Sökning: "Jiawei Liu"

Hittade 3 uppsatser innehållade orden Jiawei Liu.

  1. 1. Obstacles in transitioning towards omnichannel retailing : A dynamic capability perspective

    Master-uppsats, Uppsala universitet/Institutionen för samhällsbyggnad och industriell teknik

    Författare :Jiawei Liu; Amarnath Nagula; [2020]
    Nyckelord :Omnichannel retailing; Dynamic capability; Small retailers;

    Sammanfattning : Purpose: In the past two decades, shopping online has grown at a rapid pace, and it had a significant impact on every player in the retail industry from a small retailer to large retail chains. The retailers were forced to redefine the way they operate by managing various channels to reach their consumers. LÄS MER

  3. 2. Testing Structure of Covariance Matrix under High-dimensional Regime

    Master-uppsats, Linköpings universitet/Statistik och maskininlärning

    Författare :Jiawei Wu; [2020]
    Nyckelord :Covariance matrix; Structure test; High-dimension data; Outliers; Significance level; Power of test; Goodness of fit test;

    Sammanfattning : Statisticians are interested in testing the structure of covariance matrices, especially under the high-dimensional scenario in which the dimensionality of data matrices exceeds the sample size. Many test statistics have been introduced to test whether the covariance matrix is equal to identity structure (), sphericity structure () or diagonal structure (). LÄS MER

  4. 3. Writing Chinese Characters: Right or Left? : The Chinese Discriminatory Policy of Left-Handedness Correction in Terms of Handwriting

    Magister-uppsats, Linköpings universitet/Centrum för tillämpad etik

    Författare :Jiawei Xie; [2016]
    Nyckelord :Discriminatory Policy; Discrimination; the left-handed writing; prejudicial attitude; solutions;

    Sammanfattning : Chinese left-handed are found to be very few, especially in terms of handwriting. The Chinese educational policy that fully entitles teachers in primary school to change the left-handed students to write with their right-hand, by nudging and even force, is found to be mainly blamed as the main cause. LÄS MER