Fitness Function

A fitness function is a tool used to evaluate how well a particular solution or candidate is performing in achieving a specific goal. Imagine it as a scorekeeper that measures the quality of different options, helping identify which ones are better suited to solving a problem. Used in areas like optimization and machine learning, the fitness function provides feedback on each candidate, guiding improvements and selections. Essentially, it quantifies success, enabling systems to iterate and evolve towards more effective solutions efficiently.