Analysis and forecast on public opinion of Gansu Analysis and judgment of public opinion of blog Analysis and forecast on economic development of gansu Analysis and forecast on economic development of Gansu Analysis and forecast on social development of Gansu Analysis and forecast on cultural development of Gansu 并列题名：Analysis and judgment of public opinion of blog Analysis and forecast on social situation of Guangzhou in China Analysis and application of public opinion in the era of big data 并列题名：Analysis and application of public opinion in the era of big data