His main efforts have been made on studying reallife challenges-driven data science foundations (esp. complex data, behaviors and systems) and better enterprise data science innovation and decision-making (esp. on real-life big data analytics issues for many governmental and industrial organizations inside and outside Australia, including capital markets, social warfare, taxation, immigration, financial service, telecommunication, banking, insurance, airline business, transport, and education). Their work has led to significant savings ($Bn) for relevant organizations and strong impact and benefits recognized in governmental reports, media articles/program and OECD report.