Create disease-modeling.md with modeling approaches

Added a new document on computational disease modeling, detailing various modeling approaches and their goals.

Author: vishwaparekh

research/disease-modeling.md

@@ -0,0 +1,16 @@
+---
+layout: default
+title: Disease Modeling
+---
+
+## Computational Disease Modeling
+
+We build imaging-based models that probe disease mechanisms at the individual patient level.
+
+Representative directions include:
+
+- **Tumor connectomics** – modeling tumors as networks to understand spatial organization, invasion patterns, and risk.
+- **Longitudinal evolution** – using multi-timepoint imaging to predict how tumors or organs change under treatment.
+- **Counterfactual modeling** – exploring alternative trajectories in latent space to reason about “what if” scenarios for therapy.
+
+The goal is to move beyond static endpoint prediction toward dynamic models of disease behavior.