Results for "function approximation"

18 results

Surrogate Model Advanced

Fast approximation of costly simulations.

AI in Science
Universal Approximation Theorem Intermediate

Neural networks can approximate any continuous function under certain conditions.

AI Economics & Strategy
Loss Function Intermediate

A function measuring prediction error (and sometimes calibration), guiding gradient-based optimization.

Foundations & Theory
Stochastic Approximation Intermediate

Optimization under uncertainty.

Foundations & Theory
Supervised Learning Intermediate

Learning a function from input-output pairs (labeled data), optimizing performance on predicting outputs for unseen inputs.

Machine Learning
Parameters Intermediate

The learned numeric values of a model adjusted during training to minimize a loss function.

Foundations & Theory
Neural Network Intermediate

A parameterized function composed of interconnected units organized in layers with nonlinear activations.

Neural Networks
Loss Landscape Intermediate

The shape of the loss function over parameter space.

AI Economics & Strategy
Condition Number Advanced

Sensitivity of a function to input perturbations.

Mathematics
Gradient Advanced

Direction of steepest ascent of a function.

Mathematics
Lyapunov Stability Intermediate

Stability proven via monotonic decrease of Lyapunov function.

Foundations & Theory
Inverse Reinforcement Learning Advanced

Inferring reward function from observed behavior.

Reinforcement Learning
Objective Function Intermediate

A scalar measure optimized during training, typically expected loss over data, sometimes with regularization terms.

Optimization
Activation Function Intermediate

Nonlinear functions enabling networks to approximate complex mappings; ReLU variants dominate modern DL.

Foundations & Theory
Function Calling Intermediate

Constraining model outputs into a schema used to call external APIs/tools safely and deterministically.

Foundations & Theory
Value Function Intermediate

Expected cumulative reward from a state or state-action pair.

AI Economics & Strategy
Q-Function Intermediate

Expected return of taking action in a state.

AI Economics & Strategy
Likelihood Function Advanced

Probability of data given parameters.

Probability & Statistics