Source code for asreview.query_strategies.utils

# Copyright 2019 The ASReview Authors. All Rights Reserved.
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[docs]def get_query_class(method): """Get class of query strategy from its name. Arguments --------- method: str Name of the query strategy, e.g. 'max', 'uncertainty', 'random. A special mixed query strategy is als possible. The mix is denoted by an underscore: 'max_random' or 'max_uncertainty'. Returns ------- BaseQueryModel: Class corresponding to the method name. """ from asreview.query_strategies.cluster import ClusterQuery from asreview.query_strategies.max import MaxQuery from asreview.query_strategies.uncertainty import UncertaintyQuery from asreview.query_strategies.random import RandomQuery from asreview.query_strategies.mixed import MixedQuery query_models = { "cluster": ClusterQuery, "max": MaxQuery, "uncertainty": UncertaintyQuery, "random": RandomQuery, } # Try to split the query strategy if the string wasn't found. try: return query_models[method] except KeyError: mix = method.split("_") if len(mix) == 2: return MixedQuery raise ValueError(f"Error: query method '{method}' is not implemented.")
[docs]def get_query_model(method, *args, random_state=None, **kwargs): """Get an instance of the query strategy. Arguments --------- method: str Name of the query strategy. *args: Arguments for the model. **kwargs: Keyword arguments for the model. Returns ------- BaseQueryModel: Initialized instance of query strategy. """ from asreview.query_strategies.mixed import MixedQuery query_class = get_query_class(method) if query_class == MixedQuery: mix = method.split("_") for i in range(2): kwargs.pop("strategy_" + str(i+1), None) try: return query_class(mix[0], mix[1], *args, random_state=random_state, **kwargs) except TypeError: return query_class(mix[0], mix[1], *args, **kwargs) try: return query_class(*args, random_state=random_state, **kwargs) except TypeError: return query_class(*args, **kwargs)