Data Science (DS) | Cognerito

Data Science Roadmap

Introduction

Data science is an interdisciplinary field that combines principles and techniques from statistics, mathematics, computer science, and domain-specific knowledge to extract insights and knowledge from structured and unstructured data.

The core components of data science include:

Data Acquisition and Preparation: Collecting, cleaning, and organizing data from various sources, dealing with missing values, outliers, and inconsistencies.
Data Exploration and Visualization: Analyzing data using statistical methods and visualizing patterns, trends, and relationships through graphs, charts, and other visual representations.
Data Modeling: Applying machine learning algorithms, statistical models, and other computational techniques to discover patterns, make predictions, and gain insights from data.
Model Evaluation and Deployment: Assessing the performance and accuracy of models, interpreting results, and deploying models into production systems or decision-making processes.
Communication and Storytelling: Presenting findings and insights from data analysis in a clear and compelling manner to stakeholders, decision-makers, or audiences.

Data scientists work with large and complex datasets from diverse sources, such as databases, sensors, web logs, social media, and more. They use programming languages like Python, R, SQL, and tools like Hadoop, Spark, and Tableau to process, analyze, and visualize data.

The goal of data science is to extract actionable insights and knowledge from data that can inform decision-making, drive innovation, optimize processes, and solve real-world problems across various domains, including business, finance, healthcare, social sciences, and many others.

Data Science Learning Path

This roadmap covers the essential topics for learning data science, starting with an introduction to the field and Python programming. It then delves into statistics, data wrangling, machine learning, deep learning, big data, and data visualization. The roadmap also includes sections on practical applications, ethics, and emerging trends in data science.

Introduction to Data Science
Python Programming for Data Science
Statistics and Probability
Data Wrangling and Preprocessing
Machine Learning
Deep Learning
Big Data and Distributed Computing
Data Visualization and Communication
Data Science Use Cases and Applications
Future Trends and Emerging Technologies
Resources and Further Learning

Introduction to Data Science

Learn what data science is, the role of a data scientist, applications of data science, and the data science lifecycle in this beginner-friendly introduction.

What is Data Science?
The Role of a Data Scientist
Applications of Data Science
The Data Science Lifecycle

Python Programming for Data Science

Master Python programming for data science, including data structures, libraries like NumPy and Pandas, data manipulation, analysis, and visualization.

Introduction to Python
Python Data Structures
Python Libraries (NumPy, Pandas, Matplotlib)
Python for Data Manipulation and Analysis
Python for Data Visualization

Statistics and Probability

Gain a solid foundation in statistics and probability - descriptive statistics, probability theory, distributions, hypothesis testing, and regression analysis.

Descriptive Statistics
Probability Theory
Probability Distributions
Hypothesis Testing
Correlation and Regression Analysis

Data Wrangling and Preprocessing

Techniques for cleaning, transforming, engineering features, reducing dimensionality to prepare data for machine learning models.

Data Cleaning and Handling Missing Values
Data Transformation and Normalization
Feature Engineering
Dimensionality Reduction Techniques

Machine Learning

Explore supervised and unsupervised machine learning algorithms like regression, classification, clustering, dimensionality reduction, and model evaluation.

Introduction to Machine Learning
Supervised Learning
1. Linear Regression
2. Logistic Regression
3. Decision Trees
4. Support Vector Machines
5. Ensemble Methods
Unsupervised Learning
1. Clustering Algorithms (K-Means, Hierarchical)
2. Dimensionality Reduction (PCA, t-SNE)
3. Association Rule Mining
Model Evaluation and Validation

Deep Learning

Dive into neural networks - feedforward, convolutional (CNNs), recurrent (RNNs) - and deep learning libraries like TensorFlow and Keras.

Introduction to Neural Networks
Feedforward Neural Networks
Convolutional Neural Networks (CNNs)
Recurrent Neural Networks (RNNs)
Deep Learning Libraries (TensorFlow, Keras)

Big Data and Distributed Computing

Overview of big data, Hadoop ecosystem, NoSQL databases, data streaming for handling and processing large datasets.

Introduction to Big Data
Hadoop Ecosystem (HDFS, MapReduce, Spark)
NoSQL Databases
Data Streaming and Real-time Processing

Data Visualization and Communication

Best practices for visualizing data, advanced techniques, storytelling skills to effectively communicate insights from data.

Principles of Data Visualization
Advanced Data Visualization Techniques
Data Storytelling and Presentation Skills

Data Science Use Cases and Applications

Explore data science use cases across industries like finance, healthcare, logistics, manufacturing, retail, and telecommunication.

Future Trends and Emerging Technologies

Stay ahead with automated machine learning (AutoML), explainable AI, federated learning, quantum computing for data science.

Automated Machine Learning (AutoML)
Explainable AI (XAI)
Federated Learning and Privacy-Preserving AI
Quantum Computing and Data Science

Resources and Further Learning

Find valuable resources for learning data science - online courses, books, research papers, communities, conferences, tools, and other relevant artifacts.

Online Courses and Tutorials
Books and Research Papers
Online Communities and Forums
DS Conferences and Events
DS Development Tools and Frameworks
DS Ethics and Policy Resources

Conclusion

We hope you find our Data Science (DS) learning path useful.

Discover everything you need to know about building for the emerging web by following these structured learning paths at your own pace.