C. T. Ng

According to our database, C. T. Ng authored at least 125 papers between 1999 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2024

Operations strategy for a construction supply chain: modular integrated construction and blockchain adoption.

Chenyi Chen, Ciwei Dong, Chi To Ng, Xiutian Shi

Int. Trans. Oper. Res., November, 2024

Properly colored cycles in edge-colored 2-colored-triangle-free complete graphs.

Shanshan Guo, Fei Huang, Jinjiang Yuan, C. T. Ng, T. C. E. Cheng

Discret. Appl. Math., March, 2024

Operational research in health care: Overview and future research agenda.

T. C. E. Cheng, Shu Guo, Chi To Ng

Comput. Ind. Eng., January, 2024

Knowledge Management: High-Quality Production Decisions in Partial Volume Flexibility to Create Value for Customers.

Liu Yang, Chi To Ng, Vikas Kumar, Xuefeng Shao, Yi Li

IEEE Trans. Engineering Management, 2024

Competition under demand uncertainty: The roles of technology and capacity strategy.

Liu Yang, Chi To Ng, T. C. E. Cheng, Mingyao Sun, Xuefeng Shao, Ruiqing Li

Eur. J. Oper. Res., 2024

2023

Approximation algorithms for batch scheduling with processing set restrictions.

Xing Chai, Wenhua Li, C. T. Ng, T. C. E. Cheng

J. Sched., December, 2023

Information sharing and coordination in a vaccine supply chain.

Yuqing Pan, C. T. Ng, Ciwei Dong, T. C. E. Cheng

Ann. Oper. Res., October, 2023

Blockchain-enabled traceability and producer's incentive to outsource delivery.

Liu Yang, Yaodong Ni, Chi To Ng

Int. J. Prod. Res., 2023

2022

A Study on Operational Risk and Credit Portfolio Risk Estimation Using Data Analytics.

Rongda Chen, Ze Wang, Liu Yang, Chi To Ng, T. C. E. Cheng

Decis. Sci., 2022

On cycle-nice claw-free graphs.

Shanshan Zhang, Xiumei Wang, Jinjiang Yuan, C. T. Ng, T. C. E. Cheng

Discret. Math., 2022

Remanufacturing with random yield in the presence of the take-back regulation.

Jie Xu, Chunlin Luo, C. T. Ng, Xuehao Feng, T. C. E. Cheng

Comput. Ind. Eng., 2022

Preface.

Bin Shen, Ciwei Dong, Chi To Ng

Asia Pac. J. Oper. Res., 2022

Pareto-scheduling with family jobs or ND-agent on a parallel-batch machine to minimize the makespan and maximum cost.

Yuan Gao, Jinjiang Yuan, C. T. Ng, T. C. E. Cheng

4OR, 2022

2021

A note on competing-agent Pareto-scheduling.

Yuan Gao, Jinjiang Yuan, C. T. Ng, T. C. E. Cheng

Optim. Lett., 2021

Two-agent preemptive Pareto-scheduling to minimize the number of tardy jobs and total late work.

Ruyan He, Jinjiang Yuan, C. T. Ng, T. C. E. Cheng

J. Comb. Optim., 2021

Single-machine hierarchical scheduling with release dates and preemption to minimize the total completion time and a regular criterion.

Rubing Chen, Jinjiang Yuan, C. T. Ng, T. C. E. Cheng

Eur. J. Oper. Res., 2021

Effects of imperfect IoT-enabled diagnostics on maintenance services: A system design perspective.

Mingyao Sun, Feng Wu, Chi To Ng, T. C. E. Cheng

Comput. Ind. Eng., 2021

Effect of free-riding behavior on vaccination coverage with customer regret.

Yuqing Pan, Chi To Ng, T. C. E. Cheng

Comput. Ind. Eng., 2021

Bicriteria scheduling to minimize total late work and maximum tardiness with preemption.

Rubing Chen, Jinjiang Yuan, C. T. Ng, T. C. E. Cheng

Comput. Ind. Eng., 2021

Optimal bi-criterion planning of rescue and evacuation operations for marine accidents using an iterative scheduling algorithm.

Chi To Ng, T. C. E. Cheng, Eugene Levner, Boris Kriheli

Ann. Oper. Res., 2021

Scheduling an autonomous robot searching for hidden targets.

T. C. E. Cheng, Boris Kriheli, Eugene Levner, C. T. Ng

Ann. Oper. Res., 2021

2020

Scheduling with release dates and preemption to minimize multiple max-form objective functions.

Jinjiang Yuan, Chi To Ng, T. C. E. Cheng

Eur. J. Oper. Res., 2020

Quantity Leadership for a Dual-Channel Supply Chain with Retail Service.

Ciwei Dong, Liu Yang, Chi To Ng

Asia Pac. J. Oper. Res., 2020

New retail versus traditional retail in e-commerce: channel establishment, price competition, and consumer recognition.

Xuan Wang, Chi To Ng

Ann. Oper. Res., 2020

Single Bounded Parallel-Batch Machine Scheduling with an Unavailability Constraint and Job Delivery.

Jing Fan, C. T. Ng, T. C. E. Cheng, Hui Shi

Proceedings of the Algorithmic Aspects in Information and Management, 2020

2019

A further study on two-agent parallel-batch scheduling with release dates and deteriorating jobs to minimize the makespan.

Yuan Gao, Jinjiang Yuan, Chi To Ng, T. C. E. Cheng

Eur. J. Oper. Res., 2019

2018

A multi-criterion approach to optimal vaccination planning: Method and solution.

C. T. Ng, T. C. E. Cheng, Dmitry Tsadikovich, Eugene Levner, Amir Elalouf, Sharon Hovav

Comput. Ind. Eng., 2018

2017

Fast approximation algorithms for uniform machine scheduling with processing set restrictions.

Joseph Y.-T. Leung, C. T. Ng

Eur. J. Oper. Res., 2017

A Fast Algorithm for Detecting Hidden Objects by Smart Mobile Robots.

T. C. E. Cheng, C. T. Ng, Eugene Levner, Boris Kriheli

Proceedings of the 2017 IEEE International Conference on Smart Computing, 2017

2016

An alternative approach for proving the NP-hardness of optimization problems.

T. C. E. Cheng, Yakov M. Shafransky, C. T. Ng

Eur. J. Oper. Res., 2016

Sustainability investment under cap-and-trade regulation.

Ciwei Dong, Bin Shen, Pui-Sze Chow, Liu Yang, Chi To Ng

Ann. Oper. Res., 2016

2015

Single-machine batch scheduling with job processing time compatibility.

Shisheng Li, T. C. Edwin Cheng, C. T. Ng, Jinjiang Yuan

Theor. Comput. Sci., 2015

Two-agent single-machine scheduling with release dates and preemption to minimize the maximum lateness.

Jinjiang Yuan, C. T. Ng, T. C. Edwin Cheng

J. Sched., 2015

How small are shifts required in optimal preemptive schedules?

Edward G. Coffman Jr., C. T. Ng, Vadim G. Timkovsky

J. Sched., 2015

2014

Scheduling jobs with release dates on parallel batch processing machines to minimize the makespan.

L. L. Liu, C. T. Ng, T. C. E. Cheng

Optim. Lett., 2014

Multi-period empty container repositioning with stochastic demand and lost sales.

B. Zhang, C. T. Ng, T. C. E. Cheng

J. Oper. Res. Soc., 2014

A graph-theoretic approach to interval scheduling on dedicated unrelated parallel machines.

Chi To Ng, Tai Chiu Edwin Cheng, Andrei M. Bandalouski, Mikhail Y. Kovalyov, Sze Sing Lam

J. Oper. Res. Soc., 2014

Flexible capacity strategy with multiple market periods under demand uncertainty and investment constraint.

Liu Yang, Chi To Ng

Eur. J. Oper. Res., 2014

2013

A note on reverse scheduling with maximum lateness objective.

S. S. Li, Peter Brucker, Chi To Ng, T. C. Edwin Cheng, Natalia V. Shakhlevich, Jinjiang Yuan

J. Sched., 2013

An optimal online algorithm for single parallel-batch machine scheduling with incompatible job families to minimize makespan.

Ruyan Fu, T. C. E. Cheng, C. T. Ng, Jinjiang Yuan

Oper. Res. Lett., 2013

2012

Optimal Policy for Inventory Transfer Between Two Depots With Backlogging.

Chi To Ng, Dong-Ping Song, T. C. E. Cheng

IEEE Trans. Autom. Control., 2012

On-line integrated production and outbound distribution scheduling to minimize the maximum delivery completion time.

C. T. Ng, Lingfa Lu

J. Sched., 2012

The unbounded parallel-batch scheduling with rejection.

L. Q. Zhang, Lingfa Lu, C. T. Ng

J. Oper. Res. Soc., 2012

A theorem on cycle-wheel Ramsey number.

Yaojun Chen, T. C. Edwin Cheng, C. T. Ng, Yunqing Zhang

Discret. Math., 2012

An improved on-line algorithm for single parallel-batch machine scheduling with delivery times.

Ji Tian, T. C. E. Cheng, C. T. Ng, Jinjiang Yuan

Discret. Appl. Math., 2012

Preemptive repayment policy for multiple loans.

C. T. Ng, Q. Ding, T. C. E. Cheng, Sze Sing Lam

Ann. Oper. Res., 2012

2011

Online scheduling on unbounded parallel-batch machines with incompatible job families.

Ji Tian, T. C. Edwin Cheng, C. T. Ng, Jinjiang Yuan

Theor. Comput. Sci., 2011

A best online algorithm for unbounded parallel-batch scheduling with restarts to minimize makespan.

Jinjiang Yuan, Ruyan Fu, C. T. Ng, T. C. Edwin Cheng

J. Sched., 2011

Multi-facility ordered median problems in directed networks.

Huajun Tang, T. C. Edwin Cheng, C. T. Daniel Ng

J. Syst. Sci. Complex., 2011

Optimal production strategy under demand fluctuations: Technology versus capacity.

L. Yang, C. T. Ng, T. C. Edwin Cheng

Eur. J. Oper. Res., 2011

Two-agent scheduling to minimize the total cost.

Q. Q. Nong, T. C. E. Cheng, C. T. Ng

Eur. J. Oper. Res., 2011

Parallel-batch scheduling of deteriorating jobs with release dates to minimize the makespan.

Shisheng Li, C. T. Ng, T. C. Edwin Cheng, Jinjiang Yuan

Eur. J. Oper. Res., 2011

Best semi-online algorithms for unbounded parallel batch scheduling.

Jinjiang Yuan, C. T. Ng, T. C. Edwin Cheng

Discret. Appl. Math., 2011

A closed-form solution for the optimal release times for the F2 deteriorating jobs ∑w_jC_j problem.

Edouard Wagneur, T. C. Edwin Cheng, C. T. Daniel Ng

Discret. Appl. Math., 2011

Flowshop scheduling of deteriorating jobs on dominating machines.

C. T. Ng, Ji-Bo Wang, T. C. Edwin Cheng, Sze Sing Lam

Comput. Ind. Eng., 2011

2010

A polynomial-time algorithm for the weighted link ring loading problem with integer demand splitting.

Q. Q. Nong, T. C. Edwin Cheng, C. T. Ng

Theor. Comput. Sci., 2010

Preemptive scheduling with simple linear deterioration on a single machine.

C. T. Ng, Shisheng Li, T. C. Edwin Cheng, Jinjiang Yuan

Theor. Comput. Sci., 2010

On the complexity of bi-criteria scheduling on a single batch processing machine.

L. L. Liu, C. T. Ng, T. C. Edwin Cheng

J. Sched., 2010

The loader problem: formulation, complexity and algorithms.

G. Tang, F. Chen, T. C. Edwin Cheng, C. T. Daniel Ng, Zhi-Long Chen

J. Oper. Res. Soc., 2010

Online scheduling on two parallel-batching machines with limited restarts to minimize the makespan.

Ruyan Fu, T. C. Edwin Cheng, C. T. Ng, Jinjiang Yuan

Inf. Process. Lett., 2010

Evaluating the effects of distribution centres on the performance of vendor-managed inventory systems.

L. Yang, C. T. Ng, T. C. Edwin Cheng

Eur. J. Oper. Res., 2010

Pricing problem in wireless telecommunication product and service bundling.

Bibo Yang, C. T. Ng

Eur. J. Oper. Res., 2010

A simple FPTAS for a single-item capacitated economic lot-sizing problem with a monotone cost structure.

C. T. Ng, Mikhail Y. Kovalyov, T. C. E. Cheng

Eur. J. Oper. Res., 2010

"Product Partition" and related problems of scheduling and systems reliability: Computational complexity and approximation.

C. T. Ng, M. S. Barketau, T. C. Edwin Cheng, Mikhail Y. Kovalyov

Eur. J. Oper. Res., 2010

A branch-and-bound algorithm for solving a two-machine flow shop problem with deteriorating jobs.

C. T. Ng, Ji-Bo Wang, T. C. Edwin Cheng, L. L. Liu

Comput. Oper. Res., 2010

On scheduling unbounded batch processing machine(s).

L. L. Liu, C. T. Ng, T. C. Edwin Cheng

Comput. Ind. Eng., 2010

2009

Two semi-online scheduling problems on two uniform machines.

C. T. Ng, Zhiyi Tan, Yong He, T. C. Edwin Cheng

Theor. Comput. Sci., 2009

Preemptive scheduling of jobs with agreeable due dates on a single machine to minimize total tardiness.

Zhongjun Tian, C. T. Ng, T. C. Edwin Cheng

Oper. Res. Lett., 2009

Online scheduling on unbounded parallel-batch machines to minimize the makespan.

Ji Tian, T. C. Edwin Cheng, C. T. Ng, Jinjiang Yuan

Inf. Process. Lett., 2009

Codiameters of 3-domination critical graphs with toughness more than one.

T. C. Edwin Cheng, Yaojun Chen, C. T. Ng

Discret. Math., 2009

The EOQ problem with decidable warehouse capacity: Analysis, solution approaches and applications.

C. T. Ng, T. C. Edwin Cheng, Vladimir Kotov, Mikhail Y. Kovalyov

Discret. Appl. Math., 2009

Scheduling jobs with release dates on parallel batch processing machines.

L. L. Liu, C. T. Ng, T. C. Edwin Cheng

Discret. Appl. Math., 2009

Bicriterion scheduling with equal processing times on a batch processing machine.

L. L. Liu, C. T. Ng, T. C. Edwin Cheng

Comput. Oper. Res., 2009

Finite dominating sets for the multi-facility ordered median problem in networks and algorithmic applications.

Huajun Tang, T. C. E. Cheng, C. T. Ng

Comput. Ind. Eng., 2009

The Ramsey numbers for cycles versus wheels of odd order.

Yaojun Chen, T. C. Edwin Cheng, Zhengke Miao, C. T. Ng

Appl. Math. Lett., 2009

Two-Machine Flow-Shop Minimum-Length Scheduling with Interval Processing Times.

C. T. Ng, Natalja M. Matsveichuk, Yuri N. Sotskov, T. C. Edwin Cheng

Asia Pac. J. Oper. Res., 2009

2008

Batch scheduling of step deteriorating jobs.

M. S. Barketau, T. C. Edwin Cheng, C. T. Ng, Vladimir Kotov, Mikhail Y. Kovalyov

J. Sched., 2008

The bounded single-machine parallel-batching scheduling problem with family jobs and release dates to minimize makespan.

Q. Q. Nong, C. T. Ng, T. C. Edwin Cheng

Oper. Res. Lett., 2008

An improved on-line algorithm for scheduling on two unrestrictive parallel batch processing machines.

Q. Q. Nong, T. C. Edwin Cheng, C. T. Ng

Oper. Res. Lett., 2008

Exact <i>L</i> ₂-norm plane separation.

Charles Audet, Pierre Hansen, Alejandro Karam, Chi To Ng, Sylvain Perron

Optim. Lett., 2008

Minimizing sum of completion times for batch scheduling of jobs with deteriorating processing times.

Joseph Y.-T. Leung, C. T. Ng, T. C. Edwin Cheng

Eur. J. Oper. Res., 2008

A discrete EOQ problem is solvable in O(logn) time.

Alexandr Kovalev, C. T. Ng

Eur. J. Oper. Res., 2008

Single-machine scheduling of multi-operation jobs without missing operations to minimize the total completion time.

T. C. Edwin Cheng, C. T. Ng, Jinjiang Yuan

Eur. J. Oper. Res., 2008

Multi-agent scheduling on a single machine with max-form criteria.

T. C. Edwin Cheng, C. T. Ng, Jinjiang Yuan

Eur. J. Oper. Res., 2008

A survey of scheduling problems with setup times or costs.

Ali Allahverdi, C. T. Ng, T. C. Edwin Cheng, Mikhail Y. Kovalyov

Eur. J. Oper. Res., 2008

Hamilton-connectivity of 3-domination critical graphs with alpha=delta+1 >= 5.

Yaojun Chen, T. C. Edwin Cheng, C. T. Ng

Discret. Math., 2008

Group sequencing around a common due date.

T. C. Edwin Cheng, Mikhail Y. Kovalyov, C. T. Ng, Sze Sing Lam

Discret. Optim., 2008

Single-machine scheduling with deteriorating jobs under a series-parallel graph constraint.

Ji-Bo Wang, C. T. Ng, T. C. Edwin Cheng

Comput. Oper. Res., 2008

2007

Scheduling jobs with agreeable processing times and due dates on a single batch processing machine.

L. L. Liu, C. T. Ng, T. C. Edwin Cheng

Theor. Comput. Sci., 2007

Batching and scheduling in a multi-machine flow shop.

C. T. Ng, Mikhail Y. Kovalyov

J. Sched., 2007

Due-date assignment and parallel-machine scheduling with deteriorating jobs.

T. C. E. Cheng, L. Y. Kang, C. T. Ng

J. Oper. Res. Soc., 2007

Approximability of single machine scheduling with fixed jobs to minimize total completion time.

Jinjiang Yuan, Y. X. Lin, C. T. Ng, T. C. Edwin Cheng

Eur. J. Oper. Res., 2007

NP-hardness of the single-variable-resource scheduling problem to minimize the total weighted completion time.

Jinjiang Yuan, T. C. Edwin Cheng, C. T. Ng

Eur. J. Oper. Res., 2007

Fixed interval scheduling: Models, applications, computational complexity and algorithms.

Mikhail Y. Kovalyov, C. T. Ng, T. C. Edwin Cheng

Eur. J. Oper. Res., 2007

The Ramsey numbers for a cycle of length six or seven versus a clique of order seven.

T. C. Edwin Cheng, Yaojun Chen, Yunqing Zhang, C. T. Ng

Discret. Math., 2007

Paired domination on interval and circular-arc graphs.

T. C. Edwin Cheng, Liying Kang, C. T. Ng

Discret. Appl. Math., 2007

An improved algorithm for the p-center problem on interval graphs with unit lengths.

T. C. Edwin Cheng, Liying Kang, C. T. Ng

Comput. Oper. Res., 2007

2006

Multi-agent scheduling on a single machine to minimize total weighted number of tardy jobs.

T. C. Edwin Cheng, C. T. Ng, Jinjiang Yuan

Theor. Comput. Sci., 2006

Single machine batch scheduling problem with family setup times and release dates to minimize makespan.

Jinjiang Yuan, Zhaohui Liu, C. T. Ng, T. C. Edwin Cheng

J. Sched., 2006

An O(n²) algorithm for scheduling equal-length preemptive jobs on a single machine to minimize total tardiness.

Zhongjun Tian, C. T. Ng, T. C. Edwin Cheng

J. Sched., 2006

A note on the complexity of the problem of two-agent scheduling on a single machine.

C. T. Ng, T. C. Edwin Cheng, Jinjiang Yuan

J. Comb. Optim., 2006

A new algorithm for online uniform-machine scheduling to minimize the makespan.

T. C. Edwin Cheng, C. T. Ng, Vladimir Kotov

Inf. Process. Lett., 2006

A note on acyclic domination number in graphs of diameter two.

T. C. Edwin Cheng, Yaojun Chen, C. T. Ng

Discret. Appl. Math., 2006

Minimizing total completion time in a two-machine flow shop with deteriorating jobs.

Ji-Bo Wang, C. T. Daniel Ng, T. C. Edwin Cheng, Li-Li Liu

Appl. Math. Comput., 2006

2005

Minimizing Completion Time Variance with Compressible Processing Times.

C. T. Ng, Xiaoqiang Cai, T. C. E. Cheng, Sze Sing Lam

J. Glob. Optim., 2005

Single machine due-date scheduling of jobs with decreasing start-time dependent processing times.

T. C. E. Cheng, L. Y. Kang, C. T. Ng

Int. Trans. Oper. Res., 2005

On the single machine total tardiness problem.

Zhongjun Tian, C. T. Ng, T. C. Edwin Cheng

Eur. J. Oper. Res., 2005

Single machine scheduling to minimize total weighted tardiness.

T. C. Edwin Cheng, C. T. Ng, Jinjiang Yuan, Zhaohui Liu

Eur. J. Oper. Res., 2005

A note on domination and minus domination numbers in cubic graphs.

Yaojun Chen, T. C. Edwin Cheng, C. T. Ng, Erfang Shan

Appl. Math. Lett., 2005

Group Scheduling with Controllable Setup and Processing Times: Minimizing Total Weighted Completion Time.

C. T. Ng, T. C. Edwin Cheng, Adam Janiak, Mikhail Y. Kovalyov

Ann. Oper. Res., 2005

Scheduling to Minimize Makespan with Time-Dependent Processing Times.

Liying Kang, T. C. Edwin Cheng, C. T. Ng, Min Zhao

Proceedings of the Algorithms and Computation, 16th International Symposium, 2005

2004

The unbounded single machine parallel batch scheduling problem with family jobs and release dates to minimize makespan.

Jinjiang Yuan, Zhaohui Liu, C. T. Ng, T. C. Edwin Cheng

Theor. Comput. Sci., 2004

Due-date assignment and single machine scheduling with deteriorating jobs.

T. C. E. Cheng, Liying Kang, C. T. Ng

J. Oper. Res. Soc., 2004

Single machine batch scheduling with jointly compressible setup and processing times.

C. T. Daniel Ng, T. C. Edwin Cheng, Mikhail Y. Kovalyov

Eur. J. Oper. Res., 2004

2003

Concurrent Open Shop Scheduling to Minimize the Weighted Number of Tardy Jobs.

C. T. Ng, T. C. Edwin Cheng, Jinjiang Yuan

J. Sched., 2003

A Stronger Complexity Result for the Single Machine Multi-Operation Jobs Scheduling Problem to Minimize the Number of Tardy Jobs.

T. C. Edwin Cheng, C. T. Ng, Jinjiang Yuan

J. Sched., 2003

The Single Machine Batching Problem with Family Setup Times to Minimize Maximum Lateness is Strongly NP-Hard.

T. C. Edwin Cheng, C. T. Ng, Jinjiang Yuan

J. Sched., 2003

On the single machine serial batching scheduling problem to minimize total completion time with precedence constraints, release dates and identical processing times.

C. T. Ng, T. C. Edwin Cheng, Jinjiang Yuan, Zhaohui Liu

Oper. Res. Lett., 2003

Batch scheduling with controllable setup and processing times to minimize total completion time.

C. T. Daniel Ng, T. C. E. Cheng, Mikhail Y. Kovalyov

J. Oper. Res. Soc., 2003

Single machine scheduling with a variable common due date and resource-dependent processing times.

C. T. Daniel Ng, T. C. Edwin Cheng, Mikhail Y. Kovalyov, Sze Sing Lam

Comput. Oper. Res., 2003

2002

A note on the single machine serial batching scheduling problem to minimize maximum lateness with precedence constraints.

C. T. Ng, T. C. Edwin Cheng, Jinjiang Yuan

Oper. Res. Lett., 2002

Scheduling start time dependent jobs to minimize the total weighted completion time.

Aleksander Bachman, T. C. Edwin Cheng, Adam Janiak, C. T. Daniel Ng

J. Oper. Res. Soc., 2002

Strong NP-hardness of the single machine multi-operation jobs total completion time scheduling problem.

C. T. Ng, T. C. Edwin Cheng, Jinjiang Yuan

Inf. Process. Lett., 2002

Three scheduling problems with deteriorating jobs to minimize the total completion time.

C. T. Ng, T. C. Edwin Cheng, Aleksander Bachman, Adam Janiak

Inf. Process. Lett., 2002

1999

Data reduction in integrated reverse engineering and rapid prototyping.

Y. H. Chen, C. T. Ng, Y. Z. Wang

Int. J. Comput. Integr. Manuf., 1999