{
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    "label_polarity_consistency_count": 100
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    "methods": {
      "B0": "quality-weighted hard CTC word projection + physical source-time pooling + train-fold standard scaling",
      "B1": "B0 + train-fold median/MAD scaling + SO(3) rotation mean + normalized gaze vector mean",
      "B2": "B1 + fixed-transcript CTC forward-backward word occupancy projection for text",
      "B3": "B1 + second-order time-augmented log signatures of selected audio/face channels",
      "B4": "B1 + frozen Wav2Vec2 last-four-layer speech representation"
    },
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    "audio_dimension": 74,
    "vision_dimension": 35,
    "audio_features": [
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      "delta_mfcc_10",
      "delta_mfcc_11",
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      "log_energy",
      "log_f0_hz",
      "voiced_probability",
      "spectral_centroid_hz",
      "spectral_bandwidth_hz",
      "spectral_flux",
      "zero_crossing_rate",
      "hnr_db"
    ],
    "vision_features": [
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      "AU02_r",
      "AU04_r",
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      "AU06_r",
      "AU07_r",
      "AU09_r",
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      "AU15_r",
      "AU17_r",
      "AU20_r",
      "AU23_r",
      "AU25_r",
      "AU26_r",
      "AU45_r",
      "pose_Rx",
      "pose_Ry",
      "pose_Rz",
      "pose_Tx",
      "pose_Ty",
      "pose_Tz",
      "gaze_0_x",
      "gaze_0_y",
      "gaze_0_z",
      "gaze_1_x",
      "gaze_1_y",
      "gaze_1_z",
      "geometry_eye_open_left",
      "geometry_eye_open_right",
      "geometry_mouth_open",
      "geometry_mouth_width",
      "geometry_brow_eye_left",
      "geometry_brow_eye_right"
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    "vision_feature_note": "OpenFace 2.2.0 AU intensities, pose, gaze, and six geometry values defined in E题V2.pdf section 4.2.3",
    "grid_step_s": 0.1,
    "audio_window_samples": 400,
    "audio_step_samples": 160,
    "audio_fft": 512,
    "audio_mel_bands": 40,
    "pitch_estimator": {
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      "version": "1.0.0",
      "f0_range_hz": [
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      "frame_length_samples": 400,
      "hop_length_samples": 160,
      "center": false
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    "hnr_estimator": "autocorrelation periodicity at pYIN-detected F0; dB",
    "vision_sample_rate_hz": "native OpenFace frame timestamps; no fixed-rate assumption",
    "grouping": "GroupKFold by video_id",
    "fold_count": 5,
    "probe": {
      "classifier": "LogisticRegression",
      "C": 0.05,
      "regressor": "Ridge",
      "alpha": 25.0,
      "intensity_clip": [
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      "repeats": 200,
      "seed": 20260923
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    "cache_schema": "q1-b0b4-v4-openface"
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  "output_dir": "/home/gloamxun/modeling_zhaocui/math/Q1/results/model_comparison",
  "typical_sample_id": "-tANM6ETl_M/3",
  "elapsed_seconds": 63.887396574020386
}