Sarah Schürch, 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 19:19:04 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.1 https://towardsdatascience.com/wp-content/uploads/2025/02/cropped-Favicon-32x32.png Sarah Schürch, Author at Towards Data Science https://towardsdatascience.com 32 32 Simple Guide to Multi-Armed Bandits: A Key Concept Before Reinforcement Learning https://towardsdatascience.com/simple-guide-to-multi-armed-bandits-a-key-concept-before-reinforcement-learning/ Mon, 14 Jul 2025 19:18:37 +0000 https://towardsdatascience.com/?p=606572 How AI learns to make better decisions and why you should care about exploration vs. exploitation

The post Simple Guide to Multi-Armed Bandits: A Key Concept Before Reinforcement Learning appeared first on Towards Data Science.

]]> Reinforcement Learning Made Simple: Build a Q-Learning Agent in Python https://towardsdatascience.com/reinforcement-learning-made-simple-build-a-q-learning-agent-in-python/ Tue, 27 May 2025 19:01:28 +0000 https://towardsdatascience.com/?p=606114 Inspired by AlphaGo’s Move 37 — learn how agents explore, exploit, and win

The post Reinforcement Learning Made Simple: Build a Q-Learning Agent in Python appeared first on Towards Data Science.

]]> Beyond Glorified Curve Fitting: Exploring the Probabilistic Foundations of Machine Learning https://towardsdatascience.com/beyond-glorified-curve-fitting-exploring-the-probabilistic-foundations-of-machine-learning/ Thu, 01 May 2025 00:49:26 +0000 https://towardsdatascience.com/?p=605854 An introduction to probabilistic thinking — and why it’s the foundation for robust and explainable AI systems.

The post Beyond Glorified Curve Fitting: Exploring the Probabilistic Foundations of Machine Learning appeared first on Towards Data Science.

]]> Understanding the Tech Stack Behind Generative AI https://towardsdatascience.com/tech-stack-generative-ai/ Tue, 01 Apr 2025 00:35:03 +0000 https://towardsdatascience.com/?p=605364 From foundation models to vector databases and AI agents — what makes modern AI work

The post Understanding the Tech Stack Behind Generative AI appeared first on Towards Data Science.

]]> How to Make Your LLM More Accurate with RAG & Fine-Tuning https://towardsdatascience.com/how-to-make-your-llm-more-accurate-with-rag-fine-tuning/ Tue, 11 Mar 2025 18:05:00 +0000 https://towardsdatascience.com/?p=599477 And when to use which one

The post How to Make Your LLM More Accurate with RAG & Fine-Tuning appeared first on Towards Data Science.

]]> Deep Research by OpenAI: A Practical Test of AI-Powered Literature Review https://towardsdatascience.com/deep-research-by-openai-a-practical-test-of-ai-powered-literature-review/ Tue, 04 Mar 2025 20:06:21 +0000 https://towardsdatascience.com/?p=598693 How Deep Research handled a state-of-the-art review and possible challenges for research

The post Deep Research by OpenAI: A Practical Test of AI-Powered Literature Review appeared first on Towards Data Science.

]]> Why Data Scientists Should Care about Containers — and Stand Out with This Knowledge https://towardsdatascience.com/why-data-scientists-should-care-about-containers-and-stand-out-with-this-knowledge/ Thu, 20 Feb 2025 04:51:55 +0000 https://towardsdatascience.com/?p=598159 “I train models, analyze data and create dashboards — why should I care about containers?” Many people who are new to the world of data science ask themselves this question. But imagine you have trained a model that runs perfectly on your laptop. However, error messages keep popping up in the cloud when others access […]

The post Why Data Scientists Should Care about Containers — and Stand Out with This Knowledge appeared first on Towards Data Science.

]]> Virtualization & Containers for Data Science Newbies https://towardsdatascience.com/virtualization-containers-for-data-science-newbies/ Wed, 12 Feb 2025 01:04:25 +0000 https://towardsdatascience.com/?p=597744 Virtualization makes it possible to run multiple virtual machines (VMs) on a single piece of physical hardware. These VMs behave like independent computers, but share the same physical computing power. A computer within a computer, so to speak. Many cloud services rely on virtualization. But other technologies, such as containerization and serverless computing, have become […]

The post Virtualization & Containers for Data Science Newbies appeared first on Towards Data Science.

]]> The Concepts Data Professionals Should Know in 2025: Part 2 https://towardsdatascience.com/the-concepts-data-professionals-should-know-in-2025-part-2-c0e308946463/ Mon, 20 Jan 2025 11:02:02 +0000 https://towardsdatascience.com/the-concepts-data-professionals-should-know-in-2025-part-2-c0e308946463/ From AI Agent to Human-In-The-Loop - Master 12 critical data concepts and turn them into simple projects to stay ahead in IT.

The post The Concepts Data Professionals Should Know in 2025: Part 2 appeared first on Towards Data Science.

]]> The Concepts Data Professionals Should Know in 2025: Part 1 https://towardsdatascience.com/the-concepts-data-professionals-should-know-in-2025-part-1-47e7e797801d/ Sun, 19 Jan 2025 19:02:04 +0000 https://towardsdatascience.com/the-concepts-data-professionals-should-know-in-2025-part-1-47e7e797801d/ From Data Lakehouses to Event-Driven Architecture - Master 12 data concepts and turn them into simple projects to stay ahead in IT.

The post The Concepts Data Professionals Should Know in 2025: Part 1 appeared first on Towards Data Science.

]]> What is MicroPython? Do I Need to Know it as a Data Scientist? https://towardsdatascience.com/what-is-micropython-do-i-need-to-know-it-as-a-data-scientist-5b4567a21b99/ Sun, 12 Jan 2025 16:32:01 +0000 https://towardsdatascience.com/what-is-micropython-do-i-need-to-know-it-as-a-data-scientist-5b4567a21b99/ In this year's edition of the Stack Overflow survey, MicroPython is with 1.6% in the Most Popular Technologies - but why?

The post What is MicroPython? Do I Need to Know it as a Data Scientist? appeared first on Towards Data Science.

]]> 5 Simple Projects to Start Today: A Learning Roadmap for Data Engineering https://towardsdatascience.com/5-simple-projects-to-start-today-a-learning-roadmap-for-data-engineering-940ecbad6b5f/ Thu, 02 Jan 2025 11:31:37 +0000 https://towardsdatascience.com/5-simple-projects-to-start-today-a-learning-roadmap-for-data-engineering-940ecbad6b5f/ Start with 5 practical projects to lay the foundation for your data engineering roadmap.

The post 5 Simple Projects to Start Today: A Learning Roadmap for Data Engineering appeared first on Towards Data Science.

]]> Master Bots Before Starting with AI Agents: Simple Steps to Create a Mastodon Bot with Python https://towardsdatascience.com/master-bots-before-starting-with-ai-agents-simple-steps-to-create-a-mastodon-bot-with-python-cce4f9ed24ee/ Fri, 27 Dec 2024 14:01:48 +0000 https://towardsdatascience.com/master-bots-before-starting-with-ai-agents-simple-steps-to-create-a-mastodon-bot-with-python-cce4f9ed24ee/ I recently published a post on Mastodon that was shared by six other accounts within two minutes. Curious, I visited the profiles and...

The post Master Bots Before Starting with AI Agents: Simple Steps to Create a Mastodon Bot with Python appeared first on Towards Data Science.

]]> The Essential Guide to R and Python Libraries for Data Visualization https://towardsdatascience.com/the-essential-guide-to-r-and-python-libraries-for-data-visualization-33be8511c976/ Mon, 16 Dec 2024 21:40:28 +0000 https://towardsdatascience.com/the-essential-guide-to-r-and-python-libraries-for-data-visualization-33be8511c976/ Let's dive into the most important libraries in R and Python to visualise data and create different charts, and what the pros and cons are

The post The Essential Guide to R and Python Libraries for Data Visualization appeared first on Towards Data Science.

]]> Who Does What in Data? A Practical Introduction to the Role of a Data Engineer & Data Scientist https://towardsdatascience.com/who-does-what-in-data-a-practical-introduction-to-the-role-of-a-data-engineer-data-scientist-894d06bf5da9/ Thu, 05 Dec 2024 20:08:16 +0000 https://towardsdatascience.com/who-does-what-in-data-a-practical-introduction-to-the-role-of-a-data-engineer-data-scientist-894d06bf5da9/ What does a data engineer do differently to a data scientist?

The post Who Does What in Data? A Practical Introduction to the Role of a Data Engineer & Data Scientist appeared first on Towards Data Science.

]]> A Beginner’s Journey into Key Mathematical Concepts: Applied Data Analysis Simplified https://towardsdatascience.com/a-beginners-journey-into-key-mathematical-concepts-applied-data-analysis-simplified-137af970ac56/ Tue, 26 Nov 2024 19:07:29 +0000 https://towardsdatascience.com/a-beginners-journey-into-key-mathematical-concepts-applied-data-analysis-simplified-137af970ac56/ Understanding key concepts such as Monte Carlo Methods, Bayes' Theorem or Gradient Descent can be overwhelming for beginners...

The post A Beginner’s Journey into Key Mathematical Concepts: Applied Data Analysis Simplified appeared first on Towards Data Science.

]]> Why ETL-Zero? Understanding the shift in Data Integration https://towardsdatascience.com/why-etl-zero-understanding-the-shift-in-data-integration-as-a-beginner-d0cefa244154/ Mon, 11 Nov 2024 16:22:13 +0000 https://towardsdatascience.com/why-etl-zero-understanding-the-shift-in-data-integration-as-a-beginner-d0cefa244154/ When I was preparing for the Salesforce Data Cloud certification, I came across the term Zero-ETL. The Data Cloud offers the possibility...

The post Why ETL-Zero? Understanding the shift in Data Integration appeared first on Towards Data Science.

]]> SQL and Data Modelling in Action: A Deep Dive into Data Lakehouses https://towardsdatascience.com/sql-and-data-modelling-in-action-a-deep-dive-into-data-lakehouses-fcbab9a4b9c2/ Mon, 21 Oct 2024 11:27:39 +0000 https://towardsdatascience.com/sql-and-data-modelling-in-action-a-deep-dive-into-data-lakehouses-fcbab9a4b9c2/ Lakehouses as a continuation of data warehouses and data lakes. What is this architecture about?

The post SQL and Data Modelling in Action: A Deep Dive into Data Lakehouses appeared first on Towards Data Science.

]]>