pass::styblinski_tang_function Class Reference
#include <styblinski_tang_function.hpp>
Inheritance diagram for pass::styblinski_tang_function:
Collaboration diagram for pass::styblinski_tang_function:
Public Member Functions | |
| styblinski_tang_function (const arma::uword dimension) | |
| double | evaluate (const arma::vec &agent) const override |
 Public Member Functions inherited from pass::problem | |
| arma::vec | bounds_range () const noexcept |
| arma::uword | dimension () const noexcept |
| problem (const arma::uword dimension, const double lower_bound, const double upper_bound, const std::string &name) | |
| problem (const arma::vec &lower_bounds, const arma::vec &upper_bounds, const std::string &name) | |
| double | evaluate_normalised (const arma::vec &normalised_agent) const |
| arma::mat | normalised_random_agents (const arma::uword count) const |
| arma::mat | normalised_hammersley_agents (const arma::uword count) const |
| arma::mat | initialise_normalised_agents (const arma::uword count) const |
Additional Inherited Members | |
| Public Attributes inherited from pass::problem | |
| const arma::vec | lower_bounds |
| const arma::vec | upper_bounds |
| const std::string | name |
Detailed Description
The styblinski function is a common toy problem with a very small computational cost, used for testing and benchmarking algorithms. It is a multimodal function.
Its optimal parameter = (-2.903534, ..., -2.903534) and optimal function value = -39.16599 * Dimension.
\[ f(x_1 \cdots x_n) = \frac{1}{2} \sum_{i=1}^n (x_i^4 - 16x_i^2 + 5x_i) \]
\[ -5.00 \leq x_i \leq 5.00 \]
\[ \text{minimum at }f(-2.903534, \cdots, -2.903534) = -39.16599 \cdot n \]
Constructor & Destructor Documentation
◆ styblinski_tang_function()
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explicit |
Initialises a styblinski function with dimension dimensions, lower bounds of -5.0 and upper bounds of 5.0.
Member Function Documentation
◆ evaluate()
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overridevirtual |
Evaluates this problem at agent, which must match the dimensions of this problem.
Implements pass::problem.
The documentation for this class was generated from the following files:
- /Users/romeo/Desktop/PASS/include/pass_bits/problem/optimisation_benchmark/styblinski_tang_function.hpp
- /Users/romeo/Desktop/PASS/src/problem/optimisation_benchmark/styblinski_tang_function.cpp