Analyzing Spatiotemporal Anomalies through Interactive Visualization
As we move into the big data era, data grows not just in size, but also in complexity, containing a rich set of attributes, including location and time information, such as data from mobile devices (e.g., smart phones), natural disasters (e.g., earthquake and hurricane), epidemic spread, etc. We are...
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Published in | Informatics (Basel) Vol. 1; no. 1; pp. 100 - 125 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
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Basel
MDPI AG
01.06.2014
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Abstract | As we move into the big data era, data grows not just in size, but also in complexity, containing a rich set of attributes, including location and time information, such as data from mobile devices (e.g., smart phones), natural disasters (e.g., earthquake and hurricane), epidemic spread, etc. We are motivated by the rising challenge and build a visualization tool for exploring generic spatiotemporal data, i.e., records containing time location information and numeric attribute values. Since the values often evolve over time and across geographic regions, we are particularly interested in detecting and analyzing the anomalous changes over time/space. Our analytic tool is based on geographic information system and is combined with spatiotemporal data mining algorithms, as well as various data visualization techniques, such as anomaly grids and anomaly bars superimposed on the map. We study how effective the tool may guide users to find potential anomalies through demonstrating and evaluating over publicly available spatiotemporal datasets. The tool for spatiotemporal anomaly analysis and visualization is useful in many domains, such as security investigation and monitoring, situation awareness, etc. |
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AbstractList | As we move into the big data era, data grows not just in size, but also in complexity, containing a rich set of attributes, including location and time information, such as data from mobile devices (e.g., smart phones), natural disasters (e.g., earthquake and hurricane), epidemic spread, etc. We are motivated by the rising challenge and build a visualization tool for exploring generic spatiotemporal data, i.e., records containing time location information and numeric attribute values. Since the values often evolve over time and across geographic regions, we are particularly interested in detecting and analyzing the anomalous changes over time/space. Our analytic tool is based on geographic information system and is combined with spatiotemporal data mining algorithms, as well as various data visualization techniques, such as anomaly grids and anomaly bars superimposed on the map. We study how effective the tool may guide users to find potential anomalies through demonstrating and evaluating over publicly available spatiotemporal datasets. The tool for spatiotemporal anomaly analysis and visualization is useful in many domains, such as security investigation and monitoring, situation awareness, etc. |
Author | Liao, Qi Shi, Lei Dong, Weishan Zhang, Tao |
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Cites_doi | 10.1109/TVCG.2010.197 10.5121/ijcses.2012.3104 10.1016/S1045-926X(03)00046-6 10.1109/TVCG.2012.265 10.1109/TVCG.2012.291 10.1145/846170.846173 10.1559/152304001782173952 10.1109/38.946631 10.1145/245882.245901 10.1007/978-3-540-71949-6_6 10.1080/03610929708831995 10.1109/2945.981847 10.1016/j.jvlc.2007.02.006 10.2105/AJPH.88.9.1377 10.1109/TVCG.2008.194 |
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SubjectTerms | Algorithms Anomalies Data visualization Geographic information systems Seismic phenomena Spreads Visualization visualization, spatiotemporal data analysis, anomaly detection |
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