Authentication Model for Location based Queries

Developing a ChatBot to Answer Spatial Queries for use in Location-based Services

A Chat Bot is an automated operator that can interact with customers like a human operator, answer their questions, solve problems and get feedback. Real-time responsiveness, the sense of talking to a human user is one of their good features that can be used to deliver location-based services. This paper designed a Chat Bot that can talk and answer users' questions based on their location. Thi...

Location Based Authentication of KNN Queries with Location and Query Privacy

In mobile communication, spatial queries pose a serious threat to user location privacy because the location of a query may reveal sensitive information about the mobile user. In this paper, study approximate k nearest neighbor (kNN) queries where the mobile user queries the location-based service (LBS) provider about approximate k nearest points of interest (POIs) on the basis of his current l...

Location Based Authentication

Fair Anonymous Authentication for Location Based Services

We propose an efficient anonymous authentication scheme that provides untraceability and unlinkability of mobile devices, while accessing Location-Based Services. Following other recent approaches for mobile anonymity, in our scheme the network operator acts as an anonymous credential issuer for its users. However, our scheme supports credential non-transferability, without requiring embedded h...

Probabilistic Approach for Location-Based Authentication

This paper explores location-based product authentication in a situation where only the past locations of products that flow in a supply chain are known. We transform location-based authentication into a pattern recognition problem and investigate different solutions based on machine-learning techniques. The proposed solutions are studied with computer simulations that model the flow of genuine...