Object Categorization at the Higher Levels Do with More Neurons than Finer Levels and Takes Faster

Mohammad Hossein Karimi, Reza Ebrahimpour, Nasour Bagheri.
2020 IEEE Access  
Humans can categorize an object in three ways. For example, a car can be categorized as vehicles (superordinate), ground vehicles (basic), or cars (subordinate). Different semantic levels of categorization are referred to these three categorization modes. There are different speeds and accuracies for a similar object in the classification of these levels. However, much research has been done in this context, the trend of these levels is still questionable as to the accuracy and reaction time
more » ... the reason for this difference. In this paper, we examine the order of these levels and the reason for their differences. We show the superordinate advantage is declared, and after this level, the base level and subordinate level are expressed, respectively. To this end, first, we design an experiment to examine the semantic levels in the human eye system. The result of this experiment is the superordinate advantage. In fact, at the superordinate level at the same time, the reaction time was lower than other levels, and the efficiency was higher than other levels. Besides, a computational model is introduced that has time and can classify semantic levels. The model is trained for ten categories in this study. These ten categories are considered a subordinate level, and five levels of basic and two levels of superordinate are expressed. We found that at higher levels such as superordinate, more neurons participate in the clustering task, so the outcome is faster and more accurate results. Moreover, the proposed model was tested for inverted input images to verify the model.
doi:10.1109/access.2020.2966507 fatcat:ok7wbyd33bhypcwbznuovbrv4q