Biography

Sam Stehle is a Postdoctoral Researcher working on the Building City Dashboards project. He received his PhD from the Pennsylvania State University in August 2017 in Geography, where his dissertation used topic modeling and geographic information retrieval to map geographic networks in digital media during the Catalonian independence movement of 2014. For his Masters work at Penn State, Sam built a pattern matching procedure based on sequence alignment which matched known spatio-temporal patterns in big event data. Sam has taught courses in GIS, urban geography, and energy land management and is a former fellow in Penn State's National Science Foundation-funded interdisciplinary IGERT program on Big Data and Social Science.

In NCG, Sam is working to collect, archive, analyse, and visualize real-time city data. City dashboards provide both a history and a current view of the urban social environment, so Sam is seeking effective communication of this temporality and how to provide new ways of interacting with temporal information to provide a useful window into city function and navigation for a variety of users. 

Research Interests

Geographic Information Science
Machine Learning
Application Development
Spatio-Temporal Data Mining
Geopolitics

Peer Reviewed Journals

  Year Publication
2017 'Sentiment analysis during Hurricane Sandy in emergency response'
Venkata K. Neppalli and Cornelia Caragea and Anna Squicciarini and Andrea Tapia and Sam Stehle (2017) 'Sentiment analysis during Hurricane Sandy in emergency response'. International Journal of Disaster Risk Reduction, 21 :213-222 [DOI] [Details]
2015 'Analyzing Spatio-Temporal Patterns and Their Evolution via Sequence Alignment'
Samuel Stehle and Donna J. Peuquet (2015) 'Analyzing Spatio-Temporal Patterns and Their Evolution via Sequence Alignment'. Spatial Cognition \& Computation, 15 (2):68-85 [DOI] [Details]
2015 'A method for discovery and analysis of temporal patterns in complex event data'
Donna J. Peuquet and Anthony C. Robinson and Samuel Stehle and Franklin A. Hardisty and Wei Luo (2015) 'A method for discovery and analysis of temporal patterns in complex event data'. International Journal of Geographical Information Science, 29 (9):1588-1611 [DOI] [Details]

Conference Publications

  Year Publication
2104 Mapping Moods: Geo-Mapped Sentiment Analysis During Hurricane Sandy
Cornelia Caragea, Anna Squicciarini, Sam Stehle, Kishore Neppalli, Andrea Tapia (2104) Mapping Moods: Geo-Mapped Sentiment Analysis During Hurricane Sandy . In: S.R. Hiltz, M.S. Pfaff, L. Plotnick, A.C. Robinson eds. 11th International Conference on Information Systems for Crisis Response and Management [Details]
213 Improving Forecasts of International Events of Interest
Arva, B., J. Beieler, B. Fisher, G. Lara, P. A. Schrodt, W. Song, M. Sowell & S. Stehle. (213) Improving Forecasts of International Events of Interest 13 Annual European Political Science Association General Conference [Details]

Professional Associations

  Association Function From / To
Society for American Baseball Research member /
American Association of Geographers Member /

Education

  Year Institution Qualification Subject
2013 The Pennsylvania State University Master of Science Geography
2017 The Pennsylvania State University PhD Geography
2010 University of Utah Bachelor of Science Geography + Computer Science

Teaching Interests

Geographic Information Science
Data Mining
Urban Geography
Introduction to Programming