Sökning: "contrastive"

Visar resultat 21 - 25 av 165 uppsatser innehållade ordet contrastive.

  1. 21. Messing With The Gap: On The Modality Gap Phenomenon In Multimodal Contrastive Representation Learning

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Industriell teknik

    Författare :Mohammad Al-Jaff; [2023]
    Nyckelord :Multimodal machine learning; Representation learning; Self-supervised learning; contrastive learning; computer vision; computational biology; bioinformatics;

    Sammanfattning : In machine learning, a sub-field of computer science, a two-tower architecture model is a specialised type of neural network model that encodes paired data from different modalities (like text and images, sound and video, or proteomics and gene expression profiles) into a shared latent representation space. However, when training these models using a specific contrastive loss function, known as the multimodalinfoNCE loss, seems to often lead to a unique geometric phenomenon known as the modality gap. LÄS MER

  3. 22. La proposition ou le syntagme ? : Une analyse structurelle de trois articles français et de leurs traductions suédoises

    Magister-uppsats, Linnéuniversitetet/Institutionen för språk (SPR)

    Författare :Anna Näsström; [2022]
    Nyckelord :Translation studies; contrastive linguistics; structural analysis; phrase; clause; transposition;

    Sammanfattning : The present study is based on a translation into Swedish of three French journalistic articles on energy sobriety. The study aims at comparing the source and the target texts, with regard to clause frequency and the use of various clause and phrase categories. LÄS MER

  4. 23. Negative Transfer from Arabic as a Major Reason for the Errors Made by Arabic Learners in their Written Production in English as a Second Language

    Kandidat-uppsats, Södertörns högskola/Engelska

    Författare :Bashar Khalil; [2022]
    Nyckelord :Second language acquisition; English; Arabic; language interference; negative transfer; error analysis; contrastive analysis;

    Sammanfattning : The purpose of this research is to investigate the influence of negative transfer from Arabic as the most dominant influential factor among other possible factors that negatively affect Arabic learners resulting in them making errors in their written production in English as a second language. To perform this investigation, the author has collected and analysed 15 texts written by Arabic students enrolled in Grades 7, 8, and 9 of a lower secondary school. LÄS MER

  5. 24. Methods for data and user efficient annotation for multi-label topic classification

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

    Författare :Agnieszka Miszkurka; [2022]
    Nyckelord :Natural Language Processing; Multi-label text classification; Active Learning; Zero-shot learning; Data Augmentation; Data-centric AI; Naturlig språkbehandling; Textklassificering med multipla klasser; Active Learning; Zero-shot learning; Data Augmentation; Datacentrerad AI;

    Sammanfattning : Machine Learning models trained using supervised learning can achieve great results when a sufficient amount of labeled data is used. However, the annotation process is a costly and time-consuming task. There are many methods devised to make the annotation pipeline more user and data efficient. LÄS MER

  7. 25. Pre-classification of Hairy Cells Using Supervised Contrastive Learning

    Master-uppsats, Lunds universitet/Matematik LTH

    Författare :Alexia Han; Rebecca Schömer Ericsson; [2022]
    Nyckelord :supervised contrastive learning; hairy cells; abnormal lymphocytes; deep learning; Cellavision; Xception; artificial neural network; convolutional neural networks; Mathematics and Statistics;

    Sammanfattning : Differential of the peripheral blood is an important tool when assessing blood-related diseases. Lymphocytes are part of the immune system and morphological changes thereof should raise attention. LÄS MER