@conference {Wang2014a, title = {Event-Based Text Visual Analytics}, booktitle = {VAST Challenge 2014}, year = {2014}, address = {Paris, France}, abstract = {We present an event-based approach for solving a directed sensemaking task in which we combine powerful information foraging tools with intuitive synthesis spaces to solve the VAST 2014 Mini-Challenge 1 (MC1). A combination of student-created and commericially available software are used to solve various aspects of the scenario. In addition to applying entitiy extraction and topic modelling, we enable the user to explore a large dataset using multi-model semantic interaction, which infers analytical reasoning from user actions to augment the data spatialization and determine what information should be presented and suggested to the user. Additionally, we visualize extracted topics using Tableau to construct a timeline of events surrounding the questions posed by the challen}, keywords = {event extraction, Semantic interaction, sensemaking, topic modelling}, author = {Wang, Ji and Lauren Bradel and North, Chris} } @conference {Wang2014b, title = {Making Sense of Daily Life Data: From Commonalities To Anomalies}, booktitle = {VAST Challenge 2014}, year = {2014}, abstract = {We report the approach and results to solve the VAST 2014 Mini-Challenge 2 (MC2). Based on the commercial interactive visualization software Tableau, we follow the notional model of sensemaking loop for analysis of the massive multi-dimensional, multi-source and time-varying data sets in MC2. Our findings show that we can effectively identify the commonalities and anomalies to understand the GAStech employees{\textquoteright} daily life.}, keywords = {Geo-visualization, human information interaction, Intelligence Analysis, sense-makingloop, visualanalysis}, author = {Wang, Ji and Peng Mi and North, Chris} } @conference {Wang:2014:RSW:2619648.2619674, title = {ReCloud: Semantics-based Word Cloud Visualization of User Reviews}, booktitle = {Proceedings of the 2014 Graphics Interface Conference}, series = {GI {\textquoteright}14}, year = {2014}, pages = {151{\textendash}158}, publisher = {Canadian Information Processing Society}, organization = {Canadian Information Processing Society}, address = {Toronto, Ont., Canada, Canada}, isbn = {978-1-4822-6003-8}, url = {http://dl.acm.org/citation.cfm?id=2619648.2619674}, author = {Wang, Ji and Zhao, Jian and Guo, Sheng and North, Chris and Ramakrishnan, Naren} } @conference {Piccardi:2014:TCC:2611247.2557202, title = {Towards Crowd-based Customer Service: A Mixed-initiative Tool for Managing Q\&A Sites}, booktitle = {Proceedings of the 32Nd Annual ACM Conference on Human Factors in Computing Systems}, series = {CHI {\textquoteright}14}, year = {2014}, pages = {2725{\textendash}2734}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {a, crowdsourcing, customer care, mixed initiative, q\&\#38}, isbn = {978-1-4503-2473-1}, doi = {10.1145/2556288.2557202}, url = {http://doi.acm.org/10.1145/2556288.2557202}, author = {Piccardi, Tiziano and Convertino, Gregorio and Zancanaro, Massimo and Wang, Ji and Archambeau, Cedric} } @conference {Wang:2013:FWC:2468356.2468673, title = {Fisheye Word Cloud for Temporal Sentiment Exploration}, booktitle = {CHI {\textquoteright}13 Extended Abstracts on Human Factors in Computing Systems}, series = {CHI EA {\textquoteright}13}, year = {2013}, pages = {1767{\textendash}1772}, publisher = {ACM}, organization = {ACM}, address = {New York, NY, USA}, keywords = {sentiment analysis, temporal twitter data analysis, user study, word cloud}, isbn = {978-1-4503-1952-2}, doi = {10.1145/2468356.2468673}, url = {http://doi.acm.org/10.1145/2468356.2468673}, author = {Wang, Ji and Dent, Kyle and North, Chris} } @article {Chen201461, title = {An image-space energy-saving visualization scheme for \{OLED\} displays}, journal = {Computers \& Graphics}, volume = {38}, year = {2013}, pages = {61 - 68}, keywords = {Illustrative visualization}, issn = {0097-8493}, doi = {http://dx.doi.org/10.1016/j.cag.2013.10.020}, url = {http://www.sciencedirect.com/science/article/pii/S0097849313001611}, author = {Haidong Chen and Wang, Ji and Weifeng Chen and Huamin Qu and Wei Chen} } @unpublished {Wang2012, title = {{GreenVis : Energy-Saving Color Schemes for Sequential Data Visualization on OLED Displays}}, year = {2012}, pages = {8}, publisher = {Department of Computer Science, Virginia Tech}, address = {Blacskburg, VA}, keywords = {color scheme, energy saving, oled display, optimization}, url = {http://eprints.cs.vt.edu/archive/00001192/}, author = {Wang, Ji and Lin, Xiao and North, Chris} }