Michał Żarnecki Portfolio

E-learning course: Machine learning – how to use the potential of data to get better results and make smart decisions

Posted on 3 January 2024  in projects

Course scenario:

1. Definition and applications of machine learning
   • Data deluge and the definition of machine learning
   • Machine learning examples and related fields of knowledge
   • Types of machine learning
2. Machine learning tools used in the course
   • Programs used in the course
   • Orange Data Mining
   • Jupyter Lab
3. Supervised machine learning
   • Machine learning process
   • Data collection, labeling and analysis
   • Feature engineering and division into training and testing sets
   • Model training and evaluation
   • Model export, corrective actions
   • Regression example
   • Classification example

AWS, CNN, langchain, LLM, Machine Learning, NER, NLP, Python, RAG, reinforcement learning, RNN, ScikitLearn, supervised ML, tensorflow, time series, unsupervised ML

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Self-driving vehicle based on tensorflow CNN and RasberryPi

Posted on 26 January 2023  in projects

Responsibilities:
– prepare laboratories for students related to computing vision recognition and training autonomus vehicle using convolutional neural network and tensorflow library
– assemble vehicles using Raspberry Pi 4 Model B, motors and other parts
– configure environment for model training and run model on Raspbian OS
– implement module for object detection

CNN, Machine Learning, OpenCV, Python, tensorflow

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Search engine based on Elasticsearch

Posted on 1 November 2019  in projects

Pictures from companyhouse.de

Search engine based on Elasticsearch

Responsibilities:

• setup multi-node Elasticsearch server structure
• implementing efficient synchronization script
• configuring queries and score functions

Big Data, Elasticsearch, Kibana

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Business network graph based on Neo4j and Sigma.js

Posted on 24 February 2019  in projects

Pictures from companyhouse.de

Web application displaying and allowing to search, filter and export network graph

Responsibilities:

• Setup Neo4j graph db
• Implement data exporter, proxy and cache
• Implement network graph based on sigma.js library
• Support navigation, search and filtering graph
• Implement custom renderers for graph nodes and edges
• Implement nodes distribution algorithm

Elasticsearch, Neo4j, SigmaJS

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Machine Learning – topic modelling for german companies description

Posted on 24 February 2019  in projects

Machine learning model and web service predicting company industry codes based on description.

Responsibilities:

• Implement machine learning model classyfing text into over 100 classes
• German text preprocessing and normalization
• Evaluation and, upgrading model parameters
• Implement web service for real time prediction

Machine Learning, Python, ScikitLearn

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Banking portal

Posted on 30 December 2017  in projects

Banking and finances web portal about.
bs.net.pl

Responsibilities:

• Creating importer script to automatically get all data from old version based on drupal to new project
• implementing module for article publictaion on social pages: facebook, twitter
• Implementing new layout and widgets based

Centos, gulp, Jquery, nodejs, npm, PHP, PostgreSQL

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System to collect networking and finance data about German companies

Posted on 1 July 2017  in projects

Pictures from moneyhouse.de

Web application to collect networking and finance data about German companies.

Responsibilities:

• Implementing data mining tools and parsers using deterministic algorithms and deep learning models
• creating fast and efficient search engine
• carrying out integration with external platforms, APIs, web-services
• working with Selenium, automation of acceptance, integration, functional and unit tests, TDD
• conducting data analysis using Python, R
• server environment setup and configuration

AWS, Cassandra, Data mining, data science, DBMS, Docker, Jenkins, Machine Learning, MongoDb, Neo4j, Neural networks, Nginx, NLP, NumPy, Pandas, PHP, regular expression, ScikitLearn, Server administration, Spacy, text mining, TextBlob, Ubuntu, Yii2

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Veolia – mobile application to ensure equipment reliability

Posted on 1 October 2016  in projects

Picture from programa.pl
Mobile application for Veolia workers to conduct Inspection of important equipment. Application is using web-service to pass data into cebtralized company system.

Responsibilities:

• implementing mobile application
• improving app transfer speed and data reliability
• implementing authentication methods and synchronization
• designing communication protocol
• application releases, updates and meintanance

Android, API

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Consulting ERP system

Posted on 2 February 2016  in projects

Picture from programa.pl

System for the ecology consulting company.

Responsibilities:

• technical project management
• system modules configuration and modification
• implementing system modules and functionalities
• implementation of invoices module
• implemenatation of users managemant and authorisation module
• implementation of electronic data interchange module
• creating and running unit tests and Selenium IDE interface tests
• project optimization, acceleration, conducting HTML/CSS validators tests and server load tests
• collecting data and creating project specification

JavaScript, Laravel, PHP, Symfony

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Mediterraneum

Posted on 29 January 2016  in projects

Picture from programa.pl

ERP/CRM system and mobile app for tour operator.

Responsibilities:

• creating mobile applications for iOS system and iPhone/iPad devices
• implemantation of API services

JavaScript, PHP

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