Maximum Likelihood Estimation

★★★★☆Undergraduate

📖Definition

Estimation method finding parameters that best explain observed data

📐Formulas

Likelihood: L(θ) = P(data|θ) = ∏P(xᵢ|θ)
Log-likelihood: ℓ(θ) = Σlog P(xᵢ|θ)
MLE: θ̂ = argmax L(θ)

✏️Examples

예제 1

Normal MLE: μ̂=x̄, σ̂²=s²

예제 2

Bernoulli MLE: p̂ = x̄

Applications

Parameter estimation

Machine learning

Statistical modeling

🔗Related Documents

#MLE#최대가능도#likelihood#estimation