Patent Document ID: 10158859
Application ID: 15637977

Base Claim:
1. A computer-implemented data compression apparatus comprising: a processor configured to act as an encoder, wherein the encoder is configured to receive an input data item and to compress the data item into an encoding comprising a plurality of numerical values, where the numerical values are grouped at least according to whether they relate to content of the input data item or style of the input data item; a memory configured to store the encoding; and wherein the encoder has been trained using: a plurality of groups of training data items grouped according to the content and where training data items within individual ones of the groups vary with respect to the style, and a training objective which takes into account the groups.

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Claim 2:
2. The data compression apparatus of claim 1 wherein the encoder comprises a neural network with an output layer separated into at least two parts, one of which outputs numerical values of the encoding related to the content and one of which outputs numerical values of the encoding related to the style.