Hello, Welcome back to my personal website

I'm Johnson, Chong Kit Sang

Data Science, AI and Deep Learning Specialist

Johnson's Photo
Johnson's Photo

About Me

There are 8 years focus on I.T. role which mainly working in software development/ Android /iOS Apps, PC software, full stuck development with Web service and cloud Computing. Over 2 years on AI / Data science application development
I completed a Master of Science degree in Information Technology with Stream Artificial Intelligent and Big Data at the Polytechnic University of Hong Kong in 2021. I love to build and develop a good AI/Machine Learning Application for people. It always gives me challenges and opportunity to improve myself and also share the development experience with others. My career focus on developing AI/ Data Science/ Application in future.

My Skills

Here it's my skills from my past working experience and self-project

moble apps image

AI and Deep Learning Application

Algorithm :
Linear /Logistic regression, SVM, KNN, CNN, RNN, GRU, LSTM, MLP, K-mean Clustering, DBSCAN, Naive Bayes, Decision tree, Ensemble Learning, Transfer Learning, Random Forest , PCA, EDA, Data Augmentation Method: Semi-Supervised learning, unsupervised/supervised machine learning, Feature Engineering
Application :
classification regression (price predict), NLP, Chatbot, Computer Vision GPU Programming: Rapids, Numba, CUDA, Exploratory data analysis (EDA): DataPrep, Panada Application: classification, regression (price predict), NLP, Chatbot, Computer Vision.

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Computer Vision Application

Algorithm :
CNN, Image Segmentation (U-net), face Detection, Neutral Style Transfer, Canny detector, Blob detection, 3D point Cloud, Depth Map (TOF / Stere Camera) , Feautre Extraction (Shape, geometry (PHOG), Texture(FWLBP), Faster R-CNN, Mask R-CNN, YOLO,, GAN, SSD, Color Filter, OpenCV, Image Argumentation , MobileNet , DarkNet, Coco dataset, Tensorflow Object detection API, SLAM, Open Image Dataset, Detectron2, DeepSort
Application :
Real time object detection, Body Gesture, Face reorganization, Object counting, People Counting, Object Tracking, OCR

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Natural language Processing Application

Algorithm :
N-Gram, Tokenization, stemming, TF-IDF, Word2Vect, Chinese Text Segmentation, Text Representation, Cosine Similarity, IR-base Question Answer, Knowledge-base Question Answer, Conversion QA, SVM, Part of Speech Tagging, Hidden Markvo Model (HMM), BERT , Seq-to-Seq , Word Embedding , Context-free grammar (CFG), Chomsky normal form (CNF) (CYK Recognition ), Constituency/ Dependence parser , Information Extraction
Application :
Question Answer machine, Chatbot, translation, Sentimental Analysis , Emotion Analysis, Text Ranking, Recommend system, Multiple choice Question Answering , Reading Comphesion

machine learning image

Data Science Application

Framework : pandas, numpy, pyspark
Method :
Exploratory Data Analysis(EDA), Time-Series Analysis, EWMA, Statsmodels, Statistical Analysis, Data visualization, Machine learning/ Deep Learning, Data Preprocessing (data wangling/ Data Cleaning), Web scraping, Feature Extraction/Feature Engineering, Predictive Analysis

Working Experience

  • System Analyst -AI (contract)

    Jan 2024 to Mar 2024

    Automated System (HK) Ltd.

    Handle AI+ RPA HK Government Tender project
    System Analysis and Design (SAnD) for government tender requirement

  • AI Engineer (Team Leader)

    Apr 2022 to Oct 2023

    Prodigy Electronics (HK) Ltd.

    AI Application /Algorithm research and development (computer vision, NLP, LLMs/ Data Science/Analytics)
    Design and development AI/Machine Learning/Deep learning model for AI/data analysis application
    Bid, development HK Government Tender AI Project and EMSD HK government Wish AI project
    IoT Sensor AI Data analytics on Cloud (AWS)
    Design AI Big Data Analysis/data collection Architecture (Serverless and Microservice)

  • AI Specialist

    Jun 2021 to Jan 2022

    MegaSoft Ltd.

    AI Application/Algorithm Development (Computer Vision)
    Edge Computing (AI with Nvidia Jetson/ raspberry pi)
    Build Machine Learning Model for AI project
    Containerized Machine Learning (Docker)
    Data science / Data Analysis
    Full stack development (Both frontend/Backend)

  • Mobile Application Developer

    Apr 2020 to May 2021

    Actimirror Corporation Ltd

    Write (Android apps) for Smart Mirror Application
    Manage AWS service (S3)
    AWS Iot service interface (MQTT)
    Design and Interface Restful API with AWS and Android Apps
    Human body sensor Data Analysis, Database design
    UX/UI design

  • Android Developer

    Jan 2018 to Nov 2019

    Spectra Technologies Holding Company Ltd.

    Write (Android apps) for Smart POS terminal Payment Application
    Write Android apps for Visa/Master, American Express , QR code Credit Card payment method
    Write Android Apps with IOS8583 finical protocol for Bank Payment Gateway protocol

  • Software Engineer

    Jul 2016 to Dec 2017

    RTX Hong Kong Ltd

    Write Bluetooth (CSR) Handset configure driver
    USB/Bluetooth headset firmware and PC tool Development
    Android DECT phone Apps development

Education

  • Master of Science in Information Technology (Stream in A.I and Big Data)

    Sep 2019 to July 2021

    Hong Kong Polytechnic University

  • Master of Science in Electronic and Information Engineering

    Sep 2005 to Dec 2009

    Hong Kong Polytechnic University

  • Bachelor of Science In Electronics

    Sep 1998 to Dec 2003

    Open university of Hong Kong

Professional Qualification

  • IBM AI Engineering Professional Certificate(V2)

    Sep 2024

    IBM Certificate Link

  • IBM Data Science Professional Certificate

    May 2023

    IBM Certificate Link

  • TensorFlow Developer Professional Certificate by DeepLearning.AI

    Nov 2023

    DeepLearning AI Certificate Link

  • Machine Learning Specialization by DeepLearning.AI on Coursera

    Oct 2023

    DeepLearning AI Certificate Link

  • Deep Learning Specialization by DeepLearning.AI on Coursera

    Oct 2022

    DeepLearning AI Certificate Link

  • Generative AI with Large Language Models by Deep learning AI and AWS

    Aug 2023

    AWS Certificate Link

  • Microsoft Certified Azure AI Fundamentals

    May 2022

    MicroSoft Certificate Link

  • Professional diploma in project management and corporate outsourcing

    Sep 2013 to July 2014

    Chinese University of Hong Kong (School of continuous study)

Online Course

  • Introduction to Statistic by Stanford Online

    Aug 2024

    Stanford Online Certificate Link

  • IBM Generative AI for Data Scientists Specialization

    Apr 2024

    Stanford Online Certificate Link

  • Machine Learning Engineering for Production (MLOps) Specialization by DeepLearning.AI

    Jan 2024

    DeepLearning AI Certificate Link

  • Mathematics for Machine Learning and Data Science Specialization by DeepLearning.AI

    Aug 2023

    DeepLearning AI Certificate Link

  • TensorFlow Data and Deployment Specialization by DeepLearning.AI

    Feb 2023

    DeepLearning AI Certificate Link

  • AI for Everyone By DeepLearning.AI on Coursera

    Oct 2022

    DeepLearning AI Certificate Link

  • Modern Application Development with Python on AWS Specialization by Amazon Web Services

    Oct 2022

    AmazonCertificate Link

Certificate With Badges

A.I./Data Science Project

Here it's my ai/machine learning/data science related project example. I interersted continues build the wide applciation for learning the new skill for I.T application.

Over 30+ AI/Data science project in My GitHub and Kaggle competition website (go to link for detail)

GitHub Code Repository
Kaggle Competition

Some of AI/Data science Project List as below

Title: People Counting (Data science, AI forecasting, Full Stack)

Objective:

  • AI model predict people flow ( 7 days , next 24/48 hours ), statistical Analysis, Anomaly detection
  • Time Series Analysis/Forecasting, AWS, MERN Stack, Data Engineering, Dashboard (Dash), EDA
  • Title: Google- Build with AI HackAthon

    Objective:

  • Use Gemini LLM model ( Vetrix AI) API build Gen AI application for chatbot base AI Mental Analysis (depress, Anxiety)
  • GitHub Code Repository
    Competition Detail

    Title: Kaggle – AI Mathematical Olympiad

    Objective:

  • LLM model solving Math problem, RAG, prompt engineering, Fine tuning, Gemma, vectorDB
  • Code Repository
    Kaggle Competition Detail

    Title: Kaggle - Optiver Trading at the Close

    Objective:

  • Build AI model to predict stock price, Ensemble Learning, K-Fold cross-validation, LSTM, EDA, Feature Engineering
  • Code Repository
    Kaggle Competition Detail

    Title: AI-Bank Statement document automated by LLM and Personal financial analysis

    Objective:

  • used LLM Model for the purpose of assisting the user obtain fully record from bank statement by RAG technique.
  • Convert the bank statement from unstructured document format into structured format. Store the records into database.
  • Use LLM nature language to query the bank statement and give us the report
  • Code Repository

    Get In Touch

    If you interest Machine Learning and Data science Application.

    Love AI, Data science/ Big Data/ Machine learning/Computer Vision/NLP Application Development as much as? Let's talk with me





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    © 2020 Johnson Chong.