Research on network economics based on big data 并列题名:Research on network economics based on big data research on regional economic development in Guangxi Research on China's Internet governance and policy analysis based on big data research on China's economic potentialities Research on tourism big data research on product design methods based on sharing concept international and cross-sector comparison based on big data Research on evidence-based decision-making of health services based on big data Research on brand evaluation method based on multi-source data