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[Journal club] OccamNets: Mitigating Dataset Bi...
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Semantic Machine Intelligence Lab., Keio Univ.
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July 28, 2023
Technology
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[Journal club] OccamNets: Mitigating Dataset Bias by Favoring Simpler Hypotheses
Semantic Machine Intelligence Lab., Keio Univ.
PRO
July 28, 2023
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Transcript
ð ðððð ðâððð ð¡âð1, ðŸð¢ð âðð ðŸðððð2, ððð ð¶âððð ð¡ððâðð ðŸðððð1.3 1ð ððâðð ð¡ðð ðŒðð ð¡ðð¡ð¢ð¡ð ðð
ðððâððððððŠ, 2ðŽðððð ð ðð ððððâ, 3ðððð£ððð ðð¡ðŠ ðð ð ððâðð ð¡ðð ECCV 2022 OccamNets: Mitigating Dataset Bias by Favoring Simpler Hypotheses æ ¶æçŸ©å¡Ÿå€§åŠ ææµŠåæç 究宀 å¹³éæ ä¹å©
2 ⢠ããŒã¿ã»ãããã€ã¢ã¹ãç䌌çžé¢ã¯ã¢ãã«ã®æ±åæ§èœã«æªåœ±é¿ ⢠äžè¬çãªã¢ãã«ã§ã¯ããã¹ãŠã®ãµã³ãã«ã«ã€ããŠåãæ·±ãã§æšè« â ãµã³ãã«ã«ãã£ãŠã¯äžå¿ èŠãªå±€ãååš â äžå¿ èŠãªå±€ã¯ããŒã¿ã»ãããã€ã¢ã¹ã«å¯Ÿããæ±åæ§èœãäžãã â¢
ããŒã¿ã»ãããã€ã¢ã¹ãšã¯ â ããŒã¿ã»ããã«æšè«ã«æ¬æ¥ç¡é¢ä¿ãªç¹åŸŽãå«ãŸããããš äŸ) ã¯ã©ã¹åé¡ããŒã¿ã»ããã«ãããŠè¹ã®ç»åããã¹ãŠæ°Žäžã®è¹ã§ããå Žå èæ¯: ããŒã¿ã»ãããã€ã¢ã¹ã«ããæ±åæ§èœã®äœäž Biased MNIST [Shrestha+, WACV22]
3 é¢é£ç ç©¶: æ¢åææ³ ç¹åŸŽãåé¡ç [Kim+, CVPR19] æ£ååãšæµå¯Ÿçãããã¯ãŒã¯ãçšããã¢ãã«ã«ããããŒã¿ã»ãã ãã€ã¢ã¹ã«å¯Ÿå¿ ããŒã¿ã»ãããã€ã¢ã¹ã®èŠå ãããã£ãŠããå¿ èŠããã [Wolczyk+,
NeurIPS21] é£åºŠã®äœããµã³ãã«ã«ã€ããŠæ©æçµäºãè¡ãããšã§æšè«æéãåæž ããŒã¿ã»ãããã€ã¢ã¹ã«å¯Ÿå¿ã§ããŠããªã [Kim+, CVPR19] [Wolczyk+, NeurIPS21]
4 ææ¡ææ³: OccamNets æ¢åã®CNN ã¢ãã«ã«æ¥ç¶ããã¢ãžã¥ãŒã«ãææ¡ æ°èŠæ§ ⢠Early exit â
Exit Module ãå°å ¥ â CNNã®åå±€ã«Exit Moduleãæ¥ç¶ â Exit Module ã§æšè«ãæ©æçµäºã倿 ⢠Visual Constraint â ãªãã«ã ã®ååã«åã â å°ãªãé åããæšè«ãå¯èœã«ãªã ããã«åŠç¿
5 äž»èŠã¢ãžã¥ãŒã« Suppressed CAM Predictor, Output Predictor, Exit Decision Gate
Exit Module: 3ã€ã®ã¢ãžã¥ãŒã«ããæ§æ
6 Suppressed CAM Predictor: activation mapã®çæ GTãžå¯äž å šç»çŽ ã®GTãžã®å¯äžã®å¹³å : KL-divergence
loss â¢ å ¥å: äžéç¹åŸŽé ⢠åºå: class activation map ⢠CAM [Zhou+, CVPR 16] ã«ããclass activation mapãçæ â æ³šç®é åãçããããã«åŠç¿ ⢠Suppressed CAM Predictorã®æå€±: â æšè«ãžã®å¯äžãå°ããç»çŽ ã®éã¿ãæå¶ : ã¯ã©ã¹æ°
7 ⢠class activation map ãçšããŠæšè« â class activation map
ã«Global Average Poolingãé©çš Output Predictor: class activation mapããæšè« â¢ å ¥å: class activation map ⢠åºå: æšè«ã¯ã©ã¹ ⢠Output Predictor ã®æå€±: â åã®ãããã¯ã§ç²ŸåºŠãäœããµã³ãã«ã® éã¿ã倧ãããªãããã«åŠç¿ j-1çªç®ãããã¯ã® Exit decision score æšè«ã¯ã©ã¹ GTã¯ã©ã¹
8 â¢ æ©æçµäºã®æ¯éã倿 â å ¥å: äžéç¹åŸŽé â åºå: Exit decision
score ⢠Exit decision score â ReLUå±€+Sigmoidå±€ã§èšç® â 0.5以äžãªãçµäº â 0.5æªæºãªã次ã®ãããã¯ã«ç¶ã Exit Decision Gate: æ©æçµäºã倿 Exit decision score ⢠Exit decision Gateã®æå€±: â æšè«ãæ£ããå Žåã«Exit decision scoreã 倧ãããªãããã«åŠç¿
9 ⢠Biased MNIST â MNISTã«ããã¹ãã®è²ãèæ¯ã®æãç¡é§æžã ãªã©ãæšè«ã«ç¡é¢ä¿ãªèŠçŽ ãä»äž ⢠COCO-on-Places [Ahmed+,
ICLR21] â ç©äœãç¡é¢ä¿ãªèæ¯ã«é 眮 ⢠BAR [Nam+, NeurIPS20] â åã察象ã«å¯ŸããŠèšç·ŽããŒã¿ãšãã¹ãããŒã¿ ã§èæ¯ã®ç°ãªãããŒã¿ã»ãã å®éšèšå®: ããŒã¿ã»ãã Biased MNIST COCO-on-Places BAR[Nam+, NeurIPS20]
10 å®éççµæ: Biased MNISTã®ç²ŸåºŠã倧ããäžåã ⢠Biased MNIST ããã³ COCO-on-Places ã§æ¢åææ³ãäžåãæ§èœ
⢠BARã§æ¢åææ³ã«å¹æµããæ§èœ â¢ æ§é 倿Žã®ã¿ã§ããŒã¿ã»ãããã€ã¢ã¹ã®åœ±é¿ã軜æžã§ããããšãç¢ºèª [Pezeshki+, NeurIPS20] [Sagawa+, ICLR20] [Ahmed+, ICLR21]
11 å®éççµæ: Biased MNISTã®ç²ŸåºŠã倧ããäžåã ⢠Biased MNIST ããã³ COCO-on-Places ã§æ¢åææ³ãäžåãæ§èœ
⢠BARã§æ¢åææ³ã«å¹æµããæ§èœ â¢ æ§é 倿Žã®ã¿ã§ããŒã¿ã»ãããã€ã¢ã¹ã®åœ±é¿ã軜æžã§ããããšãç¢ºèª [Pezeshki+, NeurIPS20] Shrestha [Sagawa+, ICLR20] [Ahmed+, ICLR21] +13.9 +0.7
12 å®éççµæ: Biased MNISTã®ç²ŸåºŠã倧ããäžåã ⢠Biased MNIST ããã³ COCO-on-Places ã§æ¢åææ³ãäžåãæ§èœ
⢠BARã§æ¢åææ³ã«å¹æµããæ§èœ â¢ æ§é 倿Žã®ã¿ã§ããŒã¿ã»ãããã€ã¢ã¹ã®åœ±é¿ã軜æžã§ããããšãç¢ºèª [Pezeshki+, NeurIPS20] [Sagawa+, ICLR20] [Ahmed+, ICLR21]
13 å®éççµæ: Biased MNISTã®ç²ŸåºŠã倧ããäžåã ⢠Biased MNIST ããã³ COCO-on-Places ã§æ¢åææ³ãäžåãæ§èœ
⢠BARã§æ¢åææ³ã«å¹æµããæ§èœ â¢ æ§é 倿Žã®ã¿ã§ããŒã¿ã»ãããã€ã¢ã¹ã®åœ±é¿ã軜æžã§ããããšãç¢ºèª [Pezeshki+, NeurIPS20] [Sagawa+, ICLR20] [Ahmed+, ICLR21]
14 ⢠æ¢åææ³ã«Grad-CAM [Selvaraju+, ICCV 17] ãé©çšããæ³šç®é åãå¯èŠå 宿§ççµæ: é©åãªé åã«æ³šç®
15 ⢠æ¢åææ³ã«Grad-CAM [Selvaraju+, ICCV 17] ãé©çšããæ³šç®é åãå¯èŠå 宿§ççµæ: é©åãªé åã«æ³šç® ç¡é§æžãä»è¿ã«æ³šç®
16 ⢠æ¢åææ³ã«Grad-CAM [Selvaraju+, ICCV 17] ãé©çšããæ³šç®é åãå¯èŠå 宿§ççµæ: é©åãªé åã«æ³šç® é©åãªé åã«æ³šç®
17 ⢠æ¢åææ³ã«Grad-CAM [Selvaraju+, ICCV 17] ãé©çšããæ³šç®é åãå¯èŠå 宿§ççµæ: é©åãªé åã«æ³šç® 泚ç®ç®æãäžé©å
泚ç®é åãåºããã
18 ⢠æ¢åææ³ã«Grad-CAM [Selvaraju+, ICCV 17] ãé©çšããæ³šç®é åãå¯èŠå 宿§ççµæ: é©åãªé åã«æ³šç® é©åãªéãããé åã«æ³šç®
19 Ablation Study: åæ§é ã®æå¹æ§ãæ€èšŒ
20 Ablation Study: åæ§é ã®æå¹æ§ãæ€èšŒ
21 Ablation Study: åæ§é ã®æå¹æ§ãæ€èšŒ
22 Ablation Study: åæ§é ã®æå¹æ§ãæ€èšŒ â¢ æ©æçµäºããªãå Žåãæ§èœãäœäž ⢠CAM suppression loss
ã䜿çšããªãã£ãå Žåãæ§èœãäœäž ⢠Output Predictorã«ãããŠç²ŸåºŠãäœããšå€æããããµã³ãã«ã®éã¿ã倧ãããªãå Žåã Biased MNISTã®æ§èœãäžæ â Biased MNIST ã«ãããŠå€ãã®ãµã³ãã«ãæ©ã段éã§æ©æçµäº â æ·±ãããŒãã§ååãªåŠç¿ãã§ããªãã£ãå¯èœæ§
23 ⢠attention map ãäžé©å ⢠GTã9ã®ãµã³ãã«ã0ãšäºæž¬ â¢ èæ¯ã®ãã€ã¢ã¹ã匷ããµã³ãã«ã§ã é©åã«æ³šç®
Biased MNISTã«ããã远詊 (å·Š: æåäŸãå³: 倱æäŸ) original OccamNet äºæž¬: 0 OccamNet original äºæž¬: 7 original OccamNet äºæž¬: 7
24 ⢠attention map ãäžé©å ⢠GTã9ã®ãµã³ãã«ã0ãšäºæž¬ â¢ èæ¯ã®ãã€ã¢ã¹ã匷ããµã³ãã«ã§ã é©åã«æ³šç®
Biased MNISTã«ããã远詊 (å·Š: æåäŸãå³: 倱æäŸ) original OccamNet äºæž¬: 0 OccamNet original äºæž¬: 7 original OccamNet äºæž¬: 7
25 ⢠attention map ãäžé©å ⢠ã©ãã«ã9ã®ãµã³ãã«ã0ãšäºæž¬ â¢ èæ¯ã®ãã€ã¢ã¹ã匷ããµã³ãã«ã§ã é©åã«æ³šç®
Biased MNISTã«ããã远詊 (å·Š: æåäŸãå³: 倱æäŸ) original OccamNet äºæž¬: 0 OccamNet original äºæž¬: 7 original OccamNet äºæž¬: 7 ãïŒãéšåä»è¿ã« 泚ç®
26 â¢ èæ¯ïŒ â ããŒã¿ã»ãããã€ã¢ã¹ãç䌌çžé¢ãæ±åæ§èœã«æªåœ±é¿ãäžããããšããã â¢ ææ¡ææ³ïŒOccamNets â ãµã³ãã«ããšã«å±€ã®æ©æçµäºãè¡ã â
åå±€ã§æšè«ãäžååãšå€æããããµã³ãã«ã®ã¿æ¬¡ã®å±€ã«é²ã â¢ çµæïŒ â ãã€ã¢ã¹ã®ããããŒã¿ã»ããã§æ¢åææ³ãäžåãæ§èœ â æ¢åææ³ãšçµã¿åãããããšã§æ§èœãããåäž ãŸãšã
27 Appendix
28 ⢠æ¢åææ³ãšçµã¿åãããããšã«ãã£ãŠãã¹ãŠã®ææ³ã§æ§èœãåäž â¢ Biased MNIST ã§ç¹ã«å€§ããæ§èœãåäž å®éççµæ: æ¢åææ³ãšã®çµã¿åãã§ç²ŸåºŠãåäž æ¢åææ³ãšçµã¿åãããçµæ
29 ⢠æ¢åææ³ãšçµã¿åãããããšã«ãã£ãŠãã¹ãŠã®ææ³ã§æ§èœãåäž â¢ Biased MNIST ã§ç¹ã«å€§ããæ§èœãåäž å®éççµæ: æ¢åææ³ãšã®çµã¿åãã§ç²ŸåºŠãåäž æ¢åææ³ãšçµã¿åãããçµæ
Robik Shrestha
30 â¢ æ©æçµäºããªãå Žåãæ§èœãäœäž ⢠CAM suppression loss ã䜿çšããªãã£ãå Žåãæ§èœãäœäž ⢠Output
Predictorã«ãããŠç²ŸåºŠãäœããšå€æããããµã³ãã«ã®éã¿ã倧ãããªãå Žåã Biased MNISTã®æ§èœãäžæ â Biased MNIST ã«ãããŠå€ãã®ãµã³ãã«ãæ©ã段éã§æ©æçµäº â æ·±ãããŒãã§ååãªåŠç¿ãã§ããªãã£ãå¯èœæ§ Ablation Study: åæ§é ã®æå¹æ§ãæ€èšŒ
31 â¢ æ©æçµäºããªãå Žåãæ§èœãäœäž ⢠CAM suppression loss ã䜿çšããªãã£ãå Žåãæ§èœãäœäž ⢠Output
Predictorã«ãããŠç²ŸåºŠãäœããšå€æããããµã³ãã«ã®éã¿ã倧ãããªãå Žåã Biased MNISTã®æ§èœãäžæ â Biased MNIST ã«ãããŠå€ãã®ãµã³ãã«ãæ©ã段éã§æ©æçµäº â æ·±ãããŒãã§ååãªåŠç¿ãã§ããªãã£ãå¯èœæ§ Ablation Study: åæ§é ã®æå¹æ§ãæ€èšŒ
32 â¢ æ©æçµäºããªãå Žåãæ§èœãäœäž ⢠CAM suppression loss ã䜿çšããªãã£ãå Žåãæ§èœãäœäž ⢠Output
Predictorã«ãããŠç²ŸåºŠãäœããšå€æããããµã³ãã«ã®éã¿ã倧ãããªãå Žåã Biased MNISTã®æ§èœãäžæ â Biased MNIST ã«ãããŠå€ãã®ãµã³ãã«ãæ©ã段éã§æ©æçµäº â æ·±ãããŒãã§ååãªåŠç¿ãã§ããªãã£ãå¯èœæ§ Ablation Study: åæ§é ã®æå¹æ§ãæ€èšŒ
33 â¢ æ©æçµäºããªãå Žåãæ§èœãäœäž ⢠CAM suppression loss ã䜿çšããªãã£ãå Žåãæ§èœãäœäž ⢠Output
Predictorã«ãããŠç²ŸåºŠãäœããšå€æããããµã³ãã«ã®éã¿ã倧ãããªãå Žåã Biased MNISTã®ç²ŸåºŠãäžæ â Biased MNIST ã«ãããŠå€ãã®ãµã³ãã«ãæ©ã段éã§æ©æçµäº â æ·±ãããŒãã§ååãªåŠç¿ãã§ããªãã£ãå¯èœæ§ Ablation Study: åæ§é ã®æå¹æ§ãæ€èšŒ
34 â¢ æ©æçµäºããªãå Žåãæ§èœãäœäž ⢠CAM suppression loss ã䜿çšããªãã£ãå Žåãæ§èœãäœäž ⢠Output
Predictorã«ãããŠç²ŸåºŠãäœããšå€æããããµã³ãã«ã®éã¿ã倧ãããªãå Žåã Biased MNISTã®ç²ŸåºŠãäžæ â Biased MNIST ã«ãããŠå€ãã®ãµã³ãã«ãæ©ã段éã§æ©æçµäº â æ·±ãããŒãã§ååãªåŠç¿ãã§ããªãã£ãå¯èœæ§ Ablation Study: åæ§é ã®æå¹æ§ãæ€èšŒ
35 â¢ æ©æçµäºããªãå Žåãæ§èœãäœäž ⢠CAM suppression loss ã䜿çšããªãã£ãå Žåãæ§èœãäœäž ⢠Output
Predictorã«ãããŠç²ŸåºŠãäœããšå€æããããµã³ãã«ã®éã¿ã倧ãããªãå Žåã Biased MNISTã®æ§èœãäžæ â Biased MNIST ã«ãããŠå€ãã®ãµã³ãã«ãæ©ã段éã§æ©æçµäº â æ·±ãããŒãã§ååãªåŠç¿ãã§ããªãã£ãå¯èœæ§ Ablation Study: åæ§é ã®æå¹æ§ãæ€èšŒ
36 Appendix: æå€±é¢æ° Output Predictor Suppressed CAM Predictor Exit Decision
Gate ⢠åã¢ãžã¥ãŒã«ã®æå€±ã®åèšãå šäœã®æå€±é¢æ°ãšãã : ãã€ããŒãã©ã¡ãŒã¿