Show HN: Tokyo Land Price AI – RAG App to Explore Tokyo Land Prices

Hi HN,

I built a small RAG application that lets you ask questions about Tokyo land prices and explore them on an interactive map. I mainly built this because I wanted to try making something with an interactive map and real data, and I found Japan’s open land price data interesting to work with.

I’d really appreciate any feedback. I’m just an amateur in data science and machine learning and I feel there’s still a lot of room to improve the accuracy, so I’d especially love to hear any suggestions on how the RAG part could be improved.

Source code: https://github.com/spider-hand/tokyo-landprice-rag