procedure
Petersen et al. (2019) proposed the Deep Symbolic Regression (DSR) method to recover mathematical expressions from data. The method proceeds by: (1) representing expressions as node sequences in symbolic expression trees containing mathematical operators and operands; (2) using a Recurrent Neural Network (RNN) to predict the next operator or operand based on the existing sequence; (3) calculating the degree of fit of the generated expression on a specific dataset; and (4) using the fit as feedback to guide the RNN's subsequent generation process.

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