Abstract: In some implementations, a device may determine a set of features for the machine learning model. The device may determine, using off-policy evaluation, a performance level of the machine learning model associated with the set of features. The device may determine, based on the performance level, a ranking of the set of features. The device may generate, based on the ranking, one or more subsets of features from the set of features. The device may determine, using the off-policy evaluation, performance levels of the machine learning model for respective subsets of features from the one or more subsets of features. The device may select, based on the performance levels, a subset of features from the one or more subsets of features. The device may obtain, via the machine learning model, one or more recommendations that are based on input data, wherein the machine learning model uses the subset of features.

Abstract: The present disclosure relates to a method and an apparatus, an electronic device and a storage medium for web search. The method includes: acquiring a steady-state visual evoked potential in EEG information, where the steady-state visual evoked potential is generated when a user gazes at a key on a query inputting keyboard in a visual spelling page; sending the steady-state visual evoked potential to a server, such that the server, based on the steady-state visual evoked potential, determines a character string inputted by the user, and a landing page corresponding to the character string; and in response to receiving the landing page sent by the server, displaying the landing page.

Abstract: The present disclosure relates to a method and an apparatus, an electronic device and a storage medium for web search. The method includes: acquiring a steady-state visual evoked potential in EEG information, where the steady-state visual evoked potential is generated when a user gazes at a key on a query inputting keyboard in a visual spelling page; sending the steady-state visual evoked potential to a server, such that the server, based on the steady-state visual evoked potential, determines a character string inputted by the user, and a landing page corresponding to the character string; and in response to receiving the landing page sent by the server, displaying the landing page.