Source code for asreview.query_strategies.uncertainty

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"""Uncertainty sampling while saving probabilities."""

import numpy as np

from asreview.query_strategies.base import ProbaQueryStrategy


[docs]class UncertaintyQuery(ProbaQueryStrategy): """Maximum uncertainty query strategy.""" name = "uncertainty" def _query(self, X, pool_idx, n_instances=1, proba=None): uncertainty = 1 - np.max(proba[pool_idx], axis=1) query_idx = np.argsort(-uncertainty)[:n_instances] return pool_idx[query_idx], X[pool_idx[query_idx]]