README.md

---
license: cc-by-nc-sa-4.0
task_categories:
  - text-classification
language:
  - bn
tags:
  - hate-speech-classification
  - text-classification
pretty_name: 'BanglaMultiHate: Multi-task Bangla Hate-speech Dataset'
size_categories:
  - 10K<n<100K
dataset_info:
  - config_name: BanglaMultiHate
    splits:
      - name: train
        num_examples: 35522
      - name: dev
        num_examples: 5024
      - name: test
        num_examples: 10200
configs:
  - config_name: BanglaMultiHate
    data_files:
      - split: train
        path: data/train.json
      - split: dev
        path: data/dev.json
      - split: test
        path: data/test.json
---


# BanglaMultiHate: Multi-task Bangla Hate-speech Dataset

The *BanglaMultiHate* dataset collected public comments from YouTube videos using the YouTube API, primarily from Somoy TV, which is a popular Bangla News channel. The comments belong to 19 different categories, including Business, Celebrities, Disaster, Entertainment, Fashion, Geopolitics, Health, History, International, Lifestyle, Literature, Miscellaneous, National, Opinion, Politics, Religion, Science, Sports, and Technology, as well as 120 subcategories.
The annotation agreement of this manually annotated dataset shows agreement scores of $0.71$, $0.84$, and $0.79$ for the type of hate, severity of hate, and target of hate tasks, respectively, indicating substantial to perfect agreement.

### Shared Task: [Bangla Hate Speech Identification](https://github.com/AridHasan/blp25_task1)
Check our shared task on this dataset: https://github.com/AridHasan/blp25_task1

## Dataset

 - [training set](./data/train.json)
 - [development set](./data/dev.json)
 - [test set](./data/test.json)

#### Data format
Each file uses the json format. A json object within the list of objects adheres to the following structure:

```
{
   "id": "",
   "comment": "",
   "category": "",
   "subcategory": "",
   "type_of_hate": "",
   "severity_of_hate": "",
   "target_of_hate": ""
}
```
Where:
* id: an index or id of the text
* comment: text
* category: a category
* subcategory: a subcategory
* hate_type: _Abusive_, _Sexism_, _Religious Hate_, _Political Hate_, _Profane_, or _None_.
* hate_severity: _Little to None_, _Mild_, or _Severe_.
* to_whom: _Individuals_, _Organizations_, _Communities_, or _Society_.


##### Example
```
{
   "id": "490273",
   "comment": "আওয়ামী লীগের সন্ত্রাসী কবে দরবেন এই সাহস আপনাদের নাই",
   "category": "National",
   "subcategory": "বাংলার সময়",
   "type_of_hate": "Political Hate",
   "severity_of_hate": "Little to None",
   "target_of_hate": "Organization"
}
```

### How to download data

```
import os
import json
from datasets import load_dataset

output_dir="./BanglaMultiHate/"
 
dataset = load_dataset("AridHasan/BanglaMultiHate")
# Save the dataset to the specified directory. This will save all splits to the output directory.
dataset.save_to_disk(output_dir)
# iterate over splits to save the data into json format
for split in ['train','dev','test']:
    data = []
    if split not in dataset:
        continue
    for idx, item in enumerate(dataset[split]):
        data.append(item)
    output_file = os.path.join(output_dir, f"{split}.json")
    with open(output_file, 'w', encoding='utf-8') as f:
        json.dump(data, f, ensure_ascii=False, indent=4)
```



## Citation

```
@article{hasan2025llm,
      title={LLM-Based Multi-Task Bangla Hate Speech Detection: Type, Severity, and Target}, 
      author={Hasan, Md Arid and Alam, Firoj and Hossain, Md Fahad and Naseem, Usman and Ahmed, Syed Ishtiaque},
      year={2025},
      journal={arXiv preprint arXiv:2510.01995},
      url={https://arxiv.org/abs/2510.01995},
}

@inproceedings{blp2025-overview-task1,
    title = "Overview of BLP 2025 Task 1: Bangla Hate Speech Identification",
    author = "Hasan, Md Arid and Alam, Firoj and Hossain, Md Fahad and Naseem, Usman and Ahmed, Syed Ishtiaque",
    booktitle = "Proceedings of the Second International Workshop on Bangla Language Processing (BLP-2025)",
    editor = {Alam, Firoj
          and Kar, Sudipta
          and Chowdhury, Shammur Absar
          and Hassan, Naeemul
          and Prince, Enamul Hoque
          and Tasnim, Mohiuddin
          and Rony, Md Rashad Al Hasan,
          and Rahman, Md Tahmid Rahman
    },
    month = dec,
    year = "2025",
    address = "India",
    publisher = "Association for Computational Linguistics",
}
```


## License
*BanglaMultiHate* is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

You should have received a copy of the license along with this work. If not, see [http://creativecommons.org/licenses/by-nc-sa/4.0/](http://creativecommons.org/licenses/by-nc-sa/4.0/).