Data Science & Machine Learning
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
Ko'proq ko'rsatish๐ Telegram kanali Data Science & Machine Learning analitikasi
Data Science & Machine Learning (@datasciencefun) Ingliz til segmentidagi kanali faol ishtirokchi. Hozirda hamjamiyat 75 933 obunachidan iborat bo'lib, Taสผlim toifasida 2 103-o'rinni va Hindiston mintaqasida 4 204-o'rinni egallagan.
๐ Auditoriya koโrsatkichlari va dinamika
ะฝะตะฒัะดะพะผะพ sanasidan buyon loyiha tez oโsib, 75 933 obunachiga ega boโldi.
23 Iyun, 2026 dagi oxirgi maโlumotlarga koโra kanal barqaror faollikka ega. Oxirgi 30 kunda obunachilar soni 731 ga, soโnggi 24 soatda esa 33 ga oโzgardi va umumiy qamrov yuqori darajada qolmoqda.
- Tasdiqlash holati: Tasdiqlanmagan
- Jalb etish (ER): Auditoriya oโrtacha 2.95% darajada jalb etiladi. Nashrdan keyingi dastlabki 24 soatda kontent odatda umumiy obunachilar sonining 0.86% ini tashkil etuvchi reaksiyalarni toโplaydi.
- Post qamrovi: Har bir post oโrtacha 2 239 marta koโriladi; birinchi sutkada odatda 650 ta koโrish yigโiladi.
- Reaksiyalar va oโzaro taโsir: Auditoriya faol: har bir postga oโrtacha 3 ta reaksiya keladi.
- Tematik yoโnalishlar: Kontent learning, accuracy, distribution, panda, dataset kabi asosiy mavzularga jamlangan.
๐ Tavsif va kontent siyosati
Muallif resursni shaxsiy fikrni ifoda etish maydoni sifatida taโriflaydi:
โJoin this channel to learn data science, artificial intelligence and machine learning with funny quizzes, interesting projects and amazing resources for free
For collaborations: @love_dataโ
Yuqori yangilanish chastotasi (oxirgi maโlumot 24 Iyun, 2026 da olingan) sababli kanal doimo dolzarb va katta qamrovli boโlib qoladi. Analitika auditoriya kontent bilan faol hamkorlik qilishini, uni Taสผlim toifasidagi muhim taโsir nuqtasiga aylantirishini koโrsatadi.
Ma'lumot yuklanmoqda...
| Sana | Obunachilarni jalb qilish | Esdaliklar | Kanallar | |
| 25 Iyun | +14 | |||
| 24 Iyun | +74 | |||
| 23 Iyun | +34 | |||
| 22 Iyun | +4 | |||
| 21 Iyun | +15 | |||
| 20 Iyun | +7 | |||
| 19 Iyun | +15 | |||
| 18 Iyun | +6 | |||
| 17 Iyun | +8 | |||
| 16 Iyun | +39 | |||
| 15 Iyun | +14 | |||
| 14 Iyun | +42 | |||
| 13 Iyun | +41 | |||
| 12 Iyun | +31 | |||
| 11 Iyun | +29 | |||
| 10 Iyun | +33 | |||
| 09 Iyun | +42 | |||
| 08 Iyun | +28 | |||
| 07 Iyun | +23 | |||
| 06 Iyun | +27 | |||
| 05 Iyun | +36 | |||
| 04 Iyun | +38 | |||
| 03 Iyun | +46 | |||
| 02 Iyun | +22 | |||
| 01 Iyun | +24 |
| 2 | Which LOD expression removes dimensions from the current level of detail? | 2 |
| 3 | Which LOD expression adds dimensions to the current level of detail? | 1 |
| 4 | Which LOD expression calculates values at a specific level regardless of the current view? | 2 |
| 5 | What does LOD stand for in Tableau? | 1 |
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| 7 | ๐ป Popular Coding Languages & Their Uses ๐
There are many programming languages, each serving different purposes. Here are some key ones you should know:
๐น 1. Python โ Beginner-friendly, versatile, and widely used in data science, AI, web development, and automation.
๐น 2. JavaScript โ Essential for frontend and backend web development, powering interactive websites and applications.
๐น 3. Java โ Used for enterprise applications, Android development, and large-scale systems due to its stability.
๐น 4. C++ โ High-performance language ideal for game development, operating systems, and embedded systems.
๐น 5. C# โ Commonly used in game development (Unity), Windows applications, and enterprise software.
๐น 6. Swift โ The go-to language for iOS and macOS development, known for its efficiency.
๐น 7. Go (Golang) โ Designed for high-performance applications, cloud computing, and network programming.
๐น 8. Rust โ Focuses on memory safety and performance, making it great for system-level programming.
๐น 9. SQL โ Essential for database management, allowing efficient data retrieval and manipulation.
๐น 10. Kotlin โ Popular for Android app development, offering modern features compared to Java.
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| 10 | ๐ฐย Important Pandas Methods for Data Science | 1 751 |
| 11 | ๐ฐ Important Pandas Methods for Data Science
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| 13 | โ
Tableau LOD Expressions Level of Detail ๐๐ฅ
๐ LOD Level of Detail Expressions are one of the most powerful and frequently asked Tableau interview topics.ย
They allow you to perform calculations at a different level of granularity than what is currently shown in the visualization.
๐น 1. What are LOD Expressions?ย
LOD Expressions let you control how data is aggregated.ย
๐ Normally, Tableau calculates values based on the current view.ย
๐ LOD lets you calculate values independently of the visualization.
๐ฅ 2. Why Use LOD Expressions?ย
โ Calculate metrics at different levelsย
โ Compare individual values to totalsย
โ Create advanced KPIsย
โ Improve dashboard flexibilityย
๐น 3. Types of LOD Expressions โญย
There are three main types:
โ
FIXEDย
Calculates values at a specific level.ย
{ FIXED [Region] : SUM([Sales]) }ย
๐ Calculates total sales for each region regardless of what's in the view.
โ
INCLUDEย
Adds dimensions to the current view.ย
{ INCLUDE [Customer Name] : SUM([Sales]) }ย
๐ Includes customer-level calculations.
โ
EXCLUDEย
Removes dimensions from the current view.ย
{ EXCLUDE [Product] : SUM([Sales]) }ย
๐ Ignores product-level detail.
๐น 4. Example of FIXED LODย
Suppose you want:ย
๐ Total Sales by Regionย
Even when viewing sales by product.ย
{ FIXED [Region] : SUM([Sales]) }ย
This value remains constant for the region.
๐น 5. Real-World Exampleย
Calculate each customer's contribution to total regional sales:ย
SUM([Sales]) / { FIXED [Region] : SUM([Sales]) }
๐น 6. Difference Between Aggregate & LODย
Aggregate: Depends on current view, Simple calculations, Dynamic with visualizationย
LOD: Independent of current view, Advanced calculations, Fixed granularity controlย
๐น 7. When to Use LOD?ย
โ Customer contribution analysisย
โ Regional benchmarkingย
โ Advanced KPIsย
โ Performance comparisonsย
๐น 8. Common Interview Question โญย
Q: Which LOD expression ignores the dimensions in the current view?ย
โ
Answer: FIXEDย
๐น 9. Why LOD is Important?ย
โ Advanced Tableau skillย
โ Frequently asked in interviewsย
โ Used in enterprise dashboardsย
โ Makes complex calculations easierย
๐ฏ Today's Goalย
โ Understand FIXED, INCLUDE, EXCLUDEย
โ Learn granularity conceptsย
โ Build advanced Tableau calculationsย
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| 14 | ๐๐ฐ๐ฐ๐ฒ๐ป๐๐๐ฟ๐ฒ ๐๐ฅ๐๐ ๐ฉ๐ถ๐ฟ๐๐๐ฎ๐น ๐๐ป๐๐ฒ๐ฟ๐ป๐๐ต๐ถ๐ฝ ๐ณ๐ผ๐ฟ ๐๐ฎ๐๐ฎ ๐๐ป๐ฎ๐น๐๐๐ถ๐ฐ๐ ๐๐ถ๐๐ต ๐๐ฟ๐ฒ๐ฒ ๐๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ฒ ๐
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| 15 | Essential SQL Topics for Data Analysts ๐
- 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.
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| 17 | ๐ง 7 Resume Tips for Data Science & ML Roles ๐โ
1๏ธโฃ Start with a Strong Summary
โฆ Highlight skills, tools, and domain experience
โฆ Mention years of experience and key achievements
2๏ธโฃ Showcase Projects that Matter
โฆ Focus on real-world impact, not just toy datasets
โฆ Mention metrics (e.g., โImproved accuracy by 12%โ)
3๏ธโฃ Tailor for the Role
โฆ Align keywords with the job description
โฆ Use relevant tools and models mentioned in the listing
4๏ธโฃ Highlight Tools & Techniques
โฆ Python, SQL, Pandas, Scikit-learn, TensorFlow
โฆ Also list Git, Docker, AWS if used
5๏ธโฃ Add Business Context
โฆ Mention how your model helped reduce costs, improve conversion, etc.
โฆ Show you understand the why behind the model
6๏ธโฃ Keep It One Page
โฆ Concise and clean layout
โฆ Use bullet points, not long paragraphs
7๏ธโฃ Include Public Work
โฆ GitHub, blog posts, Kaggle profile
โฆ Show you build, write, and share
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| 19 | ๐ Complete Roadmap to Become a Data Scientist in 5 Months
๐
Week 1-2: Fundamentals
โ
Day 1-3: Introduction to Data Science, its applications, and roles.
โ
Day 4-7: Brush up on Python programming ๐.
โ
Day 8-10: Learn basic statistics ๐ and probability ๐ฒ.
๐ Week 3-4: Data Manipulation & Visualization
๐ Day 11-15: Master Pandas for data manipulation.
๐ Day 16-20: Learn Matplotlib & Seaborn for data visualization.
๐ค Week 5-6: Machine Learning Foundations
๐ฌ Day 21-25: Introduction to scikit-learn.
๐ Day 26-30: Learn Linear & Logistic Regression.
๐ Week 7-8: Advanced Machine Learning
๐ณ Day 31-35: Explore Decision Trees & Random Forests.
๐ Day 36-40: Learn Clustering (K-Means, DBSCAN) & Dimensionality Reduction.
๐ง Week 9-10: Deep Learning
๐ค Day 41-45: Basics of Neural Networks with TensorFlow/Keras.
๐ธ Day 46-50: Learn CNNs & RNNs for image & text data.
๐ Week 11-12: Data Engineering
๐ Day 51-55: Learn SQL & Databases.
๐งน Day 56-60: Data Preprocessing & Cleaning.
๐ Week 13-14: Model Evaluation & Optimization
๐ Day 61-65: Learn Cross-validation & Hyperparameter Tuning.
๐ Day 66-70: Understand Evaluation Metrics (Accuracy, Precision, Recall, F1-score).
๐ Week 15-16: Big Data & Tools
๐ Day 71-75: Introduction to Big Data Technologies (Hadoop, Spark).
โ๏ธ Day 76-80: Learn Cloud Computing (AWS, GCP, Azure).
๐ Week 17-18: Deployment & Production
๐ Day 81-85: Deploy models using Flask or FastAPI.
๐ฆ Day 86-90: Learn Docker & Cloud Deployment (AWS, Heroku).
๐ฏ Week 19-20: Specialization
๐ Day 91-95: Choose NLP or Computer Vision, based on your interest.
๐ Week 21-22: Projects & Portfolio
๐ Day 96-100: Work on Personal Data Science Projects.
๐ฌ Week 23-24: Soft Skills & Networking
๐ค Day 101-105: Improve Communication & Presentation Skills.
๐ Day 106-110: Attend Online Meetups & Forums.
๐ฏ Week 25-26: Interview Preparation
๐ป Day 111-115: Practice Coding Interviews (LeetCode, HackerRank).
๐ Day 116-120: Review your projects & prepare for discussions.
๐จโ๐ป Week 27-28: Apply for Jobs
๐ฉ Day 121-125: Start applying for Entry-Level Data Scientist positions.
๐ค Week 29-30: Interviews
๐ Day 126-130: Attend Interviews & Practice Whiteboard Problems.
๐ Week 31-32: Continuous Learning
๐ฐ Day 131-135: Stay updated with the Latest Data Science Trends.
๐ Week 33-34: Accepting Offers
๐ Day 136-140: Evaluate job offers & Negotiate Your Salary.
๐ข Week 35-36: Settling In
๐ฏ Day 141-150: Start your New Data Science Job, adapt & keep learning!
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| 20 | ๐ ๐๐ถ๐๐ฐ๐ผ ๐๐ฅ๐๐ ๐๐ฎ๐๐ฎ ๐๐ป๐ฎ๐น๐๐๐ถ๐ฐ๐ ๐๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป | ๐๐ป๐ฟ๐ผ๐น๐น ๐ก๐ผ๐! ๐
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Endi mavjud! Telegram Tadqiqoti 2025 โ yilning asosiy insaytlari 
