TABLE 5. The Data Sources and Properties of the Second-Level Index.
| Variables | Second-level | Data sources | Properties |
|---|---|---|---|
| X1 | Search | Baidu index | Positive; Quantitative |
| X2 | Media | Weibo advanced search | Positive; Quantitative |
| X3 | Media release | Baidu index | Positive; Quantitative |
| X4 | Original tweets | Weibo advanced search | Positive; Quantitative |
| X5 | Comment and retweet | weibo-public-opinion-datasets | Positive; Quantitative |
| X6 | Thumb up | weibo-public-opinion-datasets | Positive; Quantitative |
| X7 | User influence | weibo-public-opinion-datasets | Positive; Quantitative |
| X8 | Change in Search | another second-level index | Positive; Quantitative |
| X9 | Change in Original tweets | another second-level index | Positive; Quantitative |
| X10 | Change in Comment and retweet | another second-level index | Positive; Quantitative |
| X11 | Change in Thumb up | another second-level index | Positive; Quantitative |
| X12 | Visual | Weibo advanced search | Positive; Quantitative |
| X13 | Authenticity | Weibo advanced search | Positive; Quantitative |