About Me

My name is Jiue-An (Jay) Yang. I am a postdoctoral research fellow at the Center for Wireless and Population Health Systems (CWPHS) and Qualcomm Institute (Qi) of the California Institute for Telecommunications and Information Technology (Calit2), University of California - San Diego.

My current works focus on the analysis of geographic information in personal and public health informatics, the implementation of machine learning algorithms in behavioral health studies, and the development of information visualization applications for Big data. I work closely with Dr. Kevin Patrick, Dr. Jacqueline Kerr, and Dr. Marta Jankowska at the current position.

Before joining Qi, I worked with Dr. Ming-Hsiang Tsou in the Center of Human Dynamics in the Mobile Age (HDMA) at SDSU, and Dr. Krzysztof Janowicz at the Space and Time for Knowledge Organization (STKO) Laboratory at UCSB, where I focused on the analysis of geographic information in social media and information diffusion in social networks.


Ph.D.   (2017)

- Department of Geography, San Diego State University / U.C. Santa Babara, USA
- Focus: GIScience, Information Diffusion, Social Media, Social Network
- Advisor: Dr. Ming-Hsiang Tsou
- Committee: Dr. Piotr Jankowski | Dr. Krzysztof Janowicz | Dr. Keith Clarke

M.S.   (2011)

- Department of Geography, University at Buffalo – State University of New York, USA
- Focus: GIS, Environmental Modeling
- Advisor: Dr. Chris S. Renschler
- Committee: Dr. Le Wang

B.S.   (2007)

- Department of Geography, National Taiwan University, Taiwan
- Focus: GIS, Land User/Land Cover Change
- Advisor: Dr. Kang-tsung Chang

Research Interests

+ information diffusion in social network, social media, and cyberspace
+ geographic information in online social media and social network
+ geospatial perspectives of personal and public health
+ GPS trajectory and exposure to physical environment
+ environmental exposure and health outcome
+ spatial database and spatial data mining
+ spatio-temporal analysis of big geo-data
+ community similarity in social network
+ geospatial web and mobile application
+ geospatial artificial intelligence
+ spatial data infrastructure
+ GIScience

Selected Publications

articles in refereed journals

  1. Bloss, C.S., Stoler, J., Schairer, C.E., Rosenthal, S.B., Cheung, C., Rus, H.M., Block, J.L., Yang, J.-A., Morton, D., Bixenman, H., and Wellis, D., (2018). Characteristics Of Likely Precision Medicine Initiative Participants Drawn From A Large Blood Donor Population. Health Affairs, 37 (5), 786–792. [DOI:10.1377/hlthaff.2017.1591].

  2. Baer, R.J., Lessard, L.N., Jankowska, M., Anderson, J.G., Block, J., Chambers, C.D., Fuchs, J., Kuppermann, M., McLemore, M.R., Newel, G., Oltman, S.P., Rogers, E.E., Ryckman, K.K., Steurer, M.A., Yang, J.-A., Franck, L.S., Rand. L., Jelliffe-Pawlowski, L.L. (2018) Comparison of risk and protective factors for preterm birth in rural, suburban, and urban Fresno County, California. Journal of Epidemiological Research, 4(2):50-58. [DOI:10.5430/jer.v4n2p50].

  3. Gao, S., Janowicz. K., Montello, D. R., Hu, Y., Yang, J. A., McKenzie, G., Ju, Y., Gong, L., Adams, B., Yan, B. (2017) A Data-Synthesis-Driven Method for Detecting and Extracting Vague Cognitive Regions. International Journal of Geographical Information Science, [DOI:10.1080/13658816.2016.1273357].

  4. Yang, J., Tsou, M., Jung, C., Allen, C., Spitzberg, B.H., Gawron, J.M., and Han, S. (2016) "Social media analytics and research testbed (SMART): Exploring spatiotemporal patterns of human dynamics with geo-targeted social media messages." Big Data & Society (BD&S), 3(1): [DOI:10.1177/2053951716652914].

  5. McKenzie, G., Janowicz, K., Gao, S.,Yang, J., and Hu, Y. (2015) POI Pulse: A Multi-Granular, Semantic Signatures-Based Information Observatory for the Interactive Visualization of Big Geosocial Data. Cartographica: The International Journal for Geographic Information and Geovisualization, 50(2) 71-85. The University of Toronto Press [DOI:10.3138/cart.50.2.2662]

  6. Tsou, M-H., Kim, I-H, Wandersee, S., Lusher, D., An, L., Spitzberg, B., Gupta, D., Gawron, J. M., Smith, J., Yang, J-A, Han, S.Y. (2014). Mapping ideas from cyberspace to realspace: visualizing the spatial context of keywords from web page search results. International Journal of Digital Earth, 7(4), 316-335.

  7. Aslam, A.A., Tsou, M.H., Spitzberg, B.H., An, L., Gawron, J.M., Gupta, D.K., Peddecord, K.M., Nagel, A.C., Allen, C., Yang, J.A., Lindsay S (2014) The Reliability of Tweets as a Supplementary Method of Seasonal Influenza Surveillance. J Med Internet Res, 16(11):e250. [DOI:10.2196/jmir.3532]

  8. Tsou, M. H., Yang, J. A., Lusher, D., Han, S., Spitzberg, B., Gawron, J. M., ... & An, L. (2013). Mapping social activities and concepts with social media (Twitter) and web search engines (Yahoo and Bing): a case study in 2012 US Presidential Election. Cartography and Geographic Information Science, 40(4), 337-348.

  9. Nagel, A.C., Tsou, M.H., Spitzberg, B.H., Li, A., Gawron, J.M., Gupta, D.K., Yang, J.A., Han, S., Peddecord, K.M., Lindsay, S., Sawyer, M.H., (2013) The Complex Relationship of Realspace Events and Messages in Cyberspace: Case Study of Influenza and Pertussis Using Tweets. J Med Internet Res, 15(10):e237. [DOI:10.2196/jmir.2705]

peer-reviewed conference/workshop proceedings

  1. Tsou, M. H., Jung, C. T., Allen, C., Yang, J. A., Han, S. Y., Spitzberg, B. H., and Dozier, J. (2017). Building a Real-Time Geo-Targeted Event Observation (Geo) Viewer for Disaster Management and Situation Awareness. In International Cartographic Conference (pp. 85-98). Springer, Cham. [DOI:10.1007/978-3-319-57336-6_7].

  2. Tsou, M.-H., Jung, C.-T., Allen, C., Yang, J.-A., Gawron, J.-M., Spitzberg, B.H., and Han, S. (2015) Social Media Analytics and Research Test-bed (SMART Dashboard). In: Proceedings of the 2015 International Conference on Social Media & Society. New York, NY, USA: ACM, 2:1–2:7.

  3. Song Gao, Jiue-An Yang, Bo Yan, Yingjie Hu, Krzysztof Janowicz and Grant McKenzie (2014) Detecting Origin-Destination Mobility Flows From Geotagged Tweets in Greater Los Angeles Area. GIScience 2014 Conference. Extended Refereed Abstract accepted.

  4. Tsou, MH, Woodruff, SI, Spitzberg, B, Reed, M, Moran, M., Gawron, M, Allen, C., Yang, J. (2014). Using GIS and Geo-targeted Social Media (Twitter) to Track Illicit Drug Use Trends in Space and Over Time. GIScience 2014 Conference. Extended Refereed Abstract accepted.

  5. S. Gao, J-A Yang, K. Janowicz, Y. Hu, B. Yan (2014) TrajAnalyst: Matching Data to Trajectory Analysis Modules via a Conceptual Framework. Analysis of Movement Data. GIScience 2014 Workshop. Sep 23, Vienna, Austria.

  6. Yingjie Hu, Grant McKenzie, Jiue-An Yang, Song Gao, Amin Abdalla, Krzysztof Janowicz. A (2014) Linked-Data-Driven Web Portal for Learning Analytics: Data Enrichment, Interactive Visualization, and Knowledge Discovery. In Proceedings of the Workshops at the 2014 International Conference on Learning Analytics and Knowledge, Mar.24-28, 2014, Indianapolis, IN, USA.

  7. Tsou, M. H., & Yang, J. A. (2012). Spatial analysis of social media content (tweets) during the 2012 US Republican Presidential Primaries. GIScience 2012. Extended Refereed Abstract accepted.

  8. Tsou, M-H., Lusher, D., Yang, J-A., Gupta, D., Gawron, J. M., Spitzberg, B. H., An, L., & Wandersee, S. (2012, September). Mapping social activities and concepts with social media (Twitter) and web search engines (Yahoo and Bing): A case study in 2012 U.S. presidential election. In Sarah Battersby edited, AutoCarto International Symposium on Automated Cartography Proceedings (Columbus, OH): Mt. Pleasant, South Carolina, Cartography and Geographic Information Society

book chapter

  1. Yang, J.-A., Tsou, M.-H., Spitzberg, B., An, L., Gawron, J.M., and Gupta, D., (2019). Mapping Spatial Information Landscape in Cyberspace with Social Media. In: S. Wang and M.F. Goodchild, eds. CyberGIS for Geospatial Discovery and Innovation. Dordrecht: Springer Netherlands, 71–86. [DOI:10.1007/978-94-024-1531-5_5].

  2. Nara, A., Tsou, M.-H., Yang, J.-A., and Huang, C.-C., (2018). The Opportunities and Challenges with Social Media and Big Data for Research in Human Dynamics. In: S.-L. Shaw and D. Sui, eds. Human Dynamics Research in Smart and Connected Communities. Cham: Springer International Publishing, 223–234. [DOI:10.1007/978-3-319-73247-3_12].

professional workshop and seminar presentations

13 |“Sensor Based Contextual Model for Predicting Adverse Eating Events with Machine Learning Algorithm: Lesson Learned and Next Steps” – 2017 MD2K Annual Meeting: Advancing biomedical discovery and improving health through mobile sensor Big Data, Memphis, TN, USA

12 |“Data E-platform Leveraged for Population Health Improvement (DELPHI)” – 2017 Workshop on Computational and Geospatial Approaches to Population Neuroscience, Fudan University, Shanghai, China

11 |“Formalizing and Visualizing Place in GIS with Social Media Data” – 2016 AAG Annual Meeting, San Francisco, CA, USA

10 |“Spatial Analysis of Community Similarity in the Twitter Social Network” – 2015 AAG Annual Meeting, Chicago, IL, USA

9 | “Predictions in Battleground: A Case Study of Swing States in 2012 US Presidential Election with Twitter” – 2014 AAG Annual Meeting, Tampa, FL, USA

8 | “Knowledge Discovery in Tweets: Space, Time, and Message” – 2013 AAG Annual Meeting, Los Angeles, CA, USA

7 | “Responding to and Planning for Extreme Events: Connecting Environmental Modeling, Community and Social Media” – 2012 AAG Annual Meeting, New York City, NY, USA

6 | “Mapping Cyberspace as Reflection or Distortion of Realspace – the VISION Approach” – Invited Speaker at #Influence12 – 2012 Symposium & Workshop on Measuring Influence on Social Media, Halifax, Canada

5 | “Responding to and Planning for Extreme Events: Integrating Weather Generator, LiDAR Data, Flood Modeling and GIS” – 2011 AAG Annual Meeting, Seattle, WA

4 | “Responding to and Planning for Extreme Events: Integrating Weather Generator, LiDAR Data, Flood Modeling and GIS” – 2011 Graduate Student Research Symposia, University at Buffalo, NY

3 | “Flood Modeling with HEC-RAS/HEC-GeoRAS” – 2010 Clear Creek Watershed Workshop II, University at Buffalo, NY

2 | “HEC-RAS/HEC-GeoRAS Modeling in Extreme Events” – 2010 Clear Creek Watershed Workshop I, University at Buffalo, NY

1 | “Integrated Watershed Management: working with NRCS within the Cattaraugus Creek Watershed” – 2009 Geography Awareness Week: Integrated Environment Management Seminar, University at Buffalo, NY


GEOG 381 : Computerized Map Design (Instructor) (Fall 2014)

GEOG 381 : Computerized Map Design (Teaching Assistant) (Fall 2011, Fall 2015)

GEOG 104 : Geographic Information Science and Spatial Reasoning (Instructor) (Spring 2016)

GEOG 104 : Geographic Information Science and Spatial Reasoning (Teaching Assistant) (Spring 2012)