FIGURE 1.

The schematic architecture of the fully connected artificial neural network (ANN) for classification models using Raman spectra. Follicular fluid of PCOS patient were collected and transferred onto an aluminum slide, and tested using Raman spectroscopy. Two full-connection layers were selected for constructing the ANN models in this study. The structure of the ANN included one input layer, 2 hidden layers that contained 64 neurons and 64 neurons, as well as one output layer. The algorithm and principle of the ANN model in details can be found in the Materials and Methods section.