Hierarchically Structured Recommender System for Improving NPS of a Company. - Jieyan Kuang; Albert Daniel; Jill Johnston; Zbigniew W. Ras (RSCTC, 2014)

In Search for Best Meta-Actions to Boost Businesses Revenue. - Jieyan Kuang; Zbigniew W. Ras (FQAS, 2015)

Personalized Meta-Action Mining for NPS Improvement. - Jieyan Kuang; Zbigniew W. Ras; Albert Daniel (ISMIS, 2015)

Hierarchical Agglomerative Method for Improving NPS. - Jieyan Kuang; Zbigniew W. Ras; Albert Daniel (PReMI, 2015)

User Friendly NPS-Based Recommender System for Driving Business Revenue. - Zbigniew W. Ras; Katarzyna A. Tarnowska; Jieyan Kuang; Lynn Daniel; Doug Fowler (IJCRS (1), 2017)