Evaluating SQuAD-based Question Answering for the Open Research Knowledge Graph Completion

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Hrou, Moussab: Evaluating SQuAD-based Question Answering for the Open Research Knowledge Graph Completion. Hannover : Gottfried Wilhelm Leibniz Universität Hannover, Bachelor Thesis, 2022, IX, 48 S. DOI: https://doi.org/10.15488/12854

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Sum total of downloads: 641




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Abstract: 
Every year, approximately around 2.5 million new scientific papers are published.With the rapidly growing publication trends, it is increasingly difficult to manuallysort through and keep track of the relevant research – a problem that is only moreacute in a multidisciplinary setting. The Open Research Knowledge Graph (ORKG)is a next-generation scholarly communication platform that aims to address thisissue by making knowledge about scholarly contributions machine-actionable, thusenabling completely new ways of human-machine assistance in comprehending re-search progress.As such, the ORKG is powered by a diverse spectrum of NLP services to assist theexpert users in structuring scholarly contributions and searching for the most rele-vant contributions. For a prospective recommendation service, this thesis examinesthe task of automated ORKG completion as an object extraction task from a givenpaper Abstract for a query ORKG predicate. As a main contribution of this thesis,automated ORKG completion is formulated as an extractive Question Answering(QA) machine learning objective under an open world assumption. Specifically, thetask attempted in this work is fixed-prompt Language Model (LM) tuning (LMT)for few-shot ORKG object prediction formulated as the well-known SQuAD extrac-tive QA objective. Three variants of BERT-based transfomer LMs are evaluated.To support the novel LMT task, this thesis introduces a scholarly QA dataset akinin characteristics to the SQuAD QA dataset generated semi-automatically from theORKG knowledge base. As a result, the BERT model variants when tested in vanilla setting versus after LMT, show a positive, significant performance uplift for auto-mated ORKG completion as an object completion task. This thesis offers a strong empirical basis for future research aiming at a production-ready automated ORKG completion model.
License of this version: CC BY 3.0 DE
Document Type: BachelorThesis
Publishing status: publishedVersion
Issue Date: 2022
Appears in Collections:Fakultät für Elektrotechnik und Informatik

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pos. country downloads
total perc.
1 image of flag of Germany Germany 229 35.73%
2 image of flag of United States United States 117 18.25%
3 image of flag of No geo information available No geo information available 56 8.74%
4 image of flag of India India 34 5.30%
5 image of flag of United Kingdom United Kingdom 22 3.43%
6 image of flag of Pakistan Pakistan 16 2.50%
7 image of flag of Iran, Islamic Republic of Iran, Islamic Republic of 12 1.87%
8 image of flag of Korea, Republic of Korea, Republic of 11 1.72%
9 image of flag of China China 9 1.40%
10 image of flag of Canada Canada 9 1.40%
    other countries 126 19.66%

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