National Cheng Kung University

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Name Chang-Tai Chao
Job title Associate Professor
Expertise Adaptive Sampling Strategy; Sampling Theory and Methods; Optimal Sampling Strategy
E-mail ctchao@ncku.edu.tw
Office Room 62420, 4th Floor, Department of Statistics
Tel (06)2757575~53643
Web site https://researchoutput.ncku.edu.tw/zh/persons/chang-tai-chao
Main Experiences
  • Associate Professor, Department of Statistics, National Cheng-Kung University. (August 2004 - Present).
  • Assistant Professor, Department of Statistics, National Cheng-Kung University. (August 1999 - July 2004)
Education

  • PhD, The Pennsylvania State University, University Park, 1999. Major: Statistics

  • BSc, National Cheng Kung University, 1988. Major: Mathematics

Research Field
  • Theory　and　applications　of　model　based　optimal　sampling　strategy
    -Development　of　optimal　sampling　strategies　using　the　adaptive　sampling　principal
    -Better　selection　of　sampling　units　with　computational　ease.
    -Related　applications　on　environmental、ecologcal　statistics、and　geostatistics.
  • Adaptive　cluster　sampling　and　related　topics
    -　Rare　population　survey
    -　Incomplete　adaptive　cluster　sampling
    -　Model-assisted　estimators(ratio　and　regression　estimators)under　adaptive　cluster　sampling.
    -　Related　applications　on　environmental　and　ecological　sciences
  • Relative　applications　of　sampling　survey
    -　Marketing　survey
    -　Political　and　public　opinion　survey
Journals

  1. Variances and variance estimators of the improved ratio estimators under adaptive cluster sampling
    Lin, F. M. & Chao, C. T., 2014 六月, 於 : Environmental and Ecological Statistics. 21, 2, p. 285-311 27 p.

  2. Leveraging the Rao-Blackwell theorem to improve ratio estimators in adaptive cluster sampling
    Chao, C-T., Dryver, A. L. & Chiang, T. C., 2011 九月 1, 於 : Environmental and Ecological Statistics. 18, 3, p. 543-568 26 p.

  3. Ratio estimators in adaptive cluster sampling
    Dryver, A. L. & Chao, C-T., 2007 九月 1, 於 : Environmetrics. 18, 6, p. 607-620 14 p.

  4. Selection of sampling units under a correlated population based on the eigensystem of the population covariance matrix
    Chao, C-T., 2004 十二月 1, 於 : Environmetrics. 15, 8, p. 757-775 19 p.

  5. Markov Chain Monte Carlo on optimal adaptive sampling selections
    Chao, C. T., 2003 三月 1, 於 : Environmental and Ecological Statistics. 10, 1, p. 129-151 23 p.

  6. Optimal adaptive selection of sampling sites
    Chao, C. T. & Thompson, S. K., 2001 十月 16, 於 : Environmetrics. 12, 6, p. 517-538 22 p.

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