{ "part_a_large_provenance_verification": { "confirmed_by_code": { "brightness_threshold_default": 0.4, "class_ratio_default": 0.2, "duration_stratification": "np.quantile(durations, [0.33, 0.66]) after class-balanced stage", "event_enrichment_default": "int(len(selected_cls) * event_ratio), event_ratio default 0.1", "event_friendly_definition": "any keyword in lower-cased captions OR first_frame_mean(video_path) < brightness_threshold", "event_friendly_keywords_default": [ "run", "fast", "sprint", "night", "dark", "slow-motion" ], "minimum_per_class_rule": "max(5, int(class_ratio * class_count)) at class-balanced initial stage", "seed_default": 2025, "train_validation_merge_before_sampling": true }, "confirmed_by_data": { "candidate_pool_classes": 200, "candidate_pool_videos": 14926, "class_balanced_stage_reproduced_classes": 200, "class_balanced_stage_reproduced_videos": 2908, "final_large_classes_below_initial_min_rule_count": 54, "final_large_classes_below_initial_min_rule_examples": [ { "candidate_count": 76, "class": "Swimming", "delta_vs_initial_k": -9, "initial_rule_k": 15, "large_count": 6 }, { "candidate_count": 72, "class": "Shaving", "delta_vs_initial_k": -8, "initial_rule_k": 14, "large_count": 6 }, { "candidate_count": 103, "class": "Baton twirling", "delta_vs_initial_k": -7, "initial_rule_k": 20, "large_count": 13 }, { "candidate_count": 70, "class": "Cleaning windows", "delta_vs_initial_k": -6, "initial_rule_k": 14, "large_count": 8 }, { "candidate_count": 78, "class": "Shoveling snow", "delta_vs_initial_k": -6, "initial_rule_k": 15, "large_count": 9 }, { "candidate_count": 70, "class": "Table soccer", "delta_vs_initial_k": -6, "initial_rule_k": 14, "large_count": 8 }, { "candidate_count": 73, "class": "Archery", "delta_vs_initial_k": -5, "initial_rule_k": 14, "large_count": 9 }, { "candidate_count": 68, "class": "Clipping cat claws", "delta_vs_initial_k": -5, "initial_rule_k": 13, "large_count": 8 }, { "candidate_count": 63, "class": "Volleyball", "delta_vs_initial_k": -5, "initial_rule_k": 12, "large_count": 7 }, { "candidate_count": 90, "class": "Clean and jerk", "delta_vs_initial_k": -4, "initial_rule_k": 18, "large_count": 14 } ], "large_bucket_counts_using_original_sample_subset_caption_quantiles": { "long": 1126, "medium": 1059, "short": 1078 }, "large_bucket_counts_using_release_src_fmt_dur_quantiles": { "long": 1110, "medium": 1076, "short": 1077 }, "large_classes": 200, "large_event_flags_consistent_with_keyword_or_dark_fields": true, "large_event_friendly_ratio": 0.653079987741, "large_matches_original_subset_list": true, "large_split_counts": { "train": 2316, "validation": 947 }, "length_stage_reproduced_classes": 200, "length_stage_reproduced_videos": 2888, "sample_subset_duration_quantiles_seconds_caption_metadata": { "q33": 76.3062, "q66": 151.3234 } }, "deviations_or_historical_inconsistencies": [ { "affected_class_count": 54, "all_affected_classes": [ { "candidate_count": 73, "class": "Archery", "delta_vs_initial_k": -5, "initial_rule_k": 14, "large_count": 9 }, { "candidate_count": 99, "class": "Arm wrestling", "delta_vs_initial_k": -1, "initial_rule_k": 19, "large_count": 18 }, { "candidate_count": 103, "class": "Baton twirling", "delta_vs_initial_k": -7, "initial_rule_k": 20, "large_count": 13 }, { "candidate_count": 78, "class": "Beer pong", "delta_vs_initial_k": -3, "initial_rule_k": 15, "large_count": 12 }, { "candidate_count": 63, "class": "Belly dance", "delta_vs_initial_k": -1, "initial_rule_k": 12, "large_count": 11 }, { "candidate_count": 73, "class": "Braiding hair", "delta_vs_initial_k": -1, "initial_rule_k": 14, "large_count": 13 }, { "candidate_count": 62, "class": "Bungee jumping", "delta_vs_initial_k": -2, "initial_rule_k": 12, "large_count": 10 }, { "candidate_count": 90, "class": "Clean and jerk", "delta_vs_initial_k": -4, "initial_rule_k": 18, "large_count": 14 }, { "candidate_count": 53, "class": "Cleaning sink", "delta_vs_initial_k": -2, "initial_rule_k": 10, "large_count": 8 }, { "candidate_count": 70, "class": "Cleaning windows", "delta_vs_initial_k": -6, "initial_rule_k": 14, "large_count": 8 }, { "candidate_count": 68, "class": "Clipping cat claws", "delta_vs_initial_k": -5, "initial_rule_k": 13, "large_count": 8 }, { "candidate_count": 76, "class": "Cumbia", "delta_vs_initial_k": -3, "initial_rule_k": 15, "large_count": 12 }, { "candidate_count": 61, "class": "Decorating the Christmas tree", "delta_vs_initial_k": -3, "initial_rule_k": 12, "large_count": 9 }, { "candidate_count": 70, "class": "Drinking coffee", "delta_vs_initial_k": -1, "initial_rule_k": 14, "large_count": 13 }, { "candidate_count": 78, "class": "Drum corps", "delta_vs_initial_k": -3, "initial_rule_k": 15, "large_count": 12 }, { "candidate_count": 72, "class": "Fixing bicycle", "delta_vs_initial_k": -2, "initial_rule_k": 14, "large_count": 12 }, { "candidate_count": 77, "class": "Fun sliding down", "delta_vs_initial_k": -3, "initial_rule_k": 15, "large_count": 12 }, { "candidate_count": 67, "class": "Getting a piercing", "delta_vs_initial_k": -1, "initial_rule_k": 13, "large_count": 12 }, { "candidate_count": 76, "class": "Grooming dog", "delta_vs_initial_k": -4, "initial_rule_k": 15, "large_count": 11 }, { "candidate_count": 63, "class": "Grooming horse", "delta_vs_initial_k": -3, "initial_rule_k": 12, "large_count": 9 }, { "candidate_count": 70, "class": "Having an ice cream", "delta_vs_initial_k": -4, "initial_rule_k": 14, "large_count": 10 }, { "candidate_count": 95, "class": "Hitting a pinata", "delta_vs_initial_k": -2, "initial_rule_k": 19, "large_count": 17 }, { "candidate_count": 74, "class": "Hula hoop", "delta_vs_initial_k": -4, "initial_rule_k": 14, "large_count": 10 }, { "candidate_count": 69, "class": "Ironing clothes", "delta_vs_initial_k": -1, "initial_rule_k": 13, "large_count": 12 }, { "candidate_count": 51, "class": "Laying tile", "delta_vs_initial_k": -1, "initial_rule_k": 10, "large_count": 9 }, { "candidate_count": 91, "class": "Making a cake", "delta_vs_initial_k": -1, "initial_rule_k": 18, "large_count": 17 }, { "candidate_count": 44, "class": "Making an omelette", "delta_vs_initial_k": -4, "initial_rule_k": 8, "large_count": 4 }, { "candidate_count": 60, "class": "Painting", "delta_vs_initial_k": -1, "initial_rule_k": 12, "large_count": 11 }, { "candidate_count": 73, "class": "Painting fence", "delta_vs_initial_k": -2, "initial_rule_k": 14, "large_count": 12 }, { "candidate_count": 60, "class": "Plastering", "delta_vs_initial_k": -1, "initial_rule_k": 12, "large_count": 11 }, { "candidate_count": 110, "class": "Playing drums", "delta_vs_initial_k": -2, "initial_rule_k": 22, "large_count": 20 }, { "candidate_count": 66, "class": "Playing racquetball", "delta_vs_initial_k": -3, "initial_rule_k": 13, "large_count": 10 }, { "candidate_count": 75, "class": "Playing saxophone", "delta_vs_initial_k": -4, "initial_rule_k": 15, "large_count": 11 }, { "candidate_count": 61, "class": "Polishing shoes", "delta_vs_initial_k": -2, "initial_rule_k": 12, "large_count": 10 }, { "candidate_count": 81, "class": "Preparing pasta", "delta_vs_initial_k": -2, "initial_rule_k": 16, "large_count": 14 }, { "candidate_count": 51, "class": "Raking leaves", "delta_vs_initial_k": -1, "initial_rule_k": 10, "large_count": 9 }, { "candidate_count": 55, "class": "Removing curlers", "delta_vs_initial_k": -1, "initial_rule_k": 11, "large_count": 10 }, { "candidate_count": 83, "class": "Riding bumper cars", "delta_vs_initial_k": -4, "initial_rule_k": 16, "large_count": 12 }, { "candidate_count": 75, "class": "Sharpening knives", "delta_vs_initial_k": -3, "initial_rule_k": 15, "large_count": 12 }, { "candidate_count": 72, "class": "Shaving", "delta_vs_initial_k": -8, "initial_rule_k": 14, "large_count": 6 }, { "candidate_count": 78, "class": "Shoveling snow", "delta_vs_initial_k": -6, "initial_rule_k": 15, "large_count": 9 }, { "candidate_count": 72, "class": "Skateboarding", "delta_vs_initial_k": -2, "initial_rule_k": 14, "large_count": 12 }, { "candidate_count": 97, "class": "Slacklining", "delta_vs_initial_k": -1, "initial_rule_k": 19, "large_count": 18 }, { "candidate_count": 99, "class": "Snowboarding", "delta_vs_initial_k": -1, "initial_rule_k": 19, "large_count": 18 }, { "candidate_count": 72, "class": "Springboard diving", "delta_vs_initial_k": -1, "initial_rule_k": 14, "large_count": 13 }, { "candidate_count": 124, "class": "Surfing", "delta_vs_initial_k": -4, "initial_rule_k": 24, "large_count": 20 }, { "candidate_count": 76, "class": "Swimming", "delta_vs_initial_k": -9, "initial_rule_k": 15, "large_count": 6 }, { "candidate_count": 70, "class": "Table soccer", "delta_vs_initial_k": -6, "initial_rule_k": 14, "large_count": 8 }, { "candidate_count": 73, "class": "Tai chi", "delta_vs_initial_k": -2, "initial_rule_k": 14, "large_count": 12 }, { "candidate_count": 100, "class": "Using parallel bars", "delta_vs_initial_k": -2, "initial_rule_k": 20, "large_count": 18 }, { "candidate_count": 63, "class": "Volleyball", "delta_vs_initial_k": -5, "initial_rule_k": 12, "large_count": 7 }, { "candidate_count": 79, "class": "Walking the dog", "delta_vs_initial_k": -1, "initial_rule_k": 15, "large_count": 14 }, { "candidate_count": 75, "class": "Washing face", "delta_vs_initial_k": -3, "initial_rule_k": 15, "large_count": 12 }, { "candidate_count": 63, "class": "Zumba", "delta_vs_initial_k": -2, "initial_rule_k": 12, "large_count": 10 } ], "interpretation": "sample_subset.py enforces max(5, int(class_ratio * class_count)) only during the initial class-balanced sampling stage. The later length-balancing stage samples globally from that pool and can reduce final per-class counts below the initial k.", "issue": "final_large_not_constrained_by_initial_min_per_class_rule", "most_underrepresented_examples": [ { "candidate_count": 76, "class": "Swimming", "delta_vs_initial_k": -9, "initial_rule_k": 15, "large_count": 6 }, { "candidate_count": 72, "class": "Shaving", "delta_vs_initial_k": -8, "initial_rule_k": 14, "large_count": 6 }, { "candidate_count": 103, "class": "Baton twirling", "delta_vs_initial_k": -7, "initial_rule_k": 20, "large_count": 13 }, { "candidate_count": 70, "class": "Cleaning windows", "delta_vs_initial_k": -6, "initial_rule_k": 14, "large_count": 8 }, { "candidate_count": 78, "class": "Shoveling snow", "delta_vs_initial_k": -6, "initial_rule_k": 15, "large_count": 9 }, { "candidate_count": 70, "class": "Table soccer", "delta_vs_initial_k": -6, "initial_rule_k": 14, "large_count": 8 }, { "candidate_count": 73, "class": "Archery", "delta_vs_initial_k": -5, "initial_rule_k": 14, "large_count": 9 }, { "candidate_count": 68, "class": "Clipping cat claws", "delta_vs_initial_k": -5, "initial_rule_k": 13, "large_count": 8 }, { "candidate_count": 63, "class": "Volleyball", "delta_vs_initial_k": -5, "initial_rule_k": 12, "large_count": 7 }, { "candidate_count": 90, "class": "Clean and jerk", "delta_vs_initial_k": -4, "initial_rule_k": 18, "large_count": 14 } ] }, { "interpretation": "The scale manifests use src_fmt_dur from verify_all.csv per the scale-construction requirement. sample_subset.py used metadata[v][\"duration\"] for its original length balancing.", "issue": "release_scale_duration_buckets_use_src_fmt_dur_not_original_caption_metadata_duration" }, { "interpretation": "Local taxonomy/candidate/final files contain and preserve 200 classes; see audit/missing_classes_analysis.md.", "issue": "class_count_claim_203_not_supported_by_local_sources" } ], "inferred": { "medium_small_preserve_large_principles": "They preserve the Large release distribution by deterministic nested stratified selection over split, class, duration bucket, and event-friendly status; they are not original sample_subset.py outputs.", "released_large_satisfies_original_principles": "Yes as the recovered output of those principles: it exactly matches subset_caps_20p.json, preserves all 200 local classes, and carries the expected event-friendly/duration/class-balanced structure. The final per-class counts are not guaranteed to remain >= the initial min rule after length balancing and event enrichment." } }, "part_b_scale_comparison": { "published_paper_comparison": { "caption_minus_published_hours": -0.347716666667, "duration_field_comparison": [ { "abs_diff_from_published_hours": 0.451651586944, "diff_from_published_hours": -0.451651586944, "field": "src_dur", "hours": 106.848348413056, "invalid_count": 0, "missing_count": 0, "valid_count": 3263 }, { "abs_diff_from_published_hours": 0.358399618611, "diff_from_published_hours": -0.358399618611, "field": "src_fmt_dur", "hours": 106.941600381389, "invalid_count": 0, "missing_count": 0, "valid_count": 3263 }, { "abs_diff_from_published_hours": 0.517909962778, "diff_from_published_hours": -0.517909962778, "field": "src_dur_est", "hours": 106.782090037222, "invalid_count": 0, "missing_count": 0, "valid_count": 3263 }, { "abs_diff_from_published_hours": 0.514877834167, "diff_from_published_hours": -0.514877834167, "field": "dst_dur", "hours": 106.785122165833, "invalid_count": 0, "missing_count": 0, "valid_count": 3263 }, { "abs_diff_from_published_hours": 0.360772981944, "diff_from_published_hours": -0.360772981944, "field": "dst_fmt_dur", "hours": 106.939227018056, "invalid_count": 0, "missing_count": 0, "valid_count": 3263 }, { "abs_diff_from_published_hours": 0.518743268055, "diff_from_published_hours": -0.518743268055, "field": "dst_dur_est", "hours": 106.781256731945, "invalid_count": 0, "missing_count": 0, "valid_count": 3263 } ], "interpretation": "The recovered Large IDs exactly match subset_caps_20p.json, so the observed 107.3 h discrepancy does not indicate a different historical subset. It is not explained solely by src_fmt_dur versus other local metadata fields; all local fields are around 106.78-106.95 h. Treat 107.3 h as an approximate/reporting duration unless another historical duration source is recovered.", "published_large_hours": 107.3, "release_large_caption_duration_hours_from_subset_caps_20p": 106.952283333333, "release_large_src_fmt_dur_hours": 106.941600381389, "src_fmt_minus_published_hours": -0.358399618611 }, "scales": { "large": { "average_duration_seconds": 117.986442345388, "class_count": 200, "class_counts": { "Applying sunscreen": 17, "Archery": 9, "Arm wrestling": 18, "Assembling bicycle": 13, "BMX": 22, "Baking cookies": 21, "Ballet": 17, "Bathing dog": 12, "Baton twirling": 13, "Beach soccer": 18, "Beer pong": 12, "Belly dance": 11, "Blow-drying hair": 13, "Blowing leaves": 17, "Braiding hair": 13, "Breakdancing": 19, "Brushing hair": 16, "Brushing teeth": 16, "Building sandcastles": 16, "Bullfighting": 22, "Bungee jumping": 10, "Calf roping": 23, "Camel ride": 16, "Canoeing": 30, "Capoeira": 25, "Carving jack-o-lanterns": 12, "Changing car wheel": 16, "Cheerleading": 22, "Chopping wood": 22, "Clean and jerk": 14, "Cleaning shoes": 13, "Cleaning sink": 8, "Cleaning windows": 8, "Clipping cat claws": 8, "Cricket": 18, "Croquet": 19, "Cumbia": 12, "Curling": 21, "Cutting the grass": 18, "Decorating the Christmas tree": 9, "Disc dog": 27, "Discus throw": 26, "Dodgeball": 13, "Doing a powerbomb": 26, "Doing crunches": 15, "Doing fencing": 23, "Doing karate": 12, "Doing kickboxing": 16, "Doing motocross": 23, "Doing nails": 13, "Doing step aerobics": 19, "Drinking beer": 12, "Drinking coffee": 13, "Drum corps": 12, "Elliptical trainer": 22, "Fixing bicycle": 12, "Fixing the roof": 15, "Fun sliding down": 12, "Futsal": 24, "Gargling mouthwash": 13, "Getting a haircut": 18, "Getting a piercing": 12, "Getting a tattoo": 16, "Grooming dog": 11, "Grooming horse": 9, "Hammer throw": 17, "Hand car wash": 20, "Hand washing clothes": 14, "Hanging wallpaper": 17, "Having an ice cream": 10, "High jump": 15, "Hitting a pinata": 17, "Hopscotch": 17, "Horseback riding": 17, "Hula hoop": 10, "Hurling": 18, "Ice fishing": 12, "Installing carpet": 11, "Ironing clothes": 12, "Javelin throw": 23, "Kayaking": 22, "Kite flying": 14, "Kneeling": 21, "Knitting": 13, "Laying tile": 9, "Layup drill in basketball": 19, "Long jump": 21, "Longboarding": 26, "Making a cake": 17, "Making a lemonade": 20, "Making a sandwich": 17, "Making an omelette": 4, "Mixing drinks": 23, "Mooping floor": 19, "Mowing the lawn": 16, "Paintball": 20, "Painting": 11, "Painting fence": 12, "Painting furniture": 11, "Peeling potatoes": 10, "Ping-pong": 12, "Plastering": 11, "Plataform diving": 22, "Playing accordion": 15, "Playing badminton": 13, "Playing bagpipes": 16, "Playing beach volleyball": 11, "Playing blackjack": 13, "Playing congas": 25, "Playing drums": 20, "Playing field hockey": 20, "Playing flauta": 14, "Playing guitarra": 22, "Playing harmonica": 17, "Playing ice hockey": 18, "Playing kickball": 15, "Playing lacrosse": 23, "Playing piano": 17, "Playing polo": 13, "Playing pool": 15, "Playing racquetball": 10, "Playing rubik cube": 19, "Playing saxophone": 11, "Playing squash": 19, "Playing ten pins": 21, "Playing violin": 18, "Playing water polo": 23, "Pole vault": 27, "Polishing forniture": 11, "Polishing shoes": 10, "Powerbocking": 21, "Preparing pasta": 14, "Preparing salad": 23, "Putting in contact lenses": 19, "Putting on makeup": 19, "Putting on shoes": 12, "Rafting": 27, "Raking leaves": 9, "Removing curlers": 10, "Removing ice from car": 23, "Riding bumper cars": 12, "River tubing": 18, "Rock climbing": 16, "Rock-paper-scissors": 17, "Rollerblading": 16, "Roof shingle removal": 13, "Rope skipping": 20, "Running a marathon": 32, "Sailing": 16, "Scuba diving": 20, "Sharpening knives": 12, "Shaving": 6, "Shaving legs": 18, "Shot put": 15, "Shoveling snow": 9, "Shuffleboard": 15, "Skateboarding": 12, "Skiing": 26, "Slacklining": 18, "Smoking a cigarette": 18, "Smoking hookah": 13, "Snatch": 22, "Snow tubing": 20, "Snowboarding": 18, "Spinning": 16, "Spread mulch": 8, "Springboard diving": 13, "Starting a campfire": 19, "Sumo": 20, "Surfing": 20, "Swimming": 6, "Swinging at the playground": 16, "Table soccer": 8, "Tai chi": 12, "Tango": 16, "Tennis serve with ball bouncing": 16, "Throwing darts": 17, "Trimming branches or hedges": 18, "Triple jump": 26, "Tug of war": 15, "Tumbling": 16, "Using parallel bars": 18, "Using the balance beam": 29, "Using the monkey bar": 15, "Using the pommel horse": 14, "Using the rowing machine": 19, "Using uneven bars": 14, "Vacuuming floor": 18, "Volleyball": 7, "Wakeboarding": 21, "Walking the dog": 14, "Washing dishes": 21, "Washing face": 12, "Washing hands": 16, "Waterskiing": 20, "Waxing skis": 15, "Welding": 18, "Windsurfing": 15, "Wrapping presents": 17, "Zumba": 10 }, "classes_below_sample_subset_initial_min_rule": [], "duration_bucket_counts": { "long": 1110, "medium": 1076, "short": 1077 }, "duration_bucket_ratios": { "long": 0.340177750536, "medium": 0.329757891511, "short": 0.330064357953 }, "duration_seconds": 384989.761373, "event_friendly_count": 2131, "event_friendly_ratio": 0.653079987741, "hours": 106.941600381389, "largest_class_gains_vs_large": [ { "class": "Applying sunscreen", "large_count": 17, "large_ratio": 0.005209929513, "ratio_delta": 0.0, "scale_count": 17, "scale_ratio": 0.005209929513 }, { "class": "Archery", "large_count": 9, "large_ratio": 0.002758197977, "ratio_delta": 0.0, "scale_count": 9, "scale_ratio": 0.002758197977 }, { "class": "Arm wrestling", "large_count": 18, "large_ratio": 0.005516395955, "ratio_delta": 0.0, "scale_count": 18, "scale_ratio": 0.005516395955 }, { "class": "Assembling bicycle", "large_count": 13, "large_ratio": 0.003984063745, "ratio_delta": 0.0, "scale_count": 13, "scale_ratio": 0.003984063745 }, { "class": "BMX", "large_count": 22, "large_ratio": 0.006742261722, "ratio_delta": 0.0, "scale_count": 22, "scale_ratio": 0.006742261722 }, { "class": "Baking cookies", "large_count": 21, "large_ratio": 0.00643579528, "ratio_delta": 0.0, "scale_count": 21, "scale_ratio": 0.00643579528 }, { "class": "Ballet", "large_count": 17, "large_ratio": 0.005209929513, "ratio_delta": 0.0, "scale_count": 17, "scale_ratio": 0.005209929513 }, { "class": "Bathing dog", "large_count": 12, "large_ratio": 0.003677597303, "ratio_delta": 0.0, "scale_count": 12, "scale_ratio": 0.003677597303 }, { "class": "Baton twirling", "large_count": 13, "large_ratio": 0.003984063745, "ratio_delta": 0.0, "scale_count": 13, "scale_ratio": 0.003984063745 }, { "class": "Beach soccer", "large_count": 18, "large_ratio": 0.005516395955, "ratio_delta": 0.0, "scale_count": 18, "scale_ratio": 0.005516395955 } ], "largest_class_losses_vs_large": [ { "class": "Applying sunscreen", "large_count": 17, "large_ratio": 0.005209929513, "ratio_delta": 0.0, "scale_count": 17, "scale_ratio": 0.005209929513 }, { "class": "Archery", "large_count": 9, "large_ratio": 0.002758197977, "ratio_delta": 0.0, "scale_count": 9, "scale_ratio": 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true } }, "part_c_release_recommendation": { "caveats": [ "Use 200 classes, not 203, for this recovered release.", "Medium and Small are newly generated deterministic nested candidates; they are distribution-preserving derivatives of Large, not historical sample_subset.py outputs.", "Authoritative scale durations use src_fmt_dur from verify_all.csv. The original subset file caption durations and all local verify_all duration fields are close but do not equal the paper statement of 107.3 h exactly.", "The final Large list can have classes below the initial max(5, int(class_ratio * class_count)) seed-stage minimum because the original script did not enforce that constraint after length balancing." ], "recommendation": "Suitable as candidate public release manifests after documenting caveats.", "suitable_for_public_release": true }, "status": "final_scaling_verification_audit" }