Essays about: "VADER algorithm"

Found 4 essays containing the words VADER algorithm.

  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. 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. Wed 2.0: improving customer experience with wedding service providers through investigation of the ranking mechanism and sentiment analysis of user feedback on Instagram

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

    Author : Maria Jäderlund; [2019]
    Keywords : sentiment analysis; natural language processing; ranking; Instagram; VADER;

    Abstract : Instagram is one of the main social platforms for business promotion. Millions of potential customers and endless visual marketing opportunities makes Instagram a perfect place to increase online sales. There are many tools and mechanisms to promote brands on Instagram such as paid advertising or using a pre-generated set of popular hashtags. READ MORE

  5. 4. Evaluating rain removal image processing solutions for fast and accurate object detection

    University essay from KTH/Mekatronik

    Author : Tugay Köylüoglu; Lukas Hennicks; [2019]
    Keywords : object detection; failure modes; autonomous vehicles; objektigenkänning; felmodell; autonoma fordon;

    Abstract : Autonomous vehicles are an important topic in modern day research, both for the private and public sector. One of the reasons why self-driving cars have not yet reached consumer market is because of levels of uncertainty. This is often tackled with multiple sensors of different kinds which helps gaining robust- ness in the vehicle’s system. READ MORE