Portofolio

Welcome to Yogi’s Portfolio.

A dedicated GIS specialist with an insatiable curiosity for the latest developments in spatial and IT realms. My journey encompasses valuable internship experiences spanning gold mining, consulting, and current engagement with a forestry firm. Beyond professional pursuits, I channel my passion through various avenues: contributing to my website, Medium articles, and curating educational content on YouTube.

About Me

NameI Made Yogi Winardhana
EducationBachelor’s degree in Engineering, Gedesy Engineering (ITN Malang).
LocationBali, Indonesia
WA+62-8154-7618-733
Emailyogik.winardhana@gmail.com
LinkedInimadeyogi-winardhana
YoutubeGeosai
WebsiteGeosai
Medium@donjoe826

Projects

Project 1: Landcover Analysis using Google Earth Engine (GEE)

Description:
Perform a land cover analysis using Google Earth Engine (GEE) with the Random Forest machine learning algorithm. In this project, I am conducting a comprehensive land cover analysis for a designated production forest concession located in Sabah, Malaysia. This entails selecting representative samples from various land cover classes, assessing accuracy through the utilization of a confusion matrix, and subsequently exporting the results in TIFF format for subsequent processing within ArcGIS.

Key Skills:
remote sensing, spatial programming, spatial analysis, and machine learning.
Tools and technologies:
GEE, JavaScript, ArcGIS, and Random Forest.
Links:
landcover analysis with GEE

// create classifier with Random Forest
var classifier= ee.Classifier.smileRandomForest(10).train({
features: training,
classProperty: 'landcover',
inputProperties: veg_composite.bandNames()
});
Landcover Analysis using GEE

Project 2: Administer PostGIS & Geoserver for Personal Use Independently

Description:
Administer a PostgreSQL server on a personal Virtual Private Server (VPS) for educational purposes. This server is hosted on a Contabo VPS and serves as the platform for sharing geospatial data featured on my website.

Key Skills:
geospatial, database, and SQL.
Tools and technologies:
PostgreSQL, PostGIS, and Linux.
Links:

Self Manage PostgreSQL for Learning Purpose
Self Manage Geoserver for Learning Purpose
Self Manage Virtual Private Server (VPS). Access through Command Line Interface (CLI)

Project 3: Engage in Practical Machine Learning Activities

Description:
I recently completed a Data Analyst course on Geeklurn, where I acquired valuable skills. I learned how to integrate machine learning techniques into my skill set, which will enable me to address and resolve complex geospatial challenges in the future.


Key Skill:
spatial programming, machine learning, and deep learning.
Tools and technologies:
Python, SVM, linear regression, Convolutional Neural Networks (CNN), and statistics.
Links:
– Data science training
– Machine learning excersie
– CNN Project

Project 4: WebGIS Development

Description:
For my final thesis, I undertook the project of developing a WebGIS using open-source software. This WebGIS platform has the capability to not only visualize data but also perform attribute and spatial queries, enhancing its functionality and usefulness


Key Skills:
Back-end programming, webGIS, and SQL.
Tools and technologies:
Php, Laflet, and PostGIS.
Source:
– Video demonstration

Project 5: Transform JSON Data Into A Shapefile Format

Description:
I have implemented a Convolutional Neural Network (CNN) model to detect specific objects of interest. The output from this CNN model is stored in a JSON file. Leveraging an R Script, I perform the conversion of this JSON data into a shapefile format, facilitating subsequent analysis and manipulation within QGIS.


Key Skill:
Deep Learning, CNN, image analysis.
Tools and technologies:
Robo Flow, Python, R.
Source:

RStudio Installed on Self-Managed VPS
R Script to Convert JSON to Shapefile

Thank You for Visiting!

Thank you for taking the time to explore my portfolio.
I hope you’ve gained insight into my passion for spatial data analysis and the value I bring to the field.
Whether you’re interested in collaborating on a project, discussing job opportunities, or simply want to connect, I would love to hear from you. Feel free to reach out via email or connect with me on LinkedIn.


Let’s work together to tackle geospatial challenges, unlock new insights, and make a positive impact on the world through the power of data.