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I have drafted a mathematical model for a supply-chain problem and developed several heuristic rules meant to select the best transport mode, packaging configuration, and spoilage-mitigation tactics. The scope is squarely within supply chain management, and I now want a fresh, expert set of eyes—ideally someone with a strong operations-research background—to confirm that my formulation is sound and to refine or correct it where needed. The current model couples inventory and transportation decisions, restricting shipments to road and rail at this stage, though I am open to suggestions about integrating additional modes if you see clear value. Key decision variables already cover routing frequencies, package size choices, and expected spoilage percentages; what I need is confirmation that the constraints are tight, the objective function is correctly structured, and the heuristics I’ve sketched actually drive the solution toward optimal or near-optimal outcomes. Please be comfortable with linear and mixed-integer programming, common heuristic techniques (e.g., genetic algorithms, or your preferred meta-heuristic), and solvers such as CPLEX, Gurobi, or open-source alternatives. A concise technical write-up explaining any revisions, along with commented model files or notebooks, will be the main deliverables. If you spot modeling gaps, propose concrete fixes and assist in fixing it; if the existing structure is solid, a brief validation note is enough. I’m ready to provide all current equations, data sets, and heuristic pseudocode the moment we start.
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Hi, My name is Mateen Khan. I am a Software Engineer with 3+ years of experience in software development and web development. I have carefully reviewed your project. You have developed a mathematical model for a supply-chain problem involving transport mode selection, packaging configuration, and spoilage-mitigation tactics, and you now need an independent technical review to verify the formulation, constraints, objective function, and heuristic rules. I am comfortable working with mathematical models, algorithms, and code-based implementations. I have strong problem-solving and programming skills that allow me to thoroughly examine model structures, validate logic, identify gaps, and suggest practical improvements. I can work with linear and mixed-integer programming formulations as well as heuristic approaches, and I am familiar with implementing and reviewing models using open-source solvers and Python-based tools. My approach will be: I am ready to start as soon as you share the current equations, data sets, and heuristic pseudocode. You can expect clean, documented deliverables within the agreed timeline of 2 days. Looking forward to working with you on this project. Best regards, Mateen Khan
₹2.500 INR på 2 dage
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2 freelancere byder i gennemsnit ₹2.750 INR på dette job

Hello, I can help you review, validate, and refine your supply-chain mathematical model from an Operations Research and optimization perspective. I have teaching experience in Operations Research, Linear Programming, Transportation Problems, optimization techniques, constraints, objective functions, and mathematical modeling, so I am comfortable reviewing the structure of your model and identifying formulation gaps or inconsistencies. My approach would be to first audit the existing formulation rather than unnecessarily rebuild it. If the model is already sound, I will provide a concise validation note. If I identify weaknesses, I will clearly explain the issue and provide a practical corrected formulation. I can also provide commented model files/notebooks and explain the revisions so the model remains understandable and reproducible. I would be happy to review the current formulation and start with the objective function, variables, and constraints before moving to the heuristic/solver validation.
₹3.000 INR på 2 dage
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