒã¿ã®åéãšåæã¯ãã©ã€ãã·ãŒã«é¢ããæžå¿µãåŒãèµ·ãããããŒã¿ã責任ãæã£ãŠå«ççã«æ±ãããããšãä¿èšŒããããšãéèŠã§ãã
- 人æ°ãã€ã¢ã¹ïŒ 人æ°ã®ããã¢ã€ãã ãããé »ç¹ã«æšèŠãããåŸåãããããå¯ããè ã¯ãŸããŸãå¯ãã广ã«ã€ãªãããŸãã
å調ãã£ã«ã¿ãªã³ã°ã®å°æ¥åå
å調ãã£ã«ã¿ãªã³ã°ã®åéã¯çµ¶ããé²åããŠãããæ¢åææ³ã®èª²é¡ãéçã«å¯ŸåŠããããã®æ°ããæè¡ãã¢ãããŒããéçºãããŠããŸããäž»ãªãã¬ã³ãã«ã¯ä»¥äžã®ãããªãã®ããããŸãïŒ
- ãã£ãŒãã©ãŒãã³ã°ïŒ 深局ãã¥ãŒã©ã«ãããã¯ãŒã¯ã䜿çšããŠããŠãŒã¶ãŒã®å奜ãã¢ã€ãã ã®ç¹åŸŽã®ããè€éã§åŸ®åŠãªè¡šçŸãåŠç¿ããŸãã
- ã³ã³ããã¹ãã¢ãŠã§ã¢æšèŠïŒ æéãå Žæãããã€ã¹ãªã©ã®ã³ã³ããã¹ãæ å ±ãæšèŠããã»ã¹ã«çµã¿èŸŒã¿ãŸãã
- ã°ã©ãããŒã¹æšèŠïŒ ãŠãŒã¶ãŒãšã¢ã€ãã ã®ã€ã³ã¿ã©ã¯ã·ã§ã³ãã°ã©ããšããŠè¡šçŸããã°ã©ãã¢ã«ãŽãªãºã ã䜿çšããŠé¢é£æ§ã®é«ãæšèŠãèŠã€ããŸãã
- 説æå¯èœãªAI (XAI)ïŒ ç¹å®ã®ã¢ã€ãã ããªãæšèŠãããã®ãã説æã§ããæšèŠã·ã¹ãã ãéçºããŸãã
- å ¬å¹³æ§ãšãã€ã¢ã¹ç·©åïŒ æšèŠã·ã¹ãã ã®ãã€ã¢ã¹ãç·©åãããã¹ãŠã®ãŠãŒã¶ãŒã«å¯Ÿããå ¬å¹³æ§ã確ä¿ããããã®æè¡ãéçºããŸãã
çµè«
å調ãã£ã«ã¿ãªã³ã°ã¯ãå¹ åºãã¢ããªã±ãŒã·ã§ã³ã§ãŠãŒã¶ãŒäœéšãããŒãœãã©ã€ãºãããšã³ã²ãŒãžã¡ã³ããåäžãããããã®åŒ·åãªæè¡ã§ããCFã®ååãæè¡ã課é¡ãçè§£ããããšã§ãäŒæ¥ãçµç¹ã¯ãã®æè¡ã掻çšããŠããŠãŒã¶ãŒã«ããé¢é£æ§ã®é«ãæºè¶³ã®ããäœéšãæäŸã§ããŸããããŒã¿ãå¢ãç¶ããããŒãœãã©ã€ãºãããäœéšã«å¯ŸãããŠãŒã¶ãŒã®æåŸ ãããã«é«ãŸãäžã§ãå調ãã£ã«ã¿ãªã³ã°ã¯æ å ±åæä»£ãä¹ãåãããã®éèŠãªããŒã«ã§ããç¶ããã§ãããã