{"@attributes":{"version":"2.0"},"channel":{"title":"Machine-Learning on Oriol Al\u00e0s Cerc\u00f3s","link":"https:\/\/oriolac.github.io\/tags\/machine-learning\/","description":"Recent content in Machine-Learning on Oriol Al\u00e0s Cerc\u00f3s","generator":"Hugo -- 0.150.0","language":"en-us","copyright":"Oriol Al\u00e0s Cerc\u00f3s","lastBuildDate":"Fri, 20 Mar 2026 20:10:23 +0100","item":[{"title":"Loss functions and their final-layer activations","link":"https:\/\/oriolac.github.io\/posts\/20260410-loss-functions-activations\/","pubDate":"Fri, 20 Mar 2026 20:10:23 +0100","guid":"https:\/\/oriolac.github.io\/posts\/20260410-loss-functions-activations\/","description":"<p>When making the first steps with deep learning, we grasp the idea of using a neural network to learn a function that\nmaps data to other data. We are often told that neural networks are a powerful tool in machine learning because of their\nnon-linearity and their ability to learn complex functions from data, which results in minizing some loss function. In\nthis post, we will explSore how the final-layer activations are dependent on the loss function of our problem.<\/p>"},{"title":"Introduction to ML & DL","link":"https:\/\/oriolac.github.io\/talks\/hackeps-ml-dl\/","pubDate":"Tue, 01 Nov 2022 00:00:00 +0000","guid":"https:\/\/oriolac.github.io\/talks\/hackeps-ml-dl\/","description":"<h2 id=\"overview\">Overview<\/h2>\n<p>Introductory workshop on Machine Learning and Deep Learning fundamentals designed for hackathon participants. The session covers core concepts, practical algorithms, and hands-on implementation using popular frameworks.<\/p>\n<h2 id=\"key-topics\">Key Topics<\/h2>\n<ul>\n<li>Supervised vs unsupervised learning<\/li>\n<li>Neural network fundamentals<\/li>\n<li>Common ML\/DL architectures<\/li>\n<li>Practical tools and frameworks (scikit-learn, PyTorch, TensorFlow)<\/li>\n<li>Tips for rapid prototyping in hackathons<\/li>\n<\/ul>\n<h2 id=\"event\">Event<\/h2>\n<p>HackEPS is the largest hackathon in Catalonia, organized by students at the University of Lleida, bringing together hundreds of participants to build innovative projects in 24 hours.<\/p>"}]}}