Analyzing Spatiotemporal Anomalies through Interactive Visualization
Journal Title: Informatics - Year 2014, Vol 1, Issue 1
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. View Full-Text
Authors and Affiliations
Tao Zhang, Qi Liao, Lei Shi and Weishan Dong
Keywords
Related Articles
- EP ID EP44032
- DOI https://doi.org/10.3390/informatics1010100
- Views 302
- Downloads 0
Modelling Digital Knowledge Transfer: Nurse Supervisors Transforming Learning at Point of Care to Advance Nursing Practice
Limited adoption of mobile technology for informal learning and continuing professional development within Australian healthcare environments has been explained primarily as an issue of insufficient digital and ehealth...
Thinking Informatically
On being promoted to a personal chair in 1993 I chose the title of Professor of Informatics, specifically acknowledging Donna Haraway’s definition of the term as the “technologies of information [and communication] as...
Visual Analysis of Relationships between Heterogeneous Networks and Texts: An Application on the IEEE VIS Publication Dataset
The visual exploration of large and complex network structures remains a challenge for many application fields. Moreover, a growing number of real-world networks is multivariate and often interconnected with each other...
Developing and Improving Student Non-Technical Skills in IT Education: A Literature Review and Model
The purpose of this paper is to identify portions of the literature in the areas of Information Technology (IT) management, skills development, and curriculum development that support the design of a holistic conceptua...
Supporting Sensemaking of Complex Objects with Visualizations: Visibility and Complementarity of Interactions
Making sense of complex objects is difficult, and typically requires the use of external representations to support cognitive demands while reasoning about the objects. Visualizations are one type of external representat...