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    AI ENGINEER | LLM SYSTEMS | SOFTWARE ENGINEERING
    • The silent failure mode in hybrid search

      When one leg returns nothing, the results still look fine

      Posted on September 7, 2026

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      I built a search engine over our issue tracker. About 100,000 tickets. My colleagues use it before they start debugging something, to check whether one of us already fixed the same thing last year. [Read More]
      Tags:
      • rag
      • llm
      • python
    • Introduction to Apache Spark

      How to use the Spark

      Posted on January 3, 2024

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      Using Language and Tools [Read More]
      Tags:
      • data-engineering
      • python
    • Credit Card Fraud Detection Model

      Five classifiers on a 0.17% positive class

      Posted on December 10, 2023

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      Using language and Tools [Read More]
      Tags:
      • machine-learning
      • python
    • E-commerce Customer action analysis using RFM method

      Posted on November 29, 2023

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      Analysis the customer action with RFM method. [Read More]
      Tags:
      • analytics
      • machine-learning
      • python
    • Fraud Detection Model

      AutoEncoder & IF & LOF

      Posted on June 20, 2023

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      [Read More]
      Tags:
      • machine-learning
      • python
    • Semiconductor manufacturing analysis

      From multi-output to single-output

      Posted on June 12, 2023

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      [Read More]
      Tags:
      • machine-learning
      • analytics
      • python
    • Design Big Data Analysis with Apache Spark

      Posted on June 8, 2023

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      Focuses on designing, implementing, and testing a complex Spark application for Big Data analysis. Evaluations will be based on functionality, code quality, efficiency. [Read More]
      Tags:
      • data-engineering
      • python
    • Identification of Different Types of Cell Nuclei in Cancer

      Posted on June 5, 2023

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      Understanding Model Performance and Feature Interpretation using Captum [Read More]
      Tags:
      • machine-learning
      • python
    • Airbnb Clone Coding

      Posted on June 1, 2023

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      This is Full-stack coding. Building Airbnb service with Django and React. It covers the backend and frontend components, including app functionalities and their interaction. [Read More]
      Tags:
      • python
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    HyunSuk Lee  •  2026  •  nockda.github.io  •  Edit page

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