Sökning: "Polarity"

Visar resultat 1 - 5 av 117 uppsatser innehållade ordet Polarity.

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

    Kandidat-uppsats, Lunds universitet/Statistiska institutionen

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

    Sammanfattning : 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. LÄS MER

  3. 2. Oscillations in a complex sunspot: From theory to data

    Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Femke Kranenbarg; [2024]
    Nyckelord :;

    Sammanfattning : Sunspot oscillations, intricate three-dimensional wave-like motions in the solar atmosphere, result from the complex interplay between plasma and magnetic fields. This study delves into the behaviour of these oscillations, exploring their simultaneous excitation and evaluating their impact on solar phenomena like coronal heating, energy transport, and solar flares. LÄS MER

  4. 3. Topics and Attitudes in COVID-19 Online News Comments about Italy and Sweden. Appraisal Framework applied to Corpus-Assisted Discourse Analysis

    Master-uppsats, Institutionen för tillämpad informationsteknologi

    Författare :Niklas Danielson; Arianna De Luca; [2023-11-22]
    Nyckelord :Online News Comments; COVID-19; CADA; Appraisal Framework; Corpus Linguistics;

    Sammanfattning : This study conducts a mixed-methods, comparative study of online news comments. The subject of the articles were the two countries of Sweden and Italy during the COVID-19 pandemic. LÄS MER

  5. 4. Analysis of fatty acids in fatty acid-based herbicides by gas chromatography

    Master-uppsats, Lunds universitet/Kemiska institutionen

    Författare :Mohamad Abd Elwadood; [2023]
    Nyckelord :Analytical Chemistry; Fatty Acids; Gas Chromatography; Green Herbicides; Retention Index; Flame Ionization Detector; Mass Spectrometry; Supercritical Carbon Dioxide Extraction.; Chemistry;

    Sammanfattning : Fatty acids-based herbicides are considered to be a green alternative to synthesized weed control products. However, the environmentally sustainable effect of those herbicides needs more investigation to be confirmed. LÄS MER

  7. 5. Real-time visual feedback of emotional expression in singing

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Xuehua Fu; [2023]
    Nyckelord :Sound and Music Computing; Music Visualization; Cross-modal Feedback; Mapping; Music Expressivity; Multimodal Interaction; Ljud-och musikberäkning; Musikvisualisering; Korsmodal återkoppling; Kartläggning; Musikexpressivitet; Multimodal interaktion;

    Sammanfattning : The thesis project concerns the development and evaluation of a real-time music visualization system aimed at creating a multi-modal perceptual experience of music emotions. The purpose of the project is to provide singers with real-time visual feedback on their singing, to enhance their expression of emotions in the music. LÄS MER