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Computación y Sistemas
versión On-line ISSN 2007-9737versión impresa ISSN 1405-5546
Resumen
MATSUMOTO, Kazuyuki; MATSUNAGA, Takumi; YOSHIDA, Minoru y KITA, Kenji. Emotional Similarity Word Embedding Model for Sentiment Analysis. Comp. y Sist. [online]. 2022, vol.26, n.2, pp.875-886. Epub 10-Mar-2023. ISSN 2007-9737. https://doi.org/10.13053/cys-26-2-4266.
We propose a method for constructing a dictionary of emotional expressions, which is an indispensable language resource for sentiment analysis in the Japanese. Furthermore, we propose a method for constructing a language model that reproduces emotional similarity between words, which to date has yet not been considered in conventional dictionaries and language models. In the proposed method, we pre-trained sentiment labels for the distributed representations of words. An intermediate feature vector was obtained from the pre-trained model. By learning an additional semantic label on this feature vector, we can construct an emotional semantic language model that embeds both emotion and semantics. To confirm the effectiveness of the proposed method, we conducted a simple experiment to retrieve similar emotional words using the constructed model. The results of this experiment showed that the proposed method can retrieve similar emotional words with higher accuracy than the conventional word-embedding model.
Palabras llave : Emotion recognition; emotional similarity; neural networks.