Scale-dependency in IP-based positioning of network clusters
MetadataShow full item record
Although research in location-based services (LBS) is advancing well, the problem of obtaining a position for the user is still a major obstacle. Commonly available methods suffer from problems of availability, financial cost, and lack of precision or accuracy. The concept that IP-addresses tend to be spatially clustered which makes them attractive as a means for positioning. IP-based positioning would be applicable to any immobile device or interface, such as a computer or a wireless access point. Although it is believed that LBS equates to mobile computing, in reality the audience among static users in homes and offices may in fact be greater at this point in time. VRILS (varying resolution IP locating system) uses the relationship between network clusters and spatial clusters to provide positions for IP-addresses. It uses different levels of spatial precision to cope with conflicting locations within subnets, which enhances the chance of being able to provide a location. VRILS has been tested on the campus of Curtin University, where the positions of 461 IP-addresses were used in a network of over 20,000 computers. The outcome showed perfect results at the broadest spatial resolution of ‘campus’, and a reasonable result at the resolution of ‘building’. Randomness of IP-addresses across certain buildings was shown to strongly affect the accuracy. In general, it could be seen that with a relatively small amount of data, accurate positions could be obtained, but a lack of spatial clustering would decrease the efficiency to that of simple lookups.
Showing items related by title, author, creator and subject.
Do plant functional traits determine spatial pattern?: A test on species-rich shrublands, Western AustraliaPerry, G.; Enright, N.; Miller, B.; Lamont, Byron (2013)Questions: A species' spatial pattern is the outcome of a series of filters: demographic, disturbance, environmental and functional, all varying over space and time. To evaluate the importance of function as a filter we ...
Veenendaal, Bert; Delfos, Jacob; Tan, Tele (2011)The geospatial location of stationary and mobile objects and phenomena are increasingly important to geospatial applications. The availability and ease of access to geospatial information and digital earth technologies ...
Dewan, Ashraf; Abdullah, A.; Shogib, M.; Karim, R.; Rahman, M. (2017)© 2017 The Author(s). Background: Visceral leishmaniasis is a considerable public health burden on the Indian subcontinent. The disease is highly endemic in the north-central part of Bangladesh, affecting the poorest and ...