# SPPS: A Search Pattern Privacy System for Approximate Shortest Distance Query of Encrypted Graphs in IIoT

> Research article (IEEE Transactions on Systems Man and Cybernetics Systems, 2021) · cited 32× · AI/ML

**Wikidata**: [openalex:W3184859216](https://www.wikidata.org/wiki/openalex:W3184859216)  
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