Using Topological Analysis to Support Event-Guided Exploration in Urban Data Using Topological Analysis to Support Event-Guided Exploration in Urban Data. H. Doraiswamy, N. Ferreira, T. Damoulas, J. Freire, and C. Silva. IEEE Transactions on Visualization and Computer Graphics (TVCG), 20(12): 2634-2643, 2014. By -- | July 15, 2015 | Juliana Freire Articles, Papers and Publications | ← Bridging Vocabularies to Link Tweets and News Visual Exploration of Big Spatio-Temporal Urban Data: A Study of New York City Taxi Trips →