value function
[/ˈvæljuː ˈfʌŋkʃən/]
nounpl: value functions
função de valor
1. In mathematics and economics, a function that assigns a numerical value to each state or action in a system, representing the expected utility or benefit
The value function in reinforcement learning estimates the expected cumulative reward from a given state.
A função de valor no aprendizado por reforço estima a recompensa cumulativa esperada de um estado dado.
2. In decision theory and optimization, a mathematical representation of preferences or worth of outcomes
Economists use a value function to model consumer preferences and predict purchasing behavior.
Economistas usam uma função de valor para modelar as preferências do consumidor e prever comportamento de compra.
3. In game theory and control systems, a function that quantifies the optimality of decisions or strategies
The Bellman equation defines the recursive relationship of the value function.
A equação de Bellman define a relação recursiva da função de valor.
This is a highly specialized technical term used primarily in academic, research, and professional contexts in computer science, mathematics, economics, and engineering. It is not commonly used in everyday conversation in either Brazil or the USA. The term is fundamental to modern machine learning and artificial intelligence applications, making it increasingly important in tech-oriented professional environments.
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