nlptown_bert-base-multilingual-uncased-sentiment

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language:

• en
• nl
• de
• fr
• it
• es

license: mit

bert-base-multilingual-uncased-sentiment

Visit the NLP Town website for an updated version of this model, with a 40% error reduction on product reviews.

This is a bert-base-multilingual-uncased model finetuned for sentiment analysis on product reviews in six languages: English, Dutch, German, French, Spanish, and Italian. It predicts the sentiment of the review as a number of stars (between 1 and 5).

This model is intended for direct use as a sentiment analysis model for product reviews in any of the six languages above or for further finetuning on related sentiment analysis tasks.

Training data

Here is the number of product reviews we used for finetuning the model:

Language	Number of reviews
English	150k
Dutch	80k
German	137k
French	140k
Italian	72k
Spanish	50k

Accuracy

The fine-tuned model obtained the following accuracy on 5,000 held-out product reviews in each of the languages:

• Accuracy (exact) is the exact match for the number of stars.
• Accuracy (off-by-1) is the percentage of reviews where the number of stars the model predicts differs by a maximum of 1 from the number given by the human reviewer.

Language	Accuracy (exact)	Accuracy (off-by-1)
English	67%	95%
Dutch	57%	93%
German	61%	94%
French	59%	94%
Italian	59%	95%
Spanish	58%	95%

Contact

In addition to this model, NLP Town offers custom models for many languages and NLP tasks.

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Feel free to contact us for questions, feedback and/or requests for similar models.