Essays about: "roberta"

Showing result 1 - 5 of 34 essays containing the word roberta.

  1. 1. Comparison of VADER and Pre-Trained RoBERTa: A Sentiment Analysis Application

    University essay from Lunds universitet/Statistiska institutionen

    Author : Linda Erwe; Xin Wang; [2024]
    Keywords : sentiment analysis; natural language processing; BERT; VADER; sustainability report; Mathematics and Statistics;

    Abstract : Purpose: The purpose of this study is to examine how the overall sentiment results from VADER and a pre-trained RoBERTa model differ. The study investigates potential differences in terms of the median and shape of the two distributions. Data: The sustainability reports of 50 independent random companies are selected as the sample. READ MORE

  3. 2. Initial Development and Validation of Language-Based Assessments for Meaningful Change

    University essay from Lunds universitet/Institutionen för psykologi

    Author : Ulrika Söderström; [2024]
    Keywords : meaningful change; depression; Large Language Models; AI; Social Sciences;

    Abstract : Meaningful change has been discussed in multiple studies, with the recurring question of how it could be conceptualized and assessed to identify what determines meaningful change and where it occurs. Previous studies have conducted statistical analyses based on traditional rating scales (i.e., the PHQ-9) to assess meaningful change. READ MORE

  4. 3. Efficient Sentiment Analysis and Topic Modeling in NLP using Knowledge Distillation and Transfer Learning

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : George Malki; [2023]
    Keywords : Large Language Model; RoBERTa; Knowledge distillation; Transfer learning; Sentiment analysis; Topic modeling; Stor språkmodell; RoBERTa; Kunskapsdestillation; överföringsinlärning; Sentimentanalys; Ämnesmodellering;

    Abstract : This abstract presents a study in which knowledge distillation techniques were applied to a Large Language Model (LLM) to create smaller, more efficient models without sacrificing performance. Three configurations of the RoBERTa model were selected as ”student” models to gain knowledge from a pre-trained ”teacher” model. READ MORE

  5. 4. Detection of suicidal ideation in written communication

    University essay from Stockholms universitet/Institutionen för data- och systemvetenskap

    Author : Melina Bernsland; [2023]
    Keywords : Suicidal ideation; machine learning; RoBERTa;

    Abstract : Suicide remains a global cause of mortality, presenting challenges in detection and prevention despite known warning signs. This work aimed to improve personal security management by leveraging machine learning advancements to identify suicidal ideation in written communications. READ MORE

  6. 5. AI-POWERED TEXT ANALYSIS TOOL FOR SENTIMENT ANALYSIS

    University essay from Mälardalens universitet/Akademin för innovation, design och teknik

    Author : Dani Kebede; Naod Tesfai; [2023]
    Keywords : Sentiment analysis; Artificial intelligence; NLP; RoBERTa;

    Abstract : In today’s digital era, text data plays a ubiquitous role across various domains. This bachelor thesis focuses on the field of sentiment analysis, specifically addressing the task of classifying text into positive, negative, or neutral sentiments with the help of an AI tool. READ MORE