# Network State Estimation
**Entity class:** Core Conceptual Layer concept
**Network State Estimation** is a relational system whose structure, membership, and behavior can change over time. Used correctly, Network State Estimation supports conditional inference and collection planning without promoting proximity, exposure, or model output into proof.
## Counterterrorism predictive-graph role
The page records capability and analytic function. Any claim of a named operational deployment remains subject to the [[wiki/Counterterrorism Predictive Graph Evidence Ladder|evidence ladder]]. The analytic state should distinguish ground truth, observed evidence, inferred state, and predicted state.
## Relationships
- **domain router:** [[wiki/Counterterrorism Predictive Graph|Counterterrorism Predictive Graph]].
- **ontology neighbors:** [[wiki/Graph-Based Intelligence Analysis|Graph-Based Intelligence Analysis]] and [[wiki/Person-in-Network Model|Person-in-Network Model]].
- **synthesis:** [[wiki/Counterterrorism Predictive Graph|Counterterrorism Predictive Graph]] and [[wiki/Predictive Intelligence Loop|Predictive Intelligence Loop]].
## Sources
- [IARPA — AGILE technical overview (accessed September 23, 2026)](https://www.iarpa.gov/images/research-programs/AGILE/AGILE_ModSim_-_Final.pdf)
- [IARPA — Making Data Analysis More AGILE (accessed September 23, 2026)](https://www.iarpa.gov/newsroom/article/making-data-analysis-more-agile)
**As of:** 2026-09-23