Mehdi Fekih
Articles By This Author
Obsidian et ontologies pour des workflows LLM efficaces
Comment utiliser Obsidian comme base de connaissances structurée et des ontologies pour améliorer la récupération, le prompting et la cohérence des grands modèles de langage — outils, templates et exemples opérationnels. Obsidian peut dépasser le rôle de simple carnet : bien structuré, il devient le noyau d’un workflow RAG fiable. Ce guide présente, de façon […]
Tarification à l’usage et économie des tokens IA, vers un nouveau paradigme pour l’intelligence artificielle API
Comment la facturation par token redéfinit l’accès, le coût et la stratégie des API d’intelligence artificielle L’intelligence artificielle bascule vers un nouveau modèle économique : l’API à la demande, tarifiée au token. Que l’on choisisse OpenAI, Anthropic, Google, Mistral ou l’on expérimente des plateformes d’agrégation comme OpenRouter, la tarification au token applique au monde de l’IA […]
Awesome Public Datasets: A Treasure Map for Data-Driven Projects
A guide to Awesome Public Datasets, a curated GitHub repository that helps developers, researchers, students, and analysts discover high-quality public datasets across dozens of domains.
Bitcoin and “Cyclicality”: Reassuring Myth or Serious Analysis?
For several years, much of the discussion around Bitcoin has rested on one central idea: cyclicality.Halvings, four-year cycles, an “inevitable” bull run, and an equally expected bear market. The narrative is well-oiled, almost comforting. But one question deserves to be asked plainly:Can we really call it serious analysis when we are waiting for a phenomenon […]
Configuring Amazon S3 Access Keys Securely for UpdraftPlus (WordPress)
Using Amazon Web Services S3 as remote storage for UpdraftPlus is a common and reliable approach for backing up a WordPress site.However, many users are confused when AWS warns against long-term access keys and suggests alternative authentication methods. This article explains the correct and secure way to configure S3 access for UpdraftPlus, why AWS shows […]
Aliexpress : The Bundle Deal Problem
Tired of AliExpress forcing you into “Bundle Deals” when you just want to buy a single item? This free userscript intercepts those sneaky links and redirects you straight to the actual product page. The Bundle Deal Problem AliExpress has been increasingly pushing shoppers toward “Bundle Deals” — grouped offers that look attractive but prevent you […]
Artificial Intelligence and the Personal Computer: A Valid Comparison, but an Incomplete One
As artificial intelligence (AI) systems rapidly improve and spread across industries, a common argument emerges: the AI shift is comparable to the rise of the personal computer (PC) in the 1980s and 1990s. According to this view, AI represents another technological wave—initially disruptive, eventually normalized—requiring adaptation rather than concern. While this comparison is not without […]
SIPO and PISO shift registers with Arduino and ESP (ESP8266 / ESP32)
When working with Arduino, ESP8266 or ESP32, you quickly hit a simple limit: not enough GPIO pins.Instead of stacking boards or using complex expanders, there is a very clean and proven solution: shift registers. The two main types are: Why use shift registers? With only 3 pins, you can manage 8, 16, 32+ inputs or […]
