1. Responsible for algorithm design in various parts of the supply chain, including distribution network design, inventory control, long-haul and short-haul routing and schedule design, etc.2. Scenario 1: Distribution network design(1) Took a chain catering company as example, selected optimal number and location of region warehouses, considering costs like fixed cost, transportation cost, hoding cost.(2) Implemented P-median model variant(3) Implemented location-routing… Show more 1. Responsible for algorithm design in various parts of the supply chain, including distribution network design, inventory control, long-haul and short-haul routing and schedule design, etc.2. Scenario 1: Distribution network design(1) Took a chain catering company as example, selected optimal number and location of region warehouses, considering costs like fixed cost, transportation cost, hoding cost.(2) Implemented P-median model variant(3) Implemented location-routing model3. Scenario 2: Transferring Hub Optimization(1) Assigned origin-desitination pairs to certain docks of to minimize overall operation costs of the hub(2) Built assignment model in consideration of capacity constraints and time-limit constraints and solved by GRASP heuristic method4. Scenario 3: Long-haul routing and scheduling(1) Implemented arc-based model and path-based model to solve the Service Network Problem based on time-space network(2) Built the program into a python package, which could be imported and used directly5. Scenario 4: Short-haul routing(1) Implemented ALNS heuristic framework to solve the vehicle routing problem6. Scenario 5: AGV scheduling(1) Built AGV controlling system using Python, including assignment, dispatching, routing and avoiding collision and deadlock(2) Simulated with Unity, communicating with controlling system by MQTT Show less

1.Intracity service network design- Designed intracity service network for 89 hubs in Shanghai.- Determined the network and load plans as well as vehicle types for each origin-destination pair, using a "bus" mode.- Built a two-phase mixed integer programming model, and solved by column generation and heuristics to get the approximately optimal solution.- Validated the result by a simulation model and then tried implementing the schedule in practice.2. FengChi - Wave… Show more 1.Intracity service network design- Designed intracity service network for 89 hubs in Shanghai.- Determined the network and load plans as well as vehicle types for each origin-destination pair, using a "bus" mode.- Built a two-phase mixed integer programming model, and solved by column generation and heuristics to get the approximately optimal solution.- Validated the result by a simulation model and then tried implementing the schedule in practice.2. FengChi - Wave Sorting Project- Responsible for algorithm design work of the FengChi project in SF East China area.- Determined a sorting plan for each "wave" (i.e. time period) by mathematics model, simulated the sorting hub with the result and calculated the staff size.- Approved the validation of the operation department and implemented in Shanghai.3. SF Warehousing & Delivering Project- Responsible for the routing algorithm design and product service level assessment.- Designed the service network from Suzhou to the whole country, and calculated the service level, based on the flight resource of SF.- Determined the Pareto curve of time and cost using multi-objective genetic algorithm, and validated by the operations department.4. Intra-city delivery for a Chinese apparel company- Responsible for the routing design of all retailers in Jiangxi. - Determined the delivery mode (self-support or outsource), routes, vehicle type, vehicle number, vehicle pricing mode, under the requirement of demand and time window.- Obtained the approximate optimal solution using a two-phase mixed integer programming model, and implemented by the operations department. Show less

1. Built inventory analysis tool using Excel VBA. Assigned priority to each product based on the current and potential future inventory. Analysis result was used to optimize inventory and adjust production plan.2. Analyzed production and shipping data from DEUTZ AG. Automated the whole analysis and visualized results using VBA in Excel and PowerPoint.3. Classified parts with proper HTS (Harmonized Tariff Schedule) code with the cooperation of a third party consulting… Show more 1. Built inventory analysis tool using Excel VBA. Assigned priority to each product based on the current and potential future inventory. Analysis result was used to optimize inventory and adjust production plan.2. Analyzed production and shipping data from DEUTZ AG. Automated the whole analysis and visualized results using VBA in Excel and PowerPoint.3. Classified parts with proper HTS (Harmonized Tariff Schedule) code with the cooperation of a third party consulting company.4. Responsible for orders and deliveries in SAP. Show less