id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-020891-lt3m8h41	Witschel, Hans Friedrich	KvGR: A Graph-Based Interface for Explorative Sequential Question Answering on Heterogeneous Information Sources	2020-03-17		.txt	text/plain	4926	247	55	It supports both the user and the system in keeping track of the context/current focus of the search via a novel interaction concept that combines pointing/clicking and asking questions in natural language, described in Sect. In order to support them in grasping relationships between new concepts in the -often very complex -answers to their fuzzy questions, IR researchers have proposed result set visualisations that provide a better overview than the typical ranked lists of document references [1, 20] . Our contribution consists mainly in proposing a new interaction paradigm which allows users to ask questions in natural language and to receive answers in the form of visualised subgraphs of a knowledge graph. In this work, we have proposed a novel context-aware sequential question answering system, especially suited for exploratory search, based on graph visualisation for result presentation and iterative refinement of information needs.	./cache/cord-020891-lt3m8h41.txt	./txt/cord-020891-lt3m8h41.txt