Keyphrases
Group Query
80%
Query Services
45%
Proximity Services
40%
Hierarchical Index
40%
Sampling-based Inference
40%
Top-k Query
40%
Data Publication
40%
Spatial Keyword
40%
Query Privacy
40%
Data Privacy
40%
Why-questions
40%
Index Traversal
40%
Private Search
40%
Key-value Store
40%
Privacy-preserving
40%
K-Cover
40%
Ridesharing
40%
Social-aware
40%
High-dimensional Data
40%
Differentially Private
40%
Geosocial
40%
Location-based Social Networks
40%
Spatial Processing
40%
Location Information
38%
Query Processing
36%
Mobile Users
28%
Proximity Query
28%
Location Privacy
28%
Service Provider
22%
Oblivious Transfer
20%
Secure Protocol
20%
Sensitive Attribute
20%
Dependency Graph
20%
B+ Tree
20%
Secure multi-party Computation
20%
Database Indexing
20%
Traversal Path
20%
Indexing Methods
20%
Query Types
20%
Computing Paradigm
20%
Homomorphic Encryption
20%
Data Query
20%
Search Queries
20%
R-tree
20%
Performance Studies
20%
Communication Overhead
20%
Homomorphic Encryption Scheme
20%
Data Outsourcing
20%
Query Point
20%
Recent Advances
20%
Security Performance
20%
Security Analysis
20%
Computation Overhead
20%
Cryptography
20%
Joint Distribution
20%
Privacy Requirements
17%
Hong Kong
17%
NP-hard
16%
Pruning Strategy
16%
Practical Usefulness
16%
Novel Index
16%
Performance Improvement
13%
Query Keyword
13%
Rank Estimation
13%
Spatial Keyword Query
13%
Geotag
13%
Missing Object
13%
Two Dimensional
13%
Geometry Problems
13%
O-Cost
13%
Ranking Function
13%
Index-based
13%
Query Refinement
13%
Understanding Why
13%
Design Properties
13%
Large Volume
13%
Estimation Algorithms
13%
Monitoring Service
11%
Location-based Queries
11%
Distance-based
11%
Issuer
11%
Location Update
11%
User Location
11%
Privacy Guarantees
10%
Integer Programming
10%
Threshold Mechanism
10%
Marginal Table
10%
Constrained Concave-convex Procedure
10%
Individual Privacy
10%
Junction Tree Algorithm
10%
Minimizing Errors
10%
Social Good
10%
Location Factors
10%
Ubiquitous Internet
10%
Geo-social Data
10%
Social Query
10%
Data Sharing
10%
Accuracy Improvement
10%
Distribution-based
10%
Internet of Healthcare Things (IoHT)
10%
Real-life Dataset
10%
Mobile Devices
10%
Social Networks
10%
Sampling Methods
10%
Service Region
10%
Computing Technology
10%
Social Factors
10%
Index Structure
10%
Data Mining Tasks
10%
Personal Information
10%
Mobile Platform
10%
Online Social Networks
10%
Location-aware
10%
Differential Privacy
10%
Social Computing
10%
Approximation Algorithms
10%
Novel Solutions
10%
User Groups
10%
Internet Access
10%
Rapid Development
10%
NP-complete
10%
Social Data
10%
Search Speed
6%
Social Safety
6%
Social Discomfort
6%
Incremental Strategy
6%
Safety Concerns
6%
Social-spatial
6%
Environmental Benefits
6%
Smartphone
6%
Deep Penetration
6%
Popular
6%
Metropolitan Cities
6%
Societal Benefits
6%
Air Pollution
6%
Social Connection
6%
Promising Solutions
6%
Traffic Congestion
6%
Stranger
6%
Spatial Proximity
6%
Average Rating
5%
Specialty Clinic
5%
3G Mobile
5%
Security Algorithms
5%
Location Privacy Protection
5%
Mobile Market
5%
Smartphone Penetration
5%
Basic Services
5%
Dynamic Grid
5%
Monitoring Method
5%
Mobile-based
5%
Quality of Service
5%
Information Sharing
5%
Evaluation Strategy
5%
Location Area
5%
Existing System
5%
Penetration Rate
5%
Privacy Techniques
5%
Social Activity
5%
Collaborative Information
5%
Query Result
5%
Social Networking
5%
Region-based
5%
Grid Overlay
5%
Proximity Monitoring
5%
Privacy-preserving Query
5%
Adversary
5%
Collaborative Working
5%
Location Cloaking
5%
Smartphone Technology
5%
Computer Science
Query Processing
100%
Experimental Result
80%
Efficient Algorithm
80%
Social Network
80%
Homomorphic Encryption
40%
Social Connection
40%
Data Privacy
40%
Input/Output
40%
Spatial Proximity
40%
Estimation Algorithm
40%
Ranking Function
40%
Mobile Platform
40%
Privacy Preserving
40%
Computing Technology
40%
Speed-up
40%
Location Data
40%
Index Structure
40%
Mobile Device
40%
Personal Information
40%
High Dimensional Data
40%
Online Social Network
40%
Rapid Development
40%
Location Privacy
40%
Social Computing
40%
Internet Access
40%
Air Pollution
40%
Location Information
33%
Dependency Graph
26%
Service Provider
26%
Joint Distribution
26%
Indexing Technique
20%
Sensitive Attribute
20%
Research Problem
20%
Secure Protocol
20%
Communication Overhead
20%
secure multiparty computation
20%
computing paradigm
20%
Large Data Set
20%
Security Analysis
20%
Privacy Requirement
20%
Integer Programming
13%
Individual Privacy
13%
Tree Algorithm
13%
Monitoring Service
13%
Data Sharing
13%
Data Mining Task
13%
Social Networking (Online)
13%
Differential Privacy
13%
Approximation Algorithm
13%
Secure Algorithm
6%
Privacy Protection
6%
Privacy Technique
6%
Application Area
6%