codeprogrammer | Unsorted

Telegram-канал codeprogrammer - Machine Learning with Python

68382

Learn Machine Learning with hands-on Python tutorials, real-world code examples, and clear explanations for researchers and developers. Admin: @HusseinSheikho || @Hussein_Sheikho

Subscribe to a channel

Machine Learning with Python

🛫 ML Roadmap 2026 — a comprehensive guide to entering ML, LLM, and MLOps

A rather insightful ML roadmap has gone viral on GitHub: within it, the author has compiled a path from a foundation in mathematics, NumPy, and Pandas to LLM, agentic RAG, fine-tuning, MLOps, and interview preparation. The repository indeed includes sections on Karpathy, MCP, RLHF, LoRA/PEFT, and system design for AI interviews.

Conveniently, this isn't just a list of random links, but rather a structured route through the topics:
▶️ Foundations and tools;
▶️ Classic ML;
▶️ LLM and agents;
▶️ Engineering and MLOps;
▶️ Interview preparation.

➡️ GitHub link:
https://github.com/loganthorneloe/ml-roadmap

tags: #ml #llm

/channel/CodeProgrammer

Читать полностью…

Machine Learning with Python

👨🏻‍💻 6 Free Python Certifications >>>

Python for Beginners -
https://learn.microsoft.com/en-us/shows/intro-to-python-development/

Programming with Python 3. X
https://www.simplilearn.com/free-python-programming-course-skillup

Advanced Python -
https://www.codecademy.com/learn/learn-advanced-python

AI Python for Beginners -
https://www.deeplearning.ai/short-courses/ai-python-for-beginners/

Python Libraries for Data Science -
https://www.simplilearn.com/learn-python-libraries-free-course-skillup

Data Analysis with Python -
https://www.freecodecamp.org/learn/data-analysis-with-python/#data-analysis-with-python-course

Learn more and practice more 👨🏻‍💻
/channel/CodeProgrammer

Читать полностью…

Machine Learning with Python

Follow the Machine Learning with Python channel on WhatsApp: https://whatsapp.com/channel/0029VaC7Weq29753hpcggW2A

Читать полностью…

Machine Learning with Python

Знайшов цікавий сервіс для розробників — ApplicationHubs.

Це платформа, яка дозволяє запускати повноцінне Linux-середовище розробки у хмарі. Можна створити свій Dev Hub, підключитися через SSH, VSCode Remote або JetBrains Gateway і працювати як на звичайному комп'ютері — тільки без налаштування локального середовища.

Підтримуються Docker-проєкти, будь-які мови та фреймворки.

По суті це персональна cloud development machine, яку можна запустити за кілька секунд.

Зараз відкрито ранній доступ (early access).

👉 https://applicationhubs.com

Читать полностью…

Machine Learning with Python

The Ultimate 2026 Python Learning Roadmap: From Beginner to Expert

Start learning #Python in 2026 with a clear, structured #roadmap that takes you from beginner to expert. Build real-world skills through hands-on projects, master essential libraries, and prepare for in-demand careers in data science, web development, and #AI

Start: https://www.coursera.org/resources/python-learning-roadmap

Читать полностью…

Machine Learning with Python

🗂 A fresh deep learning course from MIT is now publicly available

A full-fledged educational course has been published on the university's website: 24 lectures, practical assignments, homework, and a collection of materials for self-study.

The program includes modern neural network architectures, generative models, transformers, inference, and other key topics.

➡️ Link to the course

tags: #Python #DataScience #DeepLearning #AI

Читать полностью…

Machine Learning with Python

🧠 Python libraries for AI agents - complexity of learning 🔥

🟢 Easy
• LangChain
• tool calling
• agent memory
• simple agents

• CrewAI
• agents with roles
• collaboration of several agents

• SmolAgents
• lightweight agents
• quick experiments

🟡 Medium
• LangGraph
• stateful workflow
• agent orchestration

• LlamaIndex
• RAG pipelines
• data indexing
• knowledge agents

• OpenAI Agents SDK
• tool integrations
• agent workflows

• Strands
• agent orchestration
• task coordination

• Semantic Kernel
• skills / plugins
• AI process orchestration

• PydanticAI
• typed LLM applications
• structured agent workflows

• Langroid
• message exchange between agents
• interaction with tools

🔴 Difficult
• AutoGen
• multi-agent dialogues
• autonomous agent cooperation

• DSPy
• programmable prompting
• optimization of LLM pipelines

• A2A
• agent-to-agent protocol
• distributed agent systems

/channel/CodeProgrammer

Читать полностью…

Machine Learning with Python

Pandas cheat sheet

Use the following Pandas cheat sheet to quickly reference some of the most common operations you might perform with the Pandas library.

More: https://www.coursera.org/resources/pandas-cheat-sheet

Читать полностью…

Machine Learning with Python

Matplotlib Cheat Sheet (Basics to Advanced)

Learn key Matplotlib functions with our Matplotlib cheat sheet. Includes examples, advanced customizations and comparison with Seaborn for better visualizations

Matplotlib is a versatile library in Python used for data visualization. Matplotlib enables the creation of static, interactive, and animated visualizations in Python. It is highly customizable and integrates well with libraries like Pandas and NumPy. Its pyplot module simplifies the process of creating plots similar to MATLAB. This Matplotlib cheat sheet provides an overview of the essential functions, features, and tools available in Matplotlib, along with comparisons to Seaborn where relevant.

Read: https://www.almabetter.com/bytes/cheat-sheet/matplotlib

/channel/CodeProgrammer

Читать полностью…

Machine Learning with Python

10 GitHub Repositories to Master System Design

Want to move beyond drawing boxes and arrows and actually understand how scalable systems are built? These GitHub repositories break down the concepts, patterns, and real-world trade-offs that make great system design possible.

Most engineers encounter system design when preparing for interviews, but in reality, it is much bigger than that. System design is about understanding how large-scale systems are built, why certain architectural decisions are made, and how trade-offs shape everything from performance to reliability. Behind every app you use daily, from messaging platforms to streaming services, there are careful decisions about databases, caching, load balancing, fault tolerance, and consistency models.

What makes system design challenging is that there is rarely a single correct answer. You are constantly balancing cost, scalability, latency, complexity, and future growth. Should you shard the database now or later? Do you prioritize strong consistency or eventual consistency? Do you optimize for reads or writes? These are the kinds of questions that separate surface-level knowledge from real architectural thinking.

The good news is that many experienced engineers have documented these patterns, breakdowns, and interview strategies openly on GitHub. Instead of learning only through trial and error, you can study real case studies, curated resources, structured interview frameworks, and production-grade design principles from the community.

In this article, we review 10 GitHub repositories that cover fundamentals, interview preparation, distributed systems concepts, machine learning system design, agent-based architectures, and real-world scalability case studies. Together, they provide a practical roadmap for developing the structured thinking required to design reliable systems at scale.

Read: https://www.kdnuggets.com/10-github-repositories-to-master-system-design

/channel/DataScienceM

Читать полностью…

Machine Learning with Python

⚡️ MIT has released a full course on Deep Learning - for free

MIT OpenCourseWare has published the course 6.7960 Deep Learning (Fall 2024) — one of the most relevant and practical university courses on modern deep learning.

It includes full-fledged lectures at a top-university level, available for free.

What's in the course

- Fundamentals of deep learning and architectures 
- Transformers and modern models 
- Generative AI 
- Self-supervised learning 
- Scaling laws 
- Diffusion and generative models 
- RL and reinforcement learning 
- Practical analyses of modern approaches 

The lectures are led by MIT professors and researchers working with cutting-edge technologies.

Why it's valuable

This is not a basic course for beginners. 
This is material at the level of:
- ML engineers 
- researchers 
- developers of AI systems 

The course reflects the current state of the industry and explains how people who create modern models think.

It's perfect if you:
- already know Python and the basics of ML 
- want to transition to Deep Learning 
- work with LLMs / AI 
- want a systematic understanding instead of individual tutorials 

If you want FAANG / Research-level knowledge - learn from MIT.

https://ocw.mit.edu/courses/6-7960-deep-learning-fall-2024/video_galleries/lecture-videos/

/channel/CodeProgrammer

Читать полностью…

Machine Learning with Python

🌟 Generative AI Training for Beginners

A course from Microsoft with 21 lessons covering the basics of creating applications based on generative AI. Each lesson includes theory and practical examples in Python and TypeScript, allowing you to learn at a comfortable pace.

🚀 Key features:
- 21 lessons on generative #AI
- Support for Python and TypeScript
- Lessons with theory and practical tasks
- Additional resources for in-depth study
- Multilingual support

📌 GitHub: https://github.com/microsoft/generative-ai-for-beginners

#python #LLMS #generative_Ai

/channel/CodeProgrammer

Читать полностью…

Machine Learning with Python

https://whatsapp.com/channel/0029VaC7Weq29753hpcggW2A

our channel on WhatsApp

Читать полностью…

Machine Learning with Python

#Polars Cheat Sheet with example

Learn and Run online: https://colab.research.google.com/github/FranzDiebold/polars-cheat-sheet/blob/main/polars-cheat-sheet.ipynb

/channel/DataAnalyticsX 🔴

Читать полностью…

Machine Learning with Python

Dijital çağda her gün yeni platformlar karşımıza çıkıyor; ancak konu hızlı altyapı, akıllı sistemler ve akıcı kullanıcı deneyimi olduğunda işler değişiyor. 🤖⚡
Bugün artık sıradan bir site değil, optimize edilmiş, yapay zekâ destekli ve performans odaklı projeler fark yaratıyor. İşte tam bu noktada casino betchan, teknik altyapısı ve hız optimizasyonuyla öne çıkan adreslerden biri. Gereksiz yük yok, bekleme ekranı yok, sistem gecikmesi yok. Platform adeta algoritmik bir akışla çalışıyor. Detaylı teknik inceleme için 👉 https://betchan-casino.org/
🚀 İlk Adım: Optimize Edilmiş ve Akıllı Giriş Süreci
Modern projelerde en kritik nokta ilk temas süresidir. betchan login süreci minimum adım, maksimum hız prensibiyle tasarlanmış. Uzun ve karmaşık formlar yerine sade, hızlı ve kullanıcı odaklı bir akış sunuluyor.
Yeni kullanıcılar için ise veri odaklı teşvik modeli devrede:
betchan no deposit welcome bonus, yatırım yapmadan sistemi test etme imkânı tanıyor. Risk minimize edilirken deneyim süresi maksimize ediliyor — akıllı başlangıç tam olarak budur.
🎁 Dinamik Bonus Mimarisi
Platforma giriş yaptıktan sonra sistem sizi statik kampanyalarla değil, dinamik promosyon yapısıyla karşılıyor.
betchan casino bonus kampanyaları, kullanıcı davranışına göre optimize edilmiş teşvikler sunarak oyun süresini artırıyor.
Zaman zaman aktif olan betchan free bonus ya da bet chan free bonus fırsatları ise ekstra bakiye avantajı sağlıyor.
Slot tutkunları için betchan casino free spins kampanyaları performans odaklı oyun deneyimini daha da heyecanlı hale getiriyor. Yüksek çözünürlüklü grafikler, akıcı animasyonlar ve kesintisiz altyapı birleştiğinde ortaya gerçek zamanlı bir performans deneyimi çıkıyor.
Güncel kampanya kodlarını takip etmek isteyenler için:
betchan casino promo codes ve aktif betchan bonus code fırsatları sistem içinde düzenli olarak güncelleniyor. Doğru zamanda doğru kodu kullanmak, akıllı kullanıcı stratejisinin bir parçası.
💰 Gerçek Zamanlı Performans: Real Money Altyapısı
Platformun oyun kütüphanesi geniş ve teknik olarak güçlü. Binlerce slot, canlı masa oyunları ve optimize edilmiş grafik motoru sayesinde sistem yüksek performansta çalışıyor.
casino betchan real money seçeneği ile gerçek para deneyiminde de akış kesintisiz devam ediyor. Donma, lag veya bağlantı kopmaları minimum seviyede tutulmuş. Bu da altyapının doğru şekilde yapılandırıldığını gösteriyor.
Hızlı, modern ve yapay zekâ destekli bir dijital proje deneyimi arıyorsanız detaylara göz atabilirsiniz:
👉 https://betchan-casino.org/
Gelecek hızda gizli. ⚡
Doğru platformu seçmek ise akıllı kullanıcıların işi.

Читать полностью…

Machine Learning with Python

🗂 Building our own mini-Skynet — a collection of 10 powerful AI repositories from big tech companies

1. Generative AI for Beginners and AI Agents for Beginners
Microsoft provides a detailed explanation of generative AI and agent architecture: from theory to practice.

2. LLMs from Scratch
Step-by-step assembly of your own GPT to understand how LLMs are structured "under the hood".

3. OpenAI Cookbook
An official set of examples for working with APIs, RAG systems, and integrating AI into production from OpenAI.

4. Segment Anything and Stable Diffusion
Classic tools for computer vision and image generation from Meta and the CompVis research team.

5. Python 100 Days and Python Data Science Handbook
A powerful resource for Python and data analysis.

6. LLM App Templates and ML for Beginners
Ready-made app templates with LLMs and a structured course on classic machine learning.

If you want to delve deeply into AI or start building your own projects — this is an excellent starting kit.

tags: #github #LLM #AI #ML

➡️ /channel/CodeProgrammer

Читать полностью…

Machine Learning with Python

🚀 Top 25 Machine Learning Architecture Questions (Every ML Engineer Should Know)

Machine Learning isn’t just about training models it’s about designing systems that scale, perform, and survive production.
If you’re preparing for ML interviews, system design rounds, or real-world MLOps work, these are the most important ML Architecture questions you should be comfortable answering

🧠 Core ML Architecture Concepts
1️⃣ What is Machine Learning architecture and why does it matter?
2️⃣ Batch inference vs Real-time inference
3️⃣ What is model serving and common tools used
4️⃣ Data drift: what it is and how to handle it
5️⃣ Feature stores and their role in ML systems
6️⃣ What is MLOps and why it’s critical

⚙️ Training, Optimization & Pipelines
7️⃣ Training vs fine-tuning
8️⃣ Regularization techniques (L1, L2, Dropout, Early stopping)
9️⃣ Model versioning in production
🔟 ML pipelines and workflow automation
1️⃣1️⃣ CI/CD for ML systems

🗄 Data, Embeddings & Databases
1️⃣2️⃣ Choosing the right database for ML
1️⃣3️⃣ What are embeddings and why they’re powerful
1️⃣4️⃣ Handling sensitive data (GDPR, HIPAA, security)

📊 Monitoring, Explainability & Scaling
1️⃣5️⃣ Monitoring tools for ML models
1️⃣6️⃣ Explainability vs Interpretability
1️⃣7️⃣ Horizontal vs Vertical scaling
1️⃣8️⃣ Ensuring reproducibility in ML
1️⃣9️⃣ Factors affecting ML latency

🚢 Deployment & Production Strategies
2️⃣0️⃣ Why Docker/containerization matters
2️⃣1️⃣ GPU-accelerated deployment — when & why
2️⃣2️⃣ A/B testing in ML systems
2️⃣3️⃣ Multi-model deployment strategies
2️⃣4️⃣ Model rollback strategies
2️⃣5️⃣ Designing ML architectures for scalability

Читать полностью…

Machine Learning with Python

Machine Learning in Python (Course Notes)

I just went through an amazing resource on #MachineLearning in #Python by 365 Data Science, and I had to share the key takeaways with you!

Here’s what you’ll learn:

🔘 Linear Regression - The foundation of predictive modeling

🔘 Logistic Regression - Predicting probabilities and classifications

🔘 Clustering (K-Means, Hierarchical) - Making sense of unstructured data

🔘 Overfitting vs. Underfitting - The balancing act every ML engineer must master

🔘 OLS, R-squared, F-test - Key metrics to evaluate your models

/channel/CodeProgrammer || Share 🌐 and Like 👍

Читать полностью…

Machine Learning with Python

🎁 23 Years of SPOTO – Claim Your Free IT Certs Prep Kit!

🔥Whether you're preparing for #Python, #AI, #Cisco, #PMI, #Fortinet, #AWS, #Azure, #Excel, #comptia, #ITIL, #cloud or any other in-demand certification – SPOTO has got you covered!

Free Resources :
・Free Python, Excel, Cyber Security, Cisco, SQL, ITIL, PMP, AWS courses: https://bit.ly/4lk4m3c
・IT Certs E-book: https://bit.ly/4bdZOqt
・IT Exams Skill Test: https://bit.ly/4sDvi0b
・Free AI material and support tools: https://bit.ly/46TpsQ8
・Free Cloud Study Guide: https://bit.ly/4lk3dIS

🎁 Join SPOTO 23rd anniversary Lucky Draw:
📱 iPhone 17
🛒free order
🛒 Amazon Gift Card $50/$100
📘 AI/CCNA/PMP Course Training + Study Material + eBook
Enter the Draw 👉: https://bit.ly/3NwkceD

👉 Become Part of Our IT Learning Circle! resources and support:
https://chat.whatsapp.com/Cnc5M5353oSBo3savBl397

💬 Want exam help? Chat with an admin now!
wa.link/rozuuw

Last Chance – Get It Before It’s Gone!

Читать полностью…

Machine Learning with Python

Why pay $20 for each AI when you can access 90+ AI tools for the price of a single subscription?

The ultimate "Swiss Army Knife" of the AI world!

Why it’s a game-changer:

All the top models in one place: ChatGPT-4o, Midjourney, Claude 3.5, Gemini, Nano Banana 2, and more.

Convenience: Work via your browser or directly through the Telegram bot.

No limits: Runs smoothly without a VPN, with flexible payment options.

Why you can trust it:

👥 Community: 700,000+ users on Telegram.

🧑‍🎓 Free Academy: Video tutorials included (perfect even for beginners).

🎥 Expert Content: Dedicated YouTube channel with deep dives.

Stop collecting subscriptions. Switch to the unified standard for AI access.

Try it now

Читать полностью…

Machine Learning with Python

This channels is for Programmers, Coders, Software Engineers.

0️⃣ Python
1️⃣ Data Science
2️⃣ Machine Learning
3️⃣ Data Visualization
4️⃣ Artificial Intelligence
5️⃣ Data Analysis
6️⃣ Statistics
7️⃣ Deep Learning
8️⃣ programming Languages

/channel/addlist/8_rRW2scgfRhOTc0

/channel/Codeprogrammer

Читать полностью…

Machine Learning with Python

ML Engineer, LLM Engineer, take note: TorchCode

A platform with practice tasks for basic implementations in PyTorch and questions on Transformer, which are often encountered in interviews.

→ Gathers in 39 structured tasks typical for #ML #interviews - implementations of operators, modules, and architectures in #PyTorch.
→ Provides auto-checking, gradient checking, time measurement, and instant feedback, so that the practice more closely resembles #LeetCode for interviews.
→ Built on the basis of Jupyter Notebook, while supporting one-click reset, hints, reference solutions, and progress tracking.
→ Covers such frequent topics as ReLU, Softmax, LayerNorm, Attention, RoPE, Flash Attention, #LoRA, $MoE, and others.
→ Supports online mode via Hugging Face Spaces, opening individual tasks in #Google #Colab, and local launch via #Docker.

👉 https://github.com/duoan/TorchCode

Читать полностью…

Machine Learning with Python

Python Cheat Sheet: Beginner to Expert Guide

This #Python cheat sheet covers basics to advanced concepts, regex, list slicing, loops and more. Perfect for quick reference and enhancing your coding skills.

Read: https://www.almabetter.com/bytes/cheat-sheet/python

/channel/DataScience4 ✉️

Читать полностью…

Machine Learning with Python

This cheat sheet—part of our Complete Guide to #NumPy, #pandas, and #DataVisualization—offers a handy reference for essential pandas commands, focused on efficient #datamanipulation and analysis. Using examples from the Fortune 500 Companies #Dataset, it covers key pandas operations such as reading and writing data, selecting and filtering DataFrame values, and performing common transformations.

You'll find easy-to-follow examples for grouping, sorting, and aggregating data, as well as calculating statistics like mean, correlation, and summary statistics. Whether you're cleaning datasets, analyzing trends, or visualizing data, this cheat sheet provides concise instructions to help you navigate pandas’ powerful functionality.

Designed to be practical and actionable, this guide ensures you can quickly apply pandas’ versatile data manipulation tools in your workflow.

/channel/CodeProgrammer

Читать полностью…

Machine Learning with Python

Pandas vs. Polars: A Complete Comparison of Syntax, Speed, and Memory

Need help choosing the right #Python dataframe library? This article compares #Pandas and #Polars to help you decide.

If you've been working with data in Python, you've almost certainly used pandas. It's been the go-to library for data manipulation for over a decade. But recently, Polars has been gaining serious traction. Polars promises to be faster, more memory-efficient, and more intuitive than pandas. But is it worth learning? And how different is it really?

In this article, we'll compare pandas and Polars side-by-side. You'll see performance benchmarks, and learn the syntax differences. By the end, you'll be able to make an informed decision for your next data project.

Read: https://www.kdnuggets.com/pandas-vs-polars-a-complete-comparison-of-syntax-speed-and-memory

/channel/CodeProgrammer 🌺

Читать полностью…

Machine Learning with Python

Excellent free courses on neural networks from Nvidia— the company decided to share knowledge that usually costs 90 dollars.

Here's everything important: video processing, app development, robotics, and much more. An electronic certificate is issued upon completion of the training.

We gain useful knowledge —
https://developer.nvidia.com/join-nvidia-developer-program

/channel/CodeProgrammer 🌟

Читать полностью…

Machine Learning with Python

🤖 Best GitHub repositories to learn AI from scratch in 2026

If you want to understand AI not through "vacuum" courses, but through real open-source projects - here's a top list of repos that really lead you from the basics to practice:

1) Karpathy – Neural Networks: Zero to Hero 
The most understandable introduction to neural networks and backprop "in layman's terms"
https://github.com/karpathy/nn-zero-to-hero

2) Hugging Face Transformers 
The main library of modern NLP/LLM: models, tokenizers, fine-tuning 
https://github.com/huggingface/transformers

3) FastAI – Fastbook 
Practical DL training through projects and experiments 
https://github.com/fastai/fastbook

4) Made With ML 
ML as an engineering system: pipelines, production, deployment, monitoring 
https://github.com/GokuMohandas/Made-With-ML

5) Machine Learning System Design (Chip Huyen) 
How to build ML systems in real business: data, metrics, infrastructure 
https://github.com/chiphuyen/machine-learning-systems-design

6) Awesome Generative AI Guide 
A collection of materials on GenAI: from basics to practice 
https://github.com/aishwaryanr/awesome-generative-ai-guide

7) Dive into Deep Learning (D2L) 
One of the best books on DL + code + assignments 
https://github.com/d2l-ai/d2l-en

Save it for yourself - this is a base on which you can really grow into an ML/LLM engineer.

#Python #datascience #DataAnalysis #MachineLearning #AI #DeepLearning #LLMS

/channel/CodeProgrammer

Читать полностью…

Machine Learning with Python

💾 6 AI courses from Anthropic for free

If you work with AI, agents, or APIs, this is the foundation that developers in top companies are currently going through.

▶️ Working with the Claude API

https://anthropic.skilljar.com/claude-with-the-anthropic-api 


▶️ Introduction to Model Context Protocol (MCP)
https://anthropic.skilljar.com/introduction-to-model-context-protocol 


▶️ Claude in Amazon Bedrock
https://anthropic.skilljar.com/claude-in-amazon-bedrock 


▶️ Claude in Google Cloud (Vertex AI)
https://anthropic.skilljar.com/claude-with-google-vertex 


▶️ Advanced MCP
https://anthropic.skilljar.com/model-context-protocol-advanced-topics 


▶️ Claude Code in Practice
https://anthropic.skilljar.com/claude-code-in-action 


tags: #courses #ai

/channel/CodeProgrammer

Читать полностью…

Machine Learning with Python

🗂 One of the best resources for learning Data Science and Machine Learning

Kaggle offers interactive courses that will help you quickly understand the key topics of DS and ML.

The format is simple: short lessons, practical tasks, and a certificate upon completion — all for free.

Inside:

• basics of Python for data analysis;
• machine learning and working with models;
• pandas, SQL, visualization;
• advanced techniques and practical cases.


Each course takes just 3–5 hours and immediately provides practical knowledge for work.

Link to the platform

tags: #ML #DEEPLEARNING #AI

/channel/CodeProgrammer

Читать полностью…

Machine Learning with Python

🌟 Join @DeepLearning_ai & @MachineLearning_Programming! 🌟
Explore AI, ML, Data Science, and Computer Vision with us. 🚀

💡 Stay Updated: Latest trends & tutorials.
🌐 Grow Your Network: Engage with experts.
📈 Boost Your Career: Unlock tech mastery.

Subscribe Now!
➡️ @DeepLearning_ai
➡️ @MachineLearning_Programming

Step into the future—today! ✨

Читать полностью…
Subscribe to a channel