Light bulbs in my head

Here are some notions and mini steps that I took to explore an incredible world.

  • 2022-07-09     Using particle swarm optimization to estimate ability and item parameters
    (still working on, please wait)

    • It has been well-known that particle swarm optimization supports multi-object optimization and has a reputation for its swift convergence with fewer parameters and information sharing. All of these ignite me to imagine: can we benefit from this algorithm when estimating multidimensional abilities or item parameters, and is there a connection between information sharing and prior setting in Bayesian?
  • 2022-06-30     Stage adaptive item selection method in multidimensional IRT

    • Psychological or educational tests often intend to measure multiple traits which help interpret multifaceted cognitive processes, but most item selection methods for computerized classification testing with non-statistical constraints are limited to the unidimensional case. Thus, I expanded my newly-proposed methods to the multidimensional scenario and tried to see what would happen. [Read more]

    Unforgettable experiences

    Here are some experiences that shaped who I am.

  • 2017-08-12     What it's like to be a volunteer teacher at Wanzi Primary School: Building the wind so as to help you fly

    • In China, many young children, usually under 15 years old, have been left behind in the countryside in the care of relatives and friends because their parents have immigrated to the cities to look for better incomes. These children are called “left-behind children” (LBC). Living with relatives or non-relatives suffers a high risk of being neglected, and most LBC have problems in developing their future career and social relationship. Our team, the Paper Plane Voluntary Service Group (PPVS), aims to address the barriers that keep LBC from embracing better future and relationships. [Read more]

    Beloved things

    Here are treasures that shed light on my life.

    Serendipity
    One amazing evening in September 2017, I tentatively wrote to Prof. Minqiang Zhang to introduce myself and see if he would be interested in mentoring me. I got a positive response after only 36 seconds!

    Bao
    I had the most beautiful five years in my life when I was with Bao, a blessing from god. Bao taught me how to love and let me know how it feels to be loved.

    Taylor Swift
    Her enthusiasm towards her career and resilience in tribulations always galvanize me to keep making great efforts for my goal and to retrieve from afflictions.


    Get In Touch :D

    Please feel free to contact me.


    • Address

      500 Landfair Avenue, Los Angeles
      90024 California

    • Phone

      (310) 873-7956

    • Email

      yingshi@ucla.edu