— In location-based, mobile continual query (CQ) systems, two key measures of quality of service (QoS) are: freshness and accuracy. To achieve freshness, the CQ server must perfo...
While You're Away (WYA) is a distributed system that aggregates the computational power of individual computer systems. WYA introduces the notion of Roaming Computations - Ja...
This paper describes our experience when applying formal methods in the design of the tourist information system TIP, which presents context-sensitive information to mobile users ...
Conventional wide-area video surveillance systems use a network of fixed cameras positioned close to locations of interest. We describe an alternative and flexible approach to w...
Environmental information systems (EIS) have been in professional use for quite a long time. Applications of this domain often include features of quite common location based servi...
Ari Keronen, Mauri Myllyaho, Pasi Alatalo, Markku ...