Figure 2: Semantic Technology for Big Data analysis for Emergency Management System Figure 3: Safety Check OWL Visualization 4.4 Sample Queries We present some of the important SPARQL queries used in our application: Figure 4: Map earthquakes with impacted region p). This mobile app has additional features. As shown in Figure 4, 6, 7 this application can list and even show earthquake alerts with its’ impacted region on the world map. It also has a background service running to pull new alerts from our application and provides notification to the users. It also shows all people that may have been impacted by an earthquake on the map. We are currently working on adding similar functionality for weather alerts in this mobile application. Figure 5: Screenshot of Weather Alerts webpage whereas this Semantic-based application provides early- warning information and other important safety instructions that can save lives of people. This app is on the lookout for people who may be impacted in order to provide appropriate assistance.
