Comparative evaluation of performance of national R&D programs with heterogeneous objectives: A DEA approach. - Hakyeon Lee; Yongtae Park; Hoogon Choi (Eur. J. Oper. Res., 2009)

An ANP-based technology network for identification of core technologies: A case of telecommunication technologies. - Hakyeon Lee; Chulhyun Kim; Hyunmyung Cho; Yongtae Park (Expert Syst. Appl., 2009)

Selection of technology acquisition mode using the analytic network process. - Hakyeon Lee; Sora Lee; Yongtae Park (Math. Comput. Model., 2009)

Evaluation and management of new service concepts: An ANP-based portfolio approach. - Hakyeon Lee; Chulhyun Kim; Yongtae Park (Comput. Ind. Eng., 2010)

Identifying core technologies based on technological cross-impacts: An association rule mining (ARM) and analytic network process (ANP) approach. - Chulhyun Kim; Hakyeon Lee; Hyeonju Seol; Changyong Lee (Expert Syst. Appl., 2011)

Implementing technology roadmapping with supplier selection for semiconductor manufacturing companies. - Jeonghwan Jeon; Hakyeon Lee; Yongtae Park (Technol. Anal. Strateg. Manag., 2011)

Evaluation of new service concepts using rough set theory and group analytic hierarchy process. - Changyong Lee; Hakyeon Lee; Hyeonju Seol; Yongtae Park (Expert Syst. Appl., 2012)

A database-centred approach to the development of new mobile service concepts. - Chulhyun Kim; Hakyeon Lee (Int. J. Mob. Commun., 2012)

Analysis and visualisation of structure of smartphone application services using text mining and the set-covering algorithm: a case of App Store. - Yongyoon Suh; Hakyeon Lee; Yongtae Park (Int. J. Mob. Commun., 2012)

Benchmarking of service quality with data envelopment analysis. - Hakyeon Lee; Chulhyun Kim (Expert Syst. Appl., 2014)

Measuring journal performance for multidisciplinary research: An efficiency perspective. - Hakyeon Lee; Juneseuk Shin (J. Informetrics, 2014)

A hybrid Bass-Markov model for the diffusion of a dual-type device-based telecommunication service: The case of WiBro service in Korea. - Youngkeun Song; Sungjoo Lee; Hangjung Zo; Hakyeon Lee (Comput. Ind. Eng., 2015)

Measuring and comparing the R&D performance of government research institutes: A bottom-up data envelopment analysis approach. - Seonghee Lee; Hakyeon Lee (J. Informetrics, 2015)

Uncovering the multidisciplinary nature of technology management: journal citation network analysis. - Hakyeon Lee (Scientometrics, 2015)

Identifying the structure of knowledge networks in the US mobile ecosystems: patent citation analysis. - Sanghoon Lee; Wonjoon Kim; Hakyeon Lee; Jeonghwan Jeon (Technol. Anal. Strateg. Manag., 2016)

An analytic network process approach to partner selection for acquisition and development. - Jeonghwan Jeon; Jieun Kim; Yongtae Park; Hakyeon Lee (Technol. Anal. Strateg. Manag., 2017)

Developing ecological index for identifying roles of ICT industries in mobile ecosystems: The inter-industry analysis approach. - Yongyoon Suh; Hakyeon Lee (Telematics Informatics, 2017)

Integrating cluster validity indices based on data envelopment analysis. - Boseop Kim; Hakyeon Lee; Pilsung Kang 001 (Appl. Soft Comput., 2018)

Predicting the degree of interdisciplinarity in academic fields: the case of nanotechnology. - Woo-seok Jang; Heeyeul Kwon; Yongtae Park; Hakyeon Lee (Scientometrics, 2018)

A patent-based approach for the identification of technology-based service opportunities. - Chulhyun Kim; Hakyeon Lee (Comput. Ind. Eng., 2020)

What IoT devices and applications should be connected? Predicting user behaviors of IoT services with node2vec embedding. - Seonghee Kim; Yongyoon Suh; Hakyeon Lee (Inf. Process. Manag., 2022)

A knowledge tracing-like approach to modeling dynamic user preferences. - Jungmin Hwang; Hakyeon Lee (IEEM, 2024)

Business model generation with link prediction. - Saerom Lee; Hakyeon Lee (IEEM, 2024)

An embedding inversion approach to interpretation of patent vacancy. - Sungsoo Lee; Hakyeon Lee; Jeonghwan Jeon (IEEM, 2024)

What should be offered for free and what for premium in a freemium service? a two-stage approach of Kano & path analysis to the design of freemium services. - Saerom Lee; Chulhyun Kim; Hakyeon Lee (Technol. Anal. Strateg. Manag., 2024)

Translate patent vacancies into human-readable texts: Identifying technology opportunities with text embedding inversion. - Sungsoo Lee; Hyoduk Shin; Hakyeon Lee (Adv. Eng. Informatics, 2025)

From knowledge tracing to preference tracing: Capturing dynamic user preferences for personalized recommendation. - Jungmin Hwang; Hakyeon Lee (Electron. Commer. Res. Appl., 2025)

How do fandom types differ? A taxonomy of K-pop fandom with network embedding. - Soyeon Jin; Saerom Lee; Hakyeon Lee (Entertain. Comput., 2025)