Editing Annotation (section)

=== Mathematical expression annotation ===

[[Mathematical expression]]s (symbols and formulae) can be annotated with their natural language meaning. This is essential for disambiguation, since symbols may have different meanings (e.g., "E" can be "energy" or "expectation value", etc.).<ref name="SchubotzScharpf2018">{{cite journal|author1=Moritz Schubotz|author2=Philipp Scharpf|display-authors=et al.|title=Introducing MathQA: a Math-Aware question answering system|doi=10.1108/IDD-06-2018-0022|date=12 September 2018|journal=Information Discovery and Delivery|volume=46|issue=4|pages=214–224|publisher=Emerald Publishing Limited|arxiv=1907.01642|s2cid=49484035}}</ref><ref name="ScharpfSchubotz2018">{{cite conference |first1=P. |last1=Scharpf |first2=M. |last2=Schubotz |display-authors=et al. |title=Representing Mathematical Formulae in Content MathML using Wikidata |date=2018|conference=ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2018) |url=https://openreview.net/pdf?id=BkZ1IIZu-H}}</ref> The annotation process can be facilitated and accelerated through recommendation, e.g., using the "AnnoMathTeX" system that is hosted by Wikimedia.<ref name="AnnoMathTeX">{{cite web|url=http://annomathtex.wmflabs.org|title=AnnoMathTeX Formula/Identifier Annotation Recommender System}}</ref><ref name="Scharpf2019">{{cite book|author1=Philipp Scharpf|author2=Ian Mackerracher|title=Proceedings of the 13th ACM Conference on Recommender Systems |chapter=''AnnoMathTeX'' - a formula identifier annotation recommender system for STEM documents |display-authors=et al.|doi=10.1145/3298689.3347042|date=17 September 2019|pages=532–3|isbn=9781450362436|s2cid=202639987|url=https://www.gipp.com/wp-content/papercite-data/pdf/scharpf2019b.pdf}}</ref><ref name="Scharpf2021">{{cite book|author1=Philipp Scharpf|author2=Moritz Schubotz|author3=Bela Gipp|title=Companion Proceedings of the Web Conference 2021 |chapter=Fast Linking of Mathematical Wikidata Entities in Wikipedia Articles Using Annotation Recommendation |doi=10.1145/3442442.3452348|date=14 April 2021|pages=602–9|url=https://www.gipp.com/wp-content/papercite-data/pdf/scharpf2021.pdf|arxiv=2104.05111|isbn=9781450383134|s2cid=233210264}}</ref>