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joshua_s_penman

HN member
Joined
Thu, Feb 13, 2025, 11:30 PM UTC
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3
Public activity
4 items

About joshua_s_penman

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Recent public activity

  1. story
    Show HN: Semantic Overlays – an NX bit for LLM prompt injection (live demo)

    I've built a new method for steering LLMs called Semantic Overlays, small trained adapters on a frozen model which change how it perceives a piece of its context. The most readily …

  2. comment
    Comment #45067134

    > interesting, so you think the issue with the above approach is the graph structure being too rigid / lossy (in terms of losing semantics)? Yeah, exactly. >And embeddings are also…

  3. comment
    Comment #45066582

    this is fundamentally organized by popularity, though

  4. comment
    Comment #45066398

    The thing is — for very long documents, it's actually pretty hard for humans to find things, even with a hierarchical structure. This is why we made indexes — the original indexes!…