Chuchu Yuan

Chuchu Yuan

Seattle, Washington, United States
6K followers 500+ connections

About

Actively seeking for full-time role as Data Analyst/Scientist. Proficient in Data…

Activity

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Experience

  • Amazon Web Services (AWS) Graphic

    Amazon Web Services (AWS)

    Greater Seattle Area

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    Mountain View, California, United States

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    Shanghai City, China

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    Shanghai City, China

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    Shanghai City, China

Education

Projects

  • The Prediction of the Monthly Average Carbon Dioxide Level of Mauna Loa

    Applied classical estimation method with AR model on residuals and differencing method with MA model on residuals using R, predicted April 2016 Carbon Dioxide level with error 0.74.
    Selected model based on statistical criteria of SSE, AICC, plot of Sample ACF and PACF, test of randomness.
    Performed data visualization on data to detect the trend and seasonality from March 2011 to March 2016

  • Research on significant index in Down’s syndrome

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    Analysis on basic Down’s index: gestational age, age, weight, hCG, uE3, AFP etc. based on year 2009 data.
    Calibrated index in multiples of the gestation-specific median value (MoM) to eliminate the correlation between each index.
    Established regression between serum index with age, gestational age and weight to eliminate their influence on serum index.
    Applied Logistic regression on 2 combined test and 3 combined test and compared the detection rate and false positive…

    Analysis on basic Down’s index: gestational age, age, weight, hCG, uE3, AFP etc. based on year 2009 data.
    Calibrated index in multiples of the gestation-specific median value (MoM) to eliminate the correlation between each index.
    Established regression between serum index with age, gestational age and weight to eliminate their influence on serum index.
    Applied Logistic regression on 2 combined test and 3 combined test and compared the detection rate and false positive rate.
    Concluded that 3 index combined test has increased detection rate with 5.5% and decreased false positive rate with 1%.

  • Wechat payment center V.S. Alipay

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    Read reference about the development of the mobile payment application and collected information about Wechat payment center and Alipay (Mobile Payment Application).
    Designed the questionnaire including the users’ basic information: ages, incomes, jobs, personal preference and consumption habits.
    Applied PCA and clustering method on collected data to reduce dimensions to well generalize the users’ preference.
    Established Logistic model and decision tree based on the clustering and…

    Read reference about the development of the mobile payment application and collected information about Wechat payment center and Alipay (Mobile Payment Application).
    Designed the questionnaire including the users’ basic information: ages, incomes, jobs, personal preference and consumption habits.
    Applied PCA and clustering method on collected data to reduce dimensions to well generalize the users’ preference.
    Established Logistic model and decision tree based on the clustering and factor analysis with SPSS to classify two groups.

Languages

  • English

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  • Chinese (Simplified)

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