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---
annotations_creators:
- expert-generated
language_creators:
- found
language:
- en
license:
- other
license_details: LDC User Agreement for Non-Members
multilinguality:
- monolingual
size_categories:
- 10K<n<100K
source_datasets:
- original
task_categories:
- text-generation
- fill-mask
task_ids:
- language-modeling
- masked-language-modeling
paperswithcode_id: null
pretty_name: Penn Treebank
dataset_info:
features:
- name: sentence
dtype: string
config_name: penn_treebank
splits:
- name: train
num_bytes: 5143706
num_examples: 42068
- name: test
num_bytes: 453710
num_examples: 3761
- name: validation
num_bytes: 403156
num_examples: 3370
download_size: 5951345
dataset_size: 6000572
---
# Dataset Card for Penn Treebank
## Table of Contents
- [Dataset Description](#dataset-description)
- [Dataset Summary](#dataset-summary)
- [Supported Tasks and Leaderboards](#supported-tasks-and-leaderboards)
- [Languages](#languages)
- [Dataset Structure](#dataset-structure)
- [Data Instances](#data-instances)
- [Data Fields](#data-fields)
- [Data Splits](#data-splits)
- [Dataset Creation](#dataset-creation)
- [Curation Rationale](#curation-rationale)
- [Source Data](#source-data)
- [Annotations](#annotations)
- [Personal and Sensitive Information](#personal-and-sensitive-information)
- [Considerations for Using the Data](#considerations-for-using-the-data)
- [Social Impact of Dataset](#social-impact-of-dataset)
- [Discussion of Biases](#discussion-of-biases)
- [Other Known Limitations](#other-known-limitations)
- [Additional Information](#additional-information)
- [Dataset Curators](#dataset-curators)
- [Licensing Information](#licensing-information)
- [Citation Information](#citation-information)
- [Contributions](#contributions)
## Dataset Description
- **Homepage:** https://catalog.ldc.upenn.edu/LDC99T42
- **Repository:** 'https://raw.githubusercontent.com/wojzaremba/lstm/master/data/ptb.train.txt',
'https://raw.githubusercontent.com/wojzaremba/lstm/master/data/ptb.valid.txt',
'https://raw.githubusercontent.com/wojzaremba/lstm/master/data/ptb.test.txt'
- **Paper:** https://www.aclweb.org/anthology/J93-2004.pdf
- **Leaderboard:** [Needs More Information]
- **Point of Contact:** [Needs More Information]
### Dataset Summary
This is the Penn Treebank Project: Release 2 CDROM, featuring a million words of 1989 Wall Street Journal material.
The rare words in this version are already replaced with <unk> token. The numbers are replaced with <N> token.
### Supported Tasks and Leaderboards
Language Modelling
### Languages
The text in the dataset is in American English
## Dataset Structure
### Data Instances
[Needs More Information]
### Data Fields
[Needs More Information]
### Data Splits
[Needs More Information]
## Dataset Creation
### Curation Rationale
[Needs More Information]
### Source Data
#### Initial Data Collection and Normalization
[Needs More Information]
#### Who are the source language producers?
[Needs More Information]
### Annotations
#### Annotation process
[Needs More Information]
#### Who are the annotators?
[Needs More Information]
### Personal and Sensitive Information
[Needs More Information]
## Considerations for Using the Data
### Social Impact of Dataset
[Needs More Information]
### Discussion of Biases
[Needs More Information]
### Other Known Limitations
[Needs More Information]
## Additional Information
### Dataset Curators
[Needs More Information]
### Licensing Information
Dataset provided for research purposes only. Please check dataset license for additional information.
### Citation Information
@article{marcus-etal-1993-building,
title = "Building a Large Annotated Corpus of {E}nglish: The {P}enn {T}reebank",
author = "Marcus, Mitchell P. and
Santorini, Beatrice and
Marcinkiewicz, Mary Ann",
journal = "Computational Linguistics",
volume = "19",
number = "2",
year = "1993",
url = "https://www.aclweb.org/anthology/J93-2004",
pages = "313--330",
}
### Contributions
Thanks to [@harshalmittal4](https://github.com/harshalmittal4) for adding this dataset. |