相关实验视频
Updated: Jun 18, 2025

10:09
Operation of the Collaborative Composite Manufacturing CCM System
Published on: October 1, 2019
6.6K
在基于SOCP的断层切割方法上,用于解决一类整数双级非线性程序
Elisabeth Gaar1, Jon Lee2, Ivana Ljubić3
1Institute of Production and Logistics Management, Johannes Kepler University Linz, Linz, Austria.
概括
本研究引入了对具有第二阶段约束的整数双级程序的断层切割 (DC). 这些新方法提高了解决方案性能,并且在复杂的优化问题上优于现有的解决方案.
科学领域:
- 优化优化 优化优化
- 运营研究 运营研究
- 数学编程 数学编程
背景情况:
- 整数双级程序与第二阶段的制约束呈现显著的计算挑战.
- 现有的方法难以应对上层次的二次圆约束和下层次的凸正方形目标的复杂性.
研究的目的:
- 开发新的断层切割 (DCs) 以有效地解决整数双级程序.
- 提出有效的直流分离策略和处理断层和规范化的方法.
- 为特定问题变体引入分支和切割算法和切割平面方法.
主要方法:
- 开发一种以二次圆为基础的切割生成程序,用于断层切割.
- 实施直流分离策略,包括删除冗余和规范化.
- 设计用于一般整数双级程序的分支和切割算法和用于二进制实例的切割平面方法.
主要成果:
- 拟议的断层切割有效地分离了两级不可行的解决方案.
- 计算研究表明,使用增强解决方案方法显著提高了性能.
- 开发的方法在各种问题实例上优于最先进的通用解决方案.
结论:
- 新的断层切割式方法为解决具有挑战性的整数双级程序提供了强大的工具.
- 与现有的通用解决方案相比,拟议的算法提供了更高的性能.
- 该研究强调了断层切割在处理复杂的双层优化问题的有效性.
相关概念视频
Mechanistic Models: Compartment Models in Algorithms for Numerical Problem Solving
47
Mechanistic models play a crucial role in algorithms for numerical problem-solving, particularly in nonlinear mixed effects modeling (NMEM). These models aim to minimize specific objective functions by evaluating various parameter estimates, leading to the development of systematic algorithms. In some cases, linearization techniques approximate the model using linear equations.
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
In individual population analyses, different algorithms are employed, such as Cauchy's method, which uses a...
47
Alternative Sets of Equilibrium Equations
385
When analyzing the behavior of structures, engineers often rely on the concept of equilibrium. This refers to the state where all forces and moments acting on a system balance each other, resulting in no net movement or rotation. In many cases, equilibrium can be described by a set of standard equations. However, in some situations, alternative sets of equilibrium equations must be used to describe the system's behavior accurately.
One example of such a situation can be observed in a...
One example of such a situation can be observed in a...
385
BIBO stability of continuous and discrete -time systems
379
System stability is a fundamental concept in signal processing, often assessed using convolution. For a system to be considered bounded-input bounded-output (BIBO) stable, any bounded input signal must produce a bounded output signal. A bounded input signal is one where the modulus does not exceed a certain constant at any point in time.
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
To determine the BIBO stability, the convolution integral is utilized when a bounded continuous-time input is applied to a Linear Time-Invariant (LTI) system....
379
Statically Indeterminate Problem Solving
373
Statically indeterminate problems are those where statics alone can not determine the internal forces or reactions. Consider a structure comprising two cylindrical rods made of steel and brass. These rods are joined at point B and restrained by rigid supports at points A and C. Now, the reactions at points A and C and the deflection at point B are to be determined. This rod structure is classified as statically indeterminate as the structure has more supports than are necessary for maintaining...
373
Parameters Affecting Nonlinear Elimination: Zero-Order Input, First-Order Absorption and Two-Compartment Model
60
Drugs administered through various routes can lead to nonlinear elimination, resulting in complex pharmacokinetic behaviors crucial to understanding efficacious drug dosing.
When a drug is administered through a constant intravenous infusion and eliminated via nonlinear pharmacokinetics, it follows zero-order input. For example, oral drugs undergo first-order absorption upon administration and are eliminated through nonlinear pharmacokinetics.
In the case of subcutaneously administered drugs,...
When a drug is administered through a constant intravenous infusion and eliminated via nonlinear pharmacokinetics, it follows zero-order input. For example, oral drugs undergo first-order absorption upon administration and are eliminated through nonlinear pharmacokinetics.
In the case of subcutaneously administered drugs,...
60
Constraints and Statical Determinacy
599
In structural engineering, the equilibrium of a system is not only determined by its equations of equilibrium but also with the help of constraints. Constraints refer to restrictions on the motion of a system. The proper combinations of constraints can minimize the total number of constraints needed to maintain a system in mechanical equilibrium. When this happens, the system is said to be statically determinate. For such systems, the unknown reaction supports can be estimated using equilibrium...
599

