Ontology field guide
By NOSIBLE Research
IAB Content Ontology
IAB Content separates a reported event's subject from its entities, industry and market sentiment through time for event research.
Events about the same institution can concern different risks. A bank earnings release, depositor run, regulatory intervention and acquisition all name a bank but describe different subjects. IAB Content preserves those differences in a four-level hierarchy. World assigns one primary subject path to each canonical event.[1]
The hierarchy supports topic controls, thematic cohorts and tests of how attention changes during a market episode. It does not identify an issuer's industry or economic exposure. This guide provides every category, World base rates, a regional-bank failure study and downloadable evidence.
- Categories
- 709 categories
- Structure
- 4 levels
- World events labelled
- 100.0%
- Stable codes
- Since v1
- Release data
- CC0
Foundations
IAB Content classifies subject matter, not companies, industries or economic exposure
IAB Content provides a common hierarchy for subject matter across news, video, audio, games and other media. Broad roots support stable controls. Deeper categories separate narrower questions such as business banking, financial crises, consumer banking and financial reform. The standard was designed for contextual signalling and brand safety; research uses require independent validation against the target event cohort.[1]
World assigns the dominant subject expressed in each event record. It does not infer why the event matters to a security or whether investors acted on it. One primary path also compresses mixed subjects. Test neighbouring categories, source concentration and alternative text representations before treating a topic shift as an economic regime change.
Categories
IAB Content uses four levels to map 709 distinct subjects
The hierarchy contains 39 top-level subjects and 619 leaves across four tiers. Each World event carries one path at the available depth. The explorer exposes definitions, stable codes, full paths and World V1.2 counts. Search and bounded expansion keep all 709 categories accessible on this page without fragmenting the reference across separate pages.[1]
15,311,040 of 15,311,040 World events carry labels from IAB Content Ontology. Select a category to see its count and both relevant shares.
Attractions
Attractions
Definition
Entertainment and leisure destinations that attract visitors, including landmarks, amusement venues and recreational sites.
Potential research use
Visitor destinations and leisure venues
- Code
- Attractions
- Events with label
- 200,167
- Share of labelled
- 1.3%
- Share of World
- 1.3%
Events with label is the selected count. Label share divides it by 15,311,040 assigned events; World share divides it by all 15,311,040 events.
Representative World V1.2 events
One strong classified example per available year, with up to ten years shown.
Nintendo Partners With Universal For New Theme Park Attractions
Coverage 213Disney Announces Toy Story Land Attractions Including Slinky Dog Dash
Coverage 13UK Terror Attacks Cause Visitor Numbers to Drop at London Attractions
Coverage 18Disney Announces New Mary Poppins and Wakanda Attractions at Epcot
Coverage 113Coronavirus Closures Hit Global Attractions and Las Vegas Shows
Coverage 109Disney Unveils New Park Attractions and Lore at Destination D23 2021
Coverage 25Universal Studios Florida Closes Five Kids Attractions for New Family Entertainment
Coverage 165Arizona showcases quirky attractions from The Thing to a new poop museum
Coverage 76Museum of Ice Cream Singapore Unveils New Attractions and Flavors
Coverage 107UK Cuts VAT on Summer Attractions to Boost Cost of Living
Coverage 362
Browse categories to compare definitions, World V1.2 statistics and representative classified events.
Example usage 1 of 3
Example Usage: Regional-bank coverage rotates from routine banking into crisis within just days
World contains 512 English events naming Silicon Valley Bank, Signature Bank or First Republic Bank from January through June 2023. The banks failed on 10 March, 12 March and 1 May. Daily coverage is divided by all English World events and given a seven-day half-life, separating the shock from overall corpus growth.[2][3][4]
The Business and Finance root stays near 90%, but its leaves rotate. Business Banking and Finance falls from 63.2% before failure to 11.2% during intervention. Financial Crisis rises from zero to 41.8%. That transition separates routine bank coverage from systemic-stress reporting and creates a cleaner clock for peer-contagion, deposit and policy tests.[5]
The fixed cohort names Silicon Valley Bank, Signature Bank or First Republic Bank. Lines apply a seven-day half-life to assigned category counts. “Policy and depositors” combines Financial Reform and Consumer Banking. The chart describes classified reporting, not deposits, contagion or returns.
Example usage 2 of 3
Example Usage: Hollywood strikes move coverage from scripts into production, studios and distribution
Hollywood strike coverage changes category when actors join writers on 14 July 2023. Screenwriting falls from 39.2% to 11.4% of assigned IAB events. Movies rises from 8.2% to 21.4%, while Entertainment Industry rises from 5.7% to 15.5%. The reporting object moves from scripts into production and distribution disruption.[9]
The category shift defines two different exposure windows. The writers-only phase concentrates on content creation and contract terms. The joint strike extends the shock to performers, release schedules, studios and streaming platforms. An entertainment keyword cannot separate those mechanisms; IAB categories identify when the affected system expands beyond the original labor dispute and across the wider commercial value chain.[10]
- Screenwriting
- -27.8pp
- Movies
- +13.2pp
- Entertainment Industry
- +9.8pp
The fixed English strike cohort contains 1,264 IAB-assigned events from May through November 2023. Each line pools category counts across the current and prior thirteen days, then divides by all assigned cohort events. Markers identify the writers' strike, actors' strike and writers' agreement.
Example usage 3 of 3
Example Usage: Home Insurance enters Hurricane Ian coverage after Florida landfall exposes household financial risk
Hurricane Ian converts a weather cohort into an insurance cohort after Florida landfall on 28 September 2022. Normalized IAB-assigned coverage rises from 2,371 to 9,257 events per million across matched seven-day windows, a 3.9-fold increase after controlling for corpus growth. Disaster assignments increase from 26.3% to 34.8%.[7]
Home Insurance rises from 2.6% before landfall to 5.5% afterwards. The shift identifies when physical hazard becomes household balance-sheet exposure. Weather keywords capture the storm; IAB categories separate property risk, insurance demand and wider consumer consequences after damage assessments and claims arrive.[8]
- Normalized coverage
- +6,886 per million
- Disasters
- +8.5pp
- Home Insurance
- +2.9pp
- Weather
- -2.7pp
The explicit English Hurricane Ian cohort compares the seven days before 28 September 2022 with the period from landfall. Each line pools category counts across the current and prior six days, then divides by all IAB-assigned cohort events in that window.
Data and sources
Download IAB Content and References
Downloads
Download categories and counts as CSV, or the complete machine-readable release as JSON.
Release details and citation files
ManifestRelease READMECC0 license and scopeCitation fileChangelog
Need the complete World event schema? Open the World data dictionary.
References
- [1]IAB Tech Lab. (2024). Content Ontology 3.0.
- [2]Federal Deposit Insurance Corporation. (2023, March 13). FDIC acts to protect all depositors of the former Silicon Valley Bank.
- [3]New York State Department of Financial Services. (2023, March 12). Notice regarding Signature Bank.
- [4]Federal Deposit Insurance Corporation. (2023, May 1). JPMorgan Chase assumes all deposits of First Republic Bank.
- [5]Board of Governors of the Federal Reserve System. (2023). Review of the Federal Reserve's supervision and regulation of Silicon Valley Bank.
- [6]Jiang, E. X., Matvos, G., Piskorski, T., & Seru, A. (2024). Monetary tightening and U.S. bank fragility in 2023. Journal of Financial Economics, 159, 103899.
- [9]SAG-AFTRA. (2023). TV/Theatrical/Streaming strike notice and order, effective 14 July 2023.
- [10]Writers Guild of America West. (2023). Annual report documenting the work stoppage that began 2 May 2023.
- [7]National Hurricane Center. (2023). Tropical Cyclone Report: Hurricane Ian, 23-30 September 2022.
- [8]Insurance Information Institute. (2022). Ian brings financial first response to fore: begin claims-filing.
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