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Lois

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About Lois Angelo Dar Juan

Lois Angelo Dar Juan is a Cloud Engineer at Tutorials Dojo, a licensed Electronics Engineer (ECE), a 2x AWS Certified (CLF and SAA), and a 4x Claude Certified professional. With a strong engineering foundation and growing expertise in cloud computing and artificial intelligence, he applies technical knowledge, automation, and emerging technologies to solve real-world challenges. Passionate about continuous learning, he strives to bridge engineering and IT while contributing to the growth of the cloud, AI, and technology communities.

Microsoft Bot Framework

2025-08-02T08:32:09+00:00

Microsoft Bot Framework Cheat Sheet Powered by Azure AI Bot Service A comprehensive framework for building intelligent, enterprise-grade conversational AI experiences across multiple channels. Enables natural language understanding, multi-turn dialogues, and proactive messaging for a seamless conversational experience. Integrates natively with Azure AI services like Azure AI Language, Azure AI Speech, and Azure OpenAI for enhanced bot intelligence. Supports deployment across channels including Microsoft Teams, Web Chat, Facebook Messenger, Slack, and custom clients via Direct Line. Important Terminologies Bot A conversational application that interacts with users through text, cards, or speech to perform tasks or provide information.. Activity The basic [...]

Microsoft Bot Framework2025-08-02T08:32:09+00:00

Microsoft Security Copilot

2026-03-04T08:46:57+00:00

Microsoft Security Copilot Cheat Sheet An AI-powered cybersecurity assistant that helps security teams investigate, respond to threats, and manage risks more efficiently. Built on Microsoft’s security stack and large language models, it enhances analyst workflows with natural language understanding. Reduces time to resolution by summarizing incidents, generating KQL/PowerShell scripts, and providing guided response actions. Delivers real-time threat analysis and contextual insights via embedded Copilot experiences or standalone chat. Integrates with Defender XDR, Sentinel, Intune, Entra, Purview, Defender for Cloud, and third‑party plugins to provide unified analysis and response. Key Features Incident summarization & triage Automatically generates actionable summaries of alerts [...]

Microsoft Security Copilot2026-03-04T08:46:57+00:00

What is BERTScore – Bidirectional Encoder Representations from Transformers Score?

2025-07-03T06:03:55+00:00

BERTScore (Bidirectional Encoder Representations from Transformers Score) Cheat Sheet BERTScore is an effective evaluation metric that looks beyond surface-level word matching to assess the meaning behind the generated text. Instead of counting overlapping words like traditional metrics such as BLEU or ROUGE, BERTScore taps into the power of pre-trained transformer models (like BERT) to compare the semantic similarity between tokens in the generated output and a reference sentence. It does this by calculating the cosine similarity between their contextual embeddings. Initially proposed by Zhang et al. (2020), BERTScore has quickly become a popular choice in natural language processing tasks where [...]

What is BERTScore – Bidirectional Encoder Representations from Transformers Score?2025-07-03T06:03:55+00:00

Azure Pipelines

2026-02-19T12:23:33+00:00

Azure Pipelines Cheat Sheet A cloud-based platform for automating code build, test, and deployment workflows using CI/CD pipelines. Automates software delivery across development, test, and production environments. Works with multiple languages and platforms (e.g., .NET, Java, Node.js, Python). Integrates with GitHub, Azure Repos, Bitbucket, and other Git providers. Supports both YAML (as code) and visual designer for pipeline configuration. Azure Pipelines Key Features Cross-platform support Build and deploy applications on Windows, Linux, and macOS. Choose between Microsoft-hosted or self-hosted agents depending on your environment needs. Language-agnostic execution Supports a wide range of languages such as .NET, Java, Python, Node.js, and [...]

Azure Pipelines2026-02-19T12:23:33+00:00

Google Veo 3: The Latest Breakthrough in AI Video Generation

2025-06-26T08:35:57+00:00

Artificial intelligence has come a long way from its early days when it could only do simple tasks like solving math problems, playing basic games, or following step-by-step instructions from programmers. Back then, AI relied on fixed rules and couldn’t learn or improve on its own. As technology advanced, AI became more capable and useful. It learned to recognize voice commands, identify faces, suggest videos based on viewing habits, and learn patterns from data. These examples show how AI moved beyond strict programming and started making smart decisions on its own, thanks to machine learning and deep learning. Over time, [...]

Google Veo 3: The Latest Breakthrough in AI Video Generation2025-06-26T08:35:57+00:00

Azure AI Search

2025-05-23T09:00:58+00:00

Azure AI Search Cheat Sheet Formerly known as Azure Cognitive Search A scalable cloud search service that lets you embed advanced search capabilities into your apps. It supports full-text, vector, and hybrid search approaches, making it ideal for both classic and AI-enhanced use cases. Natively integrates with Azure OpenAI, Foundry Models, and Azure Machine Learning. Supports third-party and open-source LLM integrations. Key Features 1. Search Capabilities Full-Text Search: Utilizes inverted indexes for efficient keyword-based searches. Vector Search: Supports semantic search by matching vector representations of data. Hybrid Search: Combines full-text and vector search for enhanced relevance. Indexers: Automate data ingestion [...]

Azure AI Search2025-05-23T09:00:58+00:00

Is Codex CLI the Future of Coding? Understanding the Potential of This New AI-Powered Development Tool

2025-05-01T00:19:32+00:00

OpenAI is currently one of the most well-known names in artificial intelligence and is known for pushing the limits of what AI can accomplish. Over the years, the company has created a series of innovative solutions to make AI more useful and accessible to both individuals and businesses. The most widely used AI tool globally is their very own ChatGPT, an AI-powered virtual assistant capable of achieving different tasks such as answering queries, content creation, learning about new subjects, and even programming. With millions of users globally, ChatGPT has shown just how powerful AI can be in everyday life. Now, [...]

Is Codex CLI the Future of Coding? Understanding the Potential of This New AI-Powered Development Tool2025-05-01T00:19:32+00:00

Seamless Monitoring: Get Slack Alerts for Every AWS Lambda Function Update

2025-02-28T10:10:47+00:00

Keeping track of updates in your AWS Lambda function seems like an easy task, but it is actually time-consuming. Leaving your Lambda function unattended after deployment may incur risks in missing crucial updates that may affect its overall performance and functionality. And most of the time, you also do development tasks which might limit your attention to these Lambda functions. That's why you must be informed whenever an update is made to your Lambda function. Whether done by yourself or by your teammates and collaborators, being informed of these changes will help you maintain its efficiency, especially when diagnosing issues [...]

Seamless Monitoring: Get Slack Alerts for Every AWS Lambda Function Update2025-02-28T10:10:47+00:00

Troubleshooting AWS Lambda and Amazon DynamoDB Connection Issues

2025-01-24T09:29:31+00:00

Many consider Amazon DynamoDB to be one of the most effective solutions for handling vast amounts of data in the AWS Cloud. Its serverless architecture and highly scalable design ensure reliable performance, making it suitable for applications that demand fast, consistent, and low-latency access to data. DynamoDB's ability to handle large datasets while having steady integration with other AWS services further makes it appropriate for data-driven features. Its serverless design and usability help AWS Lambda functions to process data efficiently, making it ideal for building high-performance and reliable applications. However, integrating these two AWS applications doesn't always work seamlessly as [...]

Troubleshooting AWS Lambda and Amazon DynamoDB Connection Issues2025-01-24T09:29:31+00:00

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