Clara Chong, Author at Towards Data Science https://towardsdatascience.com Publish AI, ML & data-science insights to a global community of data professionals. Mon, 15 Dec 2025 10:30:00 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.3 https://towardsdatascience.com/wp-content/uploads/2025/02/cropped-Favicon-32x32.png Clara Chong, Author at Towards Data Science https://towardsdatascience.com 32 32 Lessons Learned from Upgrading to LangChain 1.0 in Production https://towardsdatascience.com/lessons-learnt-from-upgrading-to-langchain-1-0-in-production/ Mon, 15 Dec 2025 10:30:00 +0000 https://towardsdatascience.com/?p=607893 What worked, what broke, and why I did it

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]]> AI Engineering and Evals as New Layers of Software Work https://towardsdatascience.com/ai-engineering-and-evals-as-new-layers-of-software-work/ Thu, 02 Oct 2025 15:30:00 +0000 https://towardsdatascience.com/?p=607325 How to maintain reliability in inherently stochastic systems

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]]> A Deep Dive into RabbitMQ & Python’s Celery: How to Optimise Your Queues https://towardsdatascience.com/deep-dive-into-rabbitmq-pythons-celery-how-to-optimise-your-queues/ Wed, 03 Sep 2025 04:35:15 +0000 https://towardsdatascience.com/?p=607017 Key lessons I’ve learned running RabbitMQ + Celery in production

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]]> How to Level Up Your Technical Skills in This AI Era https://towardsdatascience.com/how-to-level-up-your-technical-skills-in-this-ai-era/ Tue, 29 Apr 2025 19:53:46 +0000 https://towardsdatascience.com/?p=605837 AI tools & vibe coding have hidden tradeoffs. Here's how to use them wisely and why open source is a great secret weapon.

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]]> How LLMs Work: Reinforcement Learning, RLHF, DeepSeek R1, OpenAI o1, AlphaGo https://towardsdatascience.com/how-llms-work-reinforcement-learning-rlhf-deepseek-r1-openai-o1-alphago/ Thu, 27 Feb 2025 21:21:24 +0000 https://towardsdatascience.com/?p=598500 Part 2 of the LLM deep dive

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]]> How LLMs Work: Pre-Training to Post-Training, Neural Networks, Hallucinations, and Inference https://towardsdatascience.com/how-llms-work-pre-training-to-post-training-neural-networks-hallucinations-and-inference/ Tue, 18 Feb 2025 17:39:29 +0000 https://towardsdatascience.com/?p=598060 With the recent explosion of interest in large language models (LLMs), they often seem almost magical. But let’s demystify them. I wanted to step back and unpack the fundamentals — breaking down how LLMs are built, trained, and fine-tuned to become the AI systems we interact with today. This two-part deep dive is something I’ve been meaning […]

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]]> Deep Dive into WebSockets and Their Role in Client-Server Communication https://towardsdatascience.com/deep-dive-into-websockets-and-their-role-in-client-server-communication-aac387e10cb6/ Mon, 03 Feb 2025 11:02:00 +0000 https://towardsdatascience.com/deep-dive-into-websockets-and-their-role-in-client-server-communication-aac387e10cb6/ How WebSockets work, its tradeoffs, and how to design a real time messaging app

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]]> Why Variable Scoping Can Make or Break Your Data Science Workflow https://towardsdatascience.com/why-variable-scoping-can-make-or-break-your-data-science-workflow-5b449291ac73/ Mon, 06 Jan 2025 13:02:38 +0000 https://towardsdatascience.com/why-variable-scoping-can-make-or-break-your-data-science-workflow-5b449291ac73/ Let's kick off 2025 by writing some clean code together

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]]> Deep Dive into Multithreading, Multiprocessing, and Asyncio https://towardsdatascience.com/deep-dive-into-multithreading-multiprocessing-and-asyncio-94fdbe0c91f0/ Sat, 28 Dec 2024 16:02:10 +0000 https://towardsdatascience.com/deep-dive-into-multithreading-multiprocessing-and-asyncio-94fdbe0c91f0/ How to choose the right concurrency model

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