Patent ID: 11927448
Assignee: NAVER CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. A computer-implemented method of training a neural network module to estimate a position of a portable electronic device within an indoor environment, the computer-implemented method comprising:
training, with sensor training data, a motion classifier module of the neural network module to determine a present user activity,
wherein the sensor training data includes inertial sensor data captured while a portable electronic device moved along a path within one or more indoor environments;
training, with the sensor training data, a landmark classifier module of the neural network module to detect landmarks within one or more indoor environments;
generating labels and annotating the sensor training data with the labels, the generating the labels including generating the labels based on user activities determined by the motion classifier and landmarks detected by the landmark classifier; and
further training the neural network module based on (a) the sensor training data and (b) the labels, respectively.