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📊 Data & Tech Skills

Data Science : Begineer to Advance

This end-to-end program takes you from absolute beginner to confident practitioner across the full data science lifecycl...

946
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📊

Sections

1. Data Science Foundations and Workflow
93 views

Understand the data science landscape, roles, workflows, and tools. Learn problem framing, reproducibility, and ethical principles that guide successful projects from idea to impact.

15 topics (15 versions)
1.1What is Data Science
38
1.2Roles in a Data Team
9
1.3Data Science Lifecycle
4
1.4CRISP DM and OSEMN
4
1.5Problem Framing and Hypotheses
6
1.6Data Types and Formats
2
1.7Structured vs Unstructured Data
7
1.8Reproducibility and Version Control Basics
3
1.9Notebooks vs Scripts
4
1.10Environments and Package Management
3
1.11Data Ethics and Bias Overview
2
1.12Experiment Tracking Concepts
3
1.13Documentation and Reporting Basics
2
1.14Project Scoping and KPIs
4
1.15Essential Tools Overview
2

2. Python Programming Essentials for Data Science
32 views

Gain fluency in Python as the primary language for data work. Write clean, maintainable code and leverage core libraries to build reliable data science workflows.

15 topics (15 versions)
2.1Python Syntax and Data Types
12
2.2Control Flow and Functions
1
2.3Comprehensions and Generators
1
2.4Modules and Packages
1
2.5Virtual Environments
2
2.6Error Handling and Logging
1
2.7Object Oriented Basics
1
2.8Working with Files and Paths
1
2.9Itertools and Functional Tools
2
2.10Type Hints and Docstrings
1
2.11Performance Basics and Profiling
2
2.12Using Jupyter and IPython
2
2.13Testing with pytest
2
2.14Code Style and Linting
2
2.15Packaging and Dependency Management
2

3. Working with Data Sources and SQL
31 views

Acquire, access, and manage data from files, web APIs, and relational databases. Write efficient SQL and design robust data access patterns.

15 topics (15 versions)
3.1CSV JSON and Parquet
9
3.2Reading and Writing Data
2
3.3Web Scraping Basics
2
3.4REST APIs and Requests
2
3.5Authentication and Rate Limits
2
3.6Handling Missing and Corrupt Files
2
3.7SQL Basics Select and Joins
1
3.8Aggregations and Window Functions
1
3.9Subqueries and CTEs
1
3.10Indexes and Query Optimization
2
3.11Database Design Basics
1
3.12Transactions and ACID
1
3.13ORMs and Python DB APIs
2
3.14Data Warehouses and Lakes
1
3.15ETL vs ELT Concepts
2

4. Data Wrangling with NumPy and Pandas
25 views

Transform raw data into analysis-ready datasets using vectorized operations and powerful tabular transformations with NumPy and Pandas.

15 topics (15 versions)
4.1NumPy Arrays and Vectorization
7
4.2Broadcasting and Advanced Indexing
1
4.3Pandas Series and DataFrame
2
4.4Data Selection and Filtering
1
4.5Merging and Joining DataFrames
3
4.6Reshaping Pivot and Melt
4.7GroupBy and Aggregations
1
4.8Time Series in Pandas
1
4.9Text Data in Pandas
1
4.10Categorical and Sparse Data
1
4.11Missing Values Handling
2
4.12Apply Map and Vectorized UDFs
2
4.13Performance Tips and Memory
1
4.14Custom Functions and Pipelines
1
4.15Pandas IO and Chunking
1

5. Data Cleaning and Preprocessing
29 views

Assess data quality and apply systematic cleaning, encoding, and transformation techniques to prepare robust training and analysis datasets.

15 topics (15 versions)
5.1Data Quality Dimensions
8
5.2Detecting Outliers
3
5.3Handling Missing Data Strategies
1
5.4Encoding Categorical Variables
1
5.5Scaling and Normalization
1
5.6Feature Transformation
1
5.7Date and Time Handling
3
5.8Text Normalization Basics
2
5.9Imbalanced Data Techniques
1
5.10Dealing with Duplicates
5.11Data Leakage Prevention
1
5.12Target Leakage Detection
2
5.13Data Splitting Strategies
2
5.14Skewness and Box Cox
2
5.15Data Validation Checks
1

6. Exploratory Data Analysis and Visualization
44 views

Extract insights through statistical exploration and clear visual narratives. Learn to choose appropriate charts and communicate findings effectively.

15 topics (15 versions)
6.1EDA Mindset and Questions
5
6.2Descriptive Statistics
3
6.3Distributions and Density Plots
3
6.4Relationships and Correlations
3
6.5Multivariate Analysis
2
6.6Feature Importance Heuristics
2
6.7Visualization Principles
3
6.8Matplotlib Essentials
5
6.9Seaborn for Statistical Graphics
3
6.10Plotly and Interactive Charts
5
6.11Geospatial Visualization Basics
2
6.12Dashboards Overview
2
6.13Communicating Insights
2
6.14EDA Automation
2
6.15Storytelling with Data
2

7. Probability and Statistics for Data Science
38 views

Build statistical intuition for uncertainty, inference, and experimentation. Apply hypothesis testing and estimation to data-driven decisions.

15 topics (15 versions)
7.1Random Variables and Distributions
9
7.2Sampling and Central Limit Theorem
2
7.3Estimation and Confidence Intervals
2
7.4Hypothesis Testing Basics
2
7.5p Values and Power
2
7.6Bayesian Thinking Basics
3
7.7Priors Likelihood and Posteriors
2
7.8A B Testing Design
2
7.9Nonparametric Methods
2
7.10Correlation and Causation
2
7.11Regression Basics
2
7.12ANOVA and Chi Square
2
7.13Resampling Bootstrap and Permutation
2
7.14Time Dependent Data Considerations
2
7.15Statistical Pitfalls and Biases
2

8. Machine Learning Foundations
49 views

Learn core ML principles, from data splits and metrics to bias variance and optimization. Set up reliable, reproducible training workflows.

15 topics (15 versions)
8.1Supervised vs Unsupervised
11
8.2Bias Variance Tradeoff
2
8.3Underfitting and Overfitting
3
8.4Train Validation Test Splits
3
8.5Cross Validation Strategies
2
8.6Evaluation Metrics Overview
3
8.7Cost Functions and Loss
4
8.8Regularization Concepts
2
8.9Gradient Descent and Optimization
3
8.10Feature Scaling Effects
2
8.11Curse of Dimensionality
3
8.12Data Leakage Revisited
3
8.13Pipelines and Transformers
4
8.14Model Interpretability Basics
2
8.15Reproducible ML Workflows
2

9. Supervised Learning Algorithms
43 views

Implement and compare core supervised models for regression and classification. Understand practical tradeoffs and interpretation.

15 topics (15 versions)
9.1Linear Regression and Ridge
9
9.2Lasso and Elastic Net
3
9.3Logistic Regression
3
9.4k Nearest Neighbors
2
9.5Decision Trees
2
9.6Random Forests
2
9.7Gradient Boosting Machines
2
9.8XGBoost LightGBM CatBoost
2
9.9Support Vector Machines
3
9.10Naive Bayes
3
9.11Calibration and Thresholding
2
9.12Handling Imbalanced Classes
2
9.13Multiclass and Multilabel
3
9.14Stacking and Blending
3
9.15Interpretability for Supervised Models
2

10. Unsupervised Learning and Dimensionality Reduction
40 views

Discover structure in unlabeled data and reduce dimensionality for visualization, compression, and improved learning.

15 topics (15 versions)
10.1Clustering Concepts
7
10.2k Means and k Medoids
2
10.3Hierarchical Clustering
3
10.4DBSCAN and HDBSCAN
2
10.5Gaussian Mixture Models
3
10.6Anomaly Detection Basics
2
10.7PCA and SVD
2
10.8t SNE and UMAP
2
10.9Feature Extraction vs Selection
2
10.10Topic Modeling Basics
2
10.11Association Rules and Market Basket
4
10.12Manifold Learning
3
10.13Autoencoders Overview
2
10.14Evaluating Clusters
2
10.15Visualization of High Dimensional Data
2

11. Model Evaluation, Validation, and Tuning
35 views

Choose appropriate metrics, validate rigorously, and tune models systematically for robust, generalizable performance.

15 topics (15 versions)
11.1Metrics for Regression
5
11.2Metrics for Classification
2
11.3ROC PR and AUC
1
11.4Confusion Matrix Analysis
3
11.5Cross Validation in Practice
2
11.6Hyperparameter Search Grid and Random
2
11.7Bayesian Optimization
2
11.8Early Stopping and Learning Curves
1
11.9Feature Selection Strategies
2
11.10Model Stability and Robustness
3
11.11Data Drift and Concept Drift Basics
1
11.12Error Analysis Techniques
3
11.13Model Fairness Metrics
2
11.14Reproducible Experiments
3
11.15Reporting and Model Cards
3

12. Feature Engineering and ML Pipelines
39 views

Craft informative features and build maintainable pipelines that automate preprocessing and modeling for repeatable results.

15 topics (15 versions)
12.1Numerical Feature Engineering
7
12.2Categorical Encoding Advanced
2
12.3Text Feature Extraction
2
12.4Date and Time Features
2
12.5Interaction and Polynomial Features
2
12.6Target Encoding and Leakage Risks
2
12.7Feature Selection Filters Wrappers Embedded
3
12.8Handling Rare Categories
3
12.9Feature Scaling Strategies
3
12.10Pipelines with scikit learn
2
12.11Custom Transformers
2
12.12ColumnTransformer and FeatureUnion
2
12.13Caching and Parallelization
2
12.14Persisting Models and Pipelines
2
12.15Reusability and Modularity
3

13. Time Series Analysis and Forecasting
35 views

Model temporal data with classical and modern methods. Evaluate forecasts and deploy scalable time series solutions.

15 topics (15 versions)
13.1Time Series Components
7
13.2Stationarity and Differencing
2
13.3Autocorrelation and Partial Autocorrelation
2
13.4AR MA and ARIMA
2
13.5SARIMA and Seasonal Decomposition
3
13.6Exponential Smoothing and ETS
2
13.7Prophet and Additive Models
2
13.8Feature Engineering for Time Series
1
13.9Cross Validation for Time Series
2
13.10Forecast Accuracy Metrics
3
13.11Multivariate and VAR
2
13.12Anomaly Detection in Time Series
2
13.13Hierarchical Forecasting
2
13.14Deep Learning for Time Series
1
13.15Productionizing Forecasts
2

14. Natural Language Processing
41 views

Process and model text data from traditional vectorization to modern transformer based approaches for NLP applications.

15 topics (15 versions)
14.1Text Preprocessing and Tokenization
8
14.2Bag of Words and TF IDF
2
14.3N gram Features and Smoothing
3
14.4Sentiment Analysis Basics
3
14.5Topic Modeling LSA and LDA
2
14.6Word Embeddings Word2Vec and GloVe
2
14.7Sequence Models RNN and LSTM
2
14.8Transformers and Attention
2
14.9Transfer Learning with BERT
3
14.10Named Entity Recognition
3
14.11Text Classification Pipelines
3
14.12Question Answering Overview
2
14.13Summarization Basics
2
14.14Evaluation Metrics for NLP
2
14.15Ethics and Bias in NLP
2

15. Deep Learning, Deployment, and MLOps
45 views

Learn neural network fundamentals and apply practical MLOps to ship, monitor, and maintain production grade AI systems.

15 topics (15 versions)
15.1Neural Network Basics
11
15.2Activation Functions and Initialization
2
15.3Backpropagation and Optimizers
2
15.4Regularization Dropout and BatchNorm
3
15.5Convolutional Neural Networks
3
15.6Recurrent and Sequence Models
2
15.7Frameworks PyTorch and TensorFlow
3
15.8Transfer Learning and Fine Tuning
3
15.9Experiment Tracking with MLflow
1
15.10Model Serving APIs and Batch
2
15.11Containerization with Docker
3
15.12CI CD for ML
3
15.13Monitoring Drift and Performance
2
15.14Data and Model Versioning
2
15.15Orchestration and Pipelines
3
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