Abstract: The present disclosure provides a method and device for determining an optimal operation path. The method can include determining a model operation topology graph according to a neural network model, the model operation topology graph including a plurality of operation nodes, and selecting a plurality of operators with a same operation type as the operation node for each operation node in the model operation topology graph, and creating a corresponding operator node for each operator. Further, the method can include, according to a connection relationship between the operation nodes in the model operation topology graph, constructing an operator topology graph based on the created operator nodes, determining an operation index of each operator node, and weighting the operator topology graph based on the operation index of each operator node to obtain a weighted operator topology graph, and selecting an optimal operation path in the weighted operator topology graph.

Abstract: An encrypted model file is acquired by encrypting at least a part of model information in an original model file. The original model file describes a target neural network model. A model program code is generated according to the encrypted model file. The model program code describes the target neural network model. An installation package for installing an application (APP) is sent to a User Equipment (UE) based on a request sent by the UE. The installation package includes the model program code.