JosephWang
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Thoughts on data science, machine learning, and research

Nov 15, 2025
: Software, NLP, LLM, AI, Python

Hands-On: `kb-bridge` for Context-Aware Knowledge Base Search

In the previous posts (Part 1, Part 2, Part 3) I showed how we built the context-aware retriever. This post covers how to use kb-bridge, the Python...
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Nov 9, 2025
: Software, NLP, LLM, AI

How I'm Building a Context-Aware Retriever to Boost RAG Quality (Part 3: Evaluation)

In Part 1 and Part 2, I walked through the design and implementation. Now let’s evaluate how well it performs on the ContractNLI dataset and see if...
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Nov 2, 2025
: Software, NLP, LLM, AI

How I'm Building a Context-Aware Retriever to Boost RAG Quality (Part 2: Implementation)

In Part 1, I walked through the design. Now let’s see it in action with a hands-on example using the ContractNLI dataset. I’ll assume chunking is a...
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Oct 25, 2025
: Software, NLP, LLM, AI

How I’m Building a Context-Aware Retriever to Boost RAG Quality (Part 1: Introduction)

In this post, I’ll share how I built a context-aware retriever for knowledge base question answering. It runs on top of an MCP server and can easil...
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Sep 5, 2025
: Machine Learning, Deep Learning, NLP

Hangman with DQN and Transformers

TL;DR. We train a small bidirectional Transformer + Double DQN to play Hangman, restricted to words ≤5 characters (training and inference) to keep ...
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