Abstract: An information acquisition and public sentiment analysis system for the city public Wi-Fi wireless networks was presented, which uses the petaflops computing platform in National Supercomputer Center in Ji nan. Based on the non-intervention wireless packets capture technology, Web page recovery and fault tolerant rcassembly technology, multiple text data mining technology and mass data process technology, the system can implement the functionality of wireless network forensics, public sentiment analysis and prediction, and provide overall and accurate references for the guidance of public sentiment for the government.

Key words: Supercomputer, Wireless network, Information acquisition, Public sentiment analysis