Refined Commonsense Knowledge from Large-Scale Web Contents - Archive ouverte HAL Access content directly
Journal Articles IEEE Transactions on Knowledge and Data Engineering Year : 2022

Refined Commonsense Knowledge from Large-Scale Web Contents

Abstract

Commonsense knowledge (CSK) about concepts and their properties is useful for AI applications. Prior works like ConceptNet, COMET and others compiled large CSK collections, but are restricted in their expressiveness to subject-predicate-object (SPO) triples with simple concepts for S and strings for P and O. This paper presents a method, called ASCENT++, to automatically build a large-scale knowledge base (KB) of CSK assertions, with refined expressiveness and both better precision and recall than prior works. ASCENT++ goes beyond SPO triples by capturing composite concepts with subgroups and aspects, and by refining assertions with semantic facets. The latter is important to express the temporal and spatial validity of assertions and further qualifiers. ASCENT++ combines open information extraction with judicious cleaning and ranking by typicality and saliency scores. For high coverage, our method taps into the large-scale crawl C4 with broad web contents. The evaluation with human judgements shows the superior quality of the ASCENT++ KB, and an extrinsic evaluation for QA-support tasks underlines the benefits of ASCENT++. A web interface, data and code can be accessed at https://www.mpi-inf.mpg.de/ascentpp.
Fichier principal
Vignette du fichier
2112.04596.pdf (554.98 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03537547 , version 1 (20-01-2022)
hal-03537547 , version 2 (10-09-2022)

Identifiers

  • HAL Id : hal-03537547 , version 2

Cite

Tuan-Phong Nguyen, Simon Razniewski, Julien Romero, Gerhard Weikum. Refined Commonsense Knowledge from Large-Scale Web Contents. IEEE Transactions on Knowledge and Data Engineering, In press. ⟨hal-03537547v2⟩
44 View
83 Download

Share

Gmail Facebook X LinkedIn More