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Stimulus generalization

Stimulus-grouped generalization workflow

data <- simulate_gazepoint_governed_data(18L, 9L, 1L, seed = 2501L)
predictors <- c("tracking_ratio", "fixation_duration", "gaze_dispersion")
task <- create_gazepoint_synthetic_task(data, "recording_quality", "new_stimuli")
manifest <- create_gazepoint_synthetic_manifest(task$outcome, predictors)
folds <- create_gazepoint_group_folds(
  data, task$outcome, predictors, manifest,
  "new_stimuli", "participant_id", "trial_id", "stimulus_id",
  v = 3L, repeats = 2L, seed = 2501L
)
diagnose_gazepoint_group_folds(folds)
#> <gazepoint_fold_diagnostics>
#> Target: new_stimuli
#> Repeats: 2
#> Folds: 6
#> Outcome type: categorical
#> Diagnostic status: PASS
#> Maximum assessment-size ratio: 1.000
evaluation <- evaluate_gazepoint_group_folds(
  folds, task, predictors, "glm", seed = 2501L
)
summarize_gazepoint_resample_uncertainty(evaluation, unit = "fold")
#> <gp3ml_resample_uncertainty> unit=fold
#>             metric distribution_unit n_units      mean    median         sd
#>           accuracy              fold       6 0.8209877 0.8333333 0.03447961
#>  balanced_accuracy              fold       6 0.5000000 0.5000000 0.00000000
#>        sensitivity              fold       6 0.0000000 0.0000000 0.00000000
#>        specificity              fold       6 1.0000000 1.0000000 0.00000000
#>          precision              fold       0       NaN        NA         NA
#>             recall              fold       6 0.0000000 0.0000000 0.00000000
#>                 f1              fold       0       NaN        NA         NA
#>                mcc              fold       0       NaN        NA         NA
#>            roc_auc              fold       6 0.5983918 0.5692935 0.06668780
#>             pr_auc              fold       6 0.2693216 0.2921778 0.06735544
#>              brier              fold       6 0.1475925 0.1350173 0.02302486
#>           log_loss              fold       6 0.4728527 0.4385498 0.06276389
#>      lower     upper
#>  0.7777778 0.8518519
#>  0.5000000 0.5000000
#>  0.0000000 0.0000000
#>  1.0000000 1.0000000
#>         NA        NA
#>  0.0000000 0.0000000
#>         NA        NA
#>         NA        NA
#>  0.5411706 0.6959877
#>  0.1849514 0.3319524
#>  0.1284306 0.1778630
#>  0.4217248 0.5576091

Stimulus-grouped assessment estimates generalization to held-out stimuli only. It does not establish participant generalization.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.