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Why I Chose AWS Lambda to Power My App’s Cloud Logic

2025-06-27T09:40:37+00:00

For this article, I will demonstrate how I used AWS Lambda as an all-around backend system for a mock-up mobile application I developed for my Design subject in school. The mobile application is an IoT application that integrates communication between a mobile device and a handheld barcode scanner using a Bluetooth module. It also includes security functions, such as code decryption and user statuses. For the dependencies, I used flutter_blue, get, and http. The list below indicates the use cases of AWS Lambda for my mobile application. I hope, by the end of this article, you will know how to [...]

Why I Chose AWS Lambda to Power My App’s Cloud Logic2025-06-27T09:40:37+00:00

What is Area Under the ROC Curve (AUC) in Machine Learning?

2025-07-01T02:38:28+00:00

Area Under the ROC Curve (AUC) Cheat Sheet AUC, short for Area Under the Curve of the Receiver Operating Characteristic (ROC), is a metric that evaluates how well a model can differentiate between different classes. A performance metric primarily used for binary classification models. Ranges from 0 to 1: 1: Perfect model. 0.5: Model performs no better than random guessing. 0: Model inversely ranks positives and negatives. Accurate Outcomes True Positive (TP): The model predicted 1, which matches the actual result. True Negative (TN): The model predicted 0, and the real outcome was also 0. Misclassified Outcomes False Positive (FP): [...]

What is Area Under the ROC Curve (AUC) in Machine Learning?2025-07-01T02:38:28+00:00

What is BiLingual Evaluation Understudy (BLEU) Score for Machine Translation?

2025-06-25T01:15:03+00:00

BiLingual Evaluation Understudy (BLEU) Score Cheat Sheet BLEU (BiLingual Evaluation Understudy) is a corpus-level metric designed to automatically evaluate the quality of machine-generated text, most commonly in machine translation (MT). It compares n-gram overlap between the machine’s output and one or more human reference translations. Introduced by Papineni et al. (2002), BLEU became the first automated metric to correlate highly with human judgments in large-scale MT evaluations. It remains a widely used baseline for evaluating machine-generated text. Common Use Cases The BLEU score is widely used in natural language processing tasks that require comparing machine-generated text to human-written references. Its primary [...]

What is BiLingual Evaluation Understudy (BLEU) Score for Machine Translation?2025-06-25T01:15:03+00:00

What is RLHF – Reinforcement Learning from Human Feedback?

2025-06-24T05:52:27+00:00

What is Reinforcement Learning from Human Feedback (RLHF)? A technique to improve AI models using human feedback to guide learning. Builds on reinforcement learning, where AI learns by trial and error to achieve goals. Uses human opinions to determine good or bad outputs, enhancing traditional reward systems. How RLHF Works Data Collection: AI generates multiple outputs (e.g., answers or text snippets). Humans provide feedback by ranking or comparing outputs (e.g., which is better or more helpful). Supervised Fine-Tuning: Model is trained with human feedback to produce preferred outputs. Establishes a baseline for good responses. Building a Reward Model: Creates a [...]

What is RLHF – Reinforcement Learning from Human Feedback?2025-06-24T05:52:27+00:00

Renovate Your Second Home: Terminal with Amazon Q

2025-06-14T12:01:09+00:00

For many developers, the terminal is not just a tool to make you look cool but it is a sanctuary. It deserves the title "A Developer's Second Home." Here, we build what we want, everything flows freely, and productivity reigns. However, comfort doesn't mean we can't tinker and upgrade it. In this blog, we'll explore how Amazon Q can renovate our sanctuary to make life easier. We need to improve our terminal experience from simple scripting with vim or nano to navigating directories and configuring systems. Your Terminal, Reimagined: The AI Renovation Has Begun The command-line interface (CLI) has been a [...]

Renovate Your Second Home: Terminal with Amazon Q2025-06-14T12:01:09+00:00

Cloud-9.9: Using Amazon CloudFront for Your Site in Amazon EC2

2025-06-12T10:54:23+00:00

Hey, this is Step 9 of our 9-step website portfolio building with AWS! Got lost? Click here to go to the main article, and here for the eighth step! In this final step of the series, we’ll guide you through integrating Amazon CloudFront, a global Content Delivery Network (CDN), with your WordPress website hosted on Amazon EC2. Amazon CloudFront will help accelerate content delivery, reduce latency, and enhance the overall performance and security of your site, making it even more robust. Let’s dive in!   What Is a Content Delivery Network (CDN) and Why Is It Important? A Content Delivery [...]

Cloud-9.9: Using Amazon CloudFront for Your Site in Amazon EC22025-06-12T10:54:23+00:00

Amazon Bedrock Token Management: Strategies for Smarter AI Usage

2025-06-03T18:11:17+00:00

Did you know? Big tech companies, fast-growing startups, and even solo developers are already using Amazon Bedrock to power their AI apps, from chatbots to content generators. But there's one secret they all share to keep things cost-efficient and fast: Smart token management. Whether building an AI-powered app or experimenting with GenAI for the first time, understanding how tokens work is the key to saving money and boosting performance in Amazon Bedrock. Let's break it all down easily. There is no deep tech talk, just real tips that work. What Are Tokens in Amazon Bedrock? Tokens are the units of [...]

Amazon Bedrock Token Management: Strategies for Smarter AI Usage2025-06-03T18:11:17+00:00

Cloud-9.8: Setting Up Web Caching Using Amazon ElastiCache for Your Amazon EC2-Hosted WordPress Website

2025-06-12T08:50:02+00:00

Hey, this is Step 8 of our 9-step website portfolio building with AWS! Got lost? Click here to go to the main article, and here for the seventh step! WordPress has proven itself as a powerful Content Management System (CMS) tool. However, as traffic increases, its performance can be compromised and slow down, especially when running on a single Amazon EC2 instance. In this article, I'll show you how to use Amazon ElastiCache to enable web caching and improve your website's performance. This step applies not just to those who are creating their website portfolio but to anyone who runs [...]

Cloud-9.8: Setting Up Web Caching Using Amazon ElastiCache for Your Amazon EC2-Hosted WordPress Website2025-06-12T08:50:02+00:00

Cloud-9.7: Your Guide to WordPress Plugins and Templates

2025-06-12T08:42:13+00:00

Hey, this is Step 7 of our 9-step website portfolio building with AWS! Got lost? Click here to go to the main article, and here for the sixth step! WordPress is a robust Content Management System (CMS) that anyone, regardless of technical skill, can simply use. Plugins and themes are two of this CMS tool's features; with a few clicks and tweaks, anyone may create their own website. These features enable you to manage and configure your website without having to write any code from scratch. In this article, we'll go over the capabilities of these two features, how they [...]

Cloud-9.7: Your Guide to WordPress Plugins and Templates2025-06-12T08:42:13+00:00

Build an AI Opponent for Discord Activities – Intro

2025-05-26T06:50:08+00:00

Have you ever wondered how NPCs and bots in games make decisions? How do they seem to "think" or play strategically—even when there's no human behind the scenes? In this blog series, we’ll take a deep dive into creating your own AI-powered opponent for a turn-based board game—specifically designed to run inside Discord Activities. Our goal is to create an opponent for turn-based board games that makes strategic decisions, learns from its experiences, and offers a compelling challenge for players on Discord. In this blog series, we'll learn how to: Design an AI opponent tailored for turn-based games Integrate your [...]

Build an AI Opponent for Discord Activities – Intro2025-05-26T06:50:08+00:00

AWS, Azure, and GCP Certifications are consistently among the top-paying IT certifications in the world, considering that most companies have now shifted to the cloud. Upskill and earn over $150,000 per year with an AWS, Azure, or GCP certification!

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