A survey on question answering systems over linked data and documents

E Dimitrakis, K Sgontzos, Y Tzitzikas - Journal of intelligent information …, 2020 - Springer
Question Answering (QA) systems aim at supplying precise answers to questions, posed by
users in a natural language form. They are used in a wide range of application areas, from …

Modern baselines for SPARQL semantic parsing

D Banerjee, PA Nair, JN Kaur, R Usbeck… - Proceedings of the 45th …, 2022 - dl.acm.org
In this work, we focus on the task of generating SPARQL queries from natural language
questions, which can then be executed on Knowledge Graphs (KGs). We assume that gold …

Why reinvent the wheel: Let's build question answering systems together

K Singh, AS Radhakrishna, A Both… - Proceedings of the …, 2018 - dl.acm.org
Modern question answering (QA) systems need to flexibly integrate a number of
components specialised to fulfil specific tasks in a QA pipeline. Key QA tasks include Named …

Template-based question answering over linked geospatial data

D Punjani, K Singh, A Both, M Koubarakis… - Proceedings of the 12th …, 2018 - dl.acm.org
Large amounts of geospatial data have been made available recently on the linked open
data cloud and on the portals of many national cartographic agencies (eg, OpenStreetMap …

[HTML][HTML] The question answering system GeoQA2 and a new benchmark for its evaluation

SA Kefalidis, D Punjani, E Tsalapati, K Plas… - International Journal of …, 2024 - Elsevier
We present the question answering engine GeoQA2 which is able to answer geospatial
questions over the union of knowledge graphs YAGO2 and YAGO2geo. We also present the …

Benchmarking question answering systems

R Usbeck, M Röder, M Hoffmann, F Conrads… - Semantic …, 2019 - content.iospress.com
The necessity of making the Semantic Web more accessible for lay users, alongside the
uptake of interactive systems and smart assistants for the Web, have spawned a new …

No one is perfect: Analysing the performance of question answering components over the dbpedia knowledge graph

K Singh, I Lytra, AS Radhakrishna, S Shekarpour… - Journal of Web …, 2020 - Elsevier
Question answering (QA) over knowledge graphs has gained significant momentum over
the past five years due to the increasing availability of large knowledge graphs and the …

A Persian medical question answering system

H Veisi, HF Shandi - International Journal on Artificial Intelligence …, 2020 - World Scientific
A question answering system is a type of information retrieval that takes a question from a
user in natural language as the input and returns the best answer to it as the output. In this …

Frankenstein: a platform enabling reuse of question answering components

K Singh, A Both, A Sethupat, S Shekarpour - The Semantic Web: 15th …, 2018 - Springer
Recently remarkable trials of the question answering (QA) community yielded in developing
core components accomplishing QA tasks. However, implementing a QA system still was …

The Qanary Ecosystem: getting new insights by composing Question Answering pipelines

D Diefenbach, K Singh, A Both, D Cherix… - Web Engineering: 17th …, 2017 - Springer
Abstract The field of Question Answering (QA) is very multi-disciplinary as it requires
expertise from a large number of areas such as natural language processing (NLP), artificial …