Research Briefs

Utilize operations research theories and algorithmic methods to solve problems related to production management, logistics distribution, or supply chain networks in enterprises, with the aim of enhancing corporate productivity and operational performance, while also training students in logical thinking and programming skills.

Currently, the world is facing the impact of artificial intelligence, making industrial upgrading a necessity. Businesses that operate in isolation are at risk of being phased out in this wave of AI. As a result, in the past two to three years, an increasing number of enterprises have been undergoing AI transformation.

The Supply Chain Management and Scheduling Optimization Laboratory has traditionally focused on developing optimized heuristic algorithms to solve supply chain and scheduling optimization problems. With the current advancements in AI technology and enhanced computing power, we are integrating machine learning and deep learning methods with heuristic algorithm techniques, focusing on the following industry and academic issues:


Machine Parameter Optimization Problem

For a long time, factory production machines often required engineers to adjust and identify appropriate production parameters to avoid producing defective goods. This process traditionally relied on engineers' experience, trial and error, or experimental design methods, often consuming a considerable amount of time and labor. Moreover, the parameters obtained might only be satisfactory rather than optimal. With the advancement of high-speed computing, this problem can now be addressed by constructing machine learning or deep learning models using a wealth of historical machine data. Heuristic algorithms can then be used to determine the optimal machine production parameters for a specific workpiece or batch. This not only reduces the time and manpower required for machine tuning but also decreases subsequent inspection costs, laying a foundation for implementing intelligent scheduling.

Feature Selection Problem

After completing a batch of work orders, factory production machines often require inspection to understand the quality of production. Since the quality of products might vary before production and production and environmental parameters may differ, it's challenging to capture all relevant parameters. Identifying factors affecting production quality is not easy. If factories could monitor all potential environmental and production parameters using IoT technology and sensors, key factors impacting quality could be quickly identified through machine learning/deep learning methods using extensive historical production data. This approach not only rapidly resolves production quality issues but also simplifies the number of features needed in the model construction for machine parameter optimization problems. These two issues complement each other in terms of factory production impact.

Heuristic Algorithm Parameter Optimization Problem

Throughout the development of heuristic algorithms, setting algorithm parameters has always been a critical issue, often directly affecting the quality of solutions. Traditionally, algorithm development focused more on constructing methods, with parameter optimization typically addressed through experimental design, past literature, or formulaic approaches. However, if we view this as a machine parameter optimization problem and construct machine learning or deep learning models through iterative improvements in search objectives and algorithm parameters, updating this model with each search and using the algorithm's optimized parameters obtained from feedback to calculate the target value, we can find the optimal solution through continuous model updates and algorithmic solution searches.

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Production Planning and Scheduling: This involves arranging the sequence of production activities or planning the production schedule. Past research has included semiconductor-related scheduling, cross-docking operations scheduling, and order acceptance and scheduling. Current focus areas are moving towards intelligent scheduling, machine maintenance scheduling, synchronized scheduling of machines and handling equipment, and medical scheduling.

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Semiconductor Production and Automated Material Handling Systems

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Cross-Docking Operations Scheduling

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Order Acceptance and Production Line Scheduling

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Supply Chain and Logistics Optimization: This primarily targets integrated route planning and location issues, establishing robust mathematical models and rapid algorithmic solutions to provide timely and convenient planning. Past research has included cross-docking operation route planning, integration of production scheduling and routing, and uncertainty in closed-loop supply chain network planning. Future aspirations include smart optimization path planning considering real-world aspects.

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Cross-Docking Operation Route Planning

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Production Scheduling and Routing

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Uncertainty in Supply Chain Networks

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Applied Operations Research: Past studies have included uncertainty in material cutting problems and warehouse order picking and batching issues. Currently focusing on algorithmic method development for medical feature set selection and classification.

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Material Cutting Problems

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Warehouse Order Picking and Batching Problems

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Smart Medical Feature Set Selection/Classification

Heuristic Algorithms
  • Single Solution Algorithms (Tabu Search/SA/VNS/Harmony Search)
  • Multi-Solution Algorithms (GA/ABC/PSO/Cuckoo Search/Bat Algorithm/Firefly Algorithm)
  • Hyperheuristics

Contact us

 SCMSO Lab@2024

Address

Room R2505, Yuanzhi University, No. 135 Yuandong Road, Zhongli District, Taoyuan City

Phone:

03-4638800#2516-2505

Fax:

(03)4638907

Administrator email:

Yi-Xian Lin s1125404@mail.yzu.edu.tw

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