Camiloalejan.github.io

CAMILO PORTFOLIO

Jr. Data Science Portfolio

DATA SCIENCE:

Project 1: Credit Card Fraud Detection

• Explored and analized a non-explicit dataset.

• Compared the accuracy of two classification models (KNN , Random Forest)
• Analized metrics to evaluate performance

• Optimized Random Forest training

Project 2: Credit Card Fraud Detection

• Data extraction and cleaning. In addition, creation of tables with relevant information, which were joined from the original tables of the cleaned database.
• Exploration of data in order to perform an analysis that details the information in each table. Visualizations were used to contemplate customer behavior from their data, helping me to draw conclusions and form profiles of each user according to their status.
• Training Machine Learning models to classify customers based on their status according to the economic loans received from the bank, and predict which customers will successfully complete their payments and which will become debtors.

Project 3: EDA and Clustering

The following document shows the data of a (seemingly) office supply company. An EDA was made in order to analyse the features of the dataset by using visualizations such as: histograms, time series, bar charts and tables. The modelling part includes a clustering model, using the “Elbow Method” and decomposing the components with the PCA functions.

NEURAL NETWORKS:

Project 1: ADALINE - Algorithm

• Adaline Algorithm in it’s stochasthic, mini badges and badges form. This one is just an example of how Adaline works and 3 different ways to work with it.

• Adaline algorithm as an Audio Filter.

• Hardware input linear Regression:

• Hardware input filter prediction:

Project 2: Kalman - Algorithm

• Linear Regression

• Nonlinear Regression

• And as a classification algorithm

Project 3: Hopfield - Algorithm

• Image classification and recognition:

Project 4: Multilayer Perceptron - Algorithm

• XOR Classifier:

• Aproximation of functions:

• Non-Linear Regression:

• Color Clasifier:

• OCR - Number Classifier:

SQL Server Queries

• COVID Query Project
• Activies done during certification as Data Analyst