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Andreas A. Status: Offline
Nicosia, Cyprus
92% Job Success
Top Rated Plus

AI & Machine Learning Expert | Top Rated Plus

🏆 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗣𝗹𝘂𝘀 (𝗶𝗻 𝘁𝗵𝗲 𝘁𝗼𝗽 𝟯% 𝗼𝗳 𝘁𝗵𝗲 𝗳𝗿𝗲𝗲𝗹𝗮𝗻𝗰𝗲𝗿𝘀 𝗶𝗻 𝘁𝗵𝗲 𝗽𝗹𝗮𝘁𝗳𝗼𝗿𝗺)🏆 ✨ 𝟭𝟬𝟬% 𝗝𝗼𝗯 𝗦𝘂𝗰𝗰𝗲𝘀𝘀 𝗥𝗮𝘁𝗲 ✨ 🚀 𝟱 𝘀𝘁𝗮𝗿 𝗿𝗮𝘁𝗶𝗻𝗴𝘀 𝗮𝗻𝗱 𝟭𝟬𝟬% 𝗰𝗹𝗶𝗲𝗻𝘁 𝘀𝗮𝘁𝗶𝘀𝗳𝗮𝗰𝘁𝗶𝗼𝗻 𝗿𝗮𝘁𝗲 🚀 🏆Experienced Machine Learning expert with extensive years of hands-on experience in model development, data pre-processing, and feature engineering, underpinned by a solid mathematical foundation and a track record of delivering sophisticated analytical solutions. With a rigorous mathematical background, including a first-class honours degree in Mathematics, equipped with the analytical prowess essential for complex model development and optimization.🏆 🏆Holding a Master's degree in Data Analytics with a focus on Machine Learning, achieving one of the top distinctions among peers and showcasing an in-depth understanding of diverse ML applications, from natural language processing to predictive modelling and anomaly detection. Tenacity combined with a relentless pursuit of excellence ensures the delivery of high-quality, accurate, and efficient solutions to intricate ML challenges.🏆 🏆𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗶𝗻𝗰𝗹𝘂𝗱𝗲𝘀🏆 ✅ Proficiency in 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴, 𝗔𝗿𝘁𝗶𝗳𝗶𝗰𝗶𝗮𝗹 𝗜𝗻𝘁𝗲𝗹𝗹𝗶𝗴𝗲𝗻𝗰𝗲, 𝗠𝗮𝘁𝗵𝗲𝗺𝗮𝘁𝗶𝗰𝘀 ,𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀, 𝗣𝘆𝘁𝗵𝗼𝗻, 𝗥. ✅ Strong background in mathematical concepts and statistical analysis. 🚀 𝗠𝗔𝗖𝗛𝗜𝗡𝗘 𝗟𝗘𝗔𝗥𝗡𝗜𝗡𝗚 🚀 ✅𝗖𝘂𝘀𝘁𝗼𝗺𝗲𝗿 𝗖𝗵𝘂𝗿𝗻 𝗣𝗿𝗲𝗱𝗶𝗰𝘁𝗶𝗼𝗻: Developed models using Logistic Regression and Random Forests to predict customer churn, enhancing retention strategies for businesses. ✅𝗙𝗿𝗮𝘂𝗱 𝗗𝗲𝘁𝗲𝗰𝘁𝗶𝗼𝗻 𝗶𝗻 𝗙𝗶𝗻𝗮𝗻𝗰𝗶𝗮𝗹 𝗧𝗿𝗮𝗻𝘀𝗮𝗰𝘁𝗶𝗼𝗻𝘀: Implemented Support Vector Machines (SVMs) and Gradient Boosting Machines (GBMs) to identify fraudulent transactions, reducing financial risks. ✅𝗗𝗶𝘀𝗲𝗮𝘀𝗲 𝗣𝗿𝗲𝗱𝗶𝗰𝘁𝗶𝗼𝗻 𝗠𝗼𝗱𝗲𝗹𝘀: Built predictive models using Decision Trees and Neural Networks to forecast disease likelihoods based on patient data, aiding early medical intervention. ✅𝗖𝗵𝗮𝘁𝗕𝗼𝘁 𝗖𝗿𝗲𝗮𝘁𝗶𝗼𝗻 𝘂𝘀𝗶𝗻𝗴 𝗡𝗟𝗣: Created a chatbot using RNNs (Recurrent Neural Networks) and Transformer Models for accurate text classification and user interaction. ✅𝗦𝗲𝗻𝘁𝗶𝗺𝗲𝗻𝘁 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀 𝗼𝗻 𝗦𝗼𝗰𝗶𝗮𝗹 𝗠𝗲𝗱𝗶𝗮: Applied Naive Bayes and BERT (Bidirectional Encoder Representations from Transformers) to classify sentiment in social media posts, providing insights into public opinion. ✅𝗧𝗶𝗺𝗲𝗦𝗲𝗿𝗶𝗲𝘀 𝗖𝗹𝗮𝘀𝘀𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗳𝗼𝗿 𝗚𝗣𝗦 𝗦𝗽𝗼𝗼𝗳𝗶𝗻𝗴 𝗗𝗲𝘁𝗲𝗰𝘁𝗶𝗼𝗻: Developed a LSTM (Long Short-Term Memory) model to detect GPS spoofing, with results published in an IEEE conference. Bitcoin Price Forecasting: Modeled Bitcoin price trends using Neural Networks and several variables ✅𝗖𝘂𝘀𝘁𝗼𝗺𝗲𝗿 𝗦𝗲𝗴𝗺𝗲𝗻𝘁𝗮𝘁𝗶𝗼𝗻: Utilized K-Means Clustering and Hierarchical Clustering to segment customers based on behavior, driving targeted marketing efforts. ✅𝗖𝗿𝗲𝗱𝗶𝘁 𝗖𝗮𝗿𝗱 𝗙𝗿𝗮𝘂𝗱 𝗗𝗲𝘁𝗲𝗰𝘁𝗶𝗼𝗻: Applied Local Outlier Factor (LOF) and K-Nearest Neighbors (KNN) for anomaly detection in credit card transactions, improving fraud prevention systems. ✅𝗘𝗻𝗲𝗿𝗴𝘆 𝗖𝗼𝗻𝘀𝘂𝗺𝗽𝘁𝗶𝗼𝗻 𝗣𝗿𝗲𝗱𝗶𝗰𝘁𝗶𝗼𝗻: Used LSTM models to forecast energy usage, helping optimize resource allocation and reduce costs. ✅𝗧𝗲𝘅𝘁 𝗚𝗲𝗻𝗲𝗿𝗮𝘁𝗶𝗼𝗻 𝗮𝗻𝗱 𝗦𝘂𝗺𝗺𝗮𝗿𝗶𝘇𝗮𝘁𝗶𝗼𝗻 𝘂𝘀𝗶𝗻𝗴 𝗟𝗟𝗠𝘀: Leveraged LLMs like GPT-3 for generating and summarizing text, improving content creation workflows and automating document generation. 💻𝗣𝗥𝗢𝗚𝗥𝗔𝗠𝗠𝗜𝗡𝗚 𝗔𝗡𝗗 𝗟𝗜𝗕𝗥𝗔𝗥𝗜𝗘𝗦 💻 ✅ 𝗣𝘆𝘁𝗵𝗼𝗻 𝗟𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀: TensorFlow, Keras, PyTorch, Scikit-Learn, XGBoost, LightGBM, Transformers (Hugging Face), Pandas, NumPy, Spacy, SciPy, Matplotlib, Seaborn, Plotly, Statsmodels, NLTK, SpaCy, Gensim, BERT, GPT-3, TextBlob, OpenCV, BeautifulSoup ✅𝗥 𝗟𝗶𝗯𝗿𝗮𝗿𝗶𝗲𝘀: caret, randomForest, e1071, glmnet, MASS, dplyr, tidyr, data.table, readr, stringr, ggplot2, shiny, lattice, forecast, zoo, xts, tseries, tm, quanteda, text2vec, Bioconductor, edgeR, DESeq2.
Work history
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Skills

Skills

  • Mathematics
  • Deep Learning
  • Natural Language Processing
  • Python
  • Machine Learning
  • Feature Engineering
  • Time Series Analysis
  • Deep Neural Network
  • Artificial Intelligence
  • Data Analysis
  • Data Science
  • Classification
  • Regression Analysis
  • TensorFlow
  • Statistics

Testimonials

Endorsements from past clients

"I had the pleasure of working with Andreas on a project for Python and R recently and I can confidently say that he is an extremely talented professional. Throughout the project, he demonstrated excellent communication skills and was always proactive in his approach. Not only did he deliver the project ahead of schedule, but he also exceeded my expectations in terms of the quality of work delivered. I am thrilled with the outcome of the project and look forward to continuing to work with Andreas in the future. I highly recommend him to anyone in need of a reliable, skilled, and proactive professional and a amazing data scientist."

Mila P. | Data analyst
Data science Mar 2023

Verified

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