Machine Learning & Artificial Intelligence | Data Science Free Courses
64.1K subscribers
556 photos
2 videos
98 files
425 links
Perfect channel to learn Data Analytics, Data Sciene, Machine Learning & Artificial Intelligence

Admin: @coderfun
Download Telegram
If you're looking for a simple, fast, and creative platform to work with artificial intelligence, then woopicx.com is exactly what you need! ๐Ÿ’ก
With Woopicx AI, you can easily:
โ€ข create high-quality images in various styles,
โ€ข find new ideas and inspiration for your projects โ˜๏ธ,
โ€ข and most importantly โ€” get your work done faster and smarter โšก๏ธ.
This tool is simple, user-friendly, and perfect for designers, content creators, and anyone interested in the world of AI ๐Ÿค–๐ŸŽจ.
โค7
๐Ÿ”ค Aโ€“Z of Artificial Intelligence ๐Ÿค–

A โ€“ Algorithm
A step-by-step procedure used by machines to solve problems or perform tasks.

B โ€“ Backpropagation
A core technique in training neural networks by minimizing error through gradient descent.

C โ€“ Computer Vision
AI field focused on enabling machines to interpret and understand visual information.

D โ€“ Deep Learning
A subset of ML using neural networks with many layers to model complex patterns.

E โ€“ Ethics in AI
Concerns around fairness, bias, transparency, and responsible AI development.

F โ€“ Feature Engineering
The process of selecting and transforming variables to improve model performance.

G โ€“ GANs (Generative Adversarial Networks)
Two neural networks competing to generate realistic data, like images or audio.

H โ€“ Hyperparameters
Settings like learning rate or batch size that control model training behavior.

I โ€“ Inference
Using a trained model to make predictions on new, unseen data.

J โ€“ Jupyter Notebook
An interactive coding environment widely used for prototyping and sharing AI projects.

K โ€“ K-Means Clustering
A popular unsupervised learning algorithm for grouping similar data points.

L โ€“ LSTM (Long Short-Term Memory)
A type of RNN designed to handle long-term dependencies in sequence data.

M โ€“ Machine Learning
A core AI technique where systems learn patterns from data to make decisions.

N โ€“ NLP (Natural Language Processing)
AI's ability to understand, interpret, and generate human language.

O โ€“ Overfitting
When a model learns noise in training data and performs poorly on new data.

P โ€“ PyTorch
A flexible deep learning framework popular in research and production.

Q โ€“ Q-Learning
A reinforcement learning algorithm that helps agents learn optimal actions.

R โ€“ Reinforcement Learning
Training agents to make decisions by rewarding desired behaviors.

S โ€“ Supervised Learning
ML where models learn from labeled data to predict outcomes.

T โ€“ Transformers
A deep learning architecture powering models like BERT and GPT.

U โ€“ Unsupervised Learning
ML where models find patterns in data without labeled outcomes.

V โ€“ Validation Set
A subset of data used to tune model parameters and prevent overfitting.

W โ€“ Weights
Parameters in neural networks that are adjusted during training to minimize error.

X โ€“ XGBoost
A powerful gradient boosting algorithm used for structured data problems.

Y โ€“ YOLO (You Only Look Once)
A real-time object detection system used in computer vision.

Z โ€“ Zero-shot Learning
AI's ability to make predictions on tasks it hasnโ€™t explicitly been trained on.

Double Tap โ™ฅ๏ธ For More
โค15
Python Commands Cheatsheet โœ…
โค5๐Ÿ‘2
๐Ÿง  7 Smart Tips to Crack Machine Learning Interviews ๐Ÿš€๐Ÿ“ˆ

1๏ธโƒฃ Understand ML End-to-End
โฆ Know the pipeline: data prep โ†’ modeling โ†’ evaluation โ†’ deployment
โฆ Be clear on supervised vs unsupervised learning

2๏ธโƒฃ Focus on Feature Engineering
โฆ Show how you create useful features
โฆ Explain how they impact model performance

3๏ธโƒฃ Communicate Clearly
โฆ Simplify complex topics
โฆ Use structured answers: Problem โ†’ Approach โ†’ Result

4๏ธโƒฃ Be Ready for Code Questions
โฆ Practice with NumPy, Pandas, and Scikit-learn
โฆ Be comfortable writing clean, testable functions

5๏ธโƒฃ Model Selection Logic
โฆ Donโ€™t just say you used XGBoost
โฆ Explain why it fits your problem

6๏ธโƒฃ Tackle ML Ops Questions
โฆ Learn basics of deployment, APIs, model monitoring
โฆ Understand tools like Docker, MLflow

7๏ธโƒฃ Practice Mock Interviews
โฆ Simulate pressure
โฆ Get feedback on technical + communication skills

๐Ÿ’ฌ Double tap โค๏ธ for more!
โค2๐Ÿ‘1
โœ… Top Machine Learning Projects That Strengthen Your Resume ๐Ÿง ๐Ÿ’ผ

1. House Price Prediction
โ†’ Use regression with Scikit-learn on Boston or Kaggle datasets
โ†’ Feature engineering and evaluation with RMSE for real estate insights

2. Iris Flower Classification
โ†’ Apply logistic regression or decision trees on classic UCI data
โ†’ Visualize clusters and accuracy metrics like confusion matrices

3. Titanic Survival Prediction
โ†’ Handle missing data and build classifiers with Random Forests
โ†’ Interpret feature importance for demographic survival factors

4. Credit Card Fraud Detection
โ†’ Tackle imbalanced data using SMOTE and isolation forests
โ†’ Deploy anomaly detection with precision-recall for financial security

5. Movie Recommendation System
โ†’ Implement collaborative filtering with Surprise or matrix factorization
โ†’ Evaluate with NDCG and personalize suggestions based on user ratings

6. Handwritten Digit Recognition
โ†’ Train CNNs with TensorFlow on MNIST dataset
โ†’ Achieve high accuracy and add real-time prediction for digit input

7. Customer Churn Prediction
โ†’ Model telecom data with XGBoost for retention forecasts
โ†’ Include SHAP explanations and business impact simulations

Tips:
โฆ Leverage libraries like Scikit-learn, TensorFlow, and PyTorch for scalability
โฆ Deploy via Streamlit or Flask and track with MLflow for production readiness
โฆ Focus on metrics, ethics, and GitHub repos with detailed READMEs

๐Ÿ’ฌ Tap โค๏ธ for more!
โค12๐Ÿ‘3
๐Ÿค– CHATGPT CHEAT SHEET

๐Ÿง  Master prompting by giving ChatGPT the right role, goal, style & format!

๐ŸŽญ Give a Role
โฆ Act as a writer
โฆ Act as a software engineer
โฆ Act as a YouTuber
โฆ Act as a proofreader
โฆ Act as a researcher

๐ŸŽฏ Define the Goal
โฆ Write a blog post
โฆ Proofread this email
โฆ Give me a recipe for...
โฆ Analyze this text
โฆ Write a script for a video

โš™๏ธ Set Restrictions
โฆ Use simple language
โฆ Be concise
โฆ Write in a persuasive tone
โฆ Use scientific sources
โฆ Write in basic English

๐Ÿ“‘ Define Format
โฆ Answer in bullet points
โฆ Include subheadings
โฆ Use a numbered list
โฆ Add emojis
โฆ Answer using code

โœ… Example Prompt:
"Act as a professional copywriter. Write a blog post on 'How to Stay Focused While Studying'. Use simple English, write in a friendly tone, and format it with subheadings and bullet points."

๐Ÿ’ก Double Tap โ™ฅ๏ธ For More
โค8๐Ÿ‘3
๐ŸŒ Machine Learning Tools & Their Use Cases ๐Ÿง ๐Ÿ”„

๐Ÿ”น TensorFlow โžœ Building scalable deep learning models for production deployment
๐Ÿ”น PyTorch โžœ Flexible research and dynamic neural networks for rapid prototyping
๐Ÿ”น Scikit-learn โžœ Traditional ML algorithms like classification and clustering on structured data
๐Ÿ”น Keras โžœ High-level API for quick neural network building and experimentation
๐Ÿ”น XGBoost โžœ Gradient boosting for high-accuracy predictions on tabular data
๐Ÿ”น Hugging Face Transformers โžœ Pre-trained NLP models for text generation and sentiment analysis
๐Ÿ”น LightGBM โžœ Fast gradient boosting with efficient handling of large datasets
๐Ÿ”น OpenCV โžœ Computer vision tasks like image processing and object detection
๐Ÿ”น MLflow โžœ Experiment tracking, model versioning, and lifecycle management
๐Ÿ”น Jupyter Notebook โžœ Interactive coding, visualization, and sharing ML workflows
๐Ÿ”น Apache Spark MLlib โžœ Distributed big data processing for scalable ML pipelines
๐Ÿ”น Git โžœ Version control for collaborative ML project development
๐Ÿ”น Docker โžœ Containerizing ML models for consistent deployment environments
๐Ÿ”น AWS SageMaker โžœ Cloud-based training, tuning, and hosting of ML models
๐Ÿ”น Pandas โžœ Data manipulation and preprocessing for ML datasets

๐Ÿ’ฌ Tap โค๏ธ if this helped!
โค13๐Ÿ‘1
โœ… Machine Learning Explained for Beginners ๐Ÿค–๐Ÿ“š

๐Ÿ“Œ Definition:
Machine Learning (ML) is a type of artificial intelligence that allows systems to learn from data and make decisions or predictions without being explicitly programmed for every task.

1๏ธโƒฃ How It Works:
ML systems are trained on historical data to identify patterns. Once trained, they apply those patterns to new, unseen data.
Example: Feed a model emails labeled "spam" or "not spam," and it learns how to filter spam automatically.

2๏ธโƒฃ Types of Machine Learning:
a) Supervised Learning
โฆ Learns from labeled data (inputs + expected outputs)
โฆ Examples: Email classification, price prediction

b) Unsupervised Learning
โฆ Learns from unlabeled data
โฆ Examples: Customer segmentation, topic modeling

c) Reinforcement Learning
โฆ Learns by interacting with the environment and receiving rewards
โฆ Examples: Game AI, robotics

3๏ธโƒฃ Common Use Cases:
โฆ Recommender systems (Netflix, Amazon)
โฆ Face recognition
โฆ Voice assistants (Alexa, Siri)
โฆ Credit card fraud detection
โฆ Predicting customer churn

4๏ธโƒฃ Why It Matters:
ML powers smart systems and automates complex decisions. It's used across industries for improving speed, accuracy, and personalization.

5๏ธโƒฃ Key Terms Youโ€™ll Hear Often:
โฆ Model: The trained algorithm
โฆ Dataset: Data used to train or test
โฆ Features: Input variables
โฆ Labels: Target outputs
โฆ Training: Feeding data to the model
โฆ Prediction: The model's output

๐Ÿ’ก Start with simple projects like spam detection or house price prediction using Python and scikit-learn.

๐Ÿ’ฌ Tap โค๏ธ for more!
โค13๐Ÿ‘2๐Ÿ‘Ž2
Sber presented Europeโ€™s largest open-source project at AI Journey as it opened access to its flagship models โ€” the GigaChat Ultra-Preview and Lightning, in addition to a new generation of the GigaAM-v3 open-source models for speech recognition and a full range of image and video generation models in the new Kandinsky 5.0 line, including the Video Pro, Video Lite and Image Lite.

The GigaChat Ultra-Preview, a new MoE model featuring 702 billion parameters, has been compiled specifically with the Russian language in mind and trained entirely from scratch. Read a detailed post from the team here.

For the first time in Russia, an MoE model of this scale has been trained entirely from scratch โ€” without relying on any foreign weights. Training from scratch, and on such a scale to boot, is a challenge that few teams in the world have taken on.

Our flagship Kandinsky Video Pro model has caught up with Veo 3 in terms of visual quality and surpassed Wan 2.2-A14B. Read a detailed post from the team here.

The code and weights for all models are now available to all users under MIT license, including commercial use.
โค6๐Ÿ‘2
โœ… Roadmap to Become a Data Scientist ๐Ÿงช๐Ÿ“Š

1. Strong Foundation
โฆ Advanced Math & Stats: Linear algebra, calculus, probability
โฆ Programming: Python or R (advanced skills)
โฆ Data Wrangling & Cleaning

2. Machine Learning Basics
โฆ Supervised & unsupervised learning
โฆ Regression, classification, clustering
โฆ Libraries: Scikit-learn, TensorFlow, Keras

3. Data Visualization
โฆ Master Matplotlib, Seaborn, Plotly
โฆ Build dashboards with Tableau or Power BI

4. Deep Learning & NLP
โฆ Neural networks, CNN, RNN
โฆ Natural Language Processing basics

5. Big Data Technologies
โฆ Hadoop, Spark, Kafka
โฆ Cloud platforms: AWS, Azure, GCP

6. Model Deployment
โฆ Flask/Django for APIs
โฆ Docker, Kubernetes basics

7. Projects & Portfolio
โฆ Real-world datasets
โฆ Competitions on Kaggle

8. Communication & Storytelling
โฆ Explain complex insights simply
โฆ Visual & written reports

9. Interview Prep
โฆ Data structures, algorithms
โฆ ML concepts, case studies

๐Ÿ’ฌ Tap โค๏ธ for more!
โค7
List of AI Project Ideas ๐Ÿ‘จ๐Ÿปโ€๐Ÿ’ป๐Ÿค–

Beginner Projects

๐Ÿ”น Sentiment Analyzer
๐Ÿ”น Image Classifier
๐Ÿ”น Spam Detection System
๐Ÿ”น Face Detection
๐Ÿ”น Chatbot (Rule-based)
๐Ÿ”น Movie Recommendation System
๐Ÿ”น Handwritten Digit Recognition
๐Ÿ”น Speech-to-Text Converter
๐Ÿ”น AI-Powered Calculator
๐Ÿ”น AI Hangman Game

Intermediate Projects

๐Ÿ”ธ AI Virtual Assistant
๐Ÿ”ธ Fake News Detector
๐Ÿ”ธ Music Genre Classification
๐Ÿ”ธ AI Resume Screener
๐Ÿ”ธ Style Transfer App
๐Ÿ”ธ Real-Time Object Detection
๐Ÿ”ธ Chatbot with Memory
๐Ÿ”ธ Autocorrect Tool
๐Ÿ”ธ Face Recognition Attendance System
๐Ÿ”ธ AI Sudoku Solver

Advanced Projects

๐Ÿ”บ AI Stock Predictor
๐Ÿ”บ AI Writer (GPT-based)
๐Ÿ”บ AI-powered Resume Builder
๐Ÿ”บ Deepfake Generator
๐Ÿ”บ AI Lawyer Assistant
๐Ÿ”บ AI-Powered Medical Diagnosis
๐Ÿ”บ AI-based Game Bot
๐Ÿ”บ Custom Voice Cloning
๐Ÿ”บ Multi-modal AI App
๐Ÿ”บ AI Research Paper Summarizer

React โค๏ธ for more
โค23
SQL Interview Questions! ๐Ÿ”ฅ๐Ÿš€


Basic SQL Interview Questions:

-
What is SQL?

- What are the different types of SQL commands?

- What is the difference between DDL, DML, DCL, and TCL?

- What is the difference between SQL and MySQL?

- What is a primary key?

- What is a foreign key?

- What is a unique key?

- What is the difference between primary key and unique key?

- What is the difference between HAVING and WHERE?

- What are constraints in SQL? Name a few.

- What is the difference between CHAR and VARCHAR?

- What is Normalization? What are its types?

- What is Denormalization?

- What is an index in SQL?

- What are the different types of indexes?

- What is the difference between Clustered and Non-clustered indexes?

- What is an alias in SQL?

- What is the difference between DELETE and TRUNCATE?

- What is the difference between TRUNCATE and DROP?

- What is a view in SQL?


-------------------------------------

Intermediate SQL Interview Questions:

What is a self-join?

What is an inner join?

What is the difference between INNER JOIN and OUTER JOIN?

What are the types of OUTER JOIN?

What is a cross join?

What is a Cartesian join?

What is the difference between UNION and UNION ALL?

What is the difference between JOIN and UNION?

What is a stored procedure?

What is a trigger in SQL?

What are the different types of triggers?

What is the difference between HAVING and GROUP BY?

What are subqueries?

What are correlated subqueries?

What is an EXISTS clause in SQL?

What is the difference between EXISTS and IN?

What is a cursor in SQL?

What is the difference between OLTP and OLAP?

What are ACID properties in SQL?

What is normalization? Explain 1NF, 2NF, 3NF, and BCNF.

What is a composite key?

What is a surrogate key?

What is the use of the COALESCE function?

What is the difference between IS
NULL and IS NOT NULL
?

What is partitioning in SQL?


-------------------------------------

Advanced SQL Interview Questions:

What are window functions in SQL?

What is CTE (Common Table Expression)?

What is the difference between TEMP TABLE and CTE?

What is the difference between RANK(), DENSE_RANK(), and ROW_NUMBER()?

What is a materialized view?

What is the difference between materialized views and normal views?

What is sharding in SQL?

What is the MERGE statement?

What is the JSON data type in SQL?

What is recursive CTE?

What is the difference between LEFT JOIN and LEFT OUTER JOIN?

How does indexing impact performance?

What is the difference between OLAP and OLTP?

What is ETL (Extract, Transform, Load)?

What are window functions? Explain LEAD, LAG, and NTILE.

What is a pivot table in SQL?

What is Dynamic SQL?

What is a NoSQL database? How is it different from SQL databases?

What is the difference between SQL and PL/SQL?

How to find the N-th highest salary in SQL?


-------------------------------------

Practical SQL Queries:

Find the second highest salary from an Employee table.

Find duplicate records in a table.

Write a SQL query to find the count of employees in each department.

Write a query to find employees who earn more than their managers.

Write a query to fetch the first three characters of a string.

Write a SQL query to swap two columns in a table without using a temporary table.

Write a query to find all employees who joined in the last 6 months.

Write a query to find the most repeated values in a column.

Write a query to delete duplicate rows from a table.

Write a SQL query to find all customers who made more than 5 purchases.



React โ™ฅ๏ธ for more content like this ๐Ÿ‘

Here you can find essential SQL Interview Resources๐Ÿ‘‡
https://whatsapp.com/channel/0029VanC5rODzgT6TiTGoa1v

Like this post if you need more ๐Ÿ‘โค๏ธ

Hope it helps :)
โค9๐Ÿ‘3
๐–๐ก๐š๐ญ ๐†๐จ๐จ๐ ๐ฅ๐ž ๐ฃ๐ฎ๐ฌ๐ญ ๐ฎ๐ง๐ฅ๐จ๐œ๐ค๐ž๐ ๐Ÿ๐จ๐ซ ๐ญ๐ก๐ž ๐ฐ๐จ๐ซ๐ฅ๐:
A complete beginner-friendly pathway to understand Generative AI, LLMs, prompt design, and responsible AI.

If youโ€™ve been wanting to break into AI or strengthen your fundamentals, start here ๐Ÿ‘‡

๐๐ž๐ ๐ข๐ง๐ง๐ž๐ซ-๐…๐ซ๐ข๐ž๐ง๐๐ฅ๐ฒ ๐‚๐จ๐ฎ๐ซ๐ฌ๐ž๐ฌ:

1๏ธโƒฃ Introduction to Generative AI
https://lnkd.in/gGDuMktB

2๏ธโƒฃ Introduction to Large Language Models (LLMs)
https://lnkd.in/gKs4M7pa

3๏ธโƒฃ Introduction to Responsible AI
https://lnkd.in/gShBAaUk

4๏ธโƒฃ Prompt Design in Vertex AI
https://lnkd.in/gyy56tAs

5๏ธโƒฃ Responsible AI: Applying AI Principles with Google Cloud
https://lnkd.in/gHxTvXQB

๐Œ๐ฒ ๐ญ๐š๐ค๐ž ๐š๐ฌ ๐š๐ง ๐€๐ˆ ๐ฅ๐ž๐š๐๐ž๐ซ:

The AI wave isnโ€™t coming, itโ€™s already here.
What counted as โ€œadvanced knowledgeโ€ two years ago is basic literacy today.

* If youโ€™re a student, this is a head start.
* If youโ€™re a professional, this is upskilling gold.
* If youโ€™re a leader, this is a blueprint for future-ready teams.

The people who win in AI arenโ€™t the ones who know the most,
theyโ€™re the ones who start early.
โค4๐Ÿ‘Œ2
Normalization vs Standardization: Why Theyโ€™re Not the Same

People treat these two as interchangeable. theyโ€™re not.

๐Ÿ‘‰ Normalization (Min-Max scaling):
Compresses values to 0โ€“1.
Useful when magnitude matters (pixel values, distances).

๐Ÿ‘‰ Standardization (Z-score):
Centers data around mean=0, std=1.
Useful when distribution shape matters (linear/logistic regression, PCA).

๐Ÿ”‘ Key idea:
Normalization preserves relative proportions.
Standardization preserves statistical structure.

Pick the wrong one, and your modelโ€™s geometry becomes distorted.
โค9๐Ÿ‘6
๐Ÿ”ฐ Python Trick
โค10๐Ÿ‘4๐ŸŽ‰1
An incredibly short book, but with a deep analysis of the internal mechanisms of Python, which we use every day. โค๏ธ

Each chapter contains an explanation of a specific language feature, such as working with *args/**kwargs, mutable arguments, generators, decorators, context managers, enumerate/zip, exceptions, dunder methods, and other clever constructs.

Link: https://book.pythontips.com/en/latest/
๐Ÿ‘5โค2
ChatGPT Prompt Cheat Sheet
โค10
โœ… If Data Science Tools Were Charactersโ€ฆ ๐Ÿง ๐Ÿ”

๐Ÿ“ Excel โ€” The Office Guy
Knows a bit of everything. Not flashy, but still gets the job done (until it crashes at 1M rows). ๐Ÿคฆโ€โ™‚๏ธ

๐Ÿ Python โ€” The All-Rounder
Writes poetry, builds models, scrapes web, visualizes dataโ€ฆ and still has time for coffee. โ˜•

๐Ÿ“Š Tableau โ€” The Artist
Can turn boring data into jaw-dropping dashboards. Looks good, speaks in visuals. ๐ŸŽจ

๐Ÿงฎ R โ€” The Statistician
Loves hypothesis tests and plots. Bit quirky, but unmatched in analysis. ๐Ÿค“

๐Ÿ— SQL โ€” The Architect
Knows where everything is stored. Can fetch exactly what you needโ€ฆ if you ask just right. ๐Ÿ›๏ธ

๐ŸŽฏ Scikit-learn โ€” The Model Trainer
Logistic, decision trees, clusteringโ€”you name it. Works fast, plays well with Python. โš™๏ธ

๐Ÿง  TensorFlow/PyTorch โ€” The Gym Bro
Lifts heavy deep learning weights. Complex but powerful. Needs proper tuning and GPUs. ๐Ÿ’ช

๐Ÿ—ƒ Pandas โ€” The Organizer
Cleans, filters, groups, reshapesโ€”loves playing with tables. But can be moody with large files. ๐Ÿ—‚๏ธ

๐Ÿ“ Matplotlib/Seaborn โ€” The Designer Duo
One is technical, the other stylish. Together they make your data look beautiful. โœจ

๐Ÿ” Jupyter Notebook โ€” The Presenter
Explains everything step by step. Talks code, visuals, and markdownโ€”all in one flow. ๐Ÿง‘โ€๐Ÿซ

#DataScience #MachineLearning
โค17๐Ÿ˜2