Essays about: "Lexicon-based techniques"

Showing result 1 - 5 of 7 essays containing the words Lexicon-based techniques.

  1. 1. Exploration of using Twitter data to predict Swedish political opinion polls with neural networks

    University essay from Lunds universitet/Matematisk statistik

    Author : Alexander Gren; Klara Lundgren; [2023]
    Keywords : Mathematics and Statistics;

    Abstract : This thesis aims to explore the possibility of using deep learning techniques to mine opinions on Twitter, with the objective to predict the political opinion distribution in Sweden. Different methods of gathering and annotating training data are evaluated to achieve accurate and reliable predictions. READ MORE

  3. 2. Optimizing Lexicon-Based Sentiment Analysis for COVID-19 Twitter : Interactions in Health Contexts

    University essay from Linnéuniversitetet/Institutionen för datavetenskap och medieteknik (DM)

    Author : Jafari Ramin; [2023]
    Keywords : Sentiment analysis; COVID-19 pandemic; Twitter; Lexicon-based techniques; VADER algorithm;

    Abstract : During the COVID-19 pandemic, the surge in social media usage has elevated interestin sentiment analysis, especially for health-related applications. This bachelor thesisexplores the effectiveness of two lexicon-based sentiment analysis techniques, with afocus on enhancing the accuracy of the Valence Aware Dictionary for SentimentReasoning (VADER) algorithm. READ MORE

  4. 3. Sentiment Analysis for Swedish : The Impact of Emojis on Sentiment Analysis of Swedish Informal Texts

    University essay from Umeå universitet/Institutionen för datavetenskap

    Author : Lovisa Berggren; [2023]
    Keywords : sentiment analysis; NLP; natural language processing; emojis; swedish;

    Abstract : This study investigates the use of emojis in sentiment analysis for the Swedish language, with the objective to assess if emojis improve the performance of the model. Sentiment analysis is an NLP classification task aimed at extracting people's opinions, sentiments, and attitudes from language. READ MORE

  5. 4. Sentiment building from textual data content in quarterly reports

    University essay from Lunds universitet/Nationalekonomiska institutionen

    Author : Tarek Jelassi; [2021]
    Keywords : Textual analysis; Python Programming Language; Modeling; Return Forecast; Sentiment building.; Business and Economics;

    Abstract : Textual analysis is increasingly becoming a reliable tool for pattern assessing and forecasting especially statistically. Implementing such techniques in the financial field is still in an infantry stage and it represents a novel research area. READ MORE

  6. 5. An Automated Digital Analysis of Depictions of Child Maltreatment in Ancient Roman Writings

    University essay from Uppsala universitet/Teologiska institutionen

    Author : Alexander Browne; [2019]
    Keywords : digital humanities; child maltreatment; ancient rome; christianity; sentiment analysis; naive bayes;

    Abstract : Historians, mostly engaging with written evidence, have argued that the Christianisation of the Roman Empire resulted in changes in both attitudes and behaviour towards children, resulting in a decrease in their maltreatment by society. I begin with a working hypothesis that this attitude-change was real and resulted in a reduction in the maltreatment of children; and that this reduction in maltreatment is evident in the literature. READ MORE