RESEARCH

49.  Lee, Y. & Geum, Y. (2023) Identifying patterns of mergers and acquisitions in startup: An empirical analysis using Crunchbase data, IEEE Access, in press

48.  Kim, J., Kim, H., & Geum, Y. (2023) How to succeed in the market? Predicting startup success using a machine learning approach, Technological Forecasting and Social Change, 193, 122614

47. Han, J., Jeon, B. & Geum, Y. (2022) Link Prediction Revisited: New Approach for Anticipating New Innovation Chances Using Technology Convergence, IEEE Transactions on Engineering Management

46. Park, M. & Geum, Y. (2022) Two-stage technology opportunity discovery for firm-level decision making: GCN-based link-prediction approach, Technological Forecasting and Social Change, 183, 121934 

45. Han, M. & Geum, Y. (2022) Problem-oriented CBR: Finding potential problems from lead user communities, Expert Systems with Applications, 193, 116472  

44. Ha, S., & Geum, Y. (2022). Identifying new innovative services using M&A data: An integrated approach of data-driven morphological analysis. Technological Forecasting and Social Change, 174, 121197.

43. Kim, J. & Geum, Y. (2021) How to develop data-driven technology roadmaps:  The integration of topic modeling and link prediction, Technological Forecasting and Social Change, 171, 120972

42. Park, M. & Geum, Y. (2021) On the data-driven generation of new service idea: Integrated approach of morphological analysis and text mining, Service Business, 15, 539–561

41. Kim, J., Jeon, W. & Geum, Y. (2021) Industry Convergence for Start-Up Businesses: Dynamic Trend Analysis Using Merger and Acquisition Information, IEEE Transactions on Engineering Management

40. Kim, M. & Geum, Y. (2020) Predicting patent transactions using patent-based machine learning techniques, IEEE Access, 8, 188833-188843

39. Kwon, U. & Geum, Y. (2020) Identification of promising inventions considering the quality of knowledge accumulation: A machine learning approach, Scientometrics, 125(3), 1877-1897

38. Geum, Y. & Kim, M. (2020) How to identify promising chances for technological innovation: keygraph-based patent analysis, Advanced Engineering Informatics, 46, 101155 

37. Han, M. & Geum, Y. (2020) Roadmapping for data: concept and typology of data-integrated smart-service roadmaps, IEEE Transactions on Engineering Management

36. Yun, J. & Geum, Y. (2020) Automated classification of patents: a topic modeling approach, Computers & Industrial Engineering, 147(2020) 106636

35. Lee, S., & Geum, Y. (2020) How to determine a minimum viable product in app-based lean start-ups: Kano-based approach. Total Quality Management & Business Excellence, 1-17(in press)

34.  Yun, J. & Geum, Y. (2019) Analyzing the dynamics of technological convergence using a co-classification approach: a case of healthcare services, Technology Analysis and Strategic Management, 31(12), 1412-1429

33. Lee, H., Seo, H. & Geum, Y. (2018). Uncovering the Topic Landscape of Product-Service System Research: from Sustainability to Value Creation. Sustainability, 10(4), 911.

32. Min, H., Yun, J. & Geum, Y. (2018), Analyzing dynamic change in customer requirements: an approach using review-based Kano analysis, Sustainability,10(3), 1-17

31. Kwon, H., Park, Y. & Geum, Y. (2018) Toward data-driven idea generation: Application of Wikipedia to morphological analysis, Technological Forecasting and Social Change, 132, 56-80

30. Corona, M., Geum, Y. & Lee, S. (2017) Patterns of Protecting Both Technological and Nontechnological Innovation for Service Offerings: Case of the Video Game Industry, Service Science, 9(3): 192–204

29. Geum, Y., Kim, M., & Lee, S. (2017) Service Technology: Definition and Characteristics Based on a Patent Database, Service Science, 9(2):147-166

28. Lee, H., Geum, Y. (2017) Development of the scenario-based technology roadmap considering layer heterogeneity: an approach using CIA and AHP, Technological Forecasting and Social Change, 117, 12–24  

27. Lee, H., Seol, H., Min, H. & Geum, Y. (2017) The identification of new service opportunities: A case-based morphological analysis, Service Business, 11(1), 191–206. 

26. Kim, J, Geum, Y. & Park, Y. (2017) Integrating customers’ disparate technology readiness into technological requirement analysis: an extended Kano approach, Total Quality Management & Business Excellence, 28(6), 678-694

25. Geum, Y., Park, Y. (2016) How to generate creative ideas for innovation: a hybrid approach of WordNet and morphological analysis, Technological Forecasting and Social Change, 111, 176–187

24. Geum, Y., Jeon, H. & Lee, H. (2016) Developing new smart services using integrated morphological analysis: Integration of the market-pull and technology-push approach, Service Business, 10(3), 531-555

23. Geum, Y., Noh, E. & Park, Y. (2016) Generating new service ideas: the use of hybrid innovation tools to reflect functional heterogeneity of services, R&D Management, 46(4), 736–748

22. Geum, Y., Kim, M. & Lee, S. (2016) How industrial convergence happens: a taxonomical approach based on empirical evidence, Technological Forecasting and Social Change, 107, 112–120

21. Park, H., Geum, Y. &Park, Y. (2015) A Dual Quality Function Deployment Approach for Benchmarking Service Quality, Total Quality Management & Business Excellence, 26(5/6), 569-582

20. Lee, S, Geum, Y., Lee, S. & Park, Y. (2015) Evaluating new concepts of PSS based on the customer value: application of ANP and niche theory, Expert Systems with Applications, 42(9), 4556–4566 (SCIE) 2015. 6 

19. Geum, Y., Lee, H., Lee, Y., and Park, Y. (2015) Development of data-driven technology roadmap considering dependency: an ARM-based technology roadmapping, Technological Forecasting and Social Change, 91, 264–279 (SSCI), 2015. 2 

18. Lee, I., Geum, Y., Hong, S. P., Lee, S. &Choe, E. J. (2014) Optimization of the future soldier system: an integrative approach based on agent-based simulation and response surface method, Military Operations Research, 19(4), 25-39 (SCIE), 2014. 12

17. Geum, Y., Lee, S. & Park, Y. (2014) Combining technology roadmap and system dynamics simulation to support scenario-planning: a case of car-sharing service, Computers & Industrial Engineering, 71, 37–49 (SCIE), 2014. 5

16. Geum, Y., Kim, J., Son, C. & Park, Y. (2013) Development of dual technology roadmap (TRM) for open innovation: structure and typology, Journal of Engineering and Technology Management, 30(3), 309–325. (SSCI) 2013.7 

15. Geum, Y., Lee, S., Yoon, B. & Park, Y. (2013) Identifying and Evaluating Strategic Partners for Collaborative R&D: Index-Based Approach Using Patents and Publications, Technovation, 33(6/7), 211-224. (SSCI) 2013. 6

14. Geum, Y., Park, Y. (2013), The state of the art of public-sector technology roadmaps: A taxonomical approach to energy technology roadmaps, Science and Public Policy, 40(3), 327 - 339. (SSCI) 2013.6

13. Son, C., Geum, Y. & Park, Y. (2013) How to identify the trends of services: GTM-TT service map, Expert Systems with Applications, 40(8), 2956-2965. (SCIE) 2013.6

12. Geum, Y., Jeon, J. & Seol, H. (2013) Identifying technological opportunities using the novelty detection technique: a case of laser technology in semiconductor manufacturing, Technology Analysis & Strategic Management, 25(1), 1-22. (SSCI) 2013.01

11. Kim, J., Lee, S., Geum, Y. & Park, Y. (2012), Patterns of Innovation in Digital Content Services: The Case of App Store Applications, Innovation: Management, Policy & Practice, 14(4), 540–556. (SSCI) 2012.12

10. Park, Y., Geum, Y. & Lee, H. (2012) Toward integration of products and services: Taxonomy and typology, Journal of Engineering and Technology Management, 29(4), 528–545. (SSCI) 2012.10

9. Lee, S., Geum, Y., Lee, H. & Park, Y. (2012), Dynamic and multidimensional measurement of product-service system (PSS) sustainability: A triple bottom line (TBL)-based system dynamics approach, Journal of Cleaner Production, 32, 173–182. (SCIE) 2012.9

8. Geum, Y., Lee, S., Kim, C. & Kim, M. (2012), Technological Convergence of IT and BT: Evidence from Patent Analysis, ETRI Journal, 34(3), 439–449. (SCI) 2012.6

7. Geum, Y., Kwak, R. & Park, Y. (2012), Modularizing services: a modified HoQ approach, Computers & Industrial Engineering, 62(2), 579-590. (SCIE) 2012.3

6. Geum, Y., Cho, Y. & Park, Y. (2011), A systematic approach for diagnosing service failure: Service-specific FMEA and grey relational analysis approach, Mathematical and Computer Modelling, 54(11/12), 3126-3142. (SCIE) 2011.12

5. Geum, Y., Lee, S., Kang, D. & Park, Y. (2011), The customisation framework for roadmapping product-service integration, Service Business, 5(3), 213-236. (SSCI) 2011. 9

4. Geum, Y. & Park, Y. (2011), Designing the sustainable product-service integration: a product-service blueprint approach, Journal of Cleaner Production, 19(14), 1601-1614. (SCIE) 2011. 9

3. Geum, Y., Shin, J. & Park, Y. (2011), FMEA-based portfolio approach to service productivity improvement, Service Industries Journal, 31(11), 1825-1847. (SSCI) – 2011. 8

2. Geum, Y., Lee, S., Kang, D. & Park, Y. (2011), Technology roadmapping for technology-based product-service integration: A case study, Journal of Engineering and Technology Management, 28(3), 128-146. (SSCI) – 2011. 7

1. Geum, Y., Seol, H., Lee, S. & Park, Y. (2009), Application of fault tree analysis to the service process: service tree analysis approach, Journal of Service Management, 20(4), 433-454. (SSCI) 2009.08

19. Kim, S., Geum, Y. (2023) Covid-19에 따른 글로벌 창업 트렌드 분석: Crunchbase를 중심으로, 벤처창업연구, 18(3), 141-156

18. Kim, J., Kim, H., Park, M., Geum, Y. (2021) 토픽 기반 RFM과 감성 분석을 통한 여행지 만족도 분석, 한국경영공학회지, 26(2), 115-134

17. Lee, B., Jeon, W., Geum, Y. (2021) 문화기술 연구 동향 분석: 국가연구과제를 중심으로, 한국콘텐츠학회지, accepted for publication

16. Jeon, W., Lee, Y., Geum, Y. (2021) 머신러닝과 감성분석을 활용한 고객 리뷰 기반 항공 서비스 품질 평가, 한국전자거래학회지, accepted for publication

15. Han, J., Geum, Y. (2021) 특허 기반 블록체인 기술 동향 분석: 기술 재정의 프로세스를 바탕으로, 한국경영공학회지, 26(1), 49-76

14. Park, M., Jeon, B., Kim, J.,  Geum, Y. (2021) 용어 확장을 통한 핀테크 기술 적용가능 산업의 탐색: 네트워크 분석 및 토픽 모델링 접근, 한국전자거래학회지, 26(1), 1-28

13. Ha, S., Geum, Y. (2020) 특허기반 LOF를 활용한 기술혁신의 Weak Signal 탐색: 자율주행차 중심으로, 한국경영공학회지,  25(2), 17-33

12. Ha, S., Geum, Y. (2020)  네트워크 분석을 이용한 애플리케이션 서비스 하위 카테고리 분류: 헬스케어 어플리케이션 중심으로, 한국전자거래학회지, 25(3), 15-40

11. Kim, J., Geum, Y. (2019)  네트워크 분석 및 특허지표를 활용한 유망 제조-서비스 융합 기술 탐색 : 자율주행차를 중심으로, 한국경영공학회지, 24(4), 15-37

10. Kim, M., Kwon, U., Geum, Y. (2018) 군집분석을 통한 응급취약지역의 유형화와 유형별 대응방안 제안: 경기도 119 구급사건 데이터를 기반으로, 한국경영공학회지, 23(2), 33-54

9. Kwon, U., Geum, Y. (2018) 국가연구과제 동시분류분석을 통한 6T 기술 융합 분석, 한국경영공학회지, 23(2), 33-54  (2018년 한국경영공학회 우수논문상)

8. Moon, J. Kwon, U., Geum, Y. (2017) 특허 동시분류분석과 텍스트마이닝을 활용한 사물인터넷 기술융합 분석, 기술혁신연구, 25(3), 1-24 

7. Geum, Y. (2017) 기술로드맵의 연구 동향 : 기술과 시장을 어떻게 연계할 것인가?, IE 매거진 24(2), 37-43

6. Park, S., Geum, Y. (2016+) AHP와 BMC를 활용한 중소기업의 핵심 지식서비스 평가 및 비즈니스 모델 제안, 기술혁신연구, 24(3), Accepted for publication (2016.8)

5. Ryu, K., Kim, J., Geum, Y., Kang, P., and Kim, W. (2016) 연관 규칙 분석을 활용한 ARS 추천 메뉴 시스템 연구, 한국정보기술학회논문지 14(3), 127-136 (2016.3)

6. Jeon, J., Geum, Y. (2016) 개방형 혁신의 협력대상자 탐색을 위한 BSC-AHP 프레임워크 제안, 기술혁신연구, 24(1), 25-48 (2016.2)

3. Geum, Y., Min, H. (2016) 스마트폰 애플리케이션 서비스의 기술-서비스 융합 양상 분석, 대한산업공학회지, 42(1), 1-19 (2016.2)

2. Jeon, J., Geum, Y. (2015) 불확실한 환경에서의 효과적 기획을 위한 시나리오 기반 기술로드맵 프로세스의 개발, 기술혁신학회지, 18(3), pp. 492-515

1. Kang, P., Geum, Y., Park, H., Kim, S., Sung, T., and Lee, H. (2015), 기술가치평가를 위한 시장대체원가 접근법, 대한산업공학회지, 41(2), 150-161. 2015. 4 

18. Kwon, H., Park, Y., and Geum, Y. (2016) How to generate ideas for emerging technologies using future-oriented data: a Wordnet-based morphology analysis, Proceedings of the ISPIM Innovation Forum, Boston, USA. 

17. Kim, J., Geum, Y., and Park, Y. (2016) Exploring connections between novel ideas and existing products: an integrative approach of novelty detection and SAO-based network analysis, Proceedings of the ISPIM Innovation Forum, Boston, USA. 

16. Geum, Y., An, Y., and Park, Y. (2013), Generating creative ideas for innovation: a WordNet-based morphology approach, Proceedings of the XXIV ISPIM Conference – Innovating in Global Markets: Challenges for Sustainable Growth, Helsinki, Finland

15. Geum, Y., Kim, M., Park, Y., and Lee, S. (2013) The convergence of manufacturing and service technologies: A patent analysis approach, Proceedings of International Conference on Computing Engineering and Enterprise Management (ICCEEM), Bangkok, Thailand

14. Geum, Y., Lee, H., and Park, Y. (2012) How to Use the Big Data to the Technology Planning: A Data-Driven Technology Roadmapping Using ARM, Proceedings of the IEEE International Conference on Industrial Engineering and Engineering Management (IEEM), HongKong, China 

13. Geum, Y., Park, Y. and Noh, E. (2012) Hybrid Approach of Case-Based Reasoning and Convergence-Divergence Approach to Develop New Services, Proceedings of the International Association for Management of Technology (IAMOT), Hsinchu, Taiwan

12. Park, Y., Geum, Y., and Kim, J. (2012) How to Plan the Open Innovation: A Hybrid Approach of Technology Roadmapping and Portfolio Management, Proceedings of the International Association for Management of Technology (IAMOT), Hsinchu, Taiwan

11. Lee, S., Geum, Y., Kim, M., and Kim, J. (2011) How technologies can facilitate service innovation?, Proceedings of the 4th ISPIM Innovation Symposium - Managing Innovation for Sustained Productivity: Creating Advantage and Resilience, Wellington, New Zealand

10. Geum, Y., Kim, M., and Yoon, J. (2011) Developing the metrics for R&D quality assurance, Proceedings of the R&D management conference, Norrköping, Sweden

9. Geum, Y., Kim, M., and Yoon, J. (2011) Development of a Quality Assurance Framework for Research and Development, Proceedings of the 2nd International Conference on Mechanical, Industrial, and Manufacturing Technologies (MIMT 2011), Singapore, Singapore

8. Geum, Y., Kim, S., Park, Y. (2011) Development of new mobile application services: An approach using context-driven morphology analysis, Proceedings of the 8th International Conference on Service System and Service Management (ICSSSM 11), Tianjin, China

7. Geum, Y. and Park, Y. (2010) Development of Technology Roadmap for Product-Service System (TRPSS), Proceedings of the IEEE International Conference on Industrial Engineering and Engineering Management (IEEM), Macao, China

6. Lee, S., Geum, Y., Yoon, B., and Kim, M., and Shin, J. (2010), Strategic Partner Selection for Collaborative R&D: Literature-based Technology Intelligence, Proceedings of the R&D Management Conference, Manchester

5. Kim, J., Geum, Y., and Park, Y. (2010), Typology of Convergence for Digital Contents Service: the Case of App Store, Proceedings of the 7th International Conference on Service Systems and Service Management (ICSSSM), Tokyo, Japan 

4. Geum, Y., Kang, D., and Park, Y. (2010) Technology interfaces in product-service integration: concept and typology, Proceedings of the International conference on Portland International Center for Management of Engineering and Technology (PICMET), Phuket, Thailand

3. Geum, Y., Kwak, R., and Park, Y. (2008) Service modularization: QFD-based approach, Proceedings of the International Society for Professional Innovation Management (ISPIM '08), Singapore, Singapore

2. Geum, Y., Suh, Y., and Park, Y., and Oh, H. (2008) Generating New Service Concepts Based on Ontology Integration, Proceedings of the International Conference on Management of Innovation and Technology (ICMIT), Bangkok, Thailand

1. Geum, Y., Lee, S., Seol, H., and Park, Y. (2007) Application of fault tree analysis to the service process : Service tree analysis approach, Proceedings of the International Conference of Global Academy of Business and Economic Research (GABER), Bangkok, Thailand

33. 김신호, 금영정 (2023) 다중 역할 경험을 고려한 게임 유저 이탈 예측: 롤 게임을 중심으로, 대한산업공학회 추계학술대회, 울산과학기술원(UNIST)

32. 박가문날비, 김신호, 금영정 (2023) Developing data-driven QFD: A systematic approach to employing text information using product manuals, 대한산업공학회 추계학술대회, 울산과학기술원(UNIST)

31. 김진홍, 박가문날비, 우명균, 금영정 (2023) 분석 방법론 변화 동향에 의한 데이터 기반 기술로드맵 트렌드 연구, 대한산업공학회 추계학술대회, 울산과학기술원(UNIST)

30. 박민규, 금영정 (2020)  머신러닝 기반 특허 CPC 링크 예측을 활용한 기업 수준의 기술 기회 발굴,  대한산업공학회 추계학술대회, 서울과학기술대학교

29. 전우진, 이예빈, 금영정 (2020)  머신러닝과 감성분석을 활용한 고객 리뷰 기반 항공 서비스 품질 평가,  대한산업공학회 추계학술대회, 서울과학기술대학교

28. 하소희, 금영정 (2020)  신서비스 발굴을 위한 데이터 기반 통합 QFD-MA 접근: 인수합병 데이터를 중심으로,  대한산업공학회 추계학술대회, 서울과학기술대학교

27. 한재웅, 전병민, 금영정 (2020)  신서비스 발굴을 위한 새로운 링크 예측 프레임워크 제안: 서비스-기술 융합을 바탕으로,  대한산업공학회 추계학술대회, 서울과학기술대학교

26. 김종우, 김홍일, 박민규, 금영정 (2020)  토픽 기반 RFM과 감성분석을 통한 여행지 만족도 분석,  대한산업공학회 추계학술대회, 서울과학기술대학교

25. 김준한, 금영정 (2019)  데이터 기반 기술로드맵 구축: 토픽모델링 및 링크 예측 접근,  대한산업공학회 추계학술대회, 서울대학교

24.김준한, 금영정 (2019) 제조-서비스 융합을 위한 특허기반 유망기술 탐색 및 발굴: 자율주행차를 중심으로, 대한산업공학회 춘계학술대회, 광주

23.김미래, 금영정 (2018) 머신러닝 기법을 활용한 특허 권리이전 정보의 예측. 대한산업공학회 추계학술대회 ,한양대학교

22. 권의준, 금영정 (2017) 동시분류분석 및 네트워크 분석을 통한 국가적 관점의 기술-산업 융합 분석, 대한산업공학회 춘계학술대회, 여수

21. Tohir Yuldoshev, Junghwan Yun, Youngjung Geum (2017) Comparing Technological Trend Between Russia and South Korea, 대한산업공학회 춘계학술대회, 여수

20. 윤정환, 금영정 (2016) 특허 정보 동시분류분석을 통한 기술융합의 동태적 분석방법에 관한 연구, 대한산업공학회 추계학술대회, 고려대학교 (제 5회 산업융합활성화 방안 및 사례연구 논문공모전 최우수상) 

19. 문진희, 금영정 (2016) 데이터 마이닝을 활용한 영화 VOD 흥행 예측 및 주요 흥행 요인 분석, 대한산업공학회 추계학술대회, 고려대학교

18. 문진희, 금영정 (2016) 특허 네트워크 분석을 활용한 사물인터넷 기술융합 분석: 동시분류분석을 중심으로, 대한산업공학회 춘계학술대회, 제주

17. 민혜종, 금영정 (2015) 토픽모델링을 이용한 매체별 빅데이터 동향 다각적 분석, 대한산업공학회 추계학술대회, 연세대학교, 서울

16. 김종명, 금영정 (2015) DEA를 활용한 콜 센터 상담원에 대한 서비스 효율성 분석, 대한산업공학회 추계학술대회, 연세대학교, 서울

15. 신우섭, 금영정 (2015) 교육 프로그램 개선을 위한 갭(gap) 분석 프레임워크 제안 - 한국표준협회 사례를 중심으로, 대한산업공학회 추계학술대회, 연세대학교, 서울 

14. 민혜종, 금영정 (2015) Kano 모형의 동태적 변화 분석을 위한 프레임워크 제안: 고객 리뷰 기반 접근, 기술경영경제학회 동계학술대회, 부경대학교, 부산

13. 서성훈, 민혜종, 이학연, 금영정 (2015) Text mining 과 LSA를 활용한 모바일 어플리케이션 카테고리 정립, 기술경영경제학회 동계학술대회, 부경대학교, 부산

12. 장우석, 금영정, 박용태 (2013) 고객 후기에 바탕한 서비스 평점의 추정: 감성 분석 및 혼합로짓모형 접근, 기술경영경제학회 하계학술대회, 제주

11. 김지영, 금영정, 박용태 (2013) 이질적 고객집단 성향을 반영한 기술요구사항 분석: Kano 모형의 확장, 기술경영경제학회 동계학술대회, 부산

10. 노은지, 금영정, 박용태 (2013) Analysis of Social Apps diffusion on network platforms: an Agent-based model approach, 기술경영경제학회 동계학술대회, 부산

9. 박효진, 금영정, 박용태 (2012) Benchmarking service quality: dual QFD approach, 기술경영경제학회 동계학술대회, 천안 

8. 박효진, 금영정, 박용태 (2011) 소셜커머스의 기술적 요소가 성과에 미치는 영향 분석: Daily Deal 서비스를 중심으로, 기술경영경제학회 하계학술대회, 제주

7. 이유진, 김지은, 금영정, 박용태 (2011) 제품-서비스 혁신의 발전 양상 분석: IR52 장영실상을 중심으로, 기술경영경제학회 동계학술대회 

6. 금영정, 이소라, 이성주, 박용태 (2011), 시나리오 기반 동태적 기술기획 방법론: 시스템 다이내믹스 기반 기술로드맵 접근, 기술경영경제학회 동계학술대회, 용평, 그린피아

5. 금영정, 전정환, 설현주 (2010), On the monitoring of the technological opportunities using patent information: A novelty detection approach, 대한산업공학회 하계학술대회, 제주 

4. 김지은, 금영정, 박용태 (2010), 디지털 콘텐츠 서비스의 파생적 기술혁신 유형 분류: 원 소스 멀티 유즈(OSMU)를 중심으로, 기술경영경제학회 동계학술대회, 제주 그랜드호텔, 제주

3. 설현주, 박광만, 윤병운, 이학연, 이소라, 금영정 (2009), Demand Forecasting of New Media Services Using Competitive Bass Model and the Theory of the Niche, 대한산업공학회 추계학술대회, 경희대학교, 서울

2. 금영정, 조양래, 박용태 (2009), 서비스 실패 분석: 서비스 FMEA와 그레이 이론을 활용한 체계적 접근 방법 , 대한산업공학회 추계학술대회, 경희대학교, 서울

1. 송보미, 금영정, 박용태 (2009), 서비스 청사진과 베이지안 네트워크를 활용한 서비스 실패 분석, 대한산업공학회 춘계학술대회, 부산대학교, 부산