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tacoooooooo
searching PlanetScale…
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8 ms
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31.
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by
tacoooooooo
9mo ago
This is an interesting read, and while I support being nice to every_thing_ in principle. Most of the research into this actually shows that being mean yeilds better results
32.
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by
tacoooooooo
9mo ago
This looks pretty cool. I keep seeing people (an am myself) using claude code for more an more _non-dev_ work. Managing different aspects of life, work, etc. Anthropic has built the best harness right now. Building out the UI makes sense t
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Traditional NLP is not dead
(alex-jacobs.com)
1 points
by
tacoooooooo
9mo ago
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0 comments
34.
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by
tacoooooooo
9mo ago
fizsh sounds really cool, but the last commit was 7+ years ago. do you run into any issues? https://github.com/zsh-users/fizsh
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by
tacoooooooo
9mo ago
not sure there are any models yet that you can get the quality out you need to do this and run on your mbp
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by
tacoooooooo
9mo ago
This is a wildly out of touch thing to say
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Can't Beat BERT–comparing small LLMs and fine-tuned encoders on classification
(alex-jacobs.com)
3 points
by
tacoooooooo
9mo ago
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1 comments
38.
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by
tacoooooooo
9mo ago
correct afaik :( https://github.com/timescale/pgvectorscale/issues/113
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by
tacoooooooo
9mo ago
the main issue with pgvectorscale is that it's not available in RDS :(
40.
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by
tacoooooooo
9mo ago
This probably doesn't count as an "app" in terms of what you're looking for, but was a fun little project https://alexjacobs08.github.io/lobsters-graph/ (i built this in search of a lobste.rs invite
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by
tacoooooooo
9mo ago
This looks awesome. ai-sdk is an excellent library. excited to see it proliferating
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Show HN: The Lobste.rs invitation tree, visualized
(alexjacobs08.github.io)
5 points
by
tacoooooooo
9mo ago
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1 comments
43.
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by
tacoooooooo
10mo ago
Standard benchmarks (like BEIR/MS MARCO) are great, but they are likely already in distribution for foundation models training sets, and crucially, they lack the complex, structured metadata needed to test real-world filtering scenario
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Show HN: Generate a 1M-document RAG eval dataset from a single prompt
(alexjacobs08.github.io)
2 points
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tacoooooooo
10mo ago
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1 comments
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Show HN: Dataset Factory – Generate RAG evaluation datasets from a text prompt
(alexjacobs08.github.io)
1 points
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tacoooooooo
11mo ago
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0 comments
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Generate RAG evaluation datasets from a single prompt (1K to docs)
(alexjacobs08.github.io)
2 points
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tacoooooooo
11mo ago
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0 comments
47.
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by
tacoooooooo
11mo ago
it's an odd choice. I'd be curious why they picked that. it's not the cheapest, most expensive, best, or worst. It does have a relatively large context window, and ime is very good at format adherence
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by
tacoooooooo
11mo ago
well said! we demo'd milvus (or zilliz i should say,) and while we didn't ultimately go with it--it seems like a great option
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by
tacoooooooo
11mo ago
Author is a human :). Performance and semantic accuracy are both important. The point about pre-filtering _youre still searching millions of vectors_ is important because once you apply a filter you can no longer use your vector index. And
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by
tacoooooooo
11mo ago
pgvectorscale is not available in RDS so this wasnt a great solution for us! but it does likely solve many of the problems with vanilla pgvector (what this post was about)
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by
tacoooooooo
11mo ago
this is at the expense of precision/recall though isn't it?
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by
tacoooooooo
11mo ago
i discuss that specifically! > The problem is that index builds are memory-intensive operations, and Postgres doesn’t have a great way to throttle them. You’re essentially asking your production database to allocate multiple (possibly do
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by
tacoooooooo
11mo ago
guess it depends on your scale? for some, 10+ GB of RAM being consumed on an index build is > 25% of the DB's RAM. apply that same proportion to your setup and maybe it'll make more sense
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by
tacoooooooo
11mo ago
for sure people are running pgvector in prd! i was more pointing at every tutorial iterative scans are more of a bandaid for filtering than a solution. you will still run into issues with highly restrictive filters. you still need to unders
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by
tacoooooooo
11mo ago
> Anyways, all this vector stuff is going to fade away as context windows get larger (already started over the past 8 months or so). We're searching across millions of documents, so i doubt it
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by
tacoooooooo
11mo ago
I mention this towards the end of the post. it looks like a good solution, but it's not available on RDS
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tacoooooooo
11mo ago
how are all of the mentioned issues resolved?
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by
tacoooooooo
11mo ago
some fair points points on the specifics. > maintenance_work_mem sure, but the knob existing doesn't solve the operational challenge of safely allocating GBs of RAM on prod for hours-long index builds. > REINDEX CONCURRENTLY this
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tacoooooooo
11mo ago
We actually looked into vectorchord--it looks really cool, but it's not supported by RDS so it is an additional service for us to add anyways.
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The Case Against PGVector
(alex-jacobs.com)
381 points
by
tacoooooooo
11mo ago
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137 comments
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