Deceptive Opinion Spam Corpus v1.4


This corpus consists of truthful and deceptive hotel reviews of 20 Chicago hotels. The data is described in two papers according to the sentiment of the review. In particular, we discuss positive sentiment reviews in [1] and negative sentiment reviews in [2].

While we have tried to maintain consistent data preprocessing procedures across the data, there are differences which are explained in more detail in the associated papers. Please see those papers for specific details.

This corpus contains:

Each of the above datasets consist of 20 reviews for each of the 20 most popular Chicago hotels (see [1] for more details). The files are named according to the following conventions:



This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. To view a copy of this license, visit or send a letter to Creative Commons, 444 Castro Street, Suite 900, Mountain View, California, 94041, USA.

If you use any of this data in your work, please cite the appropriate associated paper (described above).

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