Question-Answering for Agricultural Open Data - Transactions on Large-Scale Data-and Knowledge-Centered Systems - page 25

Fig. 4. Mashup architecture
The context registration mechanism is realized by the acquisition of sensor
data. The sensor data are obtained by Android OS 2.2+ functions and jQuery
1.6.4+ running on the smartphone, and the related web services. For example,
date and time information are obtained from the internal clock, and location is
obtained by the Global Positioning System (GPS) function in the Android OS.
But Point of Interest (POI) and weather information (temperature and humid-
ity) are obtained by accessing Yahoo! Open Local Platform (olp.yahoo.co.jp),
and Japan Meteorological Agency (www.jma.go.jp) based on the time and the
GPS information. The POI specifies location names (buildings, companies, sta-
tions) around that location. Furthermore, we determine the location as indoor
or outdoor space by the built-in illuminance sensor.
Our system is available at www.ohsuga.is.uec.ac.jp/˜kawamura/fv.html (in
Japanese) and won a Judges's Special Award in the LOD Challenge Japan 2012.