A Review of Bilevel Optimization: Methods, Emerging Applications, and Recent Advancements
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| Format: | Preprint |
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2025
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| _version_ | 1866908631066214400 |
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| author | Pujara, Dhaval Sinha, Ankur |
| author_facet | Pujara, Dhaval Sinha, Ankur |
| contents | This paper presents a comprehensive review of techniques proposed in the literature for solving bilevel optimization problems encountered in various real-life applications. Bilevel optimization is an appropriate choice for hierarchical decision-making situations, where a decision-maker needs to consider a possible response from stakeholder(s) for each of its actions to achieve his own goals. Mathematically, it leads to a nested optimization structure, in which a primary (leader's) optimization problem contains a secondary (follower's) optimization problem as a constraint. Various forms of bilevel problems, including linear, mixed-integer, single-objective, and multi-objective, are covered. For bilevel problem solving methods, various classical and evolutionary approaches are explained. Along with an overview of various areas of applications, two recent considerations of bilevel approach are introduced. The first application involves a bilevel decomposition approach for solving general optimization problems, and the second application involves Neural Architecture Search (NAS), which is a prime example of a bilevel optimization problem in the area of machine learning. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2511_03448 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | A Review of Bilevel Optimization: Methods, Emerging Applications, and Recent Advancements Pujara, Dhaval Sinha, Ankur Optimization and Control G.1.6 This paper presents a comprehensive review of techniques proposed in the literature for solving bilevel optimization problems encountered in various real-life applications. Bilevel optimization is an appropriate choice for hierarchical decision-making situations, where a decision-maker needs to consider a possible response from stakeholder(s) for each of its actions to achieve his own goals. Mathematically, it leads to a nested optimization structure, in which a primary (leader's) optimization problem contains a secondary (follower's) optimization problem as a constraint. Various forms of bilevel problems, including linear, mixed-integer, single-objective, and multi-objective, are covered. For bilevel problem solving methods, various classical and evolutionary approaches are explained. Along with an overview of various areas of applications, two recent considerations of bilevel approach are introduced. The first application involves a bilevel decomposition approach for solving general optimization problems, and the second application involves Neural Architecture Search (NAS), which is a prime example of a bilevel optimization problem in the area of machine learning. |
| title | A Review of Bilevel Optimization: Methods, Emerging Applications, and Recent Advancements |
| topic | Optimization and Control G.1.6 |
| url | https://arxiv.org/abs/2511.03448 |