| Principle of profession |
The network public opinion indicators involve many disciplines. The selection of indicators should conform to the workflow of public opinion early warning, and in principle, should be consistent with the research topic or major. |
| Principle of quantification |
When selecting indexes, we should try to choose indexes that can be quantified and described objectively. |
| Principle of practicality |
In the theoretical sense, internet public opinion indicators are often arduous to define. In the selection of indicators, it is indispensable to consider the operability of indicators, which cannot be limited within the theoretical scope to make it infeasible to quantify the indicators. |
| Principle of importance |
The network public opinion covers a wide range. Therefore, there is generally an ocean of influencing factors related to public opinion. If the comprehensiveness of early warning indicators is considered, the redundancy will be high and will inevitably lead to the overlapping of indicators. Therefore, the main influencing index are selected. |
| Principle of economy |
The selection of indicators should be within a certain range of acquisition ability, so as to avoid paying a great price in the face of great difficulty in obtaining indicators. |
| Principle of sensitive |
It is required that the index should enjoy good sensitivity, and can demonstrate the change trend or value according to the development degree of the event in time, so as to avoid the selection of the warning index with underdeveloped sensitivity. |
