Best of 2023

The blog posts Hacker News loved most in 2023. 402 posts.

AI & Machine Learning
197

AI and Trust

I trusted a lot today. I trusted my phone to wake me on time. I trusted Uber to arrange a taxi for me, and the driver to get me to the airport safely. I trusted thousands of other drivers on the road not to ram my car on the way. At the airport, I trusted ticket agents and maintenance engineers and everyone else who…

201

Do you need a vector database?

Spoiler alert: the answer is maybe! Although, my inclusion of the word “actually” betrays my bias. Vector databases are having their day right now. Three different vector DB companies have raised money on valuations up to $700 million (paywall link). Surprisingly, their rise in popularity is not for their “original”…

203

When gradient descent is a kernel method

Suppose that we sample a large number N N N of independent random functions f i ⁣ : R → R f_i \colon \R \to \R f i ​ : R → R from a certain distribution F \Fc F and propose to solve a regression problem by choosing a linear combination f ˉ = ∑ i λ i f i . \bar{f} = \sum_i \lambda_i f_i. f ˉ ​ = i ∑ ​ λ i ​ f i ​ . For…