Journal ArticleDOI
Emotions in text: dimensional and categorical models
Rafael A. Calvo,Sunghwan Mac Kim +1 more
- Vol. 29, Iss: 3, pp 527-543
TLDR
A new way of using normative databases as a way of processing text with a dimensional model and compare it with different categorical approaches is introduced and shows that the categorical model using NMF and the dimensional model tend to perform best.Abstract:
Text often expresses the writer's emotional state or evokes emotions in the reader. The nature of emotional phenomena like reading and writing can be interpreted in different ways and represented with different computational models. Affective computing (AC) researchers often use a categorical model in which text data are associated with emotional labels. We introduce a new way of using normative databases as a way of processing text with a dimensional model and compare it with different categorical approaches. The approach is evaluated using four data sets of texts reflecting different emotional phenomena. An emotional thesaurus and a bag-of-words model are used to generate vectors for each pseudo-document, then for the categorical models three dimensionality reduction techniques are evaluated: Latent Semantic Analysis (LSA), Probabilistic Latent Semantic Analysis (PLSA), and Non-negative Matrix Factorization (NMF). For the dimensional model a normative database is used to produce three-dimensional vectors (valence, arousal, dominance) for each pseudo-document. This three-dimensional model can be used to generate psychologically driven visualizations. Both models can be used for affect detection based on distances amongst categories and pseudo-documents. Experiments show that the categorical model using NMF and the dimensional model tend to perform best.read more
Citations
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Journal ArticleDOI
Emotion and sentiment analysis from Twitter text
TL;DR: The target of the work described in this paper is to detect and analyze sentiment and emotion expressed by people from text in their twitter posts and use them for generating recommendations.
Journal ArticleDOI
Natural language processing in mental health applications using non-clinical texts†
TL;DR: The overarching aim of this scoping review is to highlight areas of research where NLP has been applied in the mental health literature and to help develop a common language that draws together the fields of mental health, human-computer interaction and NLP.
Proceedings ArticleDOI
EmoBank: Studying the Impact of Annotation Perspective and Representation Format on Dimensional Emotion Analysis
Sven Buechel,Udo Hahn +1 more
TL;DR: EmoBank, a corpus of 10k English sentences balancing multiple genres, is described, which is annotated with dimensional emotion metadata in the Valence-Arousal-Dominance (VAD) representation format and achieves close-to-human performance when mapping between dimensional and categorical formats.
Journal ArticleDOI
Emotion detection from text and speech: a survey
TL;DR: Existing emotion detection research efforts, emotion models, emotion datasets, emotion detection techniques, their features, limitations and some possible future directions are reviewed, focusing on reviewing research efforts analyzing emotions based on text and speech.
Journal ArticleDOI
Analytical mapping of opinion mining and sentiment analysis research during 2000–2015
TL;DR: A detailed analytical mapping of OMSA research work is presented and the progress of discipline on various useful parameters are charted.
References
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