Last updated: November 1, 2026
This policy describes how DataQuest – Entity Linking, a browser extension extending the original DataQuest project, accesses, uses, and transmits information. DataQuest provides two independent functions: identifying a webpage’s main Wikidata entity and annotating entity mentions in webpage text.
Webpage address and entity information. When you open DataQuest, its main-entity identification functionality uses the active page’s URL and related identifiers to look up information about Wikidata entities. The extension may contact Wikidata services and other external services used to display linked websites or similar entities. These services receive the information necessary to fulfill the corresponding requests and may process technical connection information under their own policies.
Webpage paragraph text. Text annotation is optional. Only when you choose Process page does DataQuest extract text from nonempty HTML paragraph (<p>) elements in the current webpage and send batches of that text to the remote entity-linking service. Text may include material outside the main article, personal information, or other sensitive content present in the page’s paragraphs. DataQuest does not restrict extraction to a designated article container.
Entity-linking results. The remote service returns identified mentions and associated entity information. DataQuest uses these results to display annotations and hover cards in the webpage.
On a user-initiated annotation request, DataQuest sends the extracted paragraph text over HTTPS to an entity-linking service hosted on infrastructure operated by the University of Chile.
The service uses ReFinED, OpenTapioca, or both systems (Combined) to identify entities in the submitted text. The results are returned to DataQuest and used to annotate the current webpage.
Before the first annotation request, DataQuest displays an explanation and requests your agreement. The explanation remains available under Privacy information in the Annotations interface. You decide whether to initiate processing on each page; granting the initial agreement does not automatically submit every page you visit.
Do not use text annotation on confidential or sensitive webpages unless you are comfortable sending their paragraph text to the remote service.
DataQuest uses extension storage to retain your first-use annotation agreement, entity-linking settings associated with individual tabs during a browser session, and information used by the original Wikidata lookup functionality (including cached domain-related mappings). This information is stored in your browser’s extension storage, not in the remote entity-linking backend as part of the settings feature.
You can stop further annotation requests by not choosing Process page. Removing the extension also removes its locally managed extension data through the browser’s normal uninstall process. This does not retroactively remove any technical server logs generated by earlier requests.
DataQuest processes submitted webpage text to identify entities and return annotation results. The entity-linking service does not intentionally store submitted paragraph text as a separate record.
The server maintains technical logs for operation, security, and troubleshooting. These logs may include IP addresses, request timestamps, requested paths, response status codes, and other connection metadata.
Technical logs may be retained according to the server’s operational configuration. They are accessible to authorized administrators responsible for maintaining the service.
In addition to the university-operated entity-linking service, DataQuest uses external knowledge and entity-information services, including Wikidata and Wikimedia resources. The original DataQuest functionality may also query services used to retrieve related or similar entities, such as Wembedder. Requests to these services are subject to their respective privacy practices.
The remote ReFinED and OpenTapioca components are processing systems used within the backend deployment; they are not bundled as executable models in the browser extension.
DataQuest uses webpage addresses, paragraph text, entity information, and related technical request data to deliver its disclosed Wikidata navigation and entity annotation features and to operate or troubleshoot the supporting service. DataQuest does not require an account to use these features.
Information obtained through Chrome extension APIs is used in accordance with the Chrome Web Store User Data Policy, including its Limited Use requirements. The extension’s access to webpage content is intended for its disclosed functionality, not for unrelated browsing surveillance.
Paragraph text sent for entity linking is transmitted to the configured backend over HTTPS. No internet service can be represented as risk-free; avoid submitting sensitive pages. You can use the main-entity navigation functionality without invoking text annotation, and you can refrain from processing any particular page.
For questions about DataQuest’s data handling, contact the extension maintainer through the project repository: MichellePG/dataquest-entity-linking. Do not post private page content, credentials, or other sensitive information in public GitHub issues. A dedicated private contact method may be provided in the extension’s Chrome Web Store listing.
This policy may be updated if DataQuest’s functionality, infrastructure, or data-handling practices change. The updated document will show its revision date. Material changes to user-data practices will require corresponding updates to the extension’s disclosures and, where applicable, consent mechanisms.