Academia.edu no longer supports Internet Explorer.
To browse Academia.edu and the wider internet faster and more securely, please take a few seconds to upgrade your browser.
Proceedings of the 2018 EMNLP Workshop SMM4H: The 3rd Social Media Mining for Health Applications Workshop & Shared Task
2005 •
With the extensive availability of social media platforms, Twitter has become a significant tool for the acquisition of peoples’ views, opinions, attitudes, and emotions towards certain entities. Within this frame of reference, sentiment analysis of tweets has become one of the most fascinating research areas in the field of natural language processing. A variety of techniques have been devised for sentiment analysis, but there is still room for improvement where the accuracy and efficacy of the system are concerned. This study proposes a novel approach that exploits the advantages of the lexical dictionary, machine learning, and deep learning classifiers. We classified the tweets based on the sentiments extracted by TextBlob using a stacked ensemble of three long short-term memory (LSTM) as base classifiers and logistic regression (LR) as a meta classifier. The proposed model proved to be effective and time-saving since it does not require feature extraction, as LSTM extracts featu...
2021 •
Sentiment Analysis is a classification task in order to identify public reviews about different issues like product reviews, movie reviews, restaurant reviews, political opinions, and other current issues by extracting the public reviews from Social Media, and other Micro blogging sites. As we all know Coronavirus Disease 2019 (COVID-19) is still a global issue for entire world and people are expressing their emotions, thoughts, and opinions about this issue with help of Twitter, Facebook, and other Media. In this paper we have collected public tweets from Twitter which are talked about the COVID-19 global pandemic and applied a Convolutional Neural Network with Bidirectional Long-Short Term Memory (CNN-Bi-LSTM) hybrid Deep Learning algorithm to detect the user s outlook on this pandemic whether they have positive feelings, negative feelings, or neutral feelings. The proposed method used preprocessing techniques to clean the data and used a word embedding pre-trained model to extract word embedding for rare words in our corpus with the help of FastText and GloVe pre-trained models. The CNN-Bi-LSTM hybrid model evaluated using accuracy, precision, recall, and f1 evaluation techniques. The experimental result has been shown 99.33% accuracy using CNN-Bi-LSTM with FastText pre-trained model, and 97.55% accuracy using CNN-Bi-LSTM with GloVe pre-trained model.
2020 •
How different cultures react and respond given a crisis is predominant in a society's norms and political will to combat the situation. Often, the decisions made are necessitated by events, social pressure, or the need of the hour, which may not represent the nation's will. While some are pleased with it, others might show resentment. Coronavirus (COVID-19) brought a mix of similar emotions from the nations towards the decisions taken by their respective governments. Social media was bombarded with posts containing both positive and negative sentiments on the COVID-19, pandemic, lockdown, and hashtags past couple of months. Despite geographically close, many neighboring countries reacted differently to one another. For instance, Denmark and Sweden, which share many similarities, stood poles apart on the decision taken by their respective governments. Yet, their nation's support was mostly unanimous, unlike the South Asian neighboring countries where people showed a lot o...
Applied Sciences
A Survey on Recent Named Entity Recognition and Relationship Extraction Techniques on Clinical TextsSignificant growth in Electronic Health Records (EHR) over the last decade has provided an abundance of clinical text that is mostly unstructured and untapped. This huge amount of clinical text data has motivated the development of new information extraction and text mining techniques. Named Entity Recognition (NER) and Relationship Extraction (RE) are key components of information extraction tasks in the clinical domain. In this paper, we highlight the present status of clinical NER and RE techniques in detail by discussing the existing proposed NLP models for the two tasks and their performances and discuss the current challenges. Our comprehensive survey on clinical NER and RE encompass current challenges, state-of-the-art practices, and future directions in information extraction from clinical text. This is the first attempt to discuss both of these interrelated topics together in the clinical context. We identified many research articles published based on different approaches ...
Computational and Mathematical Methods in Medicine
Detection and Classification of Psychopathic Personality Trait from Social Media Text Using Deep Learning ModelNowadays, there is a digital era, where social media sites like Facebook, Google, Twitter, and YouTube are used by the majority of people, generating a lot of textual content. The user-generated textual content discloses important information about people’s personalities, identifying a special type of people known as psychopaths. The aim of this work is to classify the input text into psychopath and nonpsychopath traits. Most of the existing work on psychopath’s detection has been performed in the psychology domain using traditional approaches, like SRPIII technique with limited dataset size. Therefore, it motivates us to build an advanced computational model for psychopath’s detection in the text analytics domain. In this work, we investigate an advanced deep learning technique, namely, attention-based BILSTM for psychopath’s detection with an increased dataset size for efficient classification of the input text into psychopath vs. nonpsychopath classes.
The increasing volume of user-generated content on the web has made sentiment analysis an important tool for the extraction of information about the human emotional state. A current research focus for sentiment analysis is the improvement of granularity at aspect level, representing two distinct aims: aspect extraction and sentiment classification of product reviews and sentiment classification of target-dependent tweets. Deep learning approaches have emerged as a prospect for achieving these aims with their ability to capture both syntactic and semantic features of text without requirements for high-level feature engineering , as is the case in earlier methods. In this article, we aim to provide a comparative review of deep learning for aspect-based sentiment analysis to place different approaches in context.
International Journal of Computer Science and Information Technology
Epidemic Outbreak Prediction Using Artificial IntelligenceSentiment analysis (SA) or opinion mining extracts and analyses subjective information from various sources such as the web, social media, and other sources to determine people's opinions using natural language processing (NLP), computational linguistics, and text analysis. This analyzed information gives the public's feelings or attitudes about specific items, persons, or ideas and identifies the information's contextual polarity. This systematic review gives a clear image of recent work in sentiment analysis SA; it studies the papers published in the SA field between 2016 and 2020 using the science direct and Springer databases. Furthermore, it explains the various approaches employed and the various uses of SA systems. In science Direct, 99 publications meet our research requirements, whereas, in Springer, 57 papers meet the same conditions, with a total of 156 papers reviewed and assessed in this systematic review. Techniques, performance, language, and the domain have been analyzed.
2019 •
Social Network Analysis and Mining
A review on sentiment analysis and emotion detection from textInternational Conference on Tools with Artificial Intelligence, ICTAI
Deep Learning Ensembles for Hate Speech Detection2020 •
Engineering Reports
Text-based emotion detection: Advances, challenges, and opportunities2020 •
Computational and Mathematical Methods in Medicine
Detection of Fake News Text Classification on COVID-19 Using Deep Learning ApproachesProceedings of the AAAI Conference on Artificial Intelligence
Weakly-Supervised Fine-Grained Event Recognition on Social Media Texts for Disaster ManagementProceedings of the 30th ACM International Conference on Information & Knowledge Management
Sparse ShieldInformation 12, no. 1: 5
An Online Multilingual Hate speech Recognition System2021 •
International Journal of Disaster Risk Reduction
Machine-learning methods for identifying social media-based requests for urgent help during hurricanes2020 •
EVALITA Evaluation of NLP and Speech Tools for Italian
Evalita 2018: Overview on the 6th Evaluation Campaign of Natural Language Processing and Speech Tools for ItalianProceedings of the 18th Workshop of the Australasian Language Technology Association
ALTA2020 proceedings draft2020 •
Advances in Engineering and Technology: An International Journal
Sentiment Analysis on Covid-19 Vaccination Tweets using Naïve Bayes and LSTM2019 •
Proceedings of the 13th International Workshop on Semantic Evaluation
LaSTUS/TALN at SemEval-2019 Task 6: Identification and Categorization of Offensive Language in Social Media with Attention-based Bi-LSTM model2019 •
International Journal of Electrical and Computer Engineering (IJECE)
Text pre-processing of multilingual for sentiment analysis based on social network dataIEEE Transactions on Computational Social Systems
COVIDSenti: A Large-Scale Benchmark Twitter Data Set for COVID-19 Sentiment Analysis2021 •
International Journal of Advanced Computer Science and Applications
Correlating Crime and Social Media: Using Semantic Sentiment Analysis