POP-CNN: Predicting Odor's Pleasantness with Convolutional Neural Network
This work addresses odor evaluation for applications in perfumes and environmental monitoring, representing an incremental improvement over classical methods.
The paper tackled the problem of predicting odor pleasantness by replacing manual feature extraction with a convolutional neural network, achieving over 90% correlation with human ratings and 99.9% accuracy in distinguishing absolutely pleasant or unpleasant odors.
Predicting odor's pleasantness simplifies the evaluation of odors and has the potential to be applied in perfumes and environmental monitoring industry. Classical algorithms for predicting odor's pleasantness generally use a manual feature extractor and an independent classifier. Manual designing a good feature extractor depend on expert knowledge and experience is the key to the accuracy of the algorithms. In order to circumvent this difficulty, we proposed a model for predicting odor's pleasantness by using convolutional neural network. In our model, the convolutional neural layers replace manual feature extractor and show better performance. The experiments show that the correlation between our model and human is over 90% on pleasantness rating. And our model has 99.9% accuracy in distinguishing between absolutely pleasant or unpleasant odors.