Witschel, Hans FriedrichRiesen, KasparGrether, LorisJose, Joemon M.Yilmaz, EmineMagalhães, JoãoCastells, PabloFerro, NicolaSilva, Mário J.Martins, Flávio2024-04-182024-04-182020978-3-030-45438-8978-3-030-45439-5https://doi.org/10.1007/978-3-030-45439-5_50https://irf.fhnw.ch/handle/11654/42675Exploring a knowledge base is often an iterative process: initially vague information needs are refined by interaction. We propose a novel approach for such interaction that supports sequential question answering (SQA) on knowledge graphs. As opposed to previous work, we focus on exploratory settings, which we support with a visual representation of graph structures, helping users to better understand relationships. In addition, our approach keeps track of context – an important challenge in SQA – by allowing users to make their focus explicit via subgraph selection. Our results show that the interaction principle is either understood immediately or picked up very quickly – and that the possibility of exploring the information space iteratively is appreciated.en330 - WirtschaftKvGR: A graph-based interface for explorative sequential question answering on heterogeneous information sources04B - Beitrag Konferenzschrift760-773