News

ISEAR Emotion Dataset and Classifier Model Released on HuggingFace

Nov 07, 2025

We've released our ISEAR based emotion classifier and dataset to support research on emotional expression and to enable human centered applications.

The ISEAR data was collected through questionnaires administered to university students in 37 countries between the 1980s and the early 1990s by Klaus R. Scherer (University of Geneva) and Harald G. Wallbott (University of Salzburg). Respondents were asked to recall experiences of seven fundamental emotions and answer detailed questions about their reactions and appraisals.

Classification

We released our version of the dataset and trained an emotion classifier to support use cases that involve research or the creation of more human AI systems.

These use cases may include emotional expression research, healthcare applications for mental health support, and technology-supported team coaching programs.

The classifier's input is the natural language description of a situation (SIT) and the output is the classification into one of seven labels:

LabelEmotionDefinition
0JoyHappiness, pleasure, or satisfaction
1FearAnxiety about threat or danger
2AngerStrong displeasure or antagonism
3SadnessFeeling of loss or disadvantage
4DisgustAversion or revulsion
5ShameEmbarrassment or humiliation
6GuiltFeeling responsible for wrongdoing

The model is best suited for scenarios where an approximation of human emotions is desirable based on a situation description.

The dataset

The ISEAR (International Survey on Emotion Antecedents and Reactions) dataset contains 7,666 personal accounts of emotional experiences collected by psychologists Klaus R. Scherer and Harald G. Wallbott as part of a large-scale international study of emotions. Respondents from 37 countries were asked to describe situations where they experienced specific emotions (joy, fear, anger, sadness, disgust, shame, or guilt), along with detailed information about their reactions and appraisals.

Our dataset is a cleaned version of the original ISEAR questionnaire data, prepared for natural language processing and emotion classification tasks.

Ethical considerations and restrictions

The dataset and the model are released under Apache License 2.0.

We published this dataset and model with appropriate ethical guidelines that are available on the dataset card and model card, respectively.

This dataset should not be used for commercial emotion categorization systems to infer the emotions of a natural person.

Model availability

Dataset link on HuggingFace: savalera/isear-from-original

Model link on HuggingFace: savalera/isear-emotion-classifier

References

Official dataset source: Geneva Emotion Research Group

Scherer, K. R., & Wallbott, H. G. (1994). Evidence for universality and cultural variation of differential emotion response patterning. Journal of Personality and Social Psychology, 66(2), 310–328.