Humboldt-Universität zu Berlin | Wirtschaftswissenschaftliche Fakultät | High Dimensional Nonstationary Time Series | About us | News Feed | News 2017 | Conference: Charles University Prague Conference: Charles University Prague 16.06.2017. Prof. Wolfgang Härdle, the IRTG coordinator and spokesperson, presented his talk on "Textual Sentiment and Sector-specific Reactions" at Charles University Prague. 26.06.2017