Discovery and recognition of formula concepts using machine learning

Philipp Scharpf (), Moritz Schubotz (), Howard S. Cohl (), Corinna Breitinger () and Bela Gipp ()
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Philipp Scharpf: University of Konstanz
Moritz Schubotz: University of Wuppertal and FIZ Karlsruhe – Leibniz Institute for Information Infrastructure
Howard S. Cohl: National Institute of Standards and Technology
Corinna Breitinger: University of Göttingen
Bela Gipp: University of Göttingen

Scientometrics, 2023, vol. 128, issue 9, No 3, 5025 pages

Abstract: Abstract Citation-based Information Retrieval (IR) methods for scientific documents have proven effective for IR applications, such as Plagiarism Detection or Literature Recommender Systems in academic disciplines that use many references. In science, technology, engineering, and mathematics, researchers often employ mathematical concepts through formula notation to refer to prior knowledge. Our long-term goal is to generalize citation-based IR methods and apply this generalized method to both classical references and mathematical concepts. In this paper, we suggest how mathematical formulas could be cited and define a Formula Concept Retrieval task with two subtasks: Formula Concept Discovery (FCD) and Formula Concept Recognition (FCR). While FCD aims at the definition and exploration of a ‘Formula Concept’ that names bundled equivalent representations of a formula, FCR is designed to match a given formula to a prior assigned unique mathematical concept identifier. We present machine learning-based approaches to address the FCD and FCR tasks. We then evaluate these approaches on a standardized test collection (NTCIR arXiv dataset). Our FCD approach yields a precision of 68% for retrieving equivalent representations of frequent formulas and a recall of 72% for extracting the formula name from the surrounding text. FCD and FCR enable the citation of formulas within mathematical documents and facilitate semantic search and question answering, as well as document similarity assessments for plagiarism detection or recommender systems.

Keywords: Mathematical information retrieval; Machine learning; Wikidata (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1007/s11192-023-04667-9

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