Cost Function

[/kɔst ˈfʌŋkʃən/]
nounpl: Cost Functions
Função de Custo
1. A mathematical function that measures the error or loss between predicted values and actual values in a machine learning model, used to optimize the model's parameters
The neural network uses a cost function to minimize the difference between predicted and actual outputs.
A rede neural usa uma função de custo para minimizar a diferença entre as saídas preditas e reais.
2. In economics and operations research, a function that calculates the total cost of production or operation based on various input variables
The company's cost function depends on labor, materials, and overhead expenses.
A função de custo da empresa depende de despesas com mão de obra, materiais e custos indiretos.
3. An objective function in optimization problems that represents the quantity to be minimized or maximized
Engineers developed a cost function to optimize the manufacturing process.
Os engenheiros desenvolveram uma função de custo para otimizar o processo de fabricação.
The term 'Cost Function' is widely used in both Brazilian and American technical and academic contexts, particularly in machine learning, data science, and economics. In Brazil, it is primarily used in STEM fields and is increasingly common with the growth of technology and AI industries in São Paulo and other major hubs.
Synonyms / Sinônimos
Loss FunctionObjective FunctionError FunctionFitness Function

Regional Variations

General Brazilian
Função de Custo
Standard term used in academic and technical contexts
São Paulo
Função de Custo / Função Objetivo
Both terms are commonly used in business and engineering sectors
Rio de Janeiro
Função de Custo
Technical term used in research and development
Portugal
Função de Custo
Identical to Brazilian Portuguese; used in engineering and computer science

Related Words

Gradient DescentOptimizationMachine LearningParameter TuningLoss MinimizationRegression

Related Idioms & Phrases

Minimize the cost function
Cost function optimization
Cost function convergence
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