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NADI 2021: The Second Nuanced Arabic Dialect Identification Shared Task

arXiv 2103.08466 ↗First posted 4 Mar 2021cs.CLcited by 32

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Abstract (arXiv)

We present the findings and results of the Second Nuanced Arabic Dialect Identification Shared Task (NADI 2021). This Shared Task includes four subtasks: country-level Modern Standard Arabic (MSA) identification (Subtask 1.1), country-level dialect identification (Subtask 1.2), province-level MSA identification (Subtask 2.1), and province-level sub-dialect identification (Subtask 2.2). The shared task dataset covers a total of 100 provinces from 21 Arab countries, collected from the Twitter domain. A total of 53 teams from 23 countries registered to participate in the tasks, thus reflecting the interest of the community in this area. We received 16 submissions for Subtask 1.1 from five teams, 27 submissions for Subtask 1.2 from eight teams, 12 submissions for Subtask 2.1 from four teams, and 13 Submissions for subtask 2.2 from four teams.

Key facts. Cited by 32 papers in the map (data through 7 Oct 2026). Builds on 10 of its 47 references that are in the map. First posted on arXiv 4 Mar 2021.

Builds on

10 of 47 references.

References · 10

  1. 2019Parameter-Efficient Transfer Learning for NLPcited by 4,195
  2. 2020AraBERT: Transformer-based Model for Arabic Language Understandingcited by 359
  3. 2020ARBERT & MARBERT: Deep Bidirectional Transformers for Arabiccited by 164
  4. 2020NADI 2020: The First Nuanced Arabic Dialect Identification Shared Taskcited by 47
  5. 2020AraELECTRA: Pre-Training Text Discriminators for Arabic Language Understandingcited by 43
  6. 2018Arap-Tweet: A Large Multi-Dialect Twitter Corpus for Gender, Age and Language Variety Identificationcited by 23
  7. 2016A Large Scale Corpus of Gulf Arabiccited by 17
  8. 2020Automatic Arabic Dialect Identification Systems for Written Texts: A Surveycited by 10
  9. 2021Adapting MARBERT for Improved Arabic Dialect Identification: Submission to the NADI 2021 Shared Taskcited by 4
  10. 2021Dialect Identification in Nuanced Arabic Tweets Using Farasa Segmentation and AraBERTcited by 1

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Cited by year (2026 to 7 Oct)

Citing papers per year: 2021: 4; 2022: 7; 2023: 7; 2024: 5; 2025: 4; 2026: 5.

32 papers.

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  1. 2024Natural Language Processing for Dialects of a Language: A Surveycited by 40
  2. 2023NADI 2023: The Fourth Nuanced Arabic Dialect Identification Shared Taskcited by 29
  3. 2023ALDi: Quantifying the Arabic Level of Dialectness of Textcited by 24
  4. 2022NADI 2022: The Third Nuanced Arabic Dialect Identification Shared Taskcited by 23
  5. 2024NADI 2024: The Fifth Nuanced Arabic Dialect Identification Shared Taskcited by 23
  6. 2023Arabic Dialect Identification under Scrutiny: Limitations of Single-label Classificationcited by 13
  7. 2022JASMINE: Arabic GPT Models for Few-Shot Learningcited by 11
  8. 2023Nabra: Syrian Arabic Dialects with Morphological Annotationscited by 11
  9. 2022Camelira: An Arabic Multi-Dialect Morphological Disambiguatorcited by 10
  10. 2024Swan and ArabicMTEB: Dialect-Aware, Arabic-Centric, Cross-Lingual, and Cross-Cultural Embedding Models and Benchmarkscited by 10
  11. 2022Lisan: Yemeni, Iraqi, Libyan, and Sudanese Arabic Dialect Copora with Morphological Annotationscited by 9
  12. 2021BERT-based Multi-Task Model for Country and Province Level Modern Standard Arabic and Dialectal Arabic Identificationcited by 7
20 more
  1. 2024Exploiting Dialect Identification in Automatic Dialectal Text Normalizationcited by 7
  2. 2025NADI 2025: The First Multidialectal Arabic Speech Processing Shared Taskcited by 7
  3. 2025DialectalArabicMMLU: Benchmarking Dialectal Capabilities in Arabic and Multilingual Language Modelscited by 6
  4. 2021Similarities between Arabic Dialects: Investigating Geographical Proximitycited by 5
  5. 2021Supporting Undotted Arabic with Pre-trained Language Modelscited by 4
  6. 2023VoxArabica: A Robust Dialect-Aware Arabic Speech Recognition Systemcited by 3
  7. 2023USTHB at NADI 2023 shared task: Exploring Preprocessing and Feature Engineering Strategies for Arabic Dialect Identificationcited by 3
  8. 2022A Benchmark Study of Contrastive Learning for Arabic Social Meaningcited by 2
  9. 2022Maknuune: A Large Open Palestinian Arabic Lexiconcited by 2
  10. 2025Revisiting Common Assumptions about Arabic Dialects in NLPcited by 2
  11. 2021sarcasm detection and quantification in arabic tweetscited by 1
  12. 2022The Shared Task on Gender Rewritingcited by 1
  13. 2025The Arabic Generality Score: Another Dimension of Modeling Arabic Dialectnesscited by 1
  14. 2023Mavericks at NADI 2023 Shared Task: Unravelling Regional Nuances through Dialect Identification using Transformer-based Approachcited by 0
  15. 2024dzNLP at NADI 2024 Shared Task: Multi-Classifier Ensemble with Weighted Voting and TF-IDF Featurescited by 0
  16. 2026Curriculum Learning and Pseudo-Labeling Improve the Generalization of Multi-Label Arabic Dialect Identification Modelscited by 0
  17. 2026NLP Privacy Risk Identification in Social Media (NLP-PRISM): A Surveycited by 0
  18. 2026Cultural Benchmarking of LLMs in Standard and Dialectal Arabic Dialoguescited by 0
  19. 2026The Generator-Eraser Paradox: Community Guidelines for Responsible LLM-Assisted Dialect Resource Creationcited by 0
  20. 2026NADI 2026: The Second Multidialectal Arabic Speech Processing Shared Taskcited by 0