Table 1.
Results of retrieval precision testing and retesting with a sample size of 300 posts analyzed per subcategory.
| Subcategory | Posts retrieved by the taxonomy category search human-coded as true positives and retrieval precision rate, n (%) |
| The Cause – The Cause | 217 (72.3) |
| The Cause – Further Spread – Stigma | 260 (86.7) |
| The Cause – Further Spread – Immunity | 245 (81.7) |
| The Illness – Confirmed Symptoms | 189a (63)/239b (79.7) |
| The Illness – Other Discussed Symptoms | 141a (47)/218b (72.7) |
| The Illness – Asymptomatic | 300 (100) |
| The Illness – Presymptomatic | 300 (100) |
| The Illness – Means of Transmission | 295 (98.3) |
| The Illness – Protection From Transmission | 299 (99.7) |
| The Illness – Underlying Conditions | 238 (79.3) |
| The Illness – Demographics – Sex | 215 (71.7) |
| The Illness – Demographics – Age | 215 (71.7) |
| The Illness – Vulnerable People | 287 (95.7) |
| The Illness – Vulnerable Communities | 269 (89.7) |
| Treatment – Vaccines | 300 (100) |
| Treatment – Current Treatment | 144a (48)/224b (74.7%) |
| Treatment – Research & Development | 290 (96.7) |
| Treatment – Nonproven Treatment (Nutrition) | 245 (81.7) |
| Treatment – Myths | 126a (42)/221b (73.7) |
| Interventions – Measures in Public Settings | 243 (81) |
| Interventions – Testing | 280 (93.3) |
| Interventions – Supportive Care – Equipment | 204a (68)/257b (85.7%) |
| Interventions – Supportive Care – Health Care | 289 (96.3) |
| Interventions – Personal Measures | 298 (99.3) |
| Interventions – Reduction of Movement | 256 (85.3) |
| Interventions – Protection | 276 (92) |
| Interventions – Technology | 278 (92.7) |
| Interventions – Travel | 250 (83.3) |
| Interventions – Faith | 201a (67)/269b (89.7) |
| Interventions – Unions and Industry | 223 (74.3) |
| Interventions – The Environment | 183a (61)/290b (96.7) |
| Interventions – Inequalities | 280 (93.3) |
| Interventions – Civil Unrest | 280 (93.3) |
| Information – Misinformation | 273 (91) |
| Information – Statistics | 244 (81.3) |
aIndicates a taxonomy subcategory search that performed below minimum requirements and was subsequently updated and retested to yield better performance.
bNumber and percentage of posts in the sample coded as true positives in the retesting of the taxonomy subcategory search following the update.