MEDIUM_TASK = { "task_id": "task_medium", "difficulty": "medium", "description": ( "Classify clips with mixed or borderline evidence. " "Use metadata trade-offs to justify KEEP/BORDERLINE/REJECT." ), "data_corpus": [ { "id": "med_001", "clip_id": "clip_0008", "duration_s": 6.2, "fps": 25, "resolution": "1280x720", "face_area_ratio": 0.24, "face_confidence": 0.78, "head_pose_yaw_deg": 14.4, "head_pose_pitch_deg": 9.3, "motion_score": 0.29, "bg_complexity": "simple_room", "bg_complexity_score": 0.18, "mouth_open_ratio": 0.23, "blink_rate_hz": 0.30, "audio_snr_db": 18.5, "transcript_word_count": 20, "transcript_confidence": 0.75, "lighting_uniformity": 0.62, "occlusion_present": False, "environment_tag": "office", "framing": "left", "expected_label": "BORDERLINE", "quality_cues": [ "face_confidence is slightly below keep threshold", "audio_snr_db and motion_score are borderline", "no hard reject signal", ], "review_status": "pending", }, { "id": "med_002", "clip_id": "clip_0009", "duration_s": 10.6, "fps": 25, "resolution": "1280x720", "face_area_ratio": 0.23, "face_confidence": 0.77, "head_pose_yaw_deg": 16.1, "head_pose_pitch_deg": 9.8, "motion_score": 0.31, "bg_complexity": "simple_room", "bg_complexity_score": 0.19, "mouth_open_ratio": 0.24, "blink_rate_hz": 0.31, "audio_snr_db": 17.4, "transcript_word_count": 23, "transcript_confidence": 0.73, "lighting_uniformity": 0.59, "occlusion_present": False, "environment_tag": "podcast_corner", "framing": "front", "expected_label": "BORDERLINE", "quality_cues": [ "duration_s is near upper keep band edge", "face_area_ratio is borderline small", "audio_snr_db is weak but not catastrophic", ], "review_status": "pending", }, { "id": "med_003", "clip_id": "clip_0010", "duration_s": 7.4, "fps": 25, "resolution": "1280x720", "face_area_ratio": 0.27, "face_confidence": 0.82, "head_pose_yaw_deg": 11.2, "head_pose_pitch_deg": 7.7, "motion_score": 0.24, "bg_complexity": "office", "bg_complexity_score": 0.14, "mouth_open_ratio": 0.29, "blink_rate_hz": 0.26, "audio_snr_db": 20.1, "transcript_word_count": 22, "transcript_confidence": 0.81, "lighting_uniformity": 0.66, "occlusion_present": False, "environment_tag": "workstation", "framing": "front", "expected_label": "BORDERLINE", "quality_cues": [ "face_confidence is good but face_area_ratio remains only moderate", "motion_score and mouth_open_ratio are near boundary values", ], "review_status": "pending", }, { "id": "med_004", "clip_id": "clip_0011", "duration_s": 4.3, "fps": 25, "resolution": "1280x720", "face_area_ratio": 0.21, "face_confidence": 0.69, "head_pose_yaw_deg": 19.1, "head_pose_pitch_deg": 10.6, "motion_score": 0.39, "bg_complexity": "busy_room", "bg_complexity_score": 0.23, "mouth_open_ratio": 0.21, "blink_rate_hz": 0.34, "audio_snr_db": 15.0, "transcript_word_count": 13, "transcript_confidence": 0.69, "lighting_uniformity": 0.54, "occlusion_present": False, "environment_tag": "classroom", "framing": "offgaze", "expected_label": "BORDERLINE", "quality_cues": [ "duration_s is barely acceptable", "audio_snr_db and lighting_uniformity are borderline", "motion_score is elevated but below hard reject cutoff", ], "review_status": "pending", }, { "id": "med_005", "clip_id": "clip_0003", "duration_s": 8.7, "fps": 25, "resolution": "1280x720", "face_area_ratio": 0.36, "face_confidence": 0.91, "head_pose_yaw_deg": 8.1, "head_pose_pitch_deg": 5.4, "motion_score": 0.14, "bg_complexity": "solid_dark", "bg_complexity_score": 0.08, "mouth_open_ratio": 0.34, "blink_rate_hz": 0.24, "audio_snr_db": 23.9, "transcript_word_count": 29, "transcript_confidence": 0.88, "lighting_uniformity": 0.81, "occlusion_present": False, "environment_tag": "studio", "framing": "front", "expected_label": "KEEP", "quality_cues": [ "strong face_confidence and face_area_ratio", "clean audio and stable motion", "well lit with no occlusion", ], "review_status": "pending", }, ], }