AI Researcher @ Nokia Bell Labs. Interested on Large Language Models (LLMs), Machine Learning and Data Analysis.https://bsky.app/profile/alonsosilva.bsky.socialhttps://bsky.app/profile/alonsosilva.bsky.social/post/3mk3ertou3s2l🐍 New Python package just dropped! Generate Mermaid diagrams directly from Python code. Simple, fast & powerful. 🔥 #Python #Mermaid #OpenSource22 Apr 2026 11:18 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3mk3ertou3s2lhttps://bsky.app/profile/alonsosilva.bsky.social/post/3md3htlitgc2lIf you are (or know of) a Master's or PhD student looking for an internship, I am proposing the subject: 'Efficient Structured Generation with Grammar-Aware Sampling Techniques.' https://www.dropbox.com/scl/fi/7iwfgc4waiszm15urhp1q/Internship_Proposal_2026.pdf?rlkey=3dnmf7nsr5kh9bfx5wwuncwwx&st=taxikz6u&dl=0 If you're passionate about structured generation, feel free to reach out!23 Jan 2026 10:16 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3md3htlitgc2lhttps://bsky.app/profile/alonsosilva.bsky.social/post/3md2wra6gmk2rLitelines got added to the Awesome LLM constrained decoding repo 😊 It’s great to share this space with more established libraries like Outlines, XGrammar, or Guidance. Link to the Awesome LLM constrained repo: https://github.com/Saibo-creator/Awesome-LLM-Constrained-Decoding Link to litelines: alonsosilvaallende.github.io/litelines/23 Jan 2026 05:10 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3md2wra6gmk2rhttps://bsky.app/profile/alonsosilva.bsky.social/post/3mcrxkqkzas23You can display SQLite database diagrams in @marimo.io using `fastlite` and `graphviz`. Here is a basic molab notebook to play online: https://molab.marimo.io/notebooks/nb_ktbJEaXyet6QEUYiXgVf34 Here is my merged PR 🙂 https://github.com/marimo-team/marimo/pull/778719 Jan 2026 15:31 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3mcrxkqkzas23https://bsky.app/profile/alonsosilva.bsky.social/post/3mcrxhzulys23marimo @marimo.io now supports graphviz Here is a basic notebook to play online: https://molab.marimo.io/notebooks/nb_3xrDJBQEtxscgkKqAo4TCK Here is my merged PR 🙂 https://github.com/marimo-team/marimo/pull/778719 Jan 2026 15:29 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3mcrxhzulys23https://bsky.app/profile/alonsosilva.bsky.social/post/3mbzb5rqxok2rBatch processing using transformers and litelines libraries. In this video, I process 900 prompts in 30 seconds with an RTX A4000 with 16GB of VRAM. https://www.youtube.com/watch?v=7hVUPXxuetk09 Jan 2026 19:46 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3mbzb5rqxok2rhttps://bsky.app/profile/alonsosilva.bsky.social/post/3mbtt7u3gyk2cThe new litelines release should work much better in marimo notebooks. You can try it in a marimo molab: https://molab.marimo.io/notebooks/nb_232GhR7P6XJVxz8opD1MWS/app Here is litelines documentation: alonsosilvaallende.github.io/litelines/ Here is the release changelog: https://github.com/alonsosilvaallende/litelines/releases/tag/v0.1.407 Jan 2026 15:53 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3mbtt7u3gyk2chttps://bsky.app/profile/alonsosilva.bsky.social/post/3mbr6mmiou22cNew blog post: Force a Qwen model not to use Chinese https://alonsosilvaallende.github.io/blog/posts/2026-01-06-Force_a_Qwen_model_not_to_use_Chinese/notebook.html06 Jan 2026 14:39 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3mbr6mmiou22chttps://bsky.app/profile/alonsosilva.bsky.social/post/3mbk2htqfwc2nHow is it possible that a 1.7 billion parameter model succeeds where a model with hundreds or thousands of billions of parameters fails? https://www.youtube.com/watch?v=wmgwuTMauvU03 Jan 2026 18:36 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3mbk2htqfwc2nhttps://bsky.app/profile/alonsosilva.bsky.social/post/3mb7tscmt6225The latest release of Litelines supports batch processing for Transformers library. `pip install --upgrade litelines` Here is a colab to get started: https://huggingface.co/datasets/alonsosilva/litelines-notebooks/blob/main/Litelines_Batch_Processing_Multiple_Choice.ipynb And here is the library documentation: alonsosilvaallende.github.io/litelines/30 Dec 2025 17:10 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3mb7tscmt6225https://bsky.app/profile/alonsosilva.bsky.social/post/3majcc4uwg225My talk, "Processors for Language Models," at PyData Paris 2025 is now available. I discuss my personal project, Litelines, as well as common libraries used to transform unstructured data into structured data. Link to the video: https://www.youtube.com/watch?v=VP4IqFpdPec&t=545s21 Dec 2025 17:58 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3majcc4uwg225https://bsky.app/profile/alonsosilva.bsky.social/post/3m7oxqpvlkc2zI gave a talk about structured code generation for domain-specific languages: Abstract Syntax Trees (ASTs), Concrete Syntax Trees (CSTs), Deterministic Finite Automata (DFA), Regular Expressions (Regex), Pushdown Automata (PA), Context-Free Grammars (CFGs), outlines, guidance, Georges Perec, etc.11 Dec 2025 06:40 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3m7oxqpvlkc2zhttps://bsky.app/profile/alonsosilva.bsky.social/post/3m235oo2h4s2tHere are the starting notebooks I presented at @pydataparis.bsky.social tinyurl.com/litelines-hf And here is the documentation of litelines: tinyurl.com/litelines #PyDataParis https://tinyurl.com/litelines-hf30 Sep 2025 18:27 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3m235oo2h4s2thttps://bsky.app/profile/alonsosilva.bsky.social/post/3lzymgwxncc2cFeatured in marimo newsletter 🤩 https://marimo.io/blog/newsletter-18 [contains quote post or other embedded content]29 Sep 2025 18:14 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3lzymgwxncc2chttps://bsky.app/profile/alonsosilva.bsky.social/post/3lzswroqte22pDoing a slightly better documentation than just the README.md https://alonsosilvaallende.github.io/litelines/getting-started/ Feeback? [contains quote post or other embedded content]27 Sep 2025 12:03 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3lzswroqte22phttps://bsky.app/profile/alonsosilva.bsky.social/post/3lywrpwlh6223Want to visualize the response format constraints on the LLM when working in a Jupyter notebook? Then you might be interested in my new project `litelines`. Litelines lets you visualize the selected path by the LLM. It supports a Pydantic schema as a response format, as well as regular expressions.16 Sep 2025 07:18 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3lywrpwlh6223https://bsky.app/profile/alonsosilva.bsky.social/post/3luzct3swm227The recording of my presentation "Certainty-Guided Reasoning: A Dynamic Thinking Budget Approach" at the Laboratory for Information, Networking and Communication Sciences (LINCS) is now available: https://www.youtube.com/watch?v=8a44tf_JtvU&list=PLlzbq4-mnm8RawkIc1qJlJooznVH6zfXm&index=528 Jul 2025 09:48 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3luzct3swm227https://bsky.app/profile/alonsosilva.bsky.social/post/3lunqbqnna224New blog post: Constrain a language model not to use the letter 'e' https://alonsosilvaallende.github.io/blog/posts/2025-07-23-Force_a_language_model_not_to_use_the_letter_e/A_Void.html In this post, I constrain a small language model (0.6B parameters) with a logits processor to accomplish something GPT-4o fails to do (see https://chatgpt.com/share/68790887-6d9c-800a-a928-ff882e6cb198).23 Jul 2025 19:17 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3lunqbqnna224https://bsky.app/profile/alonsosilva.bsky.social/post/3luargev7522aTIL how to add notebook cells running on @pyodide.org to Quarto projects, such as my blog: https://alonsosilvaallende.github.io/til/posts/2025-07-17-Notebook-Cells/notebook_cells.html It's very easy to change the Pyodide version if needed. Thanks @coatless.bsky.social for this great Quarto extension18 Jul 2025 15:33 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3luargev7522ahttps://bsky.app/profile/alonsosilva.bsky.social/post/3lu3qcguzj22hNew blog post: Understanding Logits Processors https://alonsosilvaallende.github.io/blog/posts/2025-07-16-Understanding-Logits-Processors/Understanding_Logits_Processors.html I start with a basic min length example, then force the model to check its answer, followed by making reasoning models stop thinking once they reach a thinking budget & finally force the model to think longer16 Jul 2025 15:29 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3lu3qcguzj22hhttps://bsky.app/profile/alonsosilva.bsky.social/post/3ltotdopsrs2zNew blog post: Understanding Structured Outputs https://alonsosilvaallende.github.io/blog/posts/2025-07-11-Understanding-Structured-Outputs/Understanding_Structured_Outputs.html This is the power behind structured ouputs libraries such as Instructor and Marvin. I provide a basic example of extraction, a slightly more complex one, then classification, and finally SO in WebAssembly.11 Jul 2025 12:19 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3ltotdopsrs2zhttps://bsky.app/profile/alonsosilva.bsky.social/post/3ltalmhv6kc2dNew blog post: Understanding Function Calling I provide a basic example of FC, then a slightly more complex example by allowing an LM to use Python. I explain the conversational response as a tool trick. Finally, FC in the browser by using WebAssembly https://alonsosilvaallende.github.io/blog/posts/2025-07-05-Understanding-Function-Calling/Understanding_Function_Calling.html05 Jul 2025 20:24 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3ltalmhv6kc2dhttps://bsky.app/profile/alonsosilva.bsky.social/post/3lsswcfcmek2iSo I appear in the Celebration of 100 years of Bell Labs video with our LLM robots (a.k.a. IndustrialGPT) for less than a second :-D https://www.youtube.com/watch?v=Fu_IundP5Ic&t=26s30 Jun 2025 09:58 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3lsswcfcmek2ihttps://bsky.app/profile/alonsosilva.bsky.social/post/3lspa7oiysk2kNew blog post: Understanding LLM Memory https://alonsosilvaallende.github.io/blog/posts/2025-06-28-Understanding-Memory/Understanding_LLMs_Memory.html Using the Marimo extension for Quarto.28 Jun 2025 22:44 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3lspa7oiysk2khttps://bsky.app/profile/alonsosilva.bsky.social/post/3ls2irgk5v22xNew post: Understanding Chat Templates https://alonsosilvaallende.github.io/blog/posts/2025-06-20-Understanding-Chat-Templates/UnderstandingChatTemplates.html20 Jun 2025 16:52 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3ls2irgk5v22xhttps://bsky.app/profile/alonsosilva.bsky.social/post/3lrtcf5wtzk22New post: Understanding Tokenizers https://alonsosilvaallende.github.io/blog/posts/2025-06-17-Understanding-Tokenizers/UnderstandingTokenizers.html17 Jun 2025 20:09 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3lrtcf5wtzk22https://bsky.app/profile/alonsosilva.bsky.social/post/3lrs7b6swzc2zCelebrating Bell Labs’ 100 years anniversary #NokiaBellLabs10017 Jun 2025 09:40 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3lrs7b6swzc2zhttps://bsky.app/profile/alonsosilva.bsky.social/post/3lrqq7bp5s227TIL to do quizzes with JupyterQuiz: https://alonsosilvaallende.github.io/til/posts/2025-06-16-Jupyter_Quiz/JupyterQuiz.html I like this simple way to provide feedback to students. I’m using these quizzes to motivate my kid to learn new things.16 Jun 2025 19:38 +0000at://did:plc:bkqjfuo5jlg5oki6a7bixcud/app.bsky.feed.post/3lrqq7bp5s227