Journal article

Spatial Indexing for Data Searching in Mobile Sensing Environments

Yuchao Zhou, Suparna De, Wei Wang, Klaus Moessner, Marimuthu S Palaniswami

Sensors | MDPI | Published : 2017


Data searching and retrieval is one of the fundamental functionalities in many Web of Things applications, which need to collect, process and analyze huge amounts of sensor stream data. The problem in fact has been well studied for data generated by sensors that are installed at fixed locations; however, challenges emerge along with the popularity of opportunistic sensing applications in which mobile sensors keep reporting observation and measurement data at variable intervals and changing geographical locations. To address these challenges, we develop the Geohash-Grid Tree, a spatial indexing technique specially designed for searching data integrated from heterogeneous sources in a mobile s..

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Awarded by European Horizon 2020 programme

Funding Acknowledgements

This paper describes work undertaken in the context of the TagItSmart! project ( TagItSmart! is a collaborative project supported by the European Horizon 2020 programme, contract number: 688061.