Gustavo Santos, Author at Towards Data Science https://towardsdatascience.com Publish AI, ML & data-science insights to a global community of data professionals. Wed, 19 Nov 2025 14:00:00 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.3 https://towardsdatascience.com/wp-content/uploads/2025/02/cropped-Favicon-32x32.png Gustavo Santos, Author at Towards Data Science https://towardsdatascience.com 32 32 PyTorch Tutorial for Beginners: Build a Multiple Regression Model from Scratch https://towardsdatascience.com/pytorch-tutorial-for-beginners-build-a-multiple-regression-model-from-scratch/ Wed, 19 Nov 2025 14:00:00 +0000 https://towardsdatascience.com/?p=607678 Hands-on PyTorch: Building a 3-layer neural network for multiple regression

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]]> Smarter Model Tuning: An AI Agent with LangGraph + Streamlit That Boosts ML Performance https://towardsdatascience.com/smarter-model-tuning-an-ai-agent-with-langgraph-streamlit-that-boosts-ml-performance/ Wed, 20 Aug 2025 19:28:38 +0000 https://towardsdatascience.com/?p=606906 Automating model tuning in Python with Gemini, LangGraph, and Streamlit for regression and classification improvements

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]]> LangGraph + SciPy: Building an AI That Reads Documentation and Makes Decisions https://towardsdatascience.com/langgraph-scipy-building-an-ai-that-reads-documentation-and-makes-decisions/ Mon, 11 Aug 2025 17:53:44 +0000 https://towardsdatascience.com/?p=606828 Stop guessing your statistical test. Let this AI do it for you.

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]]> Agentic AI 103: Building Multi-Agent Teams https://towardsdatascience.com/agentic-ai-103-building-multi-agent-teams/ Thu, 12 Jun 2025 19:34:10 +0000 https://towardsdatascience.com/?p=606284 Build multi-agent teams that can automate tasks and enhance productivity.

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]]> Agentic AI 102: Guardrails and Agent Evaluation https://towardsdatascience.com/agentic-ai-102-guardrails-and-agent-evaluation/ Fri, 16 May 2025 19:09:26 +0000 https://towardsdatascience.com/?p=606037 An introduction to tools that make your model safer and more predictable and performant.

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]]> Generating Data Dictionary for Excel Files Using OpenPyxl and AI Agents https://towardsdatascience.com/generating-data-dictionary-for-excel-files-using-openpyxl-and-ai-agents/ Thu, 08 May 2025 05:16:40 +0000 https://towardsdatascience.com/?p=605948 Automate Excel Documentation with AI: Leveraging OpenPyxl and Generative AI to create data dictionaries. Learn how to harness AI agents to add column descriptions and metadata to your Excel files, boosting transparency and collaboration.

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]]> Agentic AI 101: Starting Your Journey Building AI Agents https://towardsdatascience.com/agentic-ai-101-starting-your-journey-building-ai-agents/ Fri, 02 May 2025 05:13:57 +0000 https://towardsdatascience.com/?p=605877 Learn the fundamentals of how to create AI Agents.

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]]> Creating an AI Agent to Write Blog Posts with CrewAI https://towardsdatascience.com/creating-an-ai-agent-to-write-blog-posts-with-crewai/ Fri, 04 Apr 2025 18:11:49 +0000 https://towardsdatascience.com/?p=605422 How to assemble a crew of AI agents with CrewAI and Python

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]]> LLM + RAG: Creating an AI-Powered File Reader Assistant https://towardsdatascience.com/llm-rag-creating-an-ai-powered-file-reader-assistant/ Mon, 03 Mar 2025 21:02:28 +0000 https://towardsdatascience.com/?p=598621 How to create a chatbot to answer questions about file’s content

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]]> LightGBM: The Fastest Option of Gradient Boosting https://towardsdatascience.com/lightgbm-the-fastest-option-of-gradient-boosting-1fb0c40948a3/ Sun, 12 Jan 2025 12:02:14 +0000 https://towardsdatascience.com/lightgbm-the-fastest-option-of-gradient-boosting-1fb0c40948a3/ Learn how to implement a fast and effective Gradient Boosting model using Python

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]]> How Bias and Variance Affect Your Model https://towardsdatascience.com/how-bias-and-variance-affect-your-model-a03b1c3dd6d1/ Tue, 24 Dec 2024 11:01:38 +0000 https://towardsdatascience.com/how-bias-and-variance-affect-your-model-a03b1c3dd6d1/ Learn the concepts and the practice. How a model behaves in each case.

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]]> Synthetic Control Sample for Before and After A/B Test https://towardsdatascience.com/synthetic-control-sample-for-before-and-after-a-b-test-683bac36ffc1/ Thu, 19 Dec 2024 19:32:30 +0000 https://towardsdatascience.com/synthetic-control-sample-for-before-and-after-a-b-test-683bac36ffc1/ Learn a simple way to use linear regression to create a synthetic control sample for your A/B test

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]]> Documenting Python Projects with MkDocs https://towardsdatascience.com/documenting-python-projects-with-mkdocs-60e26b64380e/ Fri, 22 Nov 2024 18:58:11 +0000 https://towardsdatascience.com/documenting-python-projects-with-mkdocs-60e26b64380e/ Use Markdown to quickly create a beautiful documentation page for your projects

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]]> How I Created a Data Science Project Following CRISP-DM Lifecycle https://towardsdatascience.com/how-i-created-a-data-science-project-following-a-crisp-dm-lifecycle-8c0f5f89bba1/ Wed, 13 Nov 2024 16:02:02 +0000 https://towardsdatascience.com/how-i-created-a-data-science-project-following-a-crisp-dm-lifecycle-8c0f5f89bba1/ An end-to-end project using the CRISP-DM framework

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]]> Make Your Way from Pandas to PySpark https://towardsdatascience.com/make-your-way-from-pandas-to-pyspark-c50d5928f6c3/ Thu, 26 Sep 2024 03:31:51 +0000 https://towardsdatascience.com/make-your-way-from-pandas-to-pyspark-c50d5928f6c3/ Learn a few basic commands to start transitioning from Pandas to PySpark

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]]> A Closer Look at Scipy’s Stats Module – Part 2 https://towardsdatascience.com/a-closer-look-at-scipys-stats-module-part-2-203d27a71fa3/ Thu, 19 Sep 2024 05:53:24 +0000 https://towardsdatascience.com/a-closer-look-at-scipys-stats-module-part-2-203d27a71fa3/ Let's learn the main methods from scipy.stats module in Python.

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]]> A Closer Look at Scipy’s Stats module – Part 1 https://towardsdatascience.com/a-closer-look-at-scipys-stats-module-part-1-5071858f32c1/ Thu, 19 Sep 2024 05:50:10 +0000 https://towardsdatascience.com/a-closer-look-at-scipys-stats-module-part-1-5071858f32c1/ Let's learn the main methods from scipy.stats module in Python.

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]]> Creating Project Environments in Python with VSCode https://towardsdatascience.com/creating-project-environments-in-python-with-vscode-b95b530cd627/ Fri, 13 Sep 2024 00:45:16 +0000 https://towardsdatascience.com/creating-project-environments-in-python-with-vscode-b95b530cd627/ Learn how to manage different environments for your Python projects

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]]> Using Decision Trees for Exploratory Data Analysis https://towardsdatascience.com/using-decision-trees-for-exploratory-data-analysis-1d03558930d3/ Thu, 20 Jun 2024 07:23:46 +0000 https://towardsdatascience.com/using-decision-trees-for-exploratory-data-analysis-1d03558930d3/ Add decision trees to your EDA and get great insights from the start

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]]> My Easy Guide to Pre vs. Post Treatment Tests https://towardsdatascience.com/my-easy-guide-to-pre-vs-post-treatment-tests-0206f56f83a4/ Thu, 13 Jun 2024 03:53:59 +0000 https://towardsdatascience.com/my-easy-guide-to-pre-vs-post-treatment-tests-0206f56f83a4/ A quick introduction to Before and After Tests with code.

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