labr's Introduction

LABR: A Large-SCale Arabic Book Reviews Dataset

This dataset contains over 63,000 book reviews in Arabic. It is the largest sentiment analysis dataset for Arabic to-date. The book reviews were harvested from the website Goodreads during the month or March 2013. Each book review comes with the goodreads review id, the user id, the book id, the rating (1 to 5) and the text of the review.

README.txt: this file
data/
- reviews.tsv: a tab separated file containing the "cleaned up" reviews. It contains over 63,000 reviews. The format is:
```
             rating<TAB>review id<TAB>user id<TAB>book id<TAB>review
```
  where:
```
             rating: the user rating on a scale of 1 to 5
             review id: the goodreads.com review id
             user id: the goodreads.com user id
             book id: the goodreads.com book id
             review: the text of the review
```
- 2class-balanced-train/test.txt: text file containing indices of reviews (from the reviews.tsv file) that are in the training/test sets. Balanced means the number of reviews in the positive/negative classes are equal. The ratings are converted into positive (rating 4 & 5) and negative (rating 1 & 2) and rating 3 is ignored.
- 2class-unbalanced-train/test.txt: the same, but the sizes of the calsses are not equal.
- 5class-balanced/unbalanced-train/test.txt: the same, but for 5 classes instead of just 2.
python/
- labr.py: the main interface to the dataset. Contains functions that can read/write training and test sets.
- experiments_acl2013.py: a Python script containing the code used to generate the experiments in the reference ACL 2013 paper.
- demo.py: a simple demo file showing the usage of the dataset and class.