What sources does Overton track?
More information on the types and geographic focus of the sources in Overton Overton tracks more than a thousand different...
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- About the data
About the data
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What are your criteria for adding new sources?
How new policy sources are identified and assessed How do you decide what is and isn’t included? The majority of... -
What is Overton’s coverage and how does it compare to other systems?
More information on the number of sources and documents we collect Overton indexes more than 12M documents from more than... -
How international are your sources?
Information on the countries and regions that Overton collected data from We set out to try and make a global... -
How far back does the database go?
Does Overton contain only recent policy or older documents too? The quick but rough way to answer this is to... -
Documents in different languages
What languages does Overton support? Overton is largely language agnostic Overton is largely language agnostic (with some caveats – see... -
What are overrepresented topics and how are they found?
Overton automatically extracts topics from policy documents, and you can see these on individual document pages and in the API... -
How we disambiguate policy documents
How Overton tries to avoid collecting the same document multiple times Policy documents usually lack identifiers like ISBNs or DOIs... -
Where does funding information for scholarly articles come from?
Overton gets funding data from FundRef, Europe PMC and Gateway to Research Overton allows you to see where scholarly articles... -
About the SDG categories in Overton
Describes how policy documents are linked to different SDGs Please note: this functionality is still in beta. While we think... -
How are journal subjects assigned?
Where does the data in the Journal Subjects facet come from? We get information on the journals that research articles... -
How are scholarly references matched in policy documents?
A description of how Overton finds scholarly references in full text Policy documents don’t always – or even often –... -
About topics, entities and subject areas
Information on the taxonomies that Overton uses to map topics, entities and subject areas to policy documents Overton uses machine... -
Why am I seeing “unknown date” instead of a publication date?
This article explains how Overton handles errors in publication dates. By default Overton collects the publication date of each policy... -
How does Overton find people mentioned in policy documents?
A brief description of how we find researcher names in the full text of policy documents Overton tracks where it... -
How does Overton know about author affiliations?
Details how Overton links scholarly books and articles back to specific researchers and their institutions Overton gets affiliation data from... -
How does Overton find citation contexts?
When Overton finds a reference to a scholarly output in a policy document we try to show you where in... -
Why are some authors not appearing in the People tab?
If a name doesn’t return any matches or fewer citations than expected in the People tab there may still be... -
How does Overton know who authored a scholarly article?
Details how Overton finds author names for the scholarly books and papers cited by policy documents When Overton finds a... -
What are “data notes”?
Data notes appear at the bottom of search results on some screens. Overton uses them to make users aware of...
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