Deontic Knowledge Graphs for Privacy Compliance in Multimodal Disaster Data Sharing
This addresses privacy compliance challenges for disaster response teams, though it is incremental as it builds on existing knowledge graph and policy methods.
The paper tackles the problem of ensuring privacy compliance in multimodal disaster data sharing by proposing a deontic knowledge graph framework that integrates disaster and policy knowledge graphs, resulting in exact-match decision correctness and sub-second latency for 5.1M triples and 316K images.
Disaster response requires sharing heterogeneous artifacts, from tabular assistance records to UAS imagery, under overlapping privacy mandates. Operational systems often reduce compliance to binary access control, which is brittle in time-critical workflows. We present a novel deontic knowledge graph-based framework that integrates a Disaster Management Knowledge Graph (DKG) with a Policy Knowledge Graph (PKG) derived from IoT-Reg and FEMA/DHS privacy drivers. Our release decision function supports three outcomes: Allow, Block, and Allow-with-Transform. The latter binds obligations to transforms and verifies post-transform compliance via provenance-linked derived artifacts; blocked requests are logged as semantic privacy incidents. Evaluation on a 5.1M-triple DKG with 316K images shows exact-match decision correctness, sub-second per-decision latency, and interactive query performance across both single-graph and federated workloads.