Heiko Hotz, Author at Towards Data Science https://towardsdatascience.com Publish AI, ML & data-science insights to a global community of data professionals. Mon, 14 Jul 2025 16:57:32 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.1 https://towardsdatascience.com/wp-content/uploads/2025/02/cropped-Favicon-32x32.png Heiko Hotz, Author at Towards Data Science https://towardsdatascience.com 32 32 Let AI Tune Your Voice Assistant https://towardsdatascience.com/let-ai-tune-your-voice-assistant/ Mon, 14 Jul 2025 16:57:11 +0000 https://towardsdatascience.com/?p=606566 A practical guide to automating prompt engineering for voice assistants

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]]> Google Gemini Is Entering the Advent of Code Challenge https://towardsdatascience.com/google-gemini-is-entering-the-advent-of-code-challenge-dfd88ffa12a6/ Mon, 02 Dec 2024 09:16:52 +0000 https://towardsdatascience.com/google-gemini-is-entering-the-advent-of-code-challenge-dfd88ffa12a6/ An open-source project to explore the capabilities and limitations of LLMs on coding challenges

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]]> Productionising GenAI Agents: Evaluating Tool Selection with Automated Testing https://towardsdatascience.com/productionising-genai-agents-evaluating-tool-selection-with-automated-testing-f668065e69bd/ Fri, 22 Nov 2024 18:56:10 +0000 https://towardsdatascience.com/productionising-genai-agents-evaluating-tool-selection-with-automated-testing-f668065e69bd/ How to create reliable and scalable GenAI Agents for real-world applications

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]]> Automated Prompt Engineering: The Definitive Hands-On Guide https://towardsdatascience.com/automated-prompt-engineering-the-definitive-hands-on-guide-1476c8cd3c50/ Wed, 04 Sep 2024 14:29:51 +0000 https://towardsdatascience.com/automated-prompt-engineering-the-definitive-hands-on-guide-1476c8cd3c50/ Learn how to automate prompt engineering and unlock significant performance improvements in your LLM workload

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]]> Multimodal citations with Google’s Vertex AI https://towardsdatascience.com/multimodal-citations-with-googles-vertex-ai-ebeea75f0d1d/ Mon, 29 Apr 2024 15:10:21 +0000 https://towardsdatascience.com/multimodal-citations-with-googles-vertex-ai-ebeea75f0d1d/ A novel approach to enhance the user experience with GenAI applications

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]]> Deploying LLMs locally with Apple’s MLX framework https://towardsdatascience.com/deploying-llms-locally-with-apples-mlx-framework-2b3862049a93/ Sat, 20 Jan 2024 17:54:04 +0000 https://towardsdatascience.com/deploying-llms-locally-with-apples-mlx-framework-2b3862049a93/ A technical deep dive into the new deep learning library MLX

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]]> Teaching AI to Play Board Games https://towardsdatascience.com/teaching-ai-to-play-board-games-77e5d1749dd9/ Tue, 12 Dec 2023 06:28:22 +0000 https://towardsdatascience.com/teaching-ai-to-play-board-games-77e5d1749dd9/ Using reinforcement learning from scratch to teach a computer to play Tic-Tac-Toe

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]]> RAG vs Finetuning – Which Is the Best Tool to Boost Your LLM Application? https://towardsdatascience.com/rag-vs-finetuning-which-is-the-best-tool-to-boost-your-llm-application-94654b1eaba7/ Thu, 24 Aug 2023 20:17:34 +0000 https://towardsdatascience.com/rag-vs-finetuning-which-is-the-best-tool-to-boost-your-llm-application-94654b1eaba7/ The definitive guide for choosing the right method for your use case

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]]> The Urgent Need for Responsible Use of Generative AI https://towardsdatascience.com/the-urgent-need-for-responsible-use-of-generative-ai-d3134605267f/ Mon, 07 Aug 2023 15:43:09 +0000 https://towardsdatascience.com/the-urgent-need-for-responsible-use-of-generative-ai-d3134605267f/ Why scale, personalisation, unclear provenance, and diffusion of AI-generated content require us to act now

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]]> The Three Essential Methods to Evaluate a New Language Model https://towardsdatascience.com/the-three-essential-methods-to-evaluate-a-new-language-model-aa5c526bacfd/ Mon, 03 Jul 2023 14:17:58 +0000 https://towardsdatascience.com/the-three-essential-methods-to-evaluate-a-new-language-model-aa5c526bacfd/ What is this about? New LLMs are released every week, and if you’re like me, you might ask yourself: Does this one finally fit all the use cases I want to utilise an LLM for? In this tutorial, I will share the techniques that I use to evaluate new LLMs. I’ll introduce three techniques I […]

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]]> Build Your Own ChatGPT-Like App with Streamlit https://towardsdatascience.com/build-your-own-chatgpt-like-app-with-streamlit-20d940417389/ Mon, 03 Apr 2023 21:47:51 +0000 https://towardsdatascience.com/build-your-own-chatgpt-like-app-with-streamlit-20d940417389/ Leverage OpenAI's APIs to bypass the official ChatGPT app

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]]> Create Your Own Large Language Model Playground in SageMaker Studio https://towardsdatascience.com/create-your-own-large-language-model-playground-in-sagemaker-studio-1be5846c5089/ Mon, 20 Mar 2023 15:25:31 +0000 https://towardsdatascience.com/create-your-own-large-language-model-playground-in-sagemaker-studio-1be5846c5089/ Now you can deploy LLMs and experiment with them all in one place

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]]> Create Your Own Stable Diffusion UI on AWS in Minutes https://towardsdatascience.com/create-your-own-stable-diffusion-ui-on-aws-in-minutes-35480dfcde6a/ Tue, 03 Jan 2023 16:49:12 +0000 https://towardsdatascience.com/create-your-own-stable-diffusion-ui-on-aws-in-minutes-35480dfcde6a/ Deploy a text-to-image web app with just one command

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]]> Unlock the Latest Transformer Models with Amazon SageMaker https://towardsdatascience.com/unlock-the-latest-transformer-models-with-amazon-sagemaker-7fe65130d993/ Tue, 06 Dec 2022 10:25:06 +0000 https://towardsdatascience.com/unlock-the-latest-transformer-models-with-amazon-sagemaker-7fe65130d993/ What is this about? AWS Deep Learning Containers (DLCs) have become a popular choice for training and deploying Natural Language Processing (NLP) models on Amazon SageMaker (SM), thanks to their convenience and ease of use. However, sometimes the latest versions of the Transformers library are not available in the prebuilt DLCs. In this blog post, […]

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]]> I Used ChatGPT to Create an Entire AI Application on AWS https://towardsdatascience.com/i-used-chatgpt-to-create-an-entire-ai-application-on-aws-5b90e34c3d50/ Fri, 02 Dec 2022 13:18:59 +0000 https://towardsdatascience.com/i-used-chatgpt-to-create-an-entire-ai-application-on-aws-5b90e34c3d50/ This new language model could be the pair programmer of your choice going forward

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]]> DeepSpeed Deep Dive – Model Implementations for Inference (MII) https://towardsdatascience.com/deepspeed-deep-dive-model-implementations-for-inference-mii-b02aa5d5e7f7/ Thu, 17 Nov 2022 10:10:16 +0000 https://towardsdatascience.com/deepspeed-deep-dive-model-implementations-for-inference-mii-b02aa5d5e7f7/ A closer look at the latest open-source library from DeepSpeed

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]]> Developing a Strategy Bot for an NGO with GPT-3 https://towardsdatascience.com/developing-a-strategy-bot-for-an-ngo-39cddf912eba/ Thu, 10 Nov 2022 14:06:28 +0000 https://towardsdatascience.com/developing-a-strategy-bot-for-an-ngo-39cddf912eba/ What is this about? When OpenAI released GPT-3 in 2020, the Natural Language Processing (NLP) community went wild (similar to hype created in the past few months by text-to-image models like DALL-E 2 and Stable Diffusion). Within weeks people realised and harvested the potential to create amazing demos and applications with GPT-3, with astonishing results. […]

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]]> Let’s BLOOM with BigScience’s New AI Model https://towardsdatascience.com/lets-bloom-with-bigscience-s-new-ai-model-803b1a0d677/ Tue, 16 Aug 2022 17:48:34 +0000 https://towardsdatascience.com/lets-bloom-with-bigscience-s-new-ai-model-803b1a0d677/ Deploy large language models with bnb-Int8 for Hugging Face

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]]> Transformers for Tabular Data https://towardsdatascience.com/transformers-for-tabular-data-b3e196fab6f4/ Tue, 02 Aug 2022 19:13:28 +0000 https://towardsdatascience.com/transformers-for-tabular-data-b3e196fab6f4/ How to use SageMaker's built-in algorithm TabTransformer with your own data

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]]> How to Use GPT-J for (Almost) Any NLP Task https://towardsdatascience.com/how-to-use-gpt-j-for-almost-any-nlp-task-cb3ca8ff5826/ Fri, 06 May 2022 06:14:51 +0000 https://towardsdatascience.com/how-to-use-gpt-j-for-almost-any-nlp-task-cb3ca8ff5826/ Prompt engineering and how it can be used with text generation models

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