Germany's nationwide travel experiment in 2022: public transport for 9 Euro per month -- First findings of an empirical study

no code implementations • 14 Jun 2023 • Allister Loder, Fabienne Cantner, Lennart Adenaw, Nico Nachtigall, David Ziegler, Felix Gotzler, Markus B. Siewert, Stefan Wurster, Sebastian Goerg, Markus Lienkamp, Klaus Bogenberger

We observe this natural experiment with a three-wave survey and a smartphone-based travel diary with passive tracking on an initial sample of 2, 261 participants with a focus on the Munich metropolitan region.

A nation-wide experiment: fuel tax cuts and almost free public transport for three months in Germany -- Report 5 Insights into four months of mobility tracking

no code implementations • 18 Nov 2022 • Lennart Adenaw, David Ziegler, Nico Nachtigall, Felix Gotzler, Allister Loder, Markus B. Siewert, Markus Lienkamp, Klaus Bogenberger

We observe this natural experiment with a three-wave survey and an app-based travel diary on a sample of hundreds of participants as well as an analysis of traffic counts.

Efficiency-aware Answering of Compositional Questions using Answer Type Prediction

no code implementations • IJCNLP 2017 • David Ziegler, Abdalghani Abujabal, Rishiraj Saha Roy, Gerhard Weikum

This paper investigates the problem of answering compositional factoid questions over knowledge bases (KB) under efficiency constraints.

Question Answering Type prediction +1