Function predictOnManualInput

iris/index.js:92–114

* Run inference on manually-input Iris flower data. * * @param model The instance of `tf.Model` to run the inference with.

(model)

 * @param model The instance of `tf.Model` to run the inference with.
 */
async function predictOnManualInput(model) {
  if (model == null) {
    ui.setManualInputWinnerMessage('ERROR: Please load or train model first.');
    return;
  }

  // Use a `tf.tidy` scope to make sure that WebGL memory allocated for the
  // `predict` call is released at the end.
  tf.tidy(() => {
    // Prepare input data as a 2D `tf.Tensor`.
    const inputData = ui.getManualInputData();
    const input = tf.tensor2d([inputData], [1, 4]);

    // Call `model.predict` to get the prediction output as probabilities for
    // the Iris flower categories.

    const predictOut = model.predict(input);
    const logits = Array.from(predictOut.dataSync());
    const winner = data.IRIS_CLASSES[predictOut.argMax(-1).dataSync()[0]];
    ui.setManualInputWinnerMessage(winner);
    ui.renderLogitsForManualInput(logits);
  });
}

/**
 * Draw confusion matrix.