by: Kevin Broløs
(Feyn version 1.4 or newer)
graph is the final artifact, and can be referred to as your output
model to keep in line with other machine learning frameworks.
graph consists of one or more of your input features, some
interactions between them and a variety of functions that have been fitted to your dataset, leading to an output.
graph for the iris dataset could look like this:
In an IPython environment, you'll be able to hover over each of the
interactions to get a tooltip with the internal state of it - such as the weights, biases and encodings.
Evaluate, evaluate, EVALUATE!!!
Once you've selected a graph, you will want to evaluate it, and use it to produce predictions.
# Select a graph from your fitted QGraph best_graph = qgraph # Get predictions prediction = best_graph.predict(test) feyn.plots.plot_confusion_matrix(y_true=test['target'], y_pred=prediction.round(), title="Confusion Matrix [Test]")
I'm saving this one for later!
Once you've evaluated your
graphs and are ready to use these predictions in a production setup, you can simply save the
# Save your evaluated graph to a file best_graph.save('/tmp/my_precious.graph')
And that's that.
You can load the
graphs again at any time using feyn.Graph.load, and use them to predict on new data.
from feyn import Graph loaded_graph = Graph.load('/tmp/my_precious.graph') prediction = loaded_graph.predict(test) feyn.plots.plot_confusion_matrix(y_true=test['target'], y_pred=prediction.round(), title="Confusion Matrix [Test]")
graph is saved and selected, you can insert them into any (Python) environment to do predictions - you don't need access to your
QLattice in order to use the resulting