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π° FactDeMice-CzechNews
This dataset contains trustworthy news articles collected from online news portals. The data is stored in JSON Lines (.jsonl) format, where each line represents a single article.
π Data structure
The dataset schema in cs_media.data.schema.json.
Each record includes the following fields:
id(string) β unique identifier of the article (UUID)origin(string) β who crawled this data, e.g.: BUT, TAIPEITECH, LINGEAurl(string) β original article URLtitle(string) β title of the articlehtml(string) β full HTML content of the article at the time of scraping in UTF-8 encodingtext(string) β plain text version of the article without HTML tags in UTF-8 encodingdateCrawled(string, ISO 8601) β timestamp of article collection in ISO formatdatePublished(string, ISO 8601) β date when the source page was published in ISO formatdateUpdated(string, ISO 8601) β date when the source page was updated in ISO format
Example record:
{
"id": "aaf04dcb-bed7-4b54-a8bf-c3d6738331b3",
"origin": "BUT",
"url": "https://example.cz/article",
"title": "Here goes the article title...",
"html": "<html> ... </html>",
"text": "Here goes the article text...",
"dateCrawled": "2025-07-10T14:32:00+02:00",
"datePublished": "2025-07-08T07:32:12+02:00",
"dateUpdated": "2025-07-08T09:01:34+02:00"
}
π Media Source Trustworthiness
We provide a list of all Czech and Slovak news outlets included in this dataset, a long with their trustworthiness assessments from two sources: MediaRating (NFNZ) and the Reuters Digital News Report. A hyphen (β) indicates that no ranking information was found for a given outlet, as the Reuters survey includes only a selected set of brands and is not exhaustive, and MediaRating reviews only full-format outlets that broadly cover social and political affairs in Czechia β which does not apply to outlets such as Auto.cz and GarΓ‘ΕΎ.cz (automotive), Sport.cz (sports), or Lupa.cz and Ε½ivΔ.cz (technology/science).
MediaRating (NFNZ) is an expert-based review system. According to its methodology, independent reviewers evaluate whether major newsrooms adhere to core journalistic and publishing standards. This offers a transparent overview of how outlets handle information.
The Reuters Digital News Report captures public opinion on brand trust. Respondents are asked: βHow trustworthy would you say news from the following brands is, on a scale from 0 (not at all trustworthy) to 10 (completely trustworthy)?β Answers are grouped so that 6β10 = trust, 5 = neither, and 0β4 = donβt trust. The values reported here are the percentage of respondents rating a brand 6β10.
π¨πΏ Czech media
| Outlet | MediaRanking (β ) | Reuters DNR 2024 (*) |
|---|---|---|
| e15.cz | A | - |
| seznamzpravy.cz | A | 57% |
| idnes.cz | A- | 53% |
| lidovky.cz | A- | 49% |
| novinky.cz | A- | 51% |
| blesk.cz | B+ | 18% |
| ahaonline.cz | - | - |
| auto.cz | - | - |
| garaz.cz | - | - |
| lupa.cz | - | - |
| sport.cz | - | - |
| zive.cz | - | - |
(*) The maximum score in the survey was 62%, providing context for interpreting the reported trust levels. Source: https://reutersinstitute.politics.ox.ac.uk/digital-news-report/2024/czech-republic
(β ) Scale is from A (meets journalistic standards) to C (mostly or completely fails to meet journalistic standards). Source: https://www.nfnz.cz/rating-medii/
πΈπ° Slovak media
| Outlet | Reuters DNR 2024 (*) |
|---|---|
| aktuality.sk | 46% |
| pravda.sk | 42% |
| pluska.sk | 31% |
| topky.sk | 28% |
| cas.sk | 27% |
| europskenoviny.sk | - |
(*) The maximum score in the survey was 56%, providing context for interpreting the reported trust levels. Source: https://reutersinstitute.politics.ox.ac.uk/digital-news-report/2024/slovakia
π Stats
FactDeMice-CzechNews dataset contains 170229 unique articles (due to canonical URLs).
| π¨πΏ (.cz) domain | number of articles |
|---|---|
| seznamzpravy.cz | 49375 |
| idnes.cz | 30000 |
| zive.cz | 10987 |
| lidovky.cz | 10888 |
| novinky.cz | 5844 |
| sport.cz | 3561 |
| ahaonline.cz | 3188 |
| auto.cz | 2486 |
| ac24.cz | 2240 |
| lupa.cz | 1549 |
| blesk.cz | 1349 |
| garaz.cz | 1154 |
| e15.cz | 653 |
| sum of cz domain | 123274 |
| πΈπ° (.sk) domain | number of articles |
|---|---|
| topky.sk | 29396 |
| pluska.sk | 14694 |
| aktuality.sk | 1924 |
| cas.sk | 571 |
| pravda.sk | 225 |
| europskenoviny.sk | 145 |
| sum of sk domain | 46955 |
Comparison with Hynky's "czech_news_dataset_v2"
Hynky's "czech_news_dataset_v2" contains only cz domains.
| domain | number of articles |
|---|---|
| denik.cz | 738288 |
| idnes.cz | 433567 |
| novinky.cz | 365813 |
| irozhlas.cz | 180248 |
| aktualne.cz | 141961 |
| seznamzpravy.cz | 71260 |
| sum of cz domain | 1931137 |
The following rows show what percentage of articles from dataset A also appear in dataset B, and vice versa.
Containment of FactDeMice Dataset (A) in Hynky's Czech News Dataset (B) for Each Domain Separately β β£Aβ©Bβ£/β£Aβ£
- idnes.cz: 21.067 %
- seznamzpravy.cz: 12.464 %
- novinky.cz: 0.222 %
Containment of Hynky's Czech News Dataset (B) in FactDeMice Dataset (A) for Each Domain Separately β β£Aβ©Bβ£/β£Bβ£
- idnes.cz: 1.458 %
- seznamzpravy.cz: 8.636 %
- novinky.cz: 0.004 %
Jaccard Similarity Between FactDeMice Dataset (A) and Hynky's Czech News Dataset (B) for Each Domain Separately β β£Aβ©Bβ£/β£AβͺBβ£
- idnes.cz: 1.382 %
- seznamzpravy.cz: 5.376 %
- novinky.cz: 0.003 %
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