Datasets:
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---
license: apache-2.0
task_categories:
- text-generation
language:
- en
tags:
- data-juicer
- pretraining
size_categories:
- 10M<n<100M
---
# RedPajama & The Pile -- StackExchange (refined by Data-Juicer)
A refined version of StackExchange dataset in RedPajama & The Pile by [Data-Juicer](https://github.com/alibaba/data-juicer). Removing some "bad" samples from the original merged dataset to make it higher-quality.
This dataset is usually used to pretrain a Large Language Model.
**Notice**: Here is a small subset for previewing. The whole dataset is available [here](https://dail-wlcb.oss-cn-wulanchabu.aliyuncs.com/LLM_data/our_refined_datasets/pretraining/redpajama-pile-stackexchange-refine-result.jsonl) (About 71GB).
## Dataset Information
- Number of samples: 26,309,203 (Keep ~57.89% from the original dataset)
## Refining Recipe
```yaml
# global parameters
project_name: 'Data-Juicer-stack-exchange'
dataset_path: '/path/to/your/dataset' # path to your dataset directory or file
export_path: '/path/to/your/dataset.jsonl'
np: 50 # number of subprocess to process your dataset
open_tracer: true
# process schedule
# a list of several process operators with their arguments
process:
- clean_email_mapper:
- clean_links_mapper:
- fix_unicode_mapper:
- punctuation_normalization_mapper:
- whitespace_normalization_mapper:
- alphanumeric_filter:
tokenization: false
min_ratio: 0.35 # <3sigma
max_ratio: 0.943 # 3sigma
- average_line_length_filter: # for code
min_len: 20 # >3sigma
max_len: 400 # >3sigma
- character_repetition_filter:
rep_len: 10
max_ratio: 0.4 # >3sigma (0.12)
- flagged_words_filter:
lang: en
tokenization: true
max_ratio: 0.01 # >3sigma
- language_id_score_filter: # remove language filter
min_score: 0.1 # <3sigma
- maximum_line_length_filter: # for code
min_len: 80
- perplexity_filter:
lang: en
max_ppl: 10000 # >3sigma
- special_characters_filter:
min_ratio: 0.232 # 3sigma
max_ratio: 0.7 # >3sigma
- text_length_filter:
min_len: 200
- words_num_filter:
lang: en
tokenization: true
min_num: 100
- word_repetition_filter:
lang: en
tokenization: true
rep_len: 10
max_ratio: 0.8 # >3sigma
- document_simhash_deduplicator: #26309203 left
tokenization: space
window_size: 3
lowercase: true
ignore_pattern: '\n\n'
num_blocks: 9
hamming_distance: 7
``` |