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Fast Concept Mention Grouping for Concept Map-based Multi-Document Summarization

Falke, Tobias ; Gurevych, Iryna (2019)
Fast Concept Mention Grouping for Concept Map-based Multi-Document Summarization.
The 2019 Conference of the North American Chapter of the Association for Computational Linguistics (NAACL 2019). Minneapolis, USA (02.06.2019--07.10.2019)
doi: 10.18653/v1/N19-1074
Konferenzveröffentlichung, Bibliographie

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Kurzbeschreibung (Abstract)

Concept map-based multi-document summarization has recently been proposed as a variant of the traditional summarization task with graph-structured summaries. As shown by previous work, the grouping of coreferent concept mentions across documents is a crucial subtask of it. However, while the current state-of-the-art method suggested a new grouping method that was shown to improve the summary quality, its use of pairwise comparisons leads to polynomial runtime complexity that prohibits the application to large document collections. In this paper, we propose two alternative grouping techniques based on locality sensitive hashing, approximate nearest neighbor search and a fast clustering algorithm. They exhibit linear and log-linear runtime complexity, making them much more scalable. We report experimental results that confirm the improved runtime behavior while also showing that the quality of the summary concept maps remains comparable.

Typ des Eintrags: Konferenzveröffentlichung
Erschienen: 2019
Autor(en): Falke, Tobias ; Gurevych, Iryna
Art des Eintrags: Bibliographie
Titel: Fast Concept Mention Grouping for Concept Map-based Multi-Document Summarization
Sprache: Englisch
Publikationsjahr: 27 Februar 2019
Ort: Minneapolis, Minnesota
Verlag: Association for Computational Linguistics
Buchtitel: Proceedings of the 2019 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, Volume 1 (Long and Short Papers)
Veranstaltungstitel: The 2019 Conference of the North American Chapter of the Association for Computational Linguistics (NAACL 2019)
Veranstaltungsort: Minneapolis, USA
Veranstaltungsdatum: 02.06.2019--07.10.2019
DOI: 10.18653/v1/N19-1074
URL / URN: https://aclanthology.org/N19-1074
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Kurzbeschreibung (Abstract):

Concept map-based multi-document summarization has recently been proposed as a variant of the traditional summarization task with graph-structured summaries. As shown by previous work, the grouping of coreferent concept mentions across documents is a crucial subtask of it. However, while the current state-of-the-art method suggested a new grouping method that was shown to improve the summary quality, its use of pairwise comparisons leads to polynomial runtime complexity that prohibits the application to large document collections. In this paper, we propose two alternative grouping techniques based on locality sensitive hashing, approximate nearest neighbor search and a fast clustering algorithm. They exhibit linear and log-linear runtime complexity, making them much more scalable. We report experimental results that confirm the improved runtime behavior while also showing that the quality of the summary concept maps remains comparable.

Freie Schlagworte: AIPHES;UKP_reviewed
Fachbereich(e)/-gebiet(e): 20 Fachbereich Informatik
20 Fachbereich Informatik > Ubiquitäre Wissensverarbeitung
DFG-Graduiertenkollegs
DFG-Graduiertenkollegs > Graduiertenkolleg 1994 Adaptive Informationsaufbereitung aus heterogenen Quellen
Hinterlegungsdatum: 18 Sep 2019 12:13
Letzte Änderung: 11 Jun 2024 07:17
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