Search for dissertations about: "Attention mechanisms"

Showing result 1 - 5 of 389 swedish dissertations containing the words Attention mechanisms.

  1. 1. Understanding Neural Machine Translation : An investigation into linguistic phenomena and attention mechanisms

    Author : Gongbo Tang; Joakim Nivre; Rico Sennrich; Philipp Koehn; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Neural machine translation; Linguistic phenomena; Ambiguity; Long-range dependency; Morphology; Negation; Attention mechanisms; Interpretation; Computational Linguistics; Datorlingvistik;

    Abstract : In this thesis, I explore neural machine translation (NMT) models via targeted investigation of various linguistic phenomena and thorough exploration of the internal structure of NMT models, in particular the attention mechanism. With respect to linguistic phenomena, I explore the ability of NMT models to translate ambiguous words, to learn long-range dependencies, to learn morphology, and to translate negation—linguistic phenomena that have been challenging for the older paradigm of statistical machine translation. READ MORE

  2. 2. Attention capture by sudden and unexpected changes : a multisensory perspective

    Author : Erik Marsja; Jessica K. Ljungberg; Gregory Neely; Patrik Hansson; François Vachon; Umeå universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Attention Capture; Tactile; Auditory; Visual; Crossmodal; Bimodal; Distraction; Short-term memory; Attention; Psychology; psykologi;

    Abstract : The main focus for this thesis was cross-modal attention capture by sudden and unexpected sounds and vibrations, known as deviants, presented in a stream the same to-be-ignored stimulus. More specifically, the thesis takes a multisensory perspective and examines the possible similarities and differences in how deviant vibrations and sounds affect visual task performance (Study I), and whether the deviant and standard stimuli have to be presented within the same modality to capture attention away from visual tasks (Study II). READ MORE

  3. 3. Internalization mechanisms of cell-penetrating peptides : Structure-activity relationships, cellular distribution and membrane toxicity studies

    Author : Mats Hansen; Ülo Langel; Mark Lindsay; Stockholms universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cell-penetrating peptides; mechanisms; toxicity; structure-activity relationship; Neurochemistry; Neurokemi; Neurochemistry and Molecular Neurobiology; neurokemi med molekylär neurobiologi;

    Abstract : Transport of substances with pharmaceutical potential over the plasma membrane has been pushed a great step forward with the discovery of short cationic polypeptides, known as cell-penetrating peptides (CPP). Since then, the internalization mechanism and cargo delivery properties of CPPs has been extensively studied. READ MORE

  4. 4. Social Policy in Development Contexts : Drivers, Mechanisms and Outcomes

    Author : Sebastian Sirén; Kenneth Nelson; Ann-Zofie Duvander; Olof Bäckman; Björn Halleröd; Stockholms universitet; []
    Keywords : SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; social policy; social protection; political economy; welfare state; comparative politics; causal mechanisms; development; poverty; inequality; inclusive growth; partisan politics; sustainable development goals; global studies; Sociology; sociologi;

    Abstract : Economic growth amidst staggering inequality in many low- and middle-income countries makes the quest to end global poverty more topical than ever. Calls to leave no one behind in the course of development underscore the need to reconsider the role of policy frameworks in emerging economies. READ MORE

  5. 5. Cell-penetrating peptides and bioactive cargoes : Strategies and mechanisms

    Author : Kalle Kilk; Ülo Langel; Michael J. Gait; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Cell-penetrating peptide; delivery; Peptide nucleic acid; Biochemistry; Biokemi;

    Abstract : The cell membrane is an impermeable barrier for most macromolecules. Recently discovered cell-penetrating peptides (CPPs) have gained lot of attention because they can cross the membrane, and even more, carry cargoes with them. How CPPs enter cells is still not clear, while the delivery of different cargoes has been convincingly shown. READ MORE