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Term weighting metrics assign weights to terms in order to discriminate the important terms from the less crucial ones. Due to this characteristic, these metrics have attracted growing attention in text classification and recently in…

Computation and Language · Computer Science 2016-10-12 Hussam Hamdan , Patrice Bellot , Frederic Bechet

Keyphrase extraction is a textual information processing task concerned with the automatic extraction of representative and characteristic phrases from a document that express all the key aspects of its content. Keyphrases constitute a…

Computation and Language · Computer Science 2019-07-31 Eirini Papagiannopoulou , Grigorios Tsoumakas

This work proposes an LSTM-based sentiment classification model with multi-head attention mechanism and TF-IDF optimization. Through the integration of TF-IDF feature extraction and multi-head attention, the model significantly improves…

Computation and Language · Computer Science 2025-03-12 Jingyuan Yi , Peiyang Yu , Tianyi Huang , Xiaochuan Xu

Sentiment analysis is a research topic focused on analysing data to extract information related to the sentiment that it causes. Applications of sentiment analysis are wide, ranging from recommendation systems, and marketing to customer…

Machine Learning · Computer Science 2021-10-29 Vasco Lopes , António Gaspar , Luís A. Alexandre , João Cordeiro

Sentiment prediction remains a challenging and unresolved task in various research fields, including psychology, neuroscience, and computer science. This stems from its high degree of subjectivity and limited input sources that can…

Computation and Language · Computer Science 2021-05-10 JongYoon Lim , Inkyu Sa , Ho Seok Ahn , Norina Gasteiger , Sanghyub John Lee , Bruce MacDonald

Text is the major method that is used for communication now a days, each and every day lots of text are created. In this paper the text data is used for the classification of the emotions. Emotions are the way of expression of the persons…

Computation and Language · Computer Science 2019-01-11 Naveenkumar K S , Vinayakumar R , Soman KP

In emotion recognition from speech, a key challenge lies in identifying speech signal segments that carry the most relevant acoustic variations for discerning specific emotions. Traditional approaches compute functionals for features such…

Computation and Language · Computer Science 2025-06-04 Sofoklis Kakouros

Sentiment Analysis is widely used to quantify sentiment in text, but its application to literary texts poses unique challenges due to figurative language, stylistic ambiguity, as well as sentiment evocation strategies. Traditional…

Computation and Language · Computer Science 2025-11-19 Laurits Lyngbaek , Pascale Feldkamp , Yuri Bizzoni , Kristoffer Nielbo , Kenneth Enevoldsen

Assigning a positive or negative score to a word out of context (i.e. a word's prior polarity) is a challenging task for sentiment analysis. In the literature, various approaches based on SentiWordNet have been proposed. In this paper, we…

Computation and Language · Computer Science 2013-09-24 Marco Guerini , Lorenzo Gatti , Marco Turchi

While reaching for NLP systems that maximize accuracy, other important metrics of system performance are often overlooked. Prior models are easily forgotten despite their possible suitability in settings where large computing resources are…

Computation and Language · Computer Science 2024-04-19 Mahammed Kamruzzaman , Gene Louis Kim

We propose a hybrid approach for multilingual sentiment analysis that combines extractive and abstractive summarization to address the limitations of standalone methods. The model integrates TF-IDF-based extraction with a fine-tuned XLM-R…

Computation and Language · Computer Science 2025-06-10 Mikhail Krasitskii , Grigori Sidorov , Olga Kolesnikova , Liliana Chanona Hernandez , Alexander Gelbukh

In the sentiment attitude extraction task, the aim is to identify <<attitudes>> -- sentiment relations between entities mentioned in text. In this paper, we provide a study on attention-based context encoders in the sentiment attitude…

Computation and Language · Computer Science 2020-06-23 Nicolay Rusnachenko , Natalia Loukachevitch

Performing effective preference-based data retrieval requires detailed and preferentially meaningful structurized information about the current user as well as the items under consideration. A common problem is that representations of items…

Artificial Intelligence · Computer Science 2011-01-13 Joachim Selke , Wolf-Tilo Balke

Keyword extraction is a fundamental task in natural language processing that facilitates mapping of documents to a concise set of representative single and multi-word phrases. Keywords from text documents are primarily extracted using…

Computation and Language · Computer Science 2018-07-17 Debanjan Mahata , John Kuriakose , Rajiv Ratn Shah , Roger Zimmermann , John R. Talburt

Sentiment analysis, also called opinion mining, is the field of study that analyzes people's opinions,sentiments, attitudes and emotions. Songs are important to sentiment analysis since the songs and mood are mutually dependent on each…

Computation and Language · Computer Science 2018-06-12 Gangula Rama Rohit Reddy , Radhika Mamidi

Sentiment classification involves quantifying the affective reaction of a human to a document, media item or an event. Although researchers have investigated several methods to reliably infer sentiment from lexical, speech and body language…

Information Retrieval · Computer Science 2018-06-11 Rahul Gupta , Saurabh Sahu , Carol Espy-Wilson , Shrikanth Narayanan

Recognizing emotion from speech has become one the active research themes in speech processing and in applications based on human-computer interaction. This paper conducts an experimental study on recognizing emotions from human speech. The…

Sound · Computer Science 2015-06-24 Assel Davletcharova , Sherin Sugathan , Bibia Abraham , Alex Pappachen James

Domain-adapted sentiment classification refers to training on a labeled source domain to well infer document-level sentiment on an unlabeled target domain. Most existing relevant models involve a feature extractor and a sentiment…

Computation and Language · Computer Science 2020-02-06 Qianming Xue , Wei Zhang , Hongyuan Zha

This study analyzes 13,218 product reviews from JD.com, covering four categories: mobile phones, computers, cosmetics, and food. A novel method for feature label extraction is proposed by integrating dependency parsing and sentiment…

Computation and Language · Computer Science 2024-12-23 Jianfei Xu

This work investigates the role of factors like training method, training corpus size and thematic relevance of texts in the performance of word embedding features on sentiment analysis of tweets, song lyrics, movie reviews and item…

Computation and Language · Computer Science 2019-02-05 Erion Çano , Maurizio Morisio
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