Data Science & Machine Learning
76K subscribers
809 photos
68 files
719 links
Join this channel to learn data science, artificial intelligence and machine learning with funny quizzes, interesting projects and amazing resources for free

For collaborations: @love_data
Download Telegram
๐Ÿš€ Complete Roadmap to Become a Data Scientist in 5 Months

๐Ÿ“… Week 1-2: Fundamentals
โœ… Day 1-3: Introduction to Data Science, its applications, and roles.
โœ… Day 4-7: Brush up on Python programming ๐Ÿ.
โœ… Day 8-10: Learn basic statistics ๐Ÿ“Š and probability ๐ŸŽฒ.

๐Ÿ” Week 3-4: Data Manipulation & Visualization
๐Ÿ“ Day 11-15: Master Pandas for data manipulation.
๐Ÿ“ˆ Day 16-20: Learn Matplotlib & Seaborn for data visualization.

๐Ÿค– Week 5-6: Machine Learning Foundations
๐Ÿ”ฌ Day 21-25: Introduction to scikit-learn.
๐Ÿ“Š Day 26-30: Learn Linear & Logistic Regression.

๐Ÿ— Week 7-8: Advanced Machine Learning
๐ŸŒณ Day 31-35: Explore Decision Trees & Random Forests.
๐Ÿ“Œ Day 36-40: Learn Clustering (K-Means, DBSCAN) & Dimensionality Reduction.

๐Ÿง  Week 9-10: Deep Learning
๐Ÿค– Day 41-45: Basics of Neural Networks with TensorFlow/Keras.
๐Ÿ“ธ Day 46-50: Learn CNNs & RNNs for image & text data.

๐Ÿ› Week 11-12: Data Engineering
๐Ÿ—„ Day 51-55: Learn SQL & Databases.
๐Ÿงน Day 56-60: Data Preprocessing & Cleaning.

๐Ÿ“Š Week 13-14: Model Evaluation & Optimization
๐Ÿ“ Day 61-65: Learn Cross-validation & Hyperparameter Tuning.
๐Ÿ“‰ Day 66-70: Understand Evaluation Metrics (Accuracy, Precision, Recall, F1-score).

๐Ÿ— Week 15-16: Big Data & Tools
๐Ÿ˜ Day 71-75: Introduction to Big Data Technologies (Hadoop, Spark).
โ˜๏ธ Day 76-80: Learn Cloud Computing (AWS, GCP, Azure).

๐Ÿš€ Week 17-18: Deployment & Production
๐Ÿ›  Day 81-85: Deploy models using Flask or FastAPI.
๐Ÿ“ฆ Day 86-90: Learn Docker & Cloud Deployment (AWS, Heroku).

๐ŸŽฏ Week 19-20: Specialization
๐Ÿ“ Day 91-95: Choose NLP or Computer Vision, based on your interest.

๐Ÿ† Week 21-22: Projects & Portfolio
๐Ÿ“‚ Day 96-100: Work on Personal Data Science Projects.

๐Ÿ’ฌ Week 23-24: Soft Skills & Networking
๐ŸŽค Day 101-105: Improve Communication & Presentation Skills.
๐ŸŒ Day 106-110: Attend Online Meetups & Forums.

๐ŸŽฏ Week 25-26: Interview Preparation
๐Ÿ’ป Day 111-115: Practice Coding Interviews (LeetCode, HackerRank).
๐Ÿ“‚ Day 116-120: Review your projects & prepare for discussions.

๐Ÿ‘จโ€๐Ÿ’ป Week 27-28: Apply for Jobs
๐Ÿ“ฉ Day 121-125: Start applying for Entry-Level Data Scientist positions.

๐ŸŽค Week 29-30: Interviews
๐Ÿ“ Day 126-130: Attend Interviews & Practice Whiteboard Problems.

๐Ÿ”„ Week 31-32: Continuous Learning
๐Ÿ“ฐ Day 131-135: Stay updated with the Latest Data Science Trends.

๐Ÿ† Week 33-34: Accepting Offers
๐Ÿ“ Day 136-140: Evaluate job offers & Negotiate Your Salary.

๐Ÿข Week 35-36: Settling In
๐ŸŽฏ Day 141-150: Start your New Data Science Job, adapt & keep learning!

๐ŸŽ‰ Enjoy Learning & Build Your Dream Career in Data Science! ๐Ÿš€๐Ÿ”ฅ
โค7๐Ÿ”ฅ2๐Ÿ˜1
๐——๐—ฎ๐˜๐—ฎ ๐—ฆ๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐˜„๐—ถ๐˜๐—ต ๐—”๐—œ ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ | ๐Ÿญ๐Ÿฌ๐Ÿฌ% ๐—๐—ผ๐—ฏ ๐—”๐˜€๐˜€๐—ถ๐˜€๐˜๐—ฎ๐—ป๐—ฐ๐—ฒ๐Ÿ˜

โœ… Build Python, Machine Learning & AI Skills
โœ… 60+ Hiring Drives Every Month
โœ… 1-on-1 Expert Mentorship
โœ… 500+ Partner Companies
โœ… Highest Salary: โ‚น12.65 LPA

๐—•๐—ผ๐—ผ๐—ธ ๐—ฎ ๐—™๐—ฅ๐—˜๐—˜ ๐—ฆ๐—ฒ๐˜€๐˜€๐—ถ๐—ผ๐—ป :- ๐Ÿ‘‡:-

  https://pdlink.in/4fdWxJB

Hurry Up ๐Ÿƒโ€โ™‚๏ธ! Limited seats are available.
โค2
๐Ÿง  7 Resume Tips for Data Science & ML Roles ๐Ÿ“„โœ…

1๏ธโƒฃ Start with a Strong Summary
โฆ Highlight skills, tools, and domain experience
โฆ Mention years of experience and key achievements

2๏ธโƒฃ Showcase Projects that Matter
โฆ Focus on real-world impact, not just toy datasets
โฆ Mention metrics (e.g., โ€œImproved accuracy by 12%โ€)

3๏ธโƒฃ Tailor for the Role
โฆ Align keywords with the job description
โฆ Use relevant tools and models mentioned in the listing

4๏ธโƒฃ Highlight Tools & Techniques
โฆ Python, SQL, Pandas, Scikit-learn, TensorFlow
โฆ Also list Git, Docker, AWS if used

5๏ธโƒฃ Add Business Context
โฆ Mention how your model helped reduce costs, improve conversion, etc.
โฆ Show you understand the why behind the model

6๏ธโƒฃ Keep It One Page
โฆ Concise and clean layout
โฆ Use bullet points, not long paragraphs

7๏ธโƒฃ Include Public Work
โฆ GitHub, blog posts, Kaggle profile
โฆ Show you build, write, and share

๐Ÿ’ฌ Double tap โค๏ธ for more!
โค7๐Ÿ˜ข1
๐Ÿš€ ๐—ง๐—ผ๐—ฝ ๐— ๐—ถ๐—ฐ๐—ฟ๐—ผ๐˜€๐—ผ๐—ณ๐˜ ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป๐˜€ ๐—ฌ๐—ผ๐˜‚ ๐—–๐—ฎ๐—ป ๐—Ÿ๐—ฒ๐—ฎ๐—ฟ๐—ป ๐—ณ๐—ผ๐—ฟ ๐—™๐—ฅ๐—˜๐—˜! ๐Ÿ’ผ๐Ÿ”ฅ

These free courses can help you build in-demand tech skills for 2026 ๐Ÿ‘‡

โœ… Microsoft Azure Fundamentals โ˜๏ธ
โœ… Power BI Data Analyst ๐Ÿ“Š
โœ… Data Analysis Using Excel ๐Ÿ“ˆ
โœ… Azure AI & Generative AI Courses ๐Ÿค–
โœ… SQL & Data Engineering Learning Paths ๐Ÿ’ป

๐Ÿ’ก Why Learn Microsoft Certifications?
โœจ Industry-Recognized Credentials
โœจ Hands-on Learning
โœจ High Demand Skills
โœจ Better Career Opportunities

๐Ÿ”— ๐—˜๐—ป๐—ฟ๐—ผ๐—น๐—น ๐—™๐—ผ๐—ฟ ๐—™๐—ฅ๐—˜๐—˜๐Ÿ‘‡:

https://pdlink.in/4nLVyVc

๐Ÿ”ฅ Start learning today and future-proof your career with Microsoft-certified skills.
โค1๐Ÿ”ฅ1
Essential SQL Topics for Data Analysts ๐Ÿ‘‡

- Basic Queries: SELECT, FROM, WHERE clauses.
- Sorting and Filtering: ORDER BY, GROUP BY, HAVING.
- Joins: INNER JOIN, LEFT JOIN, RIGHT JOIN.
- Aggregation Functions: COUNT, SUM, AVG, MIN, MAX.
- Subqueries: Embedding queries within queries.
- Data Modification: INSERT, UPDATE, DELETE.
- Indexes: Optimizing query performance.
- Normalization: Ensuring efficient database design.
- Views: Creating virtual tables for simplified queries.
- Understanding Database Relationships: One-to-One, One-to-Many, Many-to-Many.

Window functions are also important for data analysts. They allow for advanced data analysis and manipulation within specified subsets of data. Commonly used window functions include:

- ROW_NUMBER(): Assigns a unique number to each row based on a specified order.
- RANK() and DENSE_RANK(): Rank data based on a specified order, handling ties differently.
- LAG() and LEAD(): Access data from preceding or following rows within a partition.
- SUM(), AVG(), MIN(), MAX(): Aggregations over a defined window of rows.

Here is an amazing resources to learn & practice SQL: https://bit.ly/3FxxKPz

Share with credits: https://t.me/sqlspecialist

Hope it helps :)
โค2
๐—”๐—ฐ๐—ฐ๐—ฒ๐—ป๐˜๐˜‚๐—ฟ๐—ฒ ๐—™๐—ฅ๐—˜๐—˜ ๐—ฉ๐—ถ๐—ฟ๐˜๐˜‚๐—ฎ๐—น ๐—œ๐—ป๐˜๐—ฒ๐—ฟ๐—ป๐˜€๐—ต๐—ถ๐—ฝ ๐—ณ๐—ผ๐—ฟ ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ ๐˜„๐—ถ๐˜๐—ต ๐—™๐—ฟ๐—ฒ๐—ฒ ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ฒ ๐Ÿ“Š

Join the Accenture Virtual Internship Program and learn industry-relevant analytics skills with a free certificate ๐ŸŒ

โœจ Learn from Accenture Industry Experts
โœจ Boost Your Resume & LinkedIn Profile
โœจ Gain Practical Analytics Experience
โœจ Improve Career Opportunities in 2026
โœจ Great for Students & Freshers

๐Ÿ”— ๐—˜๐—ป๐—ฟ๐—ผ๐—น๐—น ๐—™๐—ผ๐—ฟ ๐—™๐—ฅ๐—˜๐—˜๐Ÿ‘‡:

https://pdlink.in/42TuhXg

๐Ÿ”ฅ Start your Data Analytics journey today and gain valuable virtual internship experience from a top global company.
โค2
โœ… Tableau LOD Expressions Level of Detail ๐Ÿ“Š๐Ÿ”ฅ

๐Ÿ‘‰ LOD Level of Detail Expressions are one of the most powerful and frequently asked Tableau interview topics. 
They allow you to perform calculations at a different level of granularity than what is currently shown in the visualization.

๐Ÿ”น 1. What are LOD Expressions? 
LOD Expressions let you control how data is aggregated. 
๐Ÿ‘‰ Normally, Tableau calculates values based on the current view. 
๐Ÿ‘‰ LOD lets you calculate values independently of the visualization.

๐Ÿ”ฅ 2. Why Use LOD Expressions? 
โœ” Calculate metrics at different levels 
โœ” Compare individual values to totals 
โœ” Create advanced KPIs 
โœ” Improve dashboard flexibility 

๐Ÿ”น 3. Types of LOD Expressions โญ 
There are three main types:

โœ… FIXED 
Calculates values at a specific level. 
{ FIXED [Region] : SUM([Sales]) } 
๐Ÿ‘‰ Calculates total sales for each region regardless of what's in the view.

โœ… INCLUDE 
Adds dimensions to the current view. 
{ INCLUDE [Customer Name] : SUM([Sales]) } 
๐Ÿ‘‰ Includes customer-level calculations.

โœ… EXCLUDE 
Removes dimensions from the current view. 
{ EXCLUDE [Product] : SUM([Sales]) } 
๐Ÿ‘‰ Ignores product-level detail.

๐Ÿ”น 4. Example of FIXED LOD 
Suppose you want: 
๐Ÿ‘‰ Total Sales by Region 
Even when viewing sales by product. 
{ FIXED [Region] : SUM([Sales]) } 
This value remains constant for the region.

๐Ÿ”น 5. Real-World Example 
Calculate each customer's contribution to total regional sales: 
SUM([Sales]) / { FIXED [Region] : SUM([Sales]) }

๐Ÿ”น 6. Difference Between Aggregate & LOD 
Aggregate: Depends on current view, Simple calculations, Dynamic with visualization 
LOD: Independent of current view, Advanced calculations, Fixed granularity control 

๐Ÿ”น 7. When to Use LOD? 
โœ” Customer contribution analysis 
โœ” Regional benchmarking 
โœ” Advanced KPIs 
โœ” Performance comparisons 

๐Ÿ”น 8. Common Interview Question โญ 
Q: Which LOD expression ignores the dimensions in the current view? 
โœ… Answer: FIXED 

๐Ÿ”น 9. Why LOD is Important? 
โœ” Advanced Tableau skill 
โœ” Frequently asked in interviews 
โœ” Used in enterprise dashboards 
โœ” Makes complex calculations easier 

๐ŸŽฏ Today's Goal 
โœ” Understand FIXED, INCLUDE, EXCLUDE 
โœ” Learn granularity concepts 
โœ” Build advanced Tableau calculations 

๐Ÿ‘‰ Double Tap โค๏ธ For More
โค2๐Ÿ™2
๐—ฃ๐—ฎ๐˜† ๐—”๐—ณ๐˜๐—ฒ๐—ฟ ๐—ฃ๐—น๐—ฎ๐—ฐ๐—ฒ๐—บ๐—ฒ๐—ป๐˜ - ๐—™๐˜‚๐—น๐—น๐˜€๐˜๐—ฎ๐—ฐ๐—ธ๐——๐—ฒ๐˜ƒ ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—ช๐—ถ๐˜๐—ต ๐—š๐—ฒ๐—ป๐—”๐—œ ๐Ÿ˜

Curriculum designed and taught by alumni from IITs & leading tech companies.

Learn Coding & Get Placed In Top Tech Companies

๐—›๐—ถ๐—ด๐—ต๐—น๐—ถ๐—ด๐—ต๐˜๐˜€:-

๐Ÿ’ผ Avg. Package: โ‚น7.2 LPA | Highest: โ‚น41 LPA

๐‘๐ž๐ ๐ข๐ฌ๐ญ๐ž๐ซ ๐๐จ๐ฐ ๐Ÿ‘‡:-

 https://pdlink.in/42WOE5H

Hurry! Limited seats are available.๐Ÿƒโ€โ™‚๏ธ
โค4
๐Ÿ”ฐ  Important Pandas Methods for Data Science
โค5
๐Ÿณ ๐—™๐—ฅ๐—˜๐—˜ ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€ ๐—ง๐—ผ ๐—˜๐—ป๐—ฟ๐—ผ๐—น๐—น ๐—œ๐—ป ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ๐Ÿ˜ 

โœ… 100% FREE & Beginner-Friendly
โœ… Learn AI, ML, Data Science, Ethical Hacking & More
โœ… Taught by Industry Experts
โœ… Practical & Hands-on Learning

๐Ÿ“ข Start learning today and take your tech career to the next level! ๐Ÿš€

๐‹๐ข๐ง๐ค ๐Ÿ‘‡:- 
 
https://pdlink.in/4bQ6FpS
 
Enroll For FREE & Get Certified ๐ŸŽ“
โค3
๐Ÿ“Š ๐—ง๐—–๐—ฆ ๐—™๐—ฅ๐—˜๐—˜ ๐——๐—ฎ๐˜๐—ฎ ๐—”๐—ป๐—ฎ๐—น๐˜†๐˜๐—ถ๐—ฐ๐˜€ ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€

Here's an amazing opportunity from TCS to learn essential data analytics skills completely FREE and earn a certificate

๐Ÿ”— ๐—˜๐—ป๐—ฟ๐—ผ๐—น๐—น ๐—™๐—ผ๐—ฟ ๐—™๐—ฅ๐—˜๐—˜๐Ÿ‘‡:

https://pdlink.in/4waJYWJ

๐Ÿ”ฅ Data Analytics continues to be one of the most in-demand career paths, and this free course is a great first step toward building job-ready skills.

โณ Don't miss this opportunity to upskill and boost your career!
โค4
๐Ÿ’ป Popular Coding Languages & Their Uses ๐Ÿš€

There are many programming languages, each serving different purposes. Here are some key ones you should know:

๐Ÿ”น 1. Python โ€“ Beginner-friendly, versatile, and widely used in data science, AI, web development, and automation.

๐Ÿ”น 2. JavaScript โ€“ Essential for frontend and backend web development, powering interactive websites and applications.

๐Ÿ”น 3. Java โ€“ Used for enterprise applications, Android development, and large-scale systems due to its stability.

๐Ÿ”น 4. C++ โ€“ High-performance language ideal for game development, operating systems, and embedded systems.

๐Ÿ”น 5. C# โ€“ Commonly used in game development (Unity), Windows applications, and enterprise software.

๐Ÿ”น 6. Swift โ€“ The go-to language for iOS and macOS development, known for its efficiency.

๐Ÿ”น 7. Go (Golang) โ€“ Designed for high-performance applications, cloud computing, and network programming.

๐Ÿ”น 8. Rust โ€“ Focuses on memory safety and performance, making it great for system-level programming.

๐Ÿ”น 9. SQL โ€“ Essential for database management, allowing efficient data retrieval and manipulation.

๐Ÿ”น 10. Kotlin โ€“ Popular for Android app development, offering modern features compared to Java.

๐Ÿ”ฅ React โค๏ธ for more ๐Ÿ˜Š๐Ÿš€
โค7
๐ŸŽ“ ๐—š๐—ผ๐—ผ๐—ด๐—น๐—ฒ ๐—™๐—ฅ๐—˜๐—˜ ๐—–๐—ฒ๐—ฟ๐˜๐—ถ๐—ณ๐—ถ๐—ฐ๐—ฎ๐˜๐—ถ๐—ผ๐—ป ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€ ๐Ÿฎ๐Ÿฌ๐Ÿฎ๐Ÿฒ ๐Ÿš€

Learn job-ready skills from Google and boost your resume?๐ŸŒŸ

โœ”๏ธ Learn from Google Experts
โœ”๏ธ Industry-Recognized Certificates
โœ”๏ธ Beginner-Friendly Learning Paths
โœ”๏ธ Self-Paced Courses
โœ”๏ธ Enhance Resume & LinkedIn Profile
โœ”๏ธ Build Job-Ready Skills

๐Ÿ”— ๐—˜๐—ป๐—ฟ๐—ผ๐—น๐—น ๐—™๐—ผ๐—ฟ ๐—™๐—ฅ๐—˜๐—˜๐Ÿ‘‡:

https://pdlink.in/4vjLGVq

โณ Start Learning Today & Upgrade Your Career!
โค2๐Ÿ‘1
Which LOD expression calculates values at a specific level regardless of the current view?
Anonymous Quiz
24%
A) INCLUDE
20%
B) EXCLUDE
35%
C) FIXED
20%
D) FILTER
โค1
Which LOD expression adds dimensions to the current level of detail?
Anonymous Quiz
10%
A) FIXED
69%
B) INCLUDE
16%
C) EXCLUDE
5%
D) GROUP
โค1
Which LOD expression removes dimensions from the current level of detail?
Anonymous Quiz
7%
A) FIXED
10%
B) INCLUDE
75%
C) EXCLUDE
8%
D) REMOVE
โค1
๐— ๐—ถ๐—ฐ๐—ฟ๐—ผ๐˜€๐—ผ๐—ณ๐˜ ๐Ÿญ๐Ÿฌ๐Ÿฌ+ ๐—™๐—ฅ๐—˜๐—˜ ๐—–๐—ผ๐˜‚๐—ฟ๐˜€๐—ฒ๐˜€ ๐—ณ๐—ผ๐—ฟ ๐—”๐˜‡๐˜‚๐—ฟ๐—ฒ, ๐—”๐—œ, ๐—–๐˜†๐—ฏ๐—ฒ๐—ฟ๐˜€๐—ฒ๐—ฐ๐˜‚๐—ฟ๐—ถ๐˜๐˜† & ๐— ๐—ผ๐—ฟ๐—ฒ ๐Ÿš€

Learn the most in-demand tech skills from Microsoft completely FREE๐ŸŒŸ

Microsoft Learn offers 100+ free courses designed to help students, freshers, and professionals build job-ready skills in today's fastest-growing technology domains.

โœ… 100% Free Learning
โœ… Beginner to Advanced Levels

๐Ÿ”— ๐—˜๐—ป๐—ฟ๐—ผ๐—น๐—น ๐—™๐—ผ๐—ฟ ๐—™๐—ฅ๐—˜๐—˜๐Ÿ‘‡:

https://pdlink.in/4f0GNuH

๐Ÿš€ Learn. Practice. Upskill. Get Career Ready