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import numpy as np
import sklearn
def cb_multi_fi(items):
preds, golds = zip(*items)
preds = np.array(preds)
golds = np.array(golds)
f11 = sklearn.metrics.f1_score(y_true=golds == 0, y_pred=preds == 0)
f12 = sklearn.metrics.f1_score(y_true=golds == 1, y_pred=preds == 1)
f13 = sklearn.metrics.f1_score(y_true=golds == 2, y_pred=preds == 2)
avg_f1 = np.mean([f11, f12, f13])
return avg_f1
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