Source code for asreview.models.query.random

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"""Random sampling strategy."""

__all__ = ["RandomQuery"]

import numpy as np

from asreview.models.query.base import BaseQueryStrategy
from asreview.utils import get_random_state


[docs] class RandomQuery(BaseQueryStrategy): """Random query strategy (``random``). Randomly select samples with no regard to model assigned probabilities. .. warning:: Selecting this option means your review is not going to be accelerated by ASReview. """ name = "random" label = "Random" def __init__(self, random_state=None): super().__init__() self._random_state = get_random_state(random_state)
[docs] def query( self, X, classifier=None, n_instances=None, return_classifier_scores=False, **kwargs, ): if n_instances is None: n_instances = X.shape[0] query_idx = self._random_state.choice( np.arange(X.shape[0]), n_instances, replace=False ) if return_classifier_scores: return query_idx, None else: return query_idx