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@ -90,6 +90,106 @@ _(Include a visual of how $\Delta$ affects $P$)_
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# Goals and Outcomes
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# Research Methodology
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### **Slide 1: Research Motivation**
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**Assertion:** Current methods for generating unstructured perturbations are limited in flexibility and generalizability.
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- **Evidence:**
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- Unstructured perturbations lack adaptability to various scenarios.
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- Proposed approach leverages diffusion generative models for flexible perturbation generation.
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**Visuals:**
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- A flowchart contrasting traditional perturbation methods vs. diffusion models.
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---
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### **Slide 2: Diffusion Model Features**
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**Assertion:** Frequency response data forms the foundation for feature creation in diffusion models.
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- **Evidence:**
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- Features discretize dynamics into a vector of magnitude and phase.
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- Supports training without imparting unintended structure.
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**Visuals:**
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- Diagram from Figure 1 showing the discretization of frequency response.
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---
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### **Slide 3: Creating Frequency Features**
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**Assertion:** Discretizing the frequency response enables scalable feature sets.
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- **Evidence:**
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- Fine resolution for complex behavior or coarse for computational efficiency.
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- Features provide physical context across frequency scales.
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**Visuals:**
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- Table comparing fine vs. coarse frequency sampling.
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- Annotated example of magnitude/phase vector with scales labeled.
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---
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### **Slide 4: Training the Diffusion Model**
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**Assertion:** Diffusion models learn unstructured perturbations through iterative noise transformation.
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- **Evidence:**
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- Forward process adds noise; reverse process removes it.
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- Training maximizes log-likelihood between input and reconstructed data.
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**Visuals:**
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- Flowchart of the diffusion training process.
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- Key equations (e.g., Eq. \ref{forward_kernel} and \ref{reverse_kernel}) simplified with annotations.
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---
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### **Slide 5: Generating New Perturbations**
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**Assertion:** The trained diffusion model generates diverse and flexible perturbations.
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- **Evidence:**
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- Outputs are probabilistic, enabling variability.
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- Perturbation level controlled by adjusting time steps.
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**Visuals:**
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- Illustration of forward/reverse process with arrows and annotations.
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- Graph showing interpolation from partial time steps.
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---
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### **Slide 6: Ensuring Valid Perturbations**
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**Assertion:** Generated perturbations must meet robust control requirements.
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- **Evidence:**
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- No additional right-hand plane poles.
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- Supremum gain of Δ below threshold β.
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**Visuals:**
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- Diagram of pole-zero constraints.
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- Workflow for verifying Δ and fitting transfer functions.
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---
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### **Slide 7: Advantages of Diffusion Models**
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**Assertion:** Diffusion models provide a novel solution for generating unstructured perturbations.
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- **Evidence:**
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- Introduce non-deterministic variability into perturbations.
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- Overcome the limitations of traditional structured approaches.
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**Visuals:**
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- Comparative chart: structured vs. unstructured methods.
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- Examples of perturbed frequency responses generated by the model.
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# Metrics of Success
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# Risks and Contingencies
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#
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