WiFi fingerprinting has been a popular approach for indoor positioning in the past decade. However, most existing fingerprint-based systems were designed as an on demand service to guide the user to his wanted destination. This article introduces a novel feature that allows the positioning system to predict in advance which walking route the user may use, and the potential destination. To achie...

With the rapid development of communication and information technology, our demand of wireless localization is increasing day by day. This paper gives an overview of the existing wireless indoor positioning techniques. Several typical indoor positioning systems and the techniques they have used are described and analyzed. The possible trend of positioning system research are presented.

This paper describes the development and implementation of a dynamic positioning system for Remotely Operated underwater Vehicles (ROVs) which is based on a mechanical Passive Arm (PA) for position measurement. The system, named DPSROV, is suited for tasks which require precise positioning within a limited range around a working site. The DPSROV was conng-ured aiming at easy installation in mos...

It is possible to define conversation policies, such as communication or dialogue protocols, that are based strictly on what messages and, respectively, what performatives may follow each other. While such an approach has many practical applications, such protocols support only "local coherence" in a conversation. In a mixed-initiative dialogue between two agents cooperating on some joint task,...