SLIMQ: Secure Lightweight Online/Offline Multi-Dimensional Range Query in Cloud

SLIMQ is a privacy-preserving system for searching multi-dimensional datasets (data with multiple attributes) stored on cloud servers without revealing the search query or sensitive data to the cloud. The system uses R-trees (a data structure for organizing spatial data), prefix encoding (converting queries into searchable patterns), and secret sharing (splitting information among multiple parties) to perform efficient searches while keeping data private.