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Latest articles on Development, AI, Kubernetes, and Backend Technologies.

Q-Learning and CartPole: Your First Reinforcement Learning Agent

Q-Learning and CartPole: Your First Reinforcement Learning Agent If you’ve dipped your toes into reinforcement learning, chances are you’ve encountered Q-Learning — a classic, foundational algorithm that’s simple to understand yet powerful enough to teach you how AI agents can learn from rewards. In this post, you’ll learn: What Q-Learning is and how it works Why it’s great for beginners How to apply it to a real environment: CartPole from OpenAI Gym A complete, working Python example Let’s get started! ...

July 11, 2025 · 4 min · 781 words · Roy

What Is Kubernetes? The Beginner’s Guide to Container Orchestration

What Is Kubernetes? The Beginner’s Guide to Container Orchestration If you’re new to the world of cloud-native applications, containers, and DevOps, chances are you’ve come across the term Kubernetes (often abbreviated as K8s). But what exactly is Kubernetes, and why does everyone seem to be talking about it? In this post, you’ll learn: Why Kubernetes is necessary in a modern DevOps pipeline What problems Kubernetes solves The key features of Kubernetes How it works behind the scenes Real-world examples and use cases Let’s dive in. ...

July 11, 2025 · 4 min · 769 words · Roy

Mastering CartPole with DQN: Deep Reinforcement Learning for Beginners

Mastering CartPole with DQN: Deep Reinforcement Learning for Beginners If you’ve played with reinforcement learning (RL) before, you’ve probably seen the classic CartPole balancing problem. And if you’ve tried solving it with traditional Q-learning, you might have run into some limitations. That’s where DQN — Deep Q-Network — comes in. In this guide, we’ll explain what DQN is, why it was a breakthrough in RL, and how to implement it step-by-step to solve the CartPole-v1 environment using OpenAI Gym and PyTorch. Whether you’re new to RL or ready to level up from Q-tables, this tutorial is for you. ...

July 10, 2025 · 5 min · 949 words · Roy

Reinforcement Learning for Beginners: Build Your First AI Agent with OpenAI Gym

Reinforcement Learning for Beginners: Build Your First AI Agent with OpenAI Gym Reinforcement Learning (RL) might sound like an advanced topic reserved for researchers and PhDs — but the truth is, you can start today, even as a beginner. This guide will walk you through RL in the simplest terms, using the powerful and easy-to-use OpenAI Gym framework. With just a bit of Python knowledge, you’ll build your first AI agent that interacts with an environment, makes decisions, and learns from rewards — just like a human learning to ride a bike. ...

July 9, 2025 · 4 min · 835 words · Roy

LangGraph: Build Multi-Turn AI Workflows with Graph Logic

LangGraph: Build Multi-Turn AI Workflows with Graph Logic As AI agents become more complex and conversational, traditional linear workflows just don’t cut it anymore. Enter LangGraph — a powerful new framework that lets developers define graph-based, stateful AI workflows that support branching, looping, and conditional logic. Built on top of LangChain, LangGraph brings structure, clarity, and flexibility to how you build AI-powered applications. Table of Contents 1. What is LangGraph? LangGraph is an open-source framework created by the LangChain team. While LangChain focuses on chaining components in a sequence (like “A → B → C”), LangGraph lets you build agent systems as graphs where each node is a function or task, and edges define how data flows between them — even conditionally. ...

July 8, 2025 · 4 min · 749 words · Roy

China Launches Humanoid Robot Soccer League: Where AI Meets the Field

China Launches Humanoid Robot Soccer League: Where AI Meets the Field In a bold move blending entertainment and engineering, China has kicked off its first humanoid robot soccer league, showcasing what happens when AI-controlled machines hit the field. The matches are chaotic, clumsy, and oddly captivating — and they reveal the growing potential of robotics in real-world environments. Table of Contents 1. The Players: AI-Powered Humanoid Robots The league features humanoid robots developed by Booster Robotics, a Chinese AI and robotics firm. These machines are fully AI-controlled, navigating the game autonomously — and their skills roughly match that of 5- to 6-year-old children. ...

July 5, 2025 · 3 min · 506 words · Roy

Longhorn Tutorial: Kubernetes Storage Made Simple (Install & Monitor Guide)

Longhorn Tutorial: Kubernetes Storage Made Simple (Install & Monitor Guide) In this guide, we’ll explore Longhorn, a lightweight, reliable, and open-source distributed block storage system for Kubernetes. You’ll learn what Longhorn is, how it works, how to install it using Helm, and how to monitor it with Grafana and Prometheus. Table of Contents 1. What is Longhorn? Longhorn turns the local disks of your Kubernetes cluster nodes into persistent volumes — making stateful apps like databases possible in Kubernetes. ...

July 4, 2025 · 3 min · 448 words · Roy

Understanding MoE (Mixture of Experts): Scalable Deep Learning Models

Understanding MoE (Mixture of Experts): Scalable Deep Learning Models In recent years, model scaling has become a major driver in the evolution of deep learning performance. However, increasing model size comes with computational and memory costs. Mixture of Experts (MoE) provides a solution to this: enabling massive models with efficient inference by activating only a small subset of parameters per input. Table of Contents 1. What is Mixture of Experts? MoE is a neural network architecture that consists of: ...

July 4, 2025 · 4 min · 680 words · Roy

Monte Carlo Prediction: Reinforcement Learning with Python (MCP Tutorial)

Monte Carlo Prediction: Reinforcement Learning with Python (MCP Tutorial) In this tutorial, we’ll explore Monte Carlo Prediction (MCP) — a fundamental method in Reinforcement Learning used to estimate the value of states using experience. We’ll apply MCP to the Blackjack-v1 environment from the gymnasium library and walk through the core logic with clear Python code. Table of Contents 1. What is Monte Carlo Prediction? Monte Carlo Prediction estimates the value of a state as the average return (total reward) received after visiting that state across multiple episodes. ...

July 3, 2025 · 3 min · 542 words · Roy

EDA Tutorial: Analyzing ZIM Stock Data from Yahoo Finance

EDA Tutorial: Analyzing ZIM Stock Data from Yahoo Finance In this tutorial, we’ll perform exploratory data analysis (EDA) using real-time stock data from Yahoo Finance. Our target is ZIM Integrated Shipping Services Ltd. (Ticker: ZIM). We’ll use the Python yfinance package to pull data directly, making the process repeatable and easy to update. Table of Contents 1. Install yfinance First, install the yfinance package if you haven’t already: 1 pip install yfinance 2. Load ZIM Stock Data from Yahoo Finance 1 2 3 4 5 6 7 import yfinance as yf import pandas as pd # Download last 2 years of ZIM stock data df = yf.download("ZIM", start="2023-01-01", end="2025-01-01") df = df.reset_index() df.head() ✅ Sample Columns: Date Open High Low Close Adj Close Volume 3. Basic Info and Cleaning 1 2 3 df.info() df.describe() df.isnull().sum() Make sure the Date column is in datetime format (usually it is by default from yfinance): ...

July 2, 2025 · 2 min · 395 words · Roy