# Anomaly Detection
**Entity class:** Sensor And Multimodal-Fusion Layer concept
**Anomaly Detection** is an observation or analytic method used to identify departures, recurring structure, or candidate signals for further assessment. The operational value of Anomaly Detection lies in preserving time, provenance, confidence, and alternative explanations.
## 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/Intelligence Fusion|Intelligence Fusion]].
- **ontology neighbors:** [[wiki/Activity Detection|Activity Detection]] and [[wiki/Outlier Detection|Outlier Detection]].
- **synthesis:** [[wiki/Counterterrorism Predictive Graph|Counterterrorism Predictive Graph]] and [[wiki/Predictive Intelligence Loop|Predictive Intelligence Loop]].
## Sources
- [IARPA — DIVA program (accessed September 23, 2026)](https://www.iarpa.gov/research-programs/diva)
- [IARPA — AGILE technical overview (accessed September 23, 2026)](https://www.iarpa.gov/images/research-programs/AGILE/AGILE_ModSim_-_Final.pdf)
**As of:** 2026-09-23