GreekMMLU / README.md
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---
language:
- el
tags:
- mmlu
- greek
- evaluation
- exam
license: mit
task_categories:
- question-answering
- multiple-choice
pretty_name: Greek MMLU Parquet
configs:
- config_name: Accounting
data_files:
- split: test
path: Accounting/test-*
- split: dev
path: Accounting/dev-*
- config_name: Agriculture_Professional
data_files:
- split: test
path: Agriculture_Professional/test-*
- split: dev
path: Agriculture_Professional/dev-*
- config_name: Agriculture_University
data_files:
- split: test
path: Agriculture_University/test-*
- split: dev
path: Agriculture_University/dev-*
- config_name: All
data_files:
- split: test
path: All/test-*
- split: dev
path: All/dev-*
- config_name: Art_Professional
data_files:
- split: test
path: Art_Professional/test-*
- split: dev
path: Art_Professional/dev-*
- config_name: Art_Secondary_School
data_files:
- split: test
path: Art_Secondary_School/test-*
- split: dev
path: Art_Secondary_School/dev-*
- config_name: Art_University
data_files:
- split: test
path: Art_University/test-*
- split: dev
path: Art_University/dev-*
- config_name: Biology
data_files:
- split: test
path: Biology/test-*
- split: dev
path: Biology/dev-*
- config_name: Chemistry
data_files:
- split: test
path: Chemistry/test-*
- split: dev
path: Chemistry/dev-*
- config_name: Civil_Engineering
data_files:
- split: test
path: Civil_Engineering/test-*
- split: dev
path: Civil_Engineering/dev-*
- config_name: Clinical_Knowledge
data_files:
- split: test
path: Clinical_Knowledge/test-*
- split: dev
path: Clinical_Knowledge/dev-*
- config_name: Computer_Networks_and_Security
data_files:
- split: test
path: Computer_Networks_and_Security/test-*
- split: dev
path: Computer_Networks_and_Security/dev-*
- config_name: Computer_Science_Professional
data_files:
- split: test
path: Computer_Science_Professional/test-*
- split: dev
path: Computer_Science_Professional/dev-*
- config_name: Computer_Science_University
data_files:
- split: test
path: Computer_Science_University/test-*
- split: dev
path: Computer_Science_University/dev-*
- config_name: Driving_Rules
data_files:
- split: test
path: Driving_Rules/test-*
- split: dev
path: Driving_Rules/dev-*
- config_name: Economics_Professional
data_files:
- split: test
path: Economics_Professional/test-*
- split: dev
path: Economics_Professional/dev-*
- config_name: Economics_University
data_files:
- split: test
path: Economics_University/test-*
- split: dev
path: Economics_University/dev-*
- config_name: Education_Professional
data_files:
- split: test
path: Education_Professional/test-*
- split: dev
path: Education_Professional/dev-*
- config_name: Education_University
data_files:
- split: test
path: Education_University/test-*
- split: dev
path: Education_University/dev-*
- config_name: Electrical_Engineering
data_files:
- split: test
path: Electrical_Engineering/test-*
- split: dev
path: Electrical_Engineering/dev-*
- config_name: General_Knowledge
data_files:
- split: test
path: General_Knowledge/test-*
- split: dev
path: General_Knowledge/dev-*
- config_name: Geography_Primary_School
data_files:
- split: test
path: Geography_Primary_School/test-*
- split: dev
path: Geography_Primary_School/dev-*
- config_name: Geography_Secondary_School
data_files:
- split: test
path: Geography_Secondary_School/test-*
- split: dev
path: Geography_Secondary_School/dev-*
- config_name: Government_and_Politics_Primary_School
data_files:
- split: test
path: Government_and_Politics_Primary_School/test-*
- split: dev
path: Government_and_Politics_Primary_School/dev-*
- config_name: Government_and_Politics_Secondary_School
data_files:
- split: test
path: Government_and_Politics_Secondary_School/test-*
- split: dev
path: Government_and_Politics_Secondary_School/dev-*
- config_name: Greek_History_Primary_School
data_files:
- split: test
path: Greek_History_Primary_School/test-*
- split: dev
path: Greek_History_Primary_School/dev-*
- config_name: Greek_History_Professional
data_files:
- split: test
path: Greek_History_Professional/test-*
- split: dev
path: Greek_History_Professional/dev-*
- config_name: Greek_History_Secondary_School
data_files:
- split: test
path: Greek_History_Secondary_School/test-*
- split: dev
path: Greek_History_Secondary_School/dev-*
- config_name: Greek_Literature
data_files:
- split: test
path: Greek_Literature/test-*
- split: dev
path: Greek_Literature/dev-*
- config_name: Greek_Mythology
data_files:
- split: test
path: Greek_Mythology/test-*
- split: dev
path: Greek_Mythology/dev-*
- config_name: Greek_Traditions
data_files:
- split: test
path: Greek_Traditions/test-*
- split: dev
path: Greek_Traditions/dev-*
- config_name: Law
data_files:
- split: test
path: Law/test-*
- split: dev
path: Law/dev-*
- config_name: Management_Professional
data_files:
- split: test
path: Management_Professional/test-*
- split: dev
path: Management_Professional/dev-*
- config_name: Management_University
data_files:
- split: test
path: Management_University/test-*
- split: dev
path: Management_University/dev-*
- config_name: Maritime_Safety_and_Rescue_Operations
data_files:
- split: test
path: Maritime_Safety_and_Rescue_Operations/test-*
- split: dev
path: Maritime_Safety_and_Rescue_Operations/dev-*
- config_name: Mathematics
data_files:
- split: test
path: Mathematics/test-*
- split: dev
path: Mathematics/dev-*
- config_name: Medicine_Professional
data_files:
- split: test
path: Medicine_Professional/test-*
- split: dev
path: Medicine_Professional/dev-*
- config_name: Medicine_University
data_files:
- split: test
path: Medicine_University/test-*
- split: dev
path: Medicine_University/dev-*
- config_name: Modern_Greek_Language_Primary_School
data_files:
- split: test
path: Modern_Greek_Language_Primary_School/test-*
- split: dev
path: Modern_Greek_Language_Primary_School/dev-*
- config_name: Modern_Greek_Language_Secondary_School
data_files:
- split: test
path: Modern_Greek_Language_Secondary_School/test-*
- split: dev
path: Modern_Greek_Language_Secondary_School/dev-*
- config_name: Physics_Primary_School
data_files:
- split: test
path: Physics_Primary_School/test-*
- split: dev
path: Physics_Primary_School/dev-*
- config_name: Physics_Professional
data_files:
- split: test
path: Physics_Professional/test-*
- split: dev
path: Physics_Professional/dev-*
- config_name: Physics_University
data_files:
- split: test
path: Physics_University/test-*
- split: dev
path: Physics_University/dev-*
- config_name: Prehistory
data_files:
- split: test
path: Prehistory/test-*
- split: dev
path: Prehistory/dev-*
- config_name: World_History
data_files:
- split: test
path: World_History/test-*
- split: dev
path: World_History/dev-*
- config_name: World_Religions
data_files:
- split: test
path: World_Religions/test-*
- split: dev
path: World_Religions/dev-*
dataset_info:
- config_name: Accounting
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 80897
num_examples: 184
- name: dev
num_bytes: 2155
num_examples: 5
download_size: 37423
dataset_size: 83052
- config_name: Agriculture_Professional
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 172831
num_examples: 339
- name: dev
num_bytes: 2426
num_examples: 5
download_size: 73721
dataset_size: 175257
- config_name: Agriculture_University
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 43129
num_examples: 70
- name: dev
num_bytes: 3450
num_examples: 5
download_size: 25668
dataset_size: 46579
- config_name: All
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 8888505
num_examples: 16632
- name: dev
num_bytes: 115031
num_examples: 225
download_size: 3653532
dataset_size: 9003536
- config_name: Art_Professional
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 208664
num_examples: 600
- name: dev
num_bytes: 1355
num_examples: 5
download_size: 85278
dataset_size: 210019
- config_name: Art_Secondary_School
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 13992
num_examples: 39
- name: dev
num_bytes: 1661
num_examples: 5
download_size: 14339
dataset_size: 15653
- config_name: Art_University
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 6510
num_examples: 12
- name: dev
num_bytes: 3435
num_examples: 5
download_size: 10577
dataset_size: 9945
- config_name: Biology
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 152101
num_examples: 418
- name: dev
num_bytes: 1994
num_examples: 5
download_size: 70481
dataset_size: 154095
- config_name: Chemistry
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 24057
num_examples: 81
- name: dev
num_bytes: 1309
num_examples: 5
download_size: 17072
dataset_size: 25366
- config_name: Civil_Engineering
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 297678
num_examples: 769
- name: dev
num_bytes: 2703
num_examples: 5
download_size: 110137
dataset_size: 300381
- config_name: Clinical_Knowledge
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 247231
num_examples: 633
- name: dev
num_bytes: 1665
num_examples: 5
download_size: 88965
dataset_size: 248896
- config_name: Computer_Networks_and_Security
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 49424
num_examples: 86
- name: dev
num_bytes: 3157
num_examples: 5
download_size: 31784
dataset_size: 52581
- config_name: Computer_Science_Professional
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 114631
num_examples: 254
- name: dev
num_bytes: 2659
num_examples: 5
download_size: 55238
dataset_size: 117290
- config_name: Computer_Science_University
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
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num_examples: 104
- name: dev
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num_examples: 5
download_size: 26771
dataset_size: 50269
- config_name: Driving_Rules
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
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- name: level
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splits:
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- name: dev
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download_size: 369588
dataset_size: 849497
- config_name: Economics_Professional
features:
- name: question
dtype: string
- name: choices
sequence: string
- name: answer
dtype: int64
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- name: subject
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- name: level
dtype: string
splits:
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- name: dev
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num_examples: 5
download_size: 54930
dataset_size: 128155
- config_name: Economics_University
features:
- name: question
dtype: string
- name: choices
list: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
num_bytes: 34202
num_examples: 86
- name: dev
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num_examples: 5
download_size: 20820
dataset_size: 35941
- config_name: Education_Professional
features:
- name: question
dtype: string
- name: choices
list: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
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- name: level
dtype: string
splits:
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- name: dev
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num_examples: 5
download_size: 51837
dataset_size: 124301
- config_name: Education_University
features:
- name: question
dtype: string
- name: choices
list: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
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- name: dev
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num_examples: 5
download_size: 22317
dataset_size: 31696
- config_name: Electrical_Engineering
features:
- name: question
dtype: string
- name: choices
list: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
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- name: dev
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num_examples: 5
download_size: 86302
dataset_size: 229814
- config_name: General_Knowledge
features:
- name: question
dtype: string
- name: choices
list: string
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splits:
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- name: dev
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dataset_size: 153862
- config_name: Geography_Primary_School
features:
- name: question
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list: string
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- name: subject
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- config_name: Geography_Secondary_School
features:
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- name: dev
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dataset_size: 18008
- config_name: Government_and_Politics_Primary_School
features:
- name: question
dtype: string
- name: choices
list: string
- name: answer
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- name: subject
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- name: level
dtype: string
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- name: dev
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- config_name: Government_and_Politics_Secondary_School
features:
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list: string
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- name: dev
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- config_name: Greek_History_Primary_School
features:
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list: string
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- config_name: Greek_History_Professional
features:
- name: question
dtype: string
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list: string
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splits:
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- name: dev
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dataset_size: 61039
- config_name: Greek_History_Secondary_School
features:
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list: string
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splits:
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- name: dev
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dataset_size: 32011
- config_name: Greek_Literature
features:
- name: question
dtype: string
- name: choices
list: string
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- name: subject
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splits:
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- name: dev
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- config_name: Greek_Mythology
features:
- name: question
dtype: string
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list: string
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splits:
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- name: dev
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- config_name: Greek_Traditions
features:
- name: question
dtype: string
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list: string
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- name: subject
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- name: test
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- name: dev
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dataset_size: 157235
- config_name: Law
features:
- name: question
dtype: string
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list: string
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- name: subject
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- config_name: Management_Professional
features:
- name: question
dtype: string
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list: string
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splits:
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dataset_size: 245890
- config_name: Management_University
features:
- name: question
dtype: string
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list: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
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num_examples: 25
- name: dev
num_bytes: 1940
num_examples: 5
download_size: 12448
dataset_size: 11383
- config_name: Maritime_Safety_and_Rescue_Operations
features:
- name: question
dtype: string
- name: choices
list: string
- name: answer
dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
- name: level
dtype: string
splits:
- name: test
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num_examples: 148
- name: dev
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num_examples: 5
download_size: 34826
dataset_size: 80157
- config_name: Mathematics
features:
- name: question
dtype: string
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list: string
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dtype: int64
- name: group
dtype: string
- name: subject
dtype: string
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splits:
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num_examples: 5
download_size: 119229
dataset_size: 279901
- config_name: Medicine_Professional
features:
- name: question
dtype: string
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list: string
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dtype: int64
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dtype: string
- name: subject
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splits:
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dataset_size: 220059
- config_name: Medicine_University
features:
- name: question
dtype: string
- name: choices
list: string
- name: answer
dtype: int64
- name: group
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---
![image](https://cdn-uploads.huggingface.co/production/uploads/682b190a4c3daf53d9661890/8qaw4K9rpccm5JUjFEyJf.png)
# GreekMMLU
GreekMMLU is a native-sourced benchmark for evaluating massive multitask language understanding in Greek, built from authentic Greek exam-style multiple-choice questions (MCQ) rather than machine-translated English benchmarks.
* **21,805 questions across 45 subjects**
* **4 high-level groups: STEM, Humanities, Social Sciences, Other**
* **Difficulty/education levels spanning Primary → Secondary → University → Professional (+ an N/A bucket)**
* **Public vs. private split for contamination-resistant evaluation: 16,857 public/4,948 private (leaderboard)**
## Structure
- **Configs**: Each subject is a separate configuration (subset).
- **Splits**:
- `test`: Public test set (High volume)
- `dev`: Dev/Few-shot set (5-shot)
## Usage
```python
from datasets import load_dataset
# Load specific subject
ds = load_dataset("dascim/GreekMMLU", "Agriculture_Professional")
# Load all data combined
ds = load_dataset("dascim/GreekMMLU", "All")
```
## Links
* **Our paper: https://www.arxiv.org/abs/2602.05150**
* **GitHub: https://github.com/mersinkonomi/GreekMMLU**
* **Private leaderboard: https://huggingface.co/spaces/yangzhang33/GreekMMLU-Leaderboard**
## What makes GreekMMLU different?
Most “Greek MMLU” style evaluations rely on machine translation from English. Instead, GreekMMLU uses original Greek content sourced or authored from real educational/professional assessments, aiming to preserve:
* **Greek morphology and punctuation**
* **Greek-specific cultural/institutional knowledge (e.g., Greek History, Greek Traditions)**
* **Realistic exam difficulty calibration**
## Task format
Multiple choice, 2–4 options, exactly one correct.
The harness prompt uses Greek option labels (Α, Β, Γ, Δ) for a fully native evaluation setup.
## Subjects (high-level)
GreekMMLU includes 45 subjects, grouped into:
* **Humanities** (e.g., Art; Greek History; Greek Literature; Greek Mythology; Law; World Religions)
* **STEM** (e.g., Mathematics; Physics; Computer Science; Electrical Engineering; Medicine)
* **Social Sciences** (e.g., Economics; Education; Government & Politics; Modern Greek Language; Accounting)
* **Other** (e.g., Driving Rules; General Knowledge; Maritime Safety and Rescue Operations)
See the paper for the full taxonomy and educational-level breakdown.
## Citation
If you use GreekMMLU in your work, please cite the paper:
```bibtex
@article{zhang2026greekmmlu,
title={GreekMMLU: A Native-Sourced Multitask Benchmark for Evaluating Language Models in Greek},
author={Zhang, Yang and Konomi, Mersin and Xypolopoulos, Christos and Divriotis, Konstantinos and Skianis, Konstantinos and Nikolentzos, Giannis and Stamou, Giorgos and Shang, Guokan and Vazirgiannis, Michalis},
journal={arXiv preprint arXiv:2602.05150},
year={2026}
}
```