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Table 4 Example of the BoT classifier

From: A multisource fusion framework driven by user-defined knowledge for egocentric activity recognition

Activity ζk with the entropy-based TF-IDF value
1 2 3 4 5 6
Computer use Keyboard Monitor Screen Internet Electronics Laptop
0.4328 0.3792 0.3255 0.3127 0.3071 0.2662
Eating Food Drink Restaurant Dinner Cooking Bowl
0.3678 0.3286 0.3240 0.2894 0.2594 0.2361
Shopping Stock Market Shopping Shop Merchandise Supermarket
0.4216 0.4185 0.4079 0.3363 0.2724 0.2373
Washing up Bathroom Wash Bath Hygiene Faucet Bathtub
0.4955 0.4375 0.2879 0.2859 0.2789 0.2699  
Transportation Dashboard Steering wheel Control Fast Drive Driver
0.2769 0.2769 0.2733 0.2716 0.2696 0.2669