OpenAlex: A fully-open index of scholarly works, authors, venues, institutions, and concepts

@article{Priem2022OpenAlexAF,
  title={OpenAlex: A fully-open index of scholarly works, authors, venues, institutions, and concepts},
  author={Jason Priem and Heather A. Piwowar and Richard Orr},
  journal={ArXiv},
  year={2022},
  volume={abs/2205.01833}
}
In May 2021, Microsoft announced that it was discontinuing support for Microsoft Academic Graph (Sinha, Shen, et al., 2015), a free and widely-used Scientific Knowledge Graph (SKG). This was met with considerable concern, as MAG was viewed as difficult to replace with existing systems (Tay, Martín-Martín, and Hug, 2021). The OpenAlex project was created to address this concern. It launched as a drop-in replacement for MAG contemporaneously with MAG’s retirement on January 1st 2022. 

Figures from this paper

Comparison of metadata with relevance for bibliometrics between Microsoft Academic Graph and OpenAlex until 2020
Introduction Since its launch in 2015, Microsoft Academic Graph (MAG; Sinha et al., 2015) had been a promising new data source for bibliometric analyses due to its large coverage and set of available

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