Optimizing Nonlinear Problems through Variable Aggregation

Optimizing Nonlinear Problems through Variable Aggregation

A novel approach to reduce computational complexity in engineering optimization

This research formalizes variable aggregation as a pre-solve technique to create more efficient reduced-space formulations of nonlinear optimization problems.

  • Develops a systematic approach for aggregating variables in nonlinear programming
  • Introduces an approximate maximum variable aggregation algorithm
  • Demonstrates improved computational performance for complex engineering optimization models
  • Extends techniques previously applied mainly to linear programming

Enabling more efficient solution of complex nonlinear optimization problems is critical for large-scale engineering applications including process design, power systems, and structural optimization where computational efficiency directly impacts practical implementation.

Variable aggregation for nonlinear optimization problems

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