Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for generating a prediction of an audio signal. One of the methods includes receiving a request to generate an audio signal; obtaining a semantic representation of the audio signal; generating, using one or more generative neural networks and conditioned on at least the semantic representation, an acoustic representation of the audio signal; and processing at least the acoustic representation using a decoder neural network to generate the prediction of the audio signal.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for performing reinforcement learning with centralized inference and training One of the methods includes receiving, at a current time-step in a plurality of time-steps, a respective observation by an actor for each environment of a plurality of environments; obtaining, for each environment, a respective reward for the actor as a result of the actor performing a respective action at a previous time-step preceding the current time-step; processing, for each environment, the respective observation and respective reward through a policy model; providing, to the actor, the respective policy outputs for each of the plurality of environments; maintaining at a repository and for each environment, a respective sequence of tuples corresponding to the actor; determining that a maintained sequence meets a threshold condition; and in response, training the policy model on the maintained sequence.

Abstract: Methods, systems, and media for presenting content organized by category are provided. In some embodiments, the method comprises: receiving a request to present a page indicating content related to a first entity; identifying a first group of entities related to the first entity based at least in part on user interaction information; identifying a group of properties corresponding to the first entity; identifying, for each property, a second group of entities corresponding to the property; calculating, for each property, a score for the property; determining a subset of the properties in the group of properties based on the score of each property; identifying, for each property in the subset of properties, a group of content items corresponding to the property; determining a subset of content items from the group of content items; and causing a user interface indicating the subset of content items to be presented.

Abstract: Methods, systems, and media for presenting content organized by category are provided. In some embodiments, the method comprises: receiving a request to present a page indicating content related to a first entity; identifying a first group of entities related to the first entity based at least in part on user interaction information; identifying a group of properties corresponding to the first entity; identifying, for each property, a second group of entities corresponding to the property; calculating, for each property, a score for the property; determining a subset of the properties in the group of properties based on the score of each property; identifying, for each property in the subset of properties, a group of content items corresponding to the property; determining a subset of content items from the group of content items; and causing a user interface indicating the subset of content items to be presented.