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김정현 연구실

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김정현 연구실은 서비스 운영과 생산전략을 중심으로 대기행렬 이론, 동적 스케줄링, 수익관리, 가격결정, 순차적 학습, 대기정보 제공 전략 등을 연구하며, 콜센터·사법시스템·대규모 서비스 시스템과 같은 현실 문제를 데이터 기반의 계량모형으로 분석해 혼잡 완화, 고객경험 개선, 수익성 향상에 기여하는 경영과학 연구를 수행하고 있다.

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대기행렬 기반 서비스 운영 최적화
연구 성과 추이
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.

5개년 연도별 논문 게재 수

3총합

5개년 연도별 피인용 수

6총합
주요 논문
3
논문 전체보기
1
article
|
green
·
인용수 0
·
2025
An Explore-Then-Commit Strategy for Revenue Management via Sequential Estimation
Jeunghyun Kim, Chihoon Lee, Dongyuan Zhan
SSRN Electronic Journal
https://doi.org/10.2139/ssrn.5063645
Commit
Estimation
Revenue
Revenue management
Computer science
Business
Economics
Finance
Database
Management
2
preprint
|
green
·
인용수 0
·
2025
Information Sharing to Optimize the Wait-Time Experience
Jeunghyun Kim, Laurens Debo, Robert A. Shumsky
SSRN Electronic Journal
https://doi.org/10.2139/ssrn.5380738
Computer science
Information sharing
World Wide Web
3
article
|
인용수 6
·
2024
Service Operations for Justice-on-Time: A Data-Driven Queueing Approach
Nitin Bakshi, Jeunghyun Kim, Ramandeep S. Randhawa
IF 4.2 (2024)
Manufacturing & Service Operations Management
Problem definition: Limited resources in the judicial system can lead to costly delays, stunted economic development, and even failure to deliver justice. Using the Supreme Court of India as an exemplar for such resource-constrained settings, we apply ideas from service operations to study delay. Specifically, court dynamics constitute a case-management queue, whereby each case may experience multiple service encounters spread across time, but all are necessarily with the same server. Our goal is to elucidate the drivers of congestion, focusing on metrics such as the expected case-disposition time (delay) and expected number of cases awaiting adjudication (pendency), and leverage this understanding to recommend operational interventions. Methodology/results: We employ data-driven calibrated simulations to model the analytically intractable case-management queue. The life cycle of a case comprises two stages: preadmission (before determining its merit for detailed hearings) and postadmission. Our methodology allows us to capture the queueing dynamics in which the judges are shared resources across the two stages. It also permits modeling of holiday capacity, which is flexibly tailored to address any surplus work that spills over from the regular year. We find that the second stage of this judicial queue is overloaded, but holiday capacity creates a perception of stability by steadying performance metrics. Managerial implications: The sources of inefficiency that drive congestion include a misalignment between scheduling guidelines and judicial capacity, coupled with the requirement to schedule hearings in advance. Together, these factors inhibit utilization of shared capacity across the two-stage judicial queue. We demonstrate how interventions that account for these inefficiencies can successfully tackle judicial delay. In particular, scheduling to improve the allocation of time across preadmission and postadmission cases can cut down the expected delay by as much as 65%. Funding: This study is (partially) supported by a Korea University Business School Research Grant. Supplemental Material: The online appendix is available at https://doi.org/10.1287/msom.2023.0530 .
https://doi.org/10.1287/msom.2023.0530
Queueing theory
Service (business)
Economic Justice
Business
Computer science
Operations research
Operations management
Process management
Computer network
Microeconomics

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