/Data-Science-Portfolio

Welcome to Guilherme Yuji Fernandes' Portfolio. Here you will find data science projects with problems that many companies are trying to solve nowadays. The solutions given to them were obtained through data.

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Data Science Portfolio

In this portfolio you will find data science projects with problems that many companies are trying to solve nowadays. All projects were developed by me. Datasets were obtained from Kaggle website.

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In each project was done an end-to-end project, including the following sequence of steps:

  • Introduction of the project, giving all the necessary information for the understanding of the project, and a description of the variables used.
  • Import of libraries used on the projects.
  • Import of the data and getting some basic information of the dataset.
  • Data cleaning of the dataset, checking missing values and outliers.
  • EDA to plot some charts of the variables, getting useful insights of the problem with the information obtained from the dataset.
  • Feature Engineering to adjust some information shown on the dataset to make it possible to run a machine learning algorithm and also doing the feature selection.
  • Presets of the model to help the running of the machine learning algorithm, choose of the metrics and fuctions for better visualization of the results given from the models.
  • Machine Learning Models, with a list of all algorithm that it will be tested on project and it will be chosen the one with the highest score of the metrics chosen.
  • Conclusion of project, summarization of all useful information obtained on project and what action need to be taken to improve the results and revenue of the company.

Projects

Classification

  • Bank Client Churn: In this project was analyzed all the information given from the dataset and also it predicts if a client will churn ou not.

  • Bank Marketing Campaign: In this project was analyzed the data that most influences a client to make a deposit to the bank. A marketing strategy was done and also a prediction if of a cliente deposit was made.

Regression

  • Used Car Market: In this project it was studied factors that impacts the price of an used car and how they are associated. It was also made a model to predict the price of an used car.

EDA

  • Supermarket Sales Analysis: In this project was analyzed the correlation between products, days of week, type of customer, branch, payment method and much more.

App

  • Data Science App: In this deployed app, you can perform a fast EDA of your classification or regression task to speed up your insights.