#ontologies
Live, measured metrics for the hashtag #ontologies from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #ontologies
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · mastodon.social (Mastodon public tags API) · fetched 2026-09-28 05:31 UTC1 uses by 1 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mastodon.social (Mastodon public search API) · fetched 2026-09-28 05:31 UTCLive pulse
measured · mastodon.social (Mastodon tag timeline) · fetched 2026-09-28 05:31 UTCEverything below is measured over the latest 40 public posts (spanning ~4851 hours).
Posting hours (UTC) — busiest: 14:00
Languages: English (31) · German (7) · French (2)
Avg boosts / post: 2.6
Top of the latest posts
Stepped down as area editor of Elsevier's Journal of Web Semantics. Seeing the editorial terms formally spelled out (obligations & IP assignments for unpaid service) made the imbalance too clear to keep committing to. I'd rather put my edit
🤠 New frequency, same signal. I've moved my Mastodon home: ▸ OLD · @lysander07 ▸ NEW · @haraldsack07 Followers travel with the ship — but if you slipped through the re-route, this is the new port. Same tunes. 📡 Update your records & re-fo
LintedData is a linter for RDF and Ontologies for easy use in CI pipelines, we recently released. It checks for common violations of best practices in ontology engineering. GitLab: https://gitlab.com/dlr-dw/linteddata/ Docker: https://hub.d
What “ontologies” means
Wiktionary · Wikipediaontologies
- nounThe branch of metaphysics that addresses the nature or essential characteristics of being and of things that exist; the study of being qua being.
In information science, an ontology encompasses a representation, formal naming, and definitions of the categories, properties, and relations between the concepts, data, or entities that pertain to one, many, or all domains of discourse. More simply, an ontology is a way of showing the properties of a subject area and how they are related, by defining a set of terms and relational expressions that represent the entities in that subject area. The field which studies ontologies so conceived is som
“Ontology (information science)” on Wikipedia (CC BY-SA) →#ontologies across platforms
every network with a public tag surfaceFollow #ontologies straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/ontologies