Dr. Özhan Kayacan

Freiberuflich, Data Scientist, Freelancer
Leipzig, Germany

Fähigkeiten und Kenntnisse

Programming
Computer Simulation
Physics
Engineering physics
Git-Github
Artifical Intelligence
Python
MatLab
Data Analysis
Agile Development
MS Office
Data Science
Machine Learning
Tableau
Microsoft Power BI
Amazon Web Services (AWS)
Microsoft Excel
Deep Learning
AWS Cloud
SQL
Python pandas
NumPy
scikit-learn
Jupyter
Statistical Analysis
Research and Development
TensorFlow
Team work
Leadership
Reliability
Analytical skills
Problem Solving
Responsible
Motivation
independent
Enthusiasm
problem solving skills
open minded

Werdegang

Berufserfahrung von Özhan Kayacan

  • Current 2 years and 5 months, since Jan 2024

    Data Scientist

    Freelancer

  • 1 year, Jan 2023 - Dec 2023

    Data Scientist & AI & Big Data | Machine & Deep Learning Engineer

    ScaDS.AI (Center for Data Science, AI and Big Data)

    • Applying Machine & Deep Learning algorithms to perform Monte Carlo simulations and statistical analysis of the collective behavior of swarms/agents • Using Logistic Regression, KNN, Random Forest, Decision Tree, Bayes, Support Vector Machine, ANN, CNN, and RNN) to analyze the obtained data from computer simulations • Implementing Python codes using Jupyter, Pandas, Numpy, Scikit-learn, PyTorch

  • 1 year and 2 months, Feb 2022 - Mar 2023

    Internship Project - Data Scientist

    Mynes Home LTD, 4 Union Street, Barnet, Hertfordshire, EN5 4HZ

    • Data extraction using SQL and Excel, implementing pre-processing • Statistical modeling using Python (Jupyter, Pandas, Numpy, Scikit-learn, PyTorch) • Data visualization, building dashboards using Excel, PowerBI, and Tableau • Using Machine Learning models such as Logistic Regression, KNN, Random Forest, Decision Tree, Bayes, Support Vector Machine, ANN, NLP, etc. • Time Series Analysis, Cohort Analysis, Basket Analysis, A/B test, Basket Analysis, Churn Prediction Analysis, etc.

  • 3 years and 3 months, Oct 2019 - Dec 2022

    Research Scientist

    University of Leipzig

    • Developed and implemented swarm & artificial intelligence (AI) approach using pheromone-dependent interactions for studying predator-prey relations using Python and C++ • Application of Machine Learning algorithms to perform statistical analysis of the obtained data based on the pheromone-dependent model, Python used to perform analysis • Supervised students as a secondary reviewer in MSc Thesis

  • 1 year, Oct 2018 - Sep 2019

    Data Analyst

    Iztech IT Project

    • Identifying data using SQL, Excel, Google Sheets, Python • Preparation of data for analysis (EDA) • Preprocessing using Excel, SQL, and Python • Time Series Analysis, Profitability Analysis, Seasonality Analysis, Basket Analysis, Advertising A/B Test, Effect Size Analysis • Visualization of data using Excel, Tableau, and Power BI

  • 2 years and 2 months, Sep 2016 - Oct 2018

    Data Scientist

    Yali Infotech

    • Extracting data using SQL, MS Excel, and Python • Preparation of data for analysis (EDA) • Preprocessing using Python (Jupyter, Pandas, Numpy, Scikit-learn, PyTorch) • Cohort Analysis, A/B tests, Churn Prediction, Basket Analysis, Seasonality Analysis, etc. • Logistic Regression, KNN, Random Forest, Decision Tree, Näive-Bayes, Support Vector Machine, ANN, CNN, etc. • "Sentimental Analysis", and "Returns Analysis" with NLP • Data visualization with Excel, Tableau, and Power BI

  • 14 years and 2 months, Aug 2002 - Sep 2016

    Associate Research Scientist

    Manisa Celal Bayar University

    • Developed and implemented AI-based models • Application of Machine Learning models to perform statistical analysis of the obtained data based on the models used in projects • Developed models for image segmentation, luminescence, liquid crystals, and nucleation-growth phenomena • Solid knowledge of Mathematical Physics, Statistical Physics, and Computational Physics • Supervised students in M.Sc. Thesis (2 students) and Ph.D. Thesis (2 students) • 29 publications in SCI journals

  • 4 months, May 2005 - Aug 2005

    Postdoctoral Researcher

    Alma Mater Studiorum - Università di Bologna

    Performed computer simulations for defects in nematic liquid crystal displays

Sprachen

  • English

    C1 (Fließend)

  • Turkish

    C2 (Verhandlungssicher / Muttersprachlich)

  • German

    B1-B2 (Gute Kenntnisse)

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