접근 이력 기반의 하이브리드 세런디피티 추천 시스템

김영현, 한재윤, & 이경전. (2015). 접근 이력 기반의 하이브리드 세렌디피티 추천 시스템. 한국지능정보시스템학회 학술대회논문집, 28-28. (link)

ABSTRACT

본 연구에서는 사용자의 아이템 접근 이력에 기반한 하이브리드 세렌디피티 추천 시스템을 제안한다. 사용자가 접근하지 않은 아이템에 대한 선호도 예측에 관한 연구는 활발히 진행되었으나, 사용자에게 세렌디피티를 느낄 수 있게 하는 추천 시스템에 대한 연구는 여전히 해결해야 할 과제이다. 또한 아마존이나 넷플릭스와 같은 다양한 분야에서 널리 활용되고 있는 협업 필터링 기법은 새로운 사용자나 새로운 아이템을 추천 결과에 반영할 수 없는 콜드 스타트 (cold start) 문제를 가지고 있다. 따라서 본 연구에서는 콜드 스타트 문제를 해결함과 동시에 세렌디피티 추천 서비스를 가능하게 하는 하이브리드 세렌디피티 추천 시스템을 제안한다. 본 시스템은 두 가지의 추천 기법으로 이뤄지고, 각각은 사용자의 주위 환경에 따라 최적의 아이템을 추천하는 상황 기반 추천 기법과, 사용자의 최근의 아이템 접근 이력에 기반한 아이템 접근 이력 기반 추천 기법으로 동작한다. 다시, 접근 이력 기반 추천 기법에서는 사용자들의 아이템 접근 이력에 따라 각각의 사용자가 세렌디피티 서비스를 즐기는 사용자인지 아닌지를 판단하여, 사용자의 특징에 따라 추천하는 아이템을 다르게 설계한다. 본 연구에서 제안한 기법은 오픈 소스 (open source)인 Apache Mahout과 Apache Hadoop을 이용하여 개발하였으며, 시뮬레이션 결과 본 연구의 주요 목적 중 하나인 세렌디피티 성능은 기존의 일반적인 추천 기법보다 적어도 2배 이상으로 향상된 것을 확인하였다.

Examining Online to Offline Tourism Service Using Near Field Communication: Motivation-Opportunity-Ability Framework Perspective

Han, H., Park, A., Chung, N., & Lee, K. J. (2015). Examining Online to Offline Tourism Service Using Near Field Communication. 한국지능정보시스템학회 학술대회논문집, 11-11. (link)

ABSTRACT

Due to the utilization of advanced smart technologies and online-to-offline or offline-to-online (O2O) marketing, near field communication (NFC) has been adopted in many Expositions (Expos) in recent years. This is aimed at increases in Expo experiences by visitors and the vitality of NFC use. Thus, this study focused on the Motivation-Opportunity-Ability framework and satisfactiontransfer of visitors who perform information processing using NFC to understand reuse intention of NFC and loyalty to Expo. More specifically, we constructed a research model assuming that the motivation of NFC use was set as information quality, opportunity factor as organizational support for using NFC from Expo, and ability factor as self-efficacy respectively and the above factors would influence the NFC value and NFCsatisfaction directly and then the NFC value would influence satisfaction to NFC and the Expo, which would then influence reuse intention of NFC and loyalty to the Expo accordingly. A survey was conducted with 309 visitors using NFC in Osong Beauty Expo to analyze the results empirically. The result showed that information quality, organizational support from the Expo, and self-efficacy influenced perceived NFC value and information quality and organizational support from the Expo influenced the satisfaction to NFC. On the other hand, self-efficacy did not influence the satisfaction to NFC. Furthermore, the perceived NFC value influenced satisfaction to NFC and the Expo and the satisfaction to NFC also influenced satisfaction to Expo. The study result also showed that satisfaction to NFC affected the reuse intention of NFC and the satisfaction to Expo induced loyalty to Expo. Based on the above results, this study contributed to expansion of scope of study on NFC as it proved the need of utilization on NFC as well as proposing the importance of NFC value practically.

IoT 기반의 O2O 박물관 시스템 구축 사례 연구

박아름, 전정호, & 이경전. (2015). IoT 기반의 O2O 박물관 시스템 구축 사례 연구. 한국지능정보시스템학회 학술대회논문집, 8-8. (link)

ABSTRACT

NFC, iBeacon과 같은 새로운 기술이 출시되면서 IoT 기술이 결합된 O2O 서비스가 생활 전반에 거쳐 출시되고 있으며 접목되면서 문화.생활 분야에도 이러한 변화가 감지되고 있다. 본 연구는 사물인터넷의 대표적인 기술인 NFC와 iBeacon 기술을 기반으로 한 다양한 박물관 서비스 모델을 개발하고 시스템을 구축하고자 한다. 박물관은 관람객들의 경험을 개선하기 위해 끊임없이 새로운 시도를 하고 있으며, 최근에는 NFC, iBeacon, AR 등 다양한 기술을 이용한 서비스를 제공하고 있다. 본 연구에서 제시하는 NFC와 iBeacon기반의 서비스는 관람객이 자신이 소유하고 있는 스마트폰을 통해 전시물에 대한 정보를 음성과 이미지 등 다양한 형태의 콘텐트로 정보를 획득하고 온라인으로 공유할 수 있다. 기존 박물관에서의 관람객은 박물관에서 제공하는 팜플렛이나 도슨트 등을 통해 정보를 획득하고 소비하는데 그쳤다. 즉, 온라인으로 확장되지는 못하고 오프라인에서의 활동으로 그친다는 점에서 본 연구에서 제시한 O2O 박물관 서비스와 큰 차이가 있다. 온라인으로 공유된 컨텐트는 박물관으로 다른 관람객들을 끌어들임으로서 박물관 관점에서 마케팅 효과에도 큰 도움이 된다고 할 수 있다.
본 사례는 박물관에서 NFC와 iBeacon을 이용하여 시스템을 구축한 최초의 사례로, 개발 및 구축과정에서 발생되는 다양한 이슈를 제시하고 더불어 사물인터넷 기술로 얻어질 수 있는 많은 데이터를 어떻게 활용될 수 있는지 데이터의 가치 활용 방안을 제시하고자 한다. 이를 위해 시스템 구축을 위한 방법론은 시스템 개발 생명주기 방법론(SDLC)을 채택하였으며, 타당성 조사 → 시스템 분석 → 시스템 설계 → 시스템 구축 순으로 연구하였다.

Case Study on the Enterprise Microblog Usage: Focusing on Knowledge Learning

Park, A., Kang, M. S., & Lee, K. J. (2015). Case Study on the Enterprise Microblog Usage: Focusing on Knowledge Learning. In PACIS (p. 37). (link)

ABSTRACT

Knowledge Management Strategy can be classified by codification strategy and personalization strategy (Hansen et. al., 1999), and how to manage the two strategies were always studied. Also, current studies regarding the knowledge management strategy were targeted mostly for major companies, resulting in lack of studies in how it can be applied on SMEs. This research, with the knowledge management strategy suited for SMEs, sets an Enterprise Microblog (EMB), and with the EMB applied on SMEs’ Knowledge Management Strategy, it is reviewed on the perspective of SMEs’ Codification and Personalization Strategies. Through the advanced research regarding Knowledge Management Strategy and EMB, the hypothesis is set that “Depending on the development of the company, the main application of EMB alters from Codification Strategy to Personalization Strategy.” To check the hypothesis, SME that have used the EMB called ‘Yammer’ was analyzed from the data of their foundation until today. The case study has implemented longitudinal analysis which divides the period when the EMBs were used into three stages and analyzes the contents. As the result of the study, this suggests a substantial implication regarding the application of Knowledge Management Strategy and its Knowledge Management System that is suitable for SME.

Critical Success Factor of Noble Payment System

Park, A., & Lee, K. J. (2014). Critical Success Factor of Noble Payment System. 지능정보연구, 20(4), 59-87. (link)

ABSTRACT

In MIS field, the researches on payment services are focused on adoption factors of payment service using behavior theories such as TRA(Theory of Reasoned Action), TAM(Technology Acceptance Model), and TPB (Theory of Planned Behavior). The previous researches presented various adoption factors according to types of payment service, nations, culture and so on even though adoption factors of identical payment service were presented differently by researchers. The payment service industry relatively has strong path dependency to the existing payment methods so that the research results on the identical payment service are different due to payment culture of nation.
This paper aims to suggest a successful adoption factor of noble payment service regardless of nation’s culture and characteristics of payment and prove it. In previous researches, common adoption factors of payment service are convenience, ease of use, security, convenience, speed etc. But real cases prove the fact that adoption factors that the previous researches present are not always critical to success to penetrate a market. For example, PayByPhone, NFC based parking payment service, successfully has penetrated to early market and grown. In contrast, Google Wallet service failed to be adopted to users despite NFC based payment method which provides convenience, security, ease of use.
As shown in upper case, there remains an unexplained aspect. Therefore, the present research question emerged from the question: “What is the more essential and fundamental factor that should takes precedence over factors such as provides convenience, security, ease of use for successful penetration to market”.
With these cases, this paper analyzes four cases predicted on the following hypothesis and demonstrates it. “To successfully penetrate a market and sustainably grow, new payment service should find non-customer of the existing payment service and provide noble payment method so that they can use payment method”.
We give plausible explanations for the hypothesis using multiple case studies. Diners club, Danal, PayPal, Square were selected as a typical and successful cases in each category of payment service. The discussion on cases is primarily non-customer analysis that noble payment service targets on to find the most crucial factor in the early market, we does not attempt to consider factors for business growth. We clarified three-tier non-customer of the payment method that new payment service targets on and elaborated how new payment service satisfy them.
In case of credit card, this payment service target first tier of non-customer who can’t pay for because they don’t have any cash temporarily but they have regular income. So credit card provides an opportunity which they can do economic activities by delaying the date of payment.
In a result of wireless phone payment’s case study, this service targets on second of non-customer who can’t use online payment because they concern about security or have to take a complex process and learn how to use online payment method. Therefore, wireless phone payment provides very convenient payment method. Especially, it made group of young pay for a little money without a credit card.
Case study result of PayPal, online payment service, shows that it targets on second tier of non-customer who reject to use online payment service because of concern about sensitive information leaks such as passwords and credit card details. Accordingly, PayPal service allows users to pay online without a provision of sensitive information.
Final Square case result, Mobile POS –based payment service, also shows that it targets on second tier of non-customer who can’t individually transact offline because of cash’s shortness. Hence, Square provides dongle which function as POS by putting dongle in earphone terminal.
As a result, four cases made non-customer their customer so that they could penetrate early market and had been extended their market share.
Consequently, all cases supported the hypothesis and it is highly probable according to ‘analytic generation’ that case study methodology suggests.
We present for judging the quality of research designs the following. Construct validity, internal validity, external validity, reliability are common to all social science methods, these have been summarized in numerous textbooks(Yin, 2014). In case study methodology, these also have served as a framework for assessing a large group of case studies (Gibbert, Ruigrok & Wicki, 2008). Construct validity is to identify correct operational measures for the concepts being studied. To satisfy construct validity, we use multiple sources of evidence such as the academic journals, magazine and articles etc.
Internal validity is to seek to establish a causal relationship, whereby certain conditions are believed to lead to other conditions, as distinguished from spurious relationships. To satisfy internal validity, we do explanation building through four cases analysis. External validity is to define the domain to which a study’s findings can be generalized. To satisfy this, replication logic in multiple case studies is used.
Reliability is to demonstrate that the operations of a study –such as the data collection procedures- can be repeated, with the same results. To satisfy this, we use case study protocol.
In Korea, the competition among stakeholders over mobile payment industry is intensifying. Not only main three Telecom Companies but also Smartphone companies and service provider like KakaoTalk announced that they would enter into mobile payment industry. Mobile payment industry is getting competitive. But it doesn’t still have momentum effect notwithstanding positive presumptions that will grow very fast.
Mobile payment services are categorized into various technology based payment service such as IC mobile card and Application payment service of cloud based, NFC, sound wave, BLE(Bluetooth Low Energy), Biometric recognition technology etc. Especially, mobile payment service is discontinuous innovations that users should change their behavior and noble infrastructure should be installed.
These require users to learn how to use it and cause infra- installation cost to shopkeepers. Additionally, payment industry has the strong path dependency. In spite of these obstacles, mobile payment service which should provide dramatically improved value as a products and service of discontinuous innovations is focusing on convenience andsecurity, convenience and so on.
We suggest the following to success mobile payment service. First, non-customers of the existing payment service need to be identified. Second, needs of them should be taken. Then, noble payment service provides non-customer who can’t pay by the previous payment method to payment method.
In conclusion, mobile payment service can create new market

기업용 마이크로블로그의 사용행태에 대한 사례연구

강민수, 박아름, & 이경전. (2015). 기업용 마이크로블로그의 사용행태에 대한 사례연구. 지능정보연구, 21(1), 47-63. (link)

ABSTRACT

지식경영전략은 코드화(Codification) 전략과 대인화(Personalization) 전략으로 대별할 수 있으며(Hansen et al., 1999), 성공적인 지식경영의 도입과 활용을 위한 두 전략의 운영 방안에 대한 연구가 계속되어 왔다. 그리고 지식경영 시스템에 대한 기존 연구는 주로 대기업의 일부 조직에서 활용한 사례를 대상으로 하고 있어, 중소 규모의 기업 전체를 대상으로 하는 연구는 미비한 실정이다. 본 논문은 중소 규모의 기업에 적합한 지식경영 시스템으로 기업용 마이크로블로그를 특정하고, 기업용 마이크로블로그를 활용한 중소기업의 지식경영전략을 코드화 전략과 대인화 전략의 관점에서 검토한다. 지식경영전략과 기업용 마이크로블로그에 대한 선행연구를 통하여 “기업의 성장에 따라 기업용 마이크로블로그의 활용은 코드화 전략에서 대인화 전략 중심으로 변화한다”는 가설을 설정하였다. 이 가설을 확인하기 위하여 창업 초기부터 현재까지 ‘야머’(Yammer)라는 기업용 마이크로블로그를 사용하고 있는 소규모 기업을 대상으로 사례연구를 진행하였다. 사례 연구는 기업용 마이크로블로그의 사용 기간을 창업 ‘초기’, 현재의 조직 형태를 갖추게 된 ‘중기’, 그리고 연구가 진행된 ‘현재’ 등 세 시점으로 나누고 콘텐츠를 분석하는 종단 분석을 실시하였다. 그리고 각 시점별 야머에 등록된 콘텐츠의 커뮤니케이션 유형을 분석하여 사례기업의 기업용 마이크로블로그 사용행태를 분석하고, 지식경영전략의 변화를 확인하는 방법을 사용하였다. 연구의 결과로 소규모 기업에서 지식경영전략의 운영과 그에 적합한 지식경영 시스템의 활용에 대한 실질적인 시사점을 제시하고자 한다.

핀테크의 이해

이경전, 허미리, 황보유정, & 전정호. (2016). 핀테크의 이해. 정보시스템연구, 25(2), 173-189. (link)

Contents

Ⅰ. 핀테크 개념과 현황

Ⅱ. 핀테크 비즈니스 모델 도출 방안

Ⅲ. 핀테크 산업 정책 도출 방안

3.1 Unbanked/Underfinanced의 Banked/Financed로의 전환

3.2 연관 산업을 육성하는 수단으로서의 핀테크

Ⅳ. 맺음말

참고문헌

사물인터넷 기술을 이용한 의료서비스 사례 연구 및 효과에 대한 연구

정남호, 엄태휘, 이경전, & 박아름. (2016). 사물인터넷 기술을 이용한 의료서비스 사례 연구 및 효과에 대한 연구. 서비스경영학회지, 17(3), 251-265. (link)

ABSTRACT

As IoT(Internet of Things) technology evolves, O2O(online to offline) service has been expanded which is using NFC(Near Field Communication) and beacon technology. Such a expansion, however, is largely driven by the major companies and limited to shopping industry. For these reasons, application in various fields is required. Accordingly, introducing O2O service in the medical industry is appeared recently. To keep up this aspect, KHU(Kyung Hee University) hospital is also going to apply O2O service based on smart tag and beacon technology. In this study, firstly, review some O2O service cases which are applied to medical industry in advance. Then we introduce O2O service of KHU hospital. Finally, check out the medical staff’s work-efficiency and patient’s satisfaction who were actually used the service provided by KHU hospital beforehand. Consequently, through out the results of this study, we suggests practical improvement about how the service of KHU hospital can be more competitive.

NEQM (NFC Based Equipment Qualification Management) System Preventing Counterfeit and Fraudulent Item

Chang, C. K., & Lee, K. J. NEQM (NFC Based Equipment Qualification Management) System Preventing Counterfeit and Fraudulent Item. Journal of Energy and Power Engineering, pp.622-631, Volume 9, Number 7, July 2015 (link)

ABSTRACT

Qualification of equipment essential to safety in NPPs (nuclear power plants) ensures its capability to perform designated safety functions on demand under postulated service conditions. However, a number of incidents identified by the NRC (Nuclear Regulatory Commission) since 1980s catalysed the US nuclear industry to adopt standard precautions to guard against counterfeit items. The purpose of this paper is to suggest the NFC (near field communication) based equipment qualification management system preventing counterfeit and fraudulent items. The NEQM (NFC based equipment qualification management) system works with the support of legacy systems such as PMS (procurement management system) and FMS (facility management system).

A near field communication adoption and its impact on Expo visitors’ behavior

Han, H., Park, A., Chung, N., & Lee, K. J. (2016). A near field communication adoption and its impact on Expo visitors’ behavior. International Journal of Information Management, 36(6), 1328-1339. (link)

ABSTRACT
Utilization of advanced smart technologies and online-to-offline/offline-to-online marketing has resulted in the adoption of near field communication (NFC) in many expositions (Expos). The objective of NFC is to enhance and revitalize the Expo experience of visitors. Thus, this study focused on the motivation-opportunity-ability framework and satisfaction transfer of visitors who process information using NFC to understand NFC reuse intention and Expo loyalty. We hypothesized that information quality (motivation), organizational support for using NFC at an Expo (opportunity), and self-efficacy (ability) influence NFC value and NFC satisfaction. NFC value would influence satisfaction with NFC and with the Expo, which then influences NFC reuse intention and Expo loyalty, respectively. A survey of 309 visitors at the Expo showed that information quality and organizational support influenced perceived value and satisfaction of NFC. Self-efficacy influenced the perceived value of but not the satisfaction with NFC. Further, the perceived NFC affected NFC reuse intention and Expo loyalty through satisfaction with NFC and satisfaction with the Expo, respectively. This study thus expands the scope of study on NFC by demonstrating the need for utilization of NFC and by empirically demonstrating the importance of NFC.