Sökning: "Perceptual Similarity"

Visar resultat 1 - 5 av 22 avhandlingar innehållade orden Perceptual Similarity.

  1. 1. Deep Perceptual Loss and Similarity

    Författare :Gustav Grund Pihlgren; Marcus Liwicki; Fredrik Sandin; Hugo Larochelle; Luleå tekniska universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Image Similarity; Perceptual Similarity; Perceptual Loss; Deep Features; Deep Learning; Machine Learning; Maskininlärning;

    Sammanfattning : This thesis investigates deep perceptual loss and (deep perceptual) similarity; methods for computing loss and similarity for images as the distance between the deep features extracted from neural networks. The primary contributions of the thesis consist of (i) aggregating much of the existing research on deep perceptual loss and similarity, and (ii) presenting novel research into understanding and improving the methods. LÄS MER

  3. 2. Geometric Models of Similarity

    Författare :Mikael Johannesson; Kognitionsvetenskap; []
    Nyckelord :HUMANIORA; HUMANITIES; symmetry; similarity; separable dimensions; prominence; multidimensional scaling; Minkowski metric; machine learning; integral dimensions; familiarity; geometric models; distance metric; asymmetry; conceptual spaces; Computer science; numerical analysis; systems; control; Datalogi; numerisk analys; system; kontroll; Geometry; algebraic topology; Geometri; algebraisk topologi;

    Sammanfattning : This dissertation examines and discusses some phenomena related to the geometric representation of similarity. It takes its inspiration from the existing body of empirical research within the fields of perceptual and cognitive psychology, but also connects to certain areas of machine learning. LÄS MER

  4. 3. When similarity qualifies as a sign : a study in picture understanding and semiotic development in young children

    Författare :Sara M. Lenninger; Göran Sonesson; Gisela Håkansson; Frederik Stjernfelt; Sara Lenninger; Lunds universitet; []
    Nyckelord :Semiotic development; children; picture; communication; iconicity;

    Sammanfattning : The general goal of this thesis is to elucidate children’s early understandings of pictorial meanings, and how one can know anything about them. My central aim is to explore how picture comprehension develops during children’s first 3 years of life, through semiotic-theory-derived analyses of meaning relations. LÄS MER

  5. 4. When similarity qualifies as a sign : a study in picture understanding and semiotic development in young children

    Författare :Sara Lenninger; Göran Sonesson; Gisela Håkansson; Kognitiv semiotik; []
    Nyckelord :HUMANIORA; HUMANITIES;

    Sammanfattning : The general goal of this thesis is to elucidate children’s early understandings of pictorial meanings, and how one can know anything about them. My central aim is to explore how picture comprehension develops during children’s first 3 years of life, through semiotic-theory-derived analyses of meaning relations. LÄS MER

  7. 5. A Combined Perceptual and Acoustical Account of US Dialect Distance

    Författare :Clelia R. LaMonica; Peter Sundkvist; Cynthia Clopper; Anja Schüppert; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; US English; dialects; dialectometry; perception; acoustics; sociophonetics; English; engelska;

    Sammanfattning : This study examines the influence of attitudinal, perceptual, and acoustic factors on the categorization of US dialects by comparing acoustic-vocalic and perceived accent distances. The results of native and non-native listeners’ perceived distances between US regional accents are investigated in light of how acoustic-phonetic markers, attitudinal judgments, and identifiability may together impact how similar or different accents are perceived to be. LÄS MER