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ArCOV-19: The First Arabic COVID-19 Twitter Dataset with Propagation Networks

Paper · 2021 · Fatima Haouari, Maram Hasanain, Reem Suwaileh et al.

Summary

Arabic is one of the most-used languages on Twitter, but it was poorly covered by early COVID-19 social media collections. Some multilingual datasets held only a small Arabic share, others were random samples not focused on the pandemic, and the one Arabic-only set covered a few months and had no diffusion data. The authors built ArCOV-19, an Arabic-only COVID-19 tweet collection spanning 27 January 2020 to 31 January 2021, with about 2.7M original tweets (retweets excluded). Each day, a crawler ran hand-maintained keyword, phrase and hashtag queries against the Twitter search API. The authors revised these queries as new sub-topics trended, for example adding vaccine terms in December 2020. For a filtered set of each day's 1,000 most popular tweets, they also gathered propagation networks: retweets plus full reply threads. A first analysis showed that spikes in country-related tweets matched the first reported cases in Arab countries, and that news agencies dominated the top accounts and shared links. The resource supports NLP, IR and social computing work, especially misinformation studies.

Key points

  • Scale and coverage: about 2.7M source tweets from over 690k unique users, covering one year. Verified users make up 0.81% of accounts but wrote 18.66% of the tweets, and 25.40% of the tweets contain URLs.
  • Collection: daily Twitter search API queries were restricted to Arabic, with retweets excluded and duplicates removed within each day.
    • The API returns at most 3,200 tweets per query and only searches the past 7 days.
    • For days missed for technical reasons, the authors used GetOldTweets3 with the same queries.
  • "Top subset" selection pipeline:
    • drop tweets containing words from a custom inappropriate-word list;
    • drop tweets with more than two URLs, more than four hashtags, or fewer than four tokens;
    • for exact-text duplicates, keep only the most popular copy;
    • rank the remaining tweets by retweets plus likes and keep the top 1,000 per day.
  • Propagation networks: retweets were collected via Pickaw, and direct and indirect replies via the PHEME conversation script. At the time of writing, replies had been gathered only up to the end of April 2020.
  • Release: the dataset is distributed as tweet IDs to respect Twitter's terms. It also includes the daily query lists and a language-independent crawler. Saudi Arabia leads the geolocated content, with Kuwait second at 9.6%. The follow-up dataset ArCOV19-Rumors builds on this resource.

Interesting ideas

  • I1. Before choosing a high-value subset, the authors apply a few cheap, transparent rules (link and hashtag counts, a minimum length, a blocklist), which removes most junk without any trained classifier.
  • I2. When texts are exact duplicates, only the single highest-scoring copy is kept, so repeated content does not dominate the sample.
  • I3. The query list used for each period is published with the data, which makes the selection process auditable and reproducible even as the queries change.
  • I4. Gaps caused by a failed collector are filled by a different tool driven by the same queries, which keeps the overall sample consistent.
  • I5. Reply threads are collected as trees that include indirect replies, not just flat lists, so the conversational structure around a message is preserved.

For Mova

How these ideas could serve Mova, our small open language model — its files, stages and tests:

  • I1 (learn): run similar rule-based checks on candidate sentences before the witness parsers vote, so silver agreement is not spent on noisy or spam-like inputs.
  • I2 (learn): deduplicate training and evaluation sentences while keeping one representative, so frequent templates do not inflate parser accuracy or skew self-induced repair rules.
  • I3 (learn): store the exact selection criteria and source version with every silver-data batch, so a later regression can be traced to how the data was chosen.
  • I4 (learn): if a primary witness parser or teacher tier is unavailable, fall back to another one under identical inputs and filters, and mark which items came from the fallback.
  • I5 (frames): treat dialogue or multi-turn text as a reply tree, so speech-act labels and cross-turn coreference can look at the parent utterance rather than only the previous line.

Our summary of the paper, in our own words — not its text. The work belongs to its authors; read it at the links above.

 Institutions

 Fields, topics and concepts

Cite

Cite as Fatima Haouari, Maram Hasanain, Reem Suwaileh and Tamer Elsayed. 2021. ArCOV-19: The First Arabic COVID-19 Twitter Dataset with Propagation Networks. Proceedings of the Sixth Arabic Natural Language Processing Workshop.

The paper itself, not this page. BibTeX from the library's record of the work.

@inproceedings{haouari2021arcov,
  title = {{ArCOV-19: The First Arabic COVID-19 Twitter Dataset with Propagation Networks}},
  author = {Fatima Haouari, Maram Hasanain, Reem Suwaileh and Tamer Elsayed},
  booktitle = {Proceedings of the Sixth Arabic Natural Language Processing Workshop},
  year = {2021},
  url = {https://aclanthology.org/2021.wanlp-1.9/}
}

References

22 references, 2 of them with a card of ours. ↗ leads to the work, «find» searches for one we have no id for yet.

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