Alexander Ocsa @aocsa
Staff Software Engineer at @voltrondata. open-source: @ApacheArrow, @Pytorch, @blazingsql, @rapidsai, @laboratoriala aocsa.dev Arequipa / Joined May 2011-
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This new DeepMind research shows just how broken vector search is. Turns out some docs in your index are theoretically incapable of being retrieved by vector search, given a certain dimension count of the embedding. Plain old BM25 from 1994 outperforms it on recall. 1/4
Good read for understanding modern day system programming language wars especially from a context of a C programmer
CMU's course on Advanced Database Systems is one of the best. New to databases? Start with the introduction - see quoted post. 15721.courses.cs.cmu.edu/spring2024/
CMU's course on Advanced Database Systems is one of the best. New to databases? Start with the introduction - see quoted post. 15721.courses.cs.cmu.edu/spring2024/ https://t.co/rIiqRSrH8y
LLM inference engine using C++ and CUDA from scratch without libraries. andrewkchan.dev/posts/yalm.html
Today we're putting out an update to the JAX TPU book, this time on GPUs. How do GPUs work, especially compared to TPUs? How are they networked? And how does this affect LLM training? 1/n
I think I found a based Substack on low-level GPU programming by accident. He has some extensive articles on CUDA programming, building LLM inference engines, looking inside GPUs and much more. even the name is cool: "From Scratch". bro.
Finally figured it out well enough to write it down. zed.dev/blog/why-llms-…
Wrote up a more detailed analysis of gpt-oss, how far we've come since GPT-2, and how it compares to Qwen3: magazine.sebastianraschka.com/p/from-gpt-2-t…
Looking for a cheaper, open source alternative to agentic RAG? Try multi-vector retrieval with Reason-ModernColBERT. Most search systems compare one big summary vector per document. Multi-vector retrieval is different - it keeps separate vectors for each word or phrase, then…
Concurrent Hash Table with Fine Grained Locking : A thread-safe hash table with per-bucket locks for low contention, suited for high-performance systems like databases or caches.
BREAKING: A new open-source AI just made 3D design radically faster. It’s called PartCrafter and it turns a single 2D image into detailed, geometrically distinct 3D meshes. No manual segmentation. No CAD software. Here’s why it matters:
This guy literally wired Claude into Blender, and now it’s generating wild 3D scenes
There’s a new breed of GenAI Application Engineers who can build more-powerful applications faster than was possible before, thanks to generative AI. Individuals who can play this role are highly sought-after by businesses, but the job description is still coming into focus. Let…
Anthropic just dropped a free course on building AI Apps with MCP. Learn to connect AI Agents to external data sources like GitHub, Google Docs, local files using MCP. 100% free.
Google has quietly open-sourced a full-stack research agent stack, powered by Gemini and LangGraph. It's capable of multi-step web search, reflection, and synthesis. While not confirmed to match Gemini’s production backend, it's strikingly close. github.com/google-gemini/…
How Your Code Runs: The Journey of a Program Through the CPU This blog post aims to explain the inner workings of the CPU by exploring its architecture, and execution flow, and illustrating these concepts with a practical code example.

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Sergio Barquilla @SBarquillamagia
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yashaswi. @PixPerk_
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Tesoros Naturales @Naturatesoros
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正思 芷樱 @b758ZTNMk7g4sl
0 Followers 653 Following 現在、アルバイトの募集をしています。勤務時間に制限はありません。日給5, 000円~50,00 0円!在宅勤務で、給与は日払いです。 問い合わせ担当者LINE追加:【https://t.co/Ud8bSVDtoF】
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Gents Outfit - Fashio... @GentsOutfitFeed
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Sophí 💫 @Laabaabee
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El Enmascarado 𝕏 |... @ElEnmascarado_X
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Juan Pablo Dos Santos... @juanpablodsf
2K Followers 2K Following Padre 👨👧👦. Dr en Derecho. Catolico. Funcionario del Estado por Concurso Público. Presidencia del Uruguay. 🌱🌻☀️. Que no falten los corazones generosos 🩵
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https://mastodon.soci... @vzverovich
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Charlie L ⚡️ @charliesbot
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elvis @omarsar0
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@ericniebler.bsky.soc... @ericniebler
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posts of kittens @postsofkittens
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536K Followers 1 Following These cats with pawerful aura|| we don't own any content || Please Dm for credit ||
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4.3M Followers 13K Following La más grande cuenta de frases en español. Frases, sarcasmos, reflexiones y consejos que relatan tu vida día a día. Disfruta leyendo.
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AGRONOMME 🇷🇼 @Agronomme_
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Y @U7iio7
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56K Followers 14 Following Daily tips on Health, Fitness & Beauty | DM for Credit/Removal
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a0.dev @a0_dev
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311 Followers 5 Following OXMIQ is rearchitecting GPUs from Atoms to Agents™ for next-gen AI, gaming & graphics. IP that scales from silicon to zettascale. visit https://t.co/H4b1y93Xtl for more info
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1K Followers 216 Following Designer at @37signals · Father · Teacher · Gamer · LEGO lover · Has a broken funny bone · Thinks Space is The Place 🚀 · Living in Germany 🇩🇪 · (he/him)
Dating | Seduction | ... @SeductionSkillz
94K Followers 35 Following Teaching Men Proper Dating Tactics & Seduction Tips | DM for Credit/Removal