Centre for Science and Technology Studies Centre for Science and Technology Studies 2333AL Leiden Zuid Holland 31715273909

Highlights

Some highlights of VOSviewer are summarized below.

Data

  • Web of Science, Scopus, Dimensions, Lens, and PubMed. Co-authorship networks, citation-based networks, and co-occurrence networks can be created based on data downloaded from Web of Science, Scopus, Dimensions, and Lens. Co-authorship networks and co-occurrence networks can also be created based on PubMed data.
  • Crossref, Europe PMC, and OpenAlex. Networks can also be created based on data retrieved through the APIs of Crossref, Europe PMC, and OpenAlex. These APIs can be queried interactively in VOSviewer.
  • Semantic Scholar, OpenCitations, and WikiData. For a given set of DOIs, networks can also be created based on data retrieved through the APIs of Semantic Scholar, OpenCitations, and WikiData.

Visualization

  • Zooming and scrolling. Visualizations of bibliometric networks can be explored in full detail using zoom and scroll functionality similar to for instance Google Maps. A smart labeling algorithm prevents labels from overlapping each other.
  • Density and overlay visualizations. Density visualizations provide a quick overview of the main areas in a bibliometric network. Overlay visualizations can for instance be used to show developments over time.
  • Screenshots. Screenshots of bibliometric network visualizations can be created at a high resolution and can be saved in many popular graphical file formats, both bitmap and vector formats.

Techniques

  • Advanced layout and clustering techniques. State-of-the-art techniques for network layout and network clustering are provided. Layout and clustering results can be fine-tuned using various parameters.
  • Natural language processing techniques. Natural language processing techniques are available for creating term co-occurrence networks based on English-language textual data. Relevant and non-relevant terms can be distinguished algorithmically.
  • Creating bibliometric networks. A number of advanced features are available for creating bibliometric networks (e.g., co-authorship, bibliographic coupling, and co-citation networks). For instance, the influence of publications with many authors, many citations, or many references can be reduced using a fractional counting approach. Data cleaning can be performed using thesaurus files.