Justina Petraitytė

Justina Petraitytė

Portugal
7 mil seguidores de 500 conexões

Sobre

Data Scientist, developer, and educator with a passion for enabling developers to build…

Artigos de Justina

Atividades

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Experiência

  • Gráfico 3Box Labs
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    Remote

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    Berlin Area, Germany

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    Berlin Area, Germany

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    Birmingham, United Kingdom

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    Birmingham, United Kingdom

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    Belfast, United Kingdom

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    Vilnius, Lithuania

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    Vilnius, Lithuania

Formação acadêmica

  • Gráfico Vilniaus universitetas / Vilnius University

    Vilniaus Universitetas

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    Atividades e grupos:VU MIF SA

    Received BSc degree in Econometrics. Key disciplines:

    - Econometrics and Macroeconometrics
    - Statistics
    - Operations Research
    - Mathematical Analysis
    - Probability Theory and Calculus
    - Data Structures and Algorithms
    - Economics and Macroeconomics
    - Database Management (SQL)
    - Programming (R, Java, HTML)

Licenças e certificados

Projetos

  • Econometric Modelling of Car Insurance Claims Cost (BSc Thesis Project)

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    Non – life insurance pricing using econometric methods. Statistical analysis of claim frequency and claim severity using different rating factors. Claim frequency was estimated using Poisson GLM, Negative Binomial GLM and ZIP models. GLM Gamma model was applied for claim severity data. Using claim frequency and claim severity models risk premiums were estimated.

  • Electricity demand econometric modelling (BSc Course Project)

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    Econometric modelling and forecasting of daily and hourly electricity demand in Lithuania. Electricity consumption was estimated using SARIMAX models using calendar and weather variables as regressors.

Reconhecimentos e prêmios

  • Top 11% at Porto Seguro’s Safe Driver Prediction Kaggle Competition

    Kaggle

    Kaggle Data Science competition for predicting the probability that a driver will initiate an auto insurance claim in the next year. The final model was a stacked model consisting of LightGBM, XGBoost, CatBoost as base models and a Logistic Regression model as a model used for stacking.

  • Top 18 % at Two Sigma Connect: Rental Listing Inquiries Kaggle competition

    Kaggle

    Kaggle Data Science competition for predicting the number of inquiries a new listing receives based on the listing’s creation date and other features. The data was issued by RentHop and contained numerical, text data as well as well pictures of the listed properties.

    My final solution contained an ensemble of XGBoost, LightGBM, GBM, Random Forests and SVM.

  • Top 22% at Predicting Red Hat Business Value Kaggle competition

    Kaggle

    Kagglers were challenged to create a classification algorithm that accurately identifies which customers have the most potential business value for Red Hat based on their characteristics and activities.

    My final solution contained an ensemble of XGBoost, Random Forests, GBM, AdaBoost, Decision Trees, KNN and SVM algorithms.

  • Third - degree diploma in Econometric Competition

    Vilnius University

    Third place in Econometric Competition organised by Vilnius University, faculty of Mathematics and Informatics. Awarded for prediction of the effects of Euro adoption on prices in Lithuania.

  • EU Young Scientist National Competition second - degree diploma

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Idiomas

  • Lithuanian

    Nível nativo ou bilíngue

  • English

    Nível intermediário

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