Research on knowledge cooperation among enterprises in innovation networks 并列题名：Research on knowledge cooperation among enterprises in innovation networks Research on knowledge spillover of large enterprise in innovation network 并列题名：A research on knowledge spillover of large enterprise in innovation network Research on multi-agent cooperation innovation mechanism in enterprise cluster innovation network Research on innovation performance of large enterprise dominant innovation network Tacit knowledge learning and enterprise innovation research 并列题名：Research on multi-agent cooperation innovation mechanism in enterprise cluster innovation network Impact of knowledge network on enterprise innovation 并列题名：Research on innovation performance of large enterprise dominant innovation network