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Data Scientist Roadmap | |-- 1. Basic Foundations |   |-- a. Mathematics |   |   |-- i. Linear Algebra |   |   |-- ii. Calculus |   |   |-- iii. Probability |   |   -- iv. Statistics |   | |   |-- b. Programming |   |   |-- i. Python |   |   |   |-- 1. Syntax and Basic Concepts |   |   |   |-- 2. Data Structures |   |   |   |-- 3. Control Structures |   |   |   |-- 4. Functions |   |   |   -- 5. Object-Oriented Programming |   |   | |   |   -- ii. R (optional, based on preference) |   | |   |-- c. Data Manipulation |   |   |-- i. Numpy (Python) |   |   |-- ii. Pandas (Python) |   |   -- iii. Dplyr (R) |   | |   -- d. Data Visualization |       |-- i. Matplotlib (Python) |       |-- ii. Seaborn (Python) |       -- iii. ggplot2 (R) | |-- 2. Data Exploration and Preprocessing |   |-- a. Exploratory Data Analysis (EDA) |   |-- b. Feature Engineering |   |-- c. Data Cleaning |   |-- d. Handling Missing Data |   -- e. Data Scaling and Normalization | |-- 3. Machine Learning |   |-- a. Supervised Learning |   |   |-- i. Regression |   |   |   |-- 1. Linear Regression |   |   |   -- 2. Polynomial Regression |   |   | |   |   -- ii. Classification |   |       |-- 1. Logistic Regression |   |       |-- 2. k-Nearest Neighbors |   |       |-- 3. Support Vector Machines |   |       |-- 4. Decision Trees |   |       -- 5. Random Forest |   | |   |-- b. Unsupervised Learning |   |   |-- i. Clustering |   |   |   |-- 1. K-means |   |   |   |-- 2. DBSCAN |   |   |   -- 3. Hierarchical Clustering |   |   | |   |   -- ii. Dimensionality Reduction |   |       |-- 1. Principal Component Analysis (PCA) |   |       |-- 2. t-Distributed Stochastic Neighbor Embedding (t-SNE) |   |       -- 3. Linear Discriminant Analysis (LDA) |   | |   |-- c. Reinforcement Learning |   |-- d. Model Evaluation and Validation |   |   |-- i. Cross-validation |   |   |-- ii. Hyperparameter Tuning |   |   -- iii. Model Selection |   | |   -- e. ML Libraries and Frameworks |       |-- i. Scikit-learn (Python) |       |-- ii. TensorFlow (Python) |       |-- iii. Keras (Python) |       -- iv. PyTorch (Python) | |-- 4. Deep Learning |   |-- a. Neural Networks |   |   |-- i. Perceptron |   |   -- ii. Multi-Layer Perceptron |   | |   |-- b. Convolutional Neural Networks (CNNs) |   |   |-- i. Image Classification |   |   |-- ii. Object Detection |   |   -- iii. Image Segmentation |   | |   |-- c. Recurrent Neural Networks (RNNs) |   |   |-- i. Sequence-to-Sequence Models |   |   |-- ii. Text Classification |   |   -- iii. Sentiment Analysis |   | |   |-- d. Long Short-Term Memory (LSTM) and Gated Recurrent Units (GRU) |   |   |-- i. Time Series Forecasting |   |   -- ii. Language Modeling |   | |   -- e. Generative Adversarial Networks (GANs) |       |-- i. Image Synthesis |       |-- ii. Style Transfer |       -- iii. Data Augmentation | |-- 5. Big Data Technologies |   |-- a. Hadoop |   |   |-- i. HDFS |   |   -- ii. MapReduce |   | |   |-- b. Spark |   |   |-- i. RDDs |   |   |-- ii. DataFrames |   |   -- iii. MLlib |   | |   -- c. NoSQL Databases |       |-- i. MongoDB |       |-- ii. Cassandra |       |-- iii. HBase |       -- iv. Couchbase | |-- 6. Data Visualization and Reporting |   |-- a. Dashboarding Tools |   |   |-- i. Tableau |   |   |-- ii. Power BI |   |   |-- iii. Dash (Python) |   |   -- iv. Shiny (R) |   | |   |-- b. Storytelling with Data |   -- c. Effective Communication | |-- 7. Domain Knowledge and Soft Skills |   |-- a. Industry-specific Knowledge |   |-- b. Problem-solving |   |-- c. Communication Skills |   |-- d. Time Management |   -- e. Teamwork | -- 8. Staying Updated and Continuous Learning     |-- a. Online Courses     |-- b. Books and Research Papers     |-- c. Blogs and Podcasts     |-- d. Conferences and Workshops     `-- e. Networking and Community Engagement Best Data Science & Machine Learning Resources: https://topmate.io/coding/914624 All the best 👍👍

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Data Science Resources 👆

How much Statistics must I know to become a Data Scientist? This is one of the most common questions Here are the must-know Statistics concepts every Data Scientist should know: 𝗣𝗿𝗼𝗯𝗮𝗯𝗶𝗹𝗶𝘁𝘆 ↗ Bayes' Theorem & conditional probability ↗ Permutations & combinations ↗ Card & die roll problem-solving 𝗗𝗲𝘀𝗰𝗿𝗶𝗽𝘁𝗶𝘃𝗲 𝘀𝘁𝗮𝘁𝗶𝘀𝘁𝗶𝗰𝘀 & 𝗱𝗶𝘀𝘁𝗿𝗶𝗯𝘂𝘁𝗶𝗼𝗻𝘀 ↗ Mean, median, mode ↗ Standard deviation and variance ↗  Bernoulli's, Binomial, Normal, Uniform, Exponential distributions 𝗜𝗻𝗳𝗲𝗿𝗲𝗻𝘁𝗶𝗮𝗹 𝘀𝘁𝗮𝘁𝗶𝘀𝘁𝗶𝗰𝘀 ↗ A/B experimentation ↗ T-test, Z-test, Chi-squared tests ↗ Type 1 & 2 errors ↗ Sampling techniques & biases ↗ Confidence intervals & p-values ↗ Central Limit Theorem ↗ Causal inference techniques 𝗠𝗮𝗰𝗵𝗶𝗻𝗲 𝗹𝗲𝗮𝗿𝗻𝗶𝗻𝗴 ↗ Logistic & Linear regression ↗ Decision trees & random forests ↗ Clustering models ↗ Feature engineering ↗ Feature selection methods ↗ Model testing & validation ↗ Time series analysis Join our WhatsApp channel for more Statistics Resources 👇👇 https://whatsapp.com/channel/0029Vat3Dc4KAwEcfFbNnZ3O Like if you need similar content 😄👍

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Q. Explain the data preprocessing steps in data analysis. Ans. Data preprocessing transforms the data into a format that is more easily and effectively processed in data mining, machine learning and other data science tasks. 1. Data profiling. 2. Data cleansing. 3. Data reduction. 4. Data transformation. 5. Data enrichment. 6. Data validation. Q. What Are the Three Stages of Building a Model in Machine Learning? Ans. The three stages of building a machine learning model are: Model Building: Choosing a suitable algorithm for the model and train it according to the requirement Model Testing: Checking the accuracy of the model through the test data Applying the Model: Making the required changes after testing and use the final model for real-time projects Q. What are the subsets of SQL? Ans. The following are the four significant subsets of the SQL: Data definition language (DDL): It defines the data structure that consists of commands like CREATE, ALTER, DROP, etc. Data manipulation language (DML): It is used to manipulate existing data in the database. The commands in this category are SELECT, UPDATE, INSERT, etc. Data control language (DCL): It controls access to the data stored in the database. The commands in this category include GRANT and REVOKE. Transaction Control Language (TCL): It is used to deal with the transaction operations in the database. The commands in this category are COMMIT, ROLLBACK, SET TRANSACTION, SAVEPOINT, etc. Q. What is a Parameter in Tableau? Give an Example. Ans. A parameter is a dynamic value that a customer could select, and you can use it to replace constant values in calculations, filters, and reference lines. For example, when creating a filter to show the top 10 products based on total profit instead of the fixed value, you can update the filter to show the top 10, 20, or 30 products using a parameter.

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Steps to become a successful data scientist