Before revision:  We use a different approach to predict patent classification by finding top k similar patent claims and using the KNNalgorithm to predict patent class or subclass. Besides, in this study, we just focus on patent claims, and in the future study, we add other appropriate parts of patent documents. Findings: The findings suggest the relevance of hybrid models to predict multi-label classification based on text data.
After revision:  We use a different approach to predict patent classification based on text data.