With the advanced search option (available in Dimensions Analytics only) in the web application, Dimensions offers additional ways of formulating more complex, keyword-based search queries:

Search in specific metadata fields

In addition to running keyword searches within several search indices such as "full data" or "title and abstract", both of which include a range of metadata fields, Dimensions also allows you to restrict your search to specific metadata fields only, for example in the title, acknowledgements, author names or certain date ranges or bibliometric indicators.

How to use the "search fields" option

To access this feature, click into the search box at the top, then on "Advanced" at the bottom-right below the search box. Next steps:

  1. Select a search field from the drop-down menu.
  2. Enter a value (for example a date range), a keyword, a phrase (enclosed by quotation marks) or a Boolean query (using AND, OR or NOT) in the text box below.
  3. Click "Add" to add this partial query to the overall query in the search box on the left.
  4. Click "Search" at the bottom to run your query.

You can also combine queries in multiple fields with each other by selecting additional fields from the drop-down menu and choosing a Boolean operator to connect this search to your existing query. The automatically set parentheses help you create sensible Boolean nesting. For all parts of the query where no specific search field is specified the search mode selected at the bottom of the window will be used ("Full data" or "Title and abstract").

Available fields and content types

The fields that are available in the advanced search are listed in the table below. More fields will be added over time to support further use cases. We are also working on making existing fields available in more content types, such as the research organization search for clinical trials and patents.

Field name
[technical name]
DescriptionExampleAvailable in
The abstract or summary of a document.abstract:("global warming")Publications
The acknowledgements section text as found in the source document.acknowledgements:(Horizon 2020)Publications
Altmetric Attention Score
The Altmetric Attention Score is a weighted count of all of the online attention Altmetric have found for an individual research output. This includes mentions in public policy documents and references in Wikipedia, mainstream news, social networks, blogs and more.altmetric:[50 TO *]Publications
Clinical Trials
Application number
The number assigned to a patent application when it is filed.application_number:US06791308Patents
CPC group
Cooperative Patent Classification (CPC) group.cpc_group:H01L29Patents
Date - Expiration
The expiration date is an estimate of when a patent is expected to expire. Note: The expiration date should not be considered authoritative or final. An attorney or the relevant patent office should be consulted for an authoritative expiration and status determination.expiration_date:[2022-01-01 TO 2022-01-31]Patents
Date - Filing
The filing date is the date when a patent application is first filed at a patent office.filing_date:[2022-01-01 TO 2022-01-31]Patents
Date - Granted
The granted date is the date when the patent office issues a patent to the applicant.granted_date:[2022-01-01 TO 2022-01-31]Patents
Date - Inserted
Date when the document has been first created in Dimensions. Note: Documents appear at least several days after they have been created.inserted_date:[2022-01-01 TO 2022-01-31]Publications
Clinical Trials
Policy Documents
Date - Primary completion
The pimary completion date is the the date on which the last participant in a trial was examined to collect data for the primary outcome measure. For clinical trials with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures.primary_completion_date:[2024-05-01 TO 2024-05-10]Clinical Trials
Date - Priority
The priority date describes the first date of filing of a patent application.priority_date:[2022-01-01 TO 2022-01-31]Patents
Date - Publication
The publication date of a document, e.g. “2018-01-01”. Note: dates can sometimes be incomplete and include only the month or the year.date:[2020-01-01 TO *]Publications
The Digitial Object Identifier (DOI) of the record.doi:10.3389/frma.2018.00023Publications
Exact search
Search for keywords in the full text of a publication. This search index is not normalized (stemmed) and can be used when searching for exact terminology, such as gene names, chemical compounds, etc.full_data_exact:(gene NOT genes)Publications
Family ID
Identifier of the simple patent family, as assigned by the EPO. Generally, simple families contain all records which share the same priority.family_id:27109640
Field Citation Ratio (FCR)
The relative citation performance of a publication when compared to similarly-aged articles in its subject area. A value of more than 1.0-1.5 indicates higher than average citation, when defined by FoR subject code, and publication year. The FCR is calculated for all publications that are at least 2 years old and were published in 2000 or later.fcr:[1.5 TO *]Publications
Funder ID

GRID ID of the funding organization.

Clinical Trials
Funding amount (USD)
Funding amount awarded in USD. Note: We obtain funding amounts in their original currencies and convert them based on the exchange rate at the time of the start date of the grant. In the case that a yearly distribution of the funding amount is provided (e.g. NIH projects), the funding amount is converted for each year's exchange rate.funding_usd:[250000 TO *]Grants
Funding program
Funding program or scheme of a grantprogram:RIAGrants
Government interest statement
The government interest statement describes how an invention was funded by a US federal research grant or procurement contract.federal_support:R01DA014026
Grant number
Grant identifier, as provided by the source (e.g., funder, aggregator) the grant was derived from.grant_number:2141141Grants
IPCR group
International Patent Classification (ICPR) group.ipcr_group:H01L29Patents
International Standard Book Number (online and print).isbn:978-3-030-80701-6Publications
International Standard Serial Number (online and print).issn:1476-4687Publications
MeSH terms
Medical Subject Headings (MeSH) from PubMed / MEDLINE.mesh_terms:(Neural Networks)Publications
Clinical Trials
Number of affiliation countries
Count of identified affiliation countries in a publication.country_count:[2 TO 10]Publications
Number of affiliations
Count of identified researcher affiliations in a publicationorg_count:[1 TO 1]Publications
Number of authors
Count of authors, as they appear in the original document.authors_count:[* TO 40]Publications
Number of citations
Publication citations is the number of times that a publication has been cited by other publications in the database. Citing publications can be of any publication type, such as articles, chapters, preprints, or monographs.citations:[100 TO *]Publications
Number of family members
The number of documents within a simple patent family.family_count:[5 TO 10]Patents
Number of participants

The total number of participants to be enrolled or the actual total number of participants that are enrolled in the clinical trial.

participant_count:[100 TO 1000]Clinical Trials
Patent number
Publication number, application number, family id, priority id, orange book application number.patent_number:US-7122179-B2Patents
Relative Citation Ratio (RCR)
The relative citation performance of a publication when comparing its citation rate to that of other publications in its area of research. A value of more than 1.0 shows a citation rate above average. The article's area of research is defined by the articles that have been cited alongside it. The RCR is calculated for all PubMed publications that are at least 2 years old.rcr:[1.5 TO *]Publications
Research organization ID
GRID ID of the (disambiguated) organizationorg_id:grid.26999.3dPublications
Clinical Trials
Research organization name (raw)
Raw names of the organizations that researchers are affiliated with as well as awarded organizations. Note: Unless quotes are used for an exact match, complex proximity searches are automatically created. For example, org_names_raw: Harvard Chemistry will return results with Dept. of Chemistry Harvard University or Harvard University Department of Chemistry and other permutations. Boolean nesting to process phrases or words in a specified order is not supported.org_names_raw:"Department of Physics"Publications
Clinical Trials
Researcher name
The name of a researcher linked to the record.researcher_name:(Daniel W Hook)Publications
Clinical Trials
Source title name
Source title (e.g. journal name, preprint server, book series, conference proceeding). This is analogous to the 'source titles' filter.source_title:arXivPublications
The title of a document.title:("climate change" OR "global warming")Publications
Clinical Trials
Policy Documents
Title, abstract, claims
Search within title, abstract and claims fields of a patent record.title_abstract_claims:("foldable screen")Patents

Additional information about keyword searches in the full data or title and abstract indices can be found in How to search in Dimensions.

Search using auto-suggested co-occurring concepts

With this option, you can ask Dimensions to suggest terms and concepts co-occurring with the keywords you're looking for. You can start by either using one or more keywords or phrases to perform a search and then refine your query using "Advanced" > "Concepts", or - with the search box empty - simply click on "Advanced" and then "Concepts" to start building your query by entering one or more search terms in the pop-up window and then clicking "Recalculate concepts" on the right-hand side for further suggestions. Click on "Add" to add a term or phrase to your query; by default, this will be done using Boolean AND, but you may change the operator to OR or NOT and/or use additional term modifiers (see above). Finally, select if you'd like to search in the full text or title and abstract only and click "Search" to run the search.

Search using IDs

You can use the "ID Search" to search for a maximum of 25,000 documents using an ID, one ID per line. The URL of an ID search is valid for one year.

Supported IDs

  • Publications: DOI, ISBN, PubMed ID, arXiv ID, PMC ID, Dimensions publication ID
  • Datasets: DOI, Dimensions dataset ID
  • Grants: external (funder's own) project number, Dimensions grant ID
  • Patents: patent number, application number, patent family number and FDA orange book application ID
  • Clinical Trials: external trial ID such as the NCT number as well as secondary trial IDs provided by the source
  • Policy Documents: Dimensions policy document ID