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Pitfall 2: Inaccurate Score Estimation in Low Data-Density Regions
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Classroom Contents
Generative Modeling by Estimating Gradients of the Data Distribution - Stefano Ermon
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- 1 Intro
- 2 Progress in generative models of text
- 3 Implicit Generative Models Implicit models: directly represent the sampling process
- 4 Representation of Probability Distributions
- 5 Learning Deep Energy-Based Models using Scores
- 6 Learning with Sliced Score Matching
- 7 Experiments: Scalability and Speed
- 8 Experiments: Fitting Deep Kernel Exponential Families
- 9 From Score Estimation to Sample Generation
- 10 Pitfall 1: Manifold Hypothesis
- 11 Pitfall 2: Inaccurate Score Estimation in Low Data-Density Regions
- 12 Data Modes
- 13 Gaussian Perturbation
- 14 Annealed Langevin Dynamics
- 15 Joint Score Estimation
- 16 Experiments: Sampling
