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Table 1 Machine learning system evaluation on 500 randomly selected tweets from the unannotated tweets corpus

From: Leveraging machine learning-based approaches to assess human papillomavirus vaccination sentiment trends with Twitter data

Category Precision Recall F measure
Overall Micro-averaging 0.7860 0.7860 0.7860
Macro-averaging 0.7112 0.7051 0.7081
Per Category Unrelated 0.9337 0.9482 0.9409
Related Positive 0.6596 0.8774 0.7530
Neutral 0.7586 0.5690 0.6502
Negative Safety 0.8039 0.6308 0.7069
Others 0.4000 0.5000 0.4444