Search for dissertations about: "k-means"

Showing result 1 - 5 of 11 swedish dissertations containing the word k-means.

  1. 1. Fast, Robust and Scalable Clustering Algorithms with Applications in Computer Vision

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Vahan Petrosyan; KTH.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Datalogi; Computer Science; Datalogi; Computer Science; Electrical Engineering; Elektro- och systemteknik;

    Abstract : In this thesis, we address a number of challenges in cluster analysis. We begin by investigating one of the oldest and most challenging problems: determining the number of clusters, k. READ MORE

  2. 2. 60 GHz Wireless Propagation Channels: Characterization, Modeling and Evaluation

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Carl Gustafson; Lunds universitet.; Lund University.; Lunds universitet.; Lund University.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 60 GHz; mm-wave; IEEE 802.11ad; IEEE802.15.3c; Channel measurements; Channel modeling; propagation; MIMO; Beamforming; Spatial Multiplexing;

    Abstract : To be able to connect wirelessly to the internet is nowadays a part of everyday life and the number of wireless devices accessing wireless networks worldwide are increasing rapidly. However, with the increasing number of wireless devices and applications and the amount available bandwidth, spectrum shortage is an issue. READ MORE

  3. 3. Directed Evolution of Glutathione Transferases Guided by Multivariate Data Analysis

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Sanela Kurtovic; Uppsala universitet.; [2008]
    Keywords : Biochemistry; DNA shuffling; substrate selectivity; mutant library; glutathione transferase; multivariate data analysis; prodrug; Biokemi;

    Abstract : Evolution of enzymes with novel functional properties has gained much attention in recent years. Naturally evolved enzymes are adapted to work in living cells under physiological conditions, circumstances that are not always available for industrial processes calling for novel and better catalysts. READ MORE

  4. 4. Blood flow assessment in cerebral arteries with 4D flow magnetic resonance imaging an automatic atlas-based approach

    University dissertation from Umeå : Umeå universitet

    Author : Tora Dunås; Umeå universitet.; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Circle of Willis; 4D flow MRI; Cerebral arteries; Vascular disease; Stroke; Automatic labeling; Probabilistic atlas; Cerebral blood flow; Neuroimaging; Magnetic Resonance Imaging;

    Abstract : Background: Disturbed blood flow to the brain has been associated with several neurological diseases, from stroke and vascular diseases to Alzheimer’s and cognitive decline. To determine the cerebral arterial blood flow distribution, measurements are needed in both distal and proximal arteries. READ MORE

  5. 5. Paranormal Beliefs and Experiences in Relation to Subjective Health and Schizotypy

    University dissertation from Göteborg : University of Gothenburg

    Author : Anneli Goulding; Göteborgs universitet.; Gothenburg University.; [2003]

    Abstract : This thesis aimed at investigating paranormal beliefs and experiences in relation to subjective health and ill-health in terms of schizotypy. Following a literature review, two empirical studies are presented. The purpose of the studies was to investigate which of two models best describes the construct schizotypy. READ MORE