Paper Info
Title
Hierarchical Spatio-temporal Visual Analysis of Cluster Evolution in Electrocorticography Data.
Abstract
We present ECoG ClusterFlow, a novel interactive visual analysis tool for the exploration of high-resolution Electrocorticography (ECoG) data. Our system detects and visualizes dynamic high-level structures, such as communities, using the time-varying spatial connectivity network derived from the high-resolution ECoG data. ECoG ClusterFlow provides a multi-scale visualization of the spatio-temporal patterns underlying the time-varying communities using two views: 1) an overview summarizing the evolution of clusters over time and 2) a hierarchical glyph-based technique that uses data aggregation and small multiples techniques to visualize the propagation of clusters in their spatial domain. ECoG ClusterFlow makes it possible 1) to compare the spatio-temporal evolution patterns across various time intervals, 2) to compare the temporal information at varying levels of granularity, and 3) to investigate the evolution of spatial patterns without occluding the spatial context information. We present case studies done in collaboration with neuroscientists on our team for both simulated and real epileptic seizure data aimed at evaluating the effectiveness of our approach.
Year
DOI
Venue
2016
10.1145/2975167.2985688
BCB
Keywords
Field
DocType
Linked Views, Neuroinformatics, Brain Imaging, Electrocorticography, Graph Visualization
Glyph,Data mining,Neuroinformatics,Electrocorticography,Computer science,Interactive visual analysis,Artificial intelligence,Data aggregator,Spatial ecology,Visualization,Bioinformatics,Spatial contextual awareness,Machine learning
Conference
Citations 
PageRank 
References 
1
0.35
7
Authors
6
Name
Order
Citations
PageRank
Sugeerth Murugesan1121.88
Kristofer E Bouchard2188.99
Edward F. Chang3249.78
Max Dougherty441.08
Bernd Hamann52283206.78
Gunther H. Weber635826.23