Konversatorium on Friday, November 22, 2019 - 10:30

Date: 
Friday, November 22, 2019 - 10:30
Location: 
Seminar room E186 (Favoritenstraße 9, Stiege 1, 5th floor)

Semi-Automatic Creation of Concept Maps (DAAV)

Speaker: 
Christoph Presch (Inst. 193-02 CG)
Duration: 
10 + 10
Responsible: 
Manuela Waldner

Concept Maps are a visual tool to summarize information and represent knowledge on a certain topic or focus question. They can facilitate the process of learning, understanding and memorization, and are often used in areas such as education, visual analytics and knowledge management. This thesis explores a semi-automatic approach to the creation of Concept Maps. With the help of Natural Language Processing and a web-based user interface, the process of Concept Map Mining, from unstructured textual data, should be made more efficient than a fully manual approach and yield more accurate results than a fully automatic approach.

Visual Analytics of Weather Forecasts

Speaker: 
Dr. Alexandra Diehl (Uni Zürich, Visualization and MultiMedia Lab)
Duration: 
45 + 15
Responsible: 
Eduard Gröller

During my talk, I will introduce the research work I have done in the area of geospatial visual analytics applied to weather forecasting. I will present the outcome of a long-term collaboration with meteorologists in the development of geo-visual analytics methods for weather forecasting, including short-term weather forecasting, probabilistic forecasting, and currently, visual storm analysis. I will also present my recent efforts on the analysis of citizen data, and discuss the challenges and opportunities of using this kind of information to improve the nowcasting (very short-term weather forecasting) of weather hazards.

Bio
Alexandra Diehl is a postdoctoral researcher in the Multimedia and Visualization group at the Department of Informatics of the University of Zurich(UZH), Switzerland. She received her Dip. Eng. in Computer Engineering (2005) and her Ph.D. (2016) in Computer Science at the University of Buenos Aires, Argentina. Before her current position, she was a postdoctoral researcher at the Data Visualization and Analysis Group (DBVIS) at the University of Konstanz, Germany.
Her research interests include geospatial visual analytics, visual design, foundations of visualization, citizen science, and environmental sciences. During her Ph.D., she focused on the visual analysis of weather forecasting and predictive analytics methods. In her previous position as a postdoc in Konstanz, she faced topics related to social media analytics, Volunteer Geographic Information (VGI), and human geography. In particular, she studied the use of visual analytics to analyze bias and uncertainty inherent to VGI. Alexandra is also a lecturer, with experience teaching information visualization, visual analytics, and geographic information systems.