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Table 4 Results for SVM classification

From: OMG U got flu? Analysis of shared health messages for bio-surveillance

  P R F1
  A   
UNI 0.70 0.66 0.68
UNI+SRL 0.72 0.69 0.70
UNI+BI 0.71 0.70 0.70
UNI+BI+SRL 0.71 0.71 0.71
  I   
UNI 0.62 0.70 0.66
UNI+BI 0.61 0.59 0.60
  P   
UNI 0.65 0.84 0.73
UNI+SRL 0.65 0.85 0.74
UNI+BI 0.67 0.77 0.72
UNI+BI+SRL 0.67 0.78 0.72
  W   
UNI 0.15 0.06 0.09
UNI+SRL 0.25 0.16 0.19
UNI+BI 0.15 0.06 0.09
UNI+BI+SRL 0.31 0.16 0.21
  S   
UNI 0.64 0.59 0.61
UNI+SRL 0.68 0.72 0.70
UNI+BI 0.74 0.54 0.63
UNI+BI+SRL 0.78 0.60 0.67
  1. F1 results for tweet classification using SVM. UNI = unigram, BI = bigram, SRL = Simple Rule Language regular expression