Ki-Hun Kim

ORCID: 0000-0001-9882-0389
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About
Contact & Profiles
Research Areas
  • Customer Service Quality and Loyalty
  • Service and Product Innovation
  • Mobile Health and mHealth Applications
  • Technology Adoption and User Behaviour
  • Hepatocellular Carcinoma Treatment and Prognosis
  • Physical Activity and Health
  • Cardiovascular Syncope and Autonomic Disorders
  • Digital Marketing and Social Media
  • Thyroid Disorders and Treatments
  • Digital Transformation in Industry
  • Manufacturing Process and Optimization
  • Quality and Supply Management
  • Heart Rate Variability and Autonomic Control
  • Innovation in Digital Healthcare Systems
  • Health and Wellbeing Research
  • Human Mobility and Location-Based Analysis
  • Consumer Perception and Purchasing Behavior
  • Genetic and Kidney Cyst Diseases
  • Cholangiocarcinoma and Gallbladder Cancer Studies
  • Crime Patterns and Interventions
  • Body Composition Measurement Techniques
  • Technology Use by Older Adults
  • IoT and Edge/Fog Computing
  • Organ Transplantation Techniques and Outcomes
  • Sentiment Analysis and Opinion Mining

Asan Medical Center
2021-2025

University of Ulsan
2025

Pusan National University
2021-2024

Ulsan National Institute of Science and Technology
2020-2021

Delft University of Technology
2020-2021

Pohang University of Science and Technology
2015-2018

University of California, Merced
2016

Inje University Haeundae Paik Hospital
2012

Service is a key context for the application of IT, as IT digitizes information interactions in service and facilitates value creation, thereby contributing to innovation. The recent proliferation big data provides numerous opportunities information-intensive services (IISs), which exert greatest effect on creation. In modern data-rich economy, understanding mechanisms related factors data-based creation IISs essential using improve such services. This study identified nine that characterize...

10.1016/j.ijinfomgt.2017.12.007 article EN cc-by International Journal of Information Management 2017-12-15

The concept of digital twins has great potential for transforming the existing health care system by making it more personalized. As a convergence care, artificial intelligence, and information communication technologies, personalized services that are developed under raise myriad ethical issues. Although some issues known to researchers working on medicine, currently, there is no comprehensive review maps major risks services.This study aims fill research gap identifying services. We first...

10.2196/33081 article EN cc-by Journal of Medical Internet Research 2021-11-17

Purpose The proliferation of (big) data provides numerous opportunities for service advances in practice, yet research on using to advance is at a nascent stage the literature. Many studies have discussed phenomenological benefits service. However, limited describes managerial issues behind such benefits, although holistic understanding essential practice and basis future research. purpose this paper address gap. Design/methodology/approach “Using service” about change organizations. Thus,...

10.1108/jstp-08-2016-0141 article EN cc-by Journal of Service Theory and Practice 2017-11-29

Purpose The proliferation of customer-related data provides companies with numerous service opportunities to create customer value. purpose this study is develop a framework use provide services. Design/methodology/approach This conducted four action research projects on the for design industry and government. Based these projects, practical was designed, applied, validated, further refined by analyzing relevant cases incorporating operations management literature. Findings proposed process...

10.1108/josm-02-2017-0031 article EN Journal of service management 2018-12-04

Aggressive driving behavior (ADB) is a major cause of traffic accidents. As ADB controllable, ADB-based risk assessment an effective method for drivers and transportation companies to ensure safety. Conventionally, the relationships between ADBs accident-related records are analyzed when assessing risk. However, such typically overlook driver responsibility risks depend considerably on person producing data (e.g., police officers or insurance managers). Foremost, conventional approaches do...

10.1109/tits.2022.3193125 article EN cc-by-nc-nd IEEE Transactions on Intelligent Transportation Systems 2022-08-02

Background: In the current “sickest first” allocation policy for limited deceased liver grafts, identifying patients “too sick to transplant” before transplantation is crucial optimize outcomes. This study aimed predict futile outcomes following donor (DDLT) in with Model End-Stage Liver Disease-Sodium (MELD-Na) scores ≥30. Methods: international multicenter was conducted as part of International Society Surgeons. We collected data from a MELD-Na score ≥30 who underwent DDLT. A total 994...

10.1097/js9.0000000000002280 article EN cc-by-nc-nd International Journal of Surgery 2025-02-05

Less morbidity is considered among the advantages of laparoscopic liver resection (LLR) for HCC patients. However, our previous international, multi-institutional, propensity score-based study emerging repeat (LRLR) failed to prove this advantage. We hypothesize that these results may be since included complex LRLR cases performed during procedure’s developing stage. To examine it, subgroup analysis based on score were performed, defining proximity tumors major vessels as indicator cases....

10.3390/cancers13133187 article EN Cancers 2021-06-25

Service design is a multidisciplinary area that helps innovate services by bringing new ideas to customers through design-thinking approach. Services are affected multiple factors, which should be considered in designing services. In this paper, we propose the multi-factor service (MFSD) method, consider nature of process. The MFSD method has been developed and used five studies with industry government. addresses for systematic providing following guidelines: (1) identify key factors affect...

10.1007/s11628-018-0363-z article EN cc-by Service Business 2018-02-02

Various types and massive amounts of data are being collected through physical social sensing. In many cases use, the results value analytics conveyed to specific beneficiaries (e.g., individuals organizations) within a service system, such as transportation, energy supply, or healthcare system. Thus, data-use can be directed improved based on considerations relevant this paper, we suggest that effective use guided by question, “How does contribute creation smarter system?” To facilitate...

10.1109/indin.2016.7819295 article EN 2022 IEEE 20th International Conference on Industrial Informatics (INDIN) 2016-07-01

Background A lifelogs-based wellness index (LWI) is a function for calculating scores based on health behavior lifelogs (eg, daily walking steps and sleep times collected via smartwatch). score intuitively shows the users of smart services overall condition their behaviors. LWI development includes estimation (ie, estimating coefficients in with data). panel data set comprising allows to control unobserved variables, thereby resulting less bias. However, these sets typically have missing due...

10.2196/20597 article EN cc-by JMIR Medical Informatics 2020-10-18

Monitoring of dual service failures (e.g., trends in and consecutive failures) business is emphasized for quality management. Previous studies analyzing negative online reviews to conduct failure monitoring from a managerial perspective are scarce. Numerous useful sources because they can be easily collected at low cost. This article proposes data-driven approach monitor reviews. In the proposed approach, first classifier developed categorize newly into by Latent Dirichlet allocation....

10.1177/2158244020988249 article EN cc-by SAGE Open 2021-01-01

Laparoscopic liver resection has become an increasingly popular operation but is still in relatively limited use. Here we evaluate the intermediate-term results of laparoscopic resection.Fifty-seven patients with HCC underwent at Asan Medical Center. Data for all resections were recorded and analyzed retrospectively. Patient gender, age, preoperative laboratory data, presence cirrhosis, blood loss, hospital stay length, pathology report, tumor site size, type, margin, morbidity mortality...

10.5754/hge12962 article EN PubMed 2012-10-31

A 75-year-old man was admitted to our hospital with syncope. Electrocardiogram showed complete atrioventricular block and bradycardia the minimum heart rate of 22 beats/ min. There a possible indication for temporary cardiac pacemaker implantation. Laboratory data on admission revealed high TSH level low free T4 level. To rule out functional block, we treated several days thyroxine. follow-up electrocardiogram improved without any block. We found that severe hypothyroidism caused syncope,...

10.4021/cr221w article EN cc-by-nc Cardiology Research 2012-01-01

Smart wellness services collect various types of lifelog data, such as the number steps taken and sleep duration, via smart devices. However, most existing simply display each individual to users, limiting their ability support overall user understanding. In this article, authors develop a lifelogs-based daily score (LDWS) resolve limitations by combining data calculate that represents health behaviors. LDWS was developed part service for college students in collaboration with an IT company....

10.1287/serv.2018.0216 article EN Service Science 2018-12-01

Heart rate (HR) monitored by a wearable device (WD) has demonstrated its clinical feasibility for thyrotoxicosis subjects. However, the association of HR wearables with hypothyroidism not been examined. We assessed between serum thyroid hormone concentration and three WD-HR parameters in hypothyroid subjects.Forty-four subjects scheduled radioactive iodine therapy (RAI Tx) after cancer surgery were included. Thirty prepared RAI Tx withdrawal (hypothyroidism group) 14 recombinant human...

10.3803/enm.2021.1216 article EN cc-by-nc Endocrinology and Metabolism 2021-10-22

The South Korean government retains valuable health-related data for nearly all citizens. This set includes insurance data, diagnosis history treatment and medical examination data. article presents a case study with the National Health Insurance Service of Korea to develop service concepts that utilize such A concept indicates what offer customers how it. In study, 138 ideas were generated based on literature focus group interviews 14 experts. evaluated by 20 experts via interviews. Eight...

10.1080/24725579.2018.1502221 article EN IISE Transactions on Healthcare Systems Engineering 2018-07-26

To evaluate the potential of incorporating respiratory muscle strength, specifically maximal inspiratory pressure (MIP), and expiratory (MEP), along with traditional sarcopenia screening measures such as hand grip strength (HGS) skeletal mass index (SMI), to identify in older men.

10.5534/wjmh.240102 article EN cc-by-nc The World Journal of Men s Health 2024-01-01

45% of mHealth service users stopped using the because its poor quality. Accordingly, a recent study identified critical quality factors for continuance intention (CI) an called Onecare. The literature has rarely investigated generalizability results to other services although Onecare corresponds one types, mobile lifestyle management service. This investigates by identifying CI Glandy, disease estimated effects five (i.e., content quality, engagement, reliability, usability, and privacy) on...

10.7232/jkiie.2023.49.2.187 article EN Journal of Korean Institute of Industrial Engineers 2023-04-15

<sec> <title>BACKGROUND</title> A lifelogs-based wellness index (LWI) is a function for calculating scores based on health behavior lifelogs (eg, daily walking steps and sleep times collected via smartwatch). score intuitively shows the users of smart services overall condition their behaviors. LWI development includes estimation (ie, estimating coefficients in with data). panel data set comprising allows to control unobserved variables, thereby resulting less bias. However, these sets...

10.2196/preprints.20597 preprint EN 2020-05-22

<sec> <title>BACKGROUND</title> The concept of digital twins has great potential for transforming the existing health care system by making it more personalized. As a convergence care, artificial intelligence, and information communication technologies, personalized services that are developed under raise myriad ethical issues. Although some issues known to researchers working on medicine, currently, there is no comprehensive review maps major risks services. </sec> <title>OBJECTIVE</title>...

10.2196/preprints.33081 preprint EN 2021-08-23
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