
271Geospatial Cyberinfrastructure for Addressing the Big Data Challenges
translation engine in a lightweight and efcient manner, which is mobile friendly.
Ascreenshot of the 2D map-based sensor web browser is shown in Figure 13.4b.
Moreover, in order to address the high-velocity big data issue, the translation
engine utilizes an adaptive feeder that detects the data updating frequency on the
sensor web services and fetches the latest sensor data from the services by adaptively
scheduling the requests (Huang and Liang 2012a). In this case, the cached sensor
data in the translation engine are always updated.
13.4.4 online soCial netWork
GeoCENS ...