Overview: Plum Metrics

Plum Analytics is building the next generation of research metrics for scholarly research.

Metrics are captured and correlated at the group / collection level (e.g., lab, department, museum, journal, etc.)

We categorize metrics into 5 separate types: Usage, Captures, Mentions, Social Media, and Citations. Examples of each type are:

  • Usage - Downloads, views, book holdings, ILL, document delivery
  • Captures - Favorites, bookmarks, saves, readers, groups, watchers
  • Mentions - blog posts, news stories, Wikipedia articles, comments, reviews
  • Social media - Tweets, +1's, likes, shares, ratings
  • Citations - PubMed, Scopus, patents

We gather metrics around what we call artifacts. Artifacts are more than just the journal articles that a researcher authors. Artifacts are any research output that is available online. We gather metrics about:

  • articles
  • blog posts
  • book chapters
  • books
  • cases
  • clinical trials
  • conference papers
  • datasets
  • figures
  • grants
  • interviews
  • letters
  • media
  • patents
  • posters
  • presentations
  • source code
  • theses / dissertations
  • videos
  • web pages

We aggregate artifact and author level metrics into a researcher graph.

Current List of Metrics

Below is a listing of the current type of metrics that PlumX supports, and samples of providers where we harvest the data from. This list is growing fast / stay tuned.

Type Metric Example Source(s) Description
Usage Abstract Views dSpace, ePrints, PLoS The number of times the abstract of an article has been viewed
Usage Clicks bit.ly, Facebook The number of clicks of a URL
Usage Collaborators GitHub The number of collaborators of an artifact
Usage Downloads Dryad, Figshare, Slideshare, Github, Institutional Repositories The number of times an artifact has been downloaded
Usage Figure Views figshare, PLoS The number of times the figure of an article has been viewed
Usage Full Text Views PLoS The number of times the full text of an article has been viewed
Usage Holdings WorldCat The number of libraries that hold the book artifact
Usage HTML Views PLoS The number of times the html of an article has been viewed
Usage PDF Views dSpace, ePrints, PLoS The number of times the PDF of an article has been viewed
Usage Views Dryad The number of times the dataset has been viewed.
Usage Supporting Data Views PLoS The number of times the supporting data of an article has been viewed
Captures Bookmarks CiteULike, Delicious Number of times an artifact has been bookmarked
Captures Favorites Slideshare, YouTube The number of times the artifact has been marked as a favorite
Captures Followers GitHub The number of times a person or artifact has been followed
Captures Forks Github The number of times a repository has been forked
Captures Readers Mendeley The number of people who have added the artifact to their library
Captures Subscribers Vimeo, YouTube The number of people who have subscribed for an update
Captures Watcher Github The number of people watching the artifact for updates
Mentions Comment count Facebook, Reddit, Slideshare, Vimeo, YouTube The number of comments made about an artifact
Mentions Forum Topic Count Vimeo The number of topics in a forum discussing the artifact
Mentions Gist count GitHub The number of gists in the source code repository
Mentions Links Wikipedia The number of links to the artifact
Mentions Review count SourceForge The number of user reviews of the artifact
Mentions Blog count Research Blogging, Science Seeker The number of blog posts written about the artifact
Mentions Reviews Amazon The number of reviews written about the artifact
Social Media Likes Facebook, Vimeo, YouTube The number of times an artifact has been liked
Social Media +1 Google The number of times an artifact has gotten a +1
Social Media Ratings SourceForge The average user rating of the artifact.
Social Media Recommendations Figshare, SourceForge The number of recommendations an artifact has received
Social Media Score Reddit The number of upvotes minus downvotes on Reddit
Social Media Shares Facebook The number of times a link was shared on Facebook
Social Media Tweets Topsy The number of tweets that mention the artifact
Citations Cited by CrossRef The number of articles that cite the artifact according to CrossRef
Citations Cited by Microsoft Academic Search The number of articles that cite the artifact according to Microsoft Academic Search
Citations Cited by PubMed The number of PubMed Central articles that cite the artifact
Citations Scopus Cited-by Count Scopus The number of articles that cite the artifact according to Scopus
Citations Cited by USPTO The number of patents that reference the artifact according to the USPTO
Metrics as of May 13, 2014