Public opinion management in the age of big data Public opinion management in the era of social media 并列题名：Public opinion management in the era of social media Human resource management in the era of big data Public art in the age of big data Public opinion management of major projects Human resource management in the background of big data 并列题名：Human resource management in the era of big data staying human in the age of big data 并列题名：Human resource management in the background of big data