Core Concepts
Microcanonical gradient descent allows for efficient sampling while controlling entropy loss.
Abstract
The content discusses mean-field microcanonical gradient descent, a sampling procedure for energy-based models. It introduces the concept of normalizing flows and proposes a mean-field approach to address entropy loss issues in the descent process. The article explores applications in financial time series, showcasing improvements on synthetic and real data.
Structure:
Abstract:
Introduces microcanonical gradient descent for energy-based models.
Introduction:
Discusses the balance between generative model characteristics.
Energy-Based Models:
Explains energy-based models and their constraints.
Microcanonical Gradient Descent Model (MGDM):
Introduces MGDM as an approximation of the microcanonical model for easier sampling.
Mean-Field Microcanonical Gradient Descent Model (MF-MGDM):
Proposes MF-MGDM to address entropy collapse issues in MGDM.
Related Work:
Surveys literature on energy-based models and MGDM applications.
Overfitting to Target Energy:
Discusses overfitting risks in pushing samples towards target energy vectors.
Numerical Experiments:
Evaluates MF-MGDM performance on synthetic and real financial data.
Stats
MGDMは高次元分布の効率的なサンプリングを提供します。
MGDMはエントロピー損失を制御しながらサンプリングを行います。
MF-MGDMはMGDMのエントロピー崩壊問題に対処するために提案されました。
MF-MGDMは実験データでの性能を評価します。