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Course offered by Venkat

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  1. Introduction to Datascience/Analytics
  • Why does companies need Datascientist/Analyst?
  • Data Analytics: OLAP vs Data Mining
  • What is Datascience? Why Datascience?
  • Data driven product engineering
  • How to become a Datascientist? and Skill-set of Datascientist?
  • Career Opportunities & Hiring companies.

 

  1. Business problems with Datascience
  • Predictive Analytics Problems: Classification, Regression, Recommenders. (Supervised techniques)
  • Descriptive Analytics Problems: Frequent Pattern Mining, Clustering, Outlier Detection. (Un Supervised techniques)
  • Prescriptive Analytics problems: Predictive and Descriptive Problems.
  • Types of Data:
  • Structured data
  • Unstructured data
  • Semi structured data
  • Time Series data
  • Business Verticals: Retail, Banking, Financial, Auto mobile, Social, Web, Medical, Scientific, Logistics, Real Estate etc.

 

  1. Required Tools/technologies for Data Science
  • Datascience Life Cycle for Analysis
  • Required technologies for each phase of Data Science life cycle.
  • Single Machine Analytic Platforms: R, Python, SAS, etc...
  • Distributed Analytical Platforms: Hadoop, Spark, H20

 

  1. Mastering in Python Language
  • Python introduction and Installation
  • Python basic topics
  • Variables
  • Decision making
  • Loops
  • Functions, etc.
  • Python advance topic
  • Classes and OOPs Concepts
  • Modules & packages
  • File Handling
  • Database handling, etc.
  • Python advanced features
  • Required Packages for Datascience in Python

 

Statistics and Mathematics for Datascientist/Analyst.

 

  1. Statistics
  • Descriptive stats for single variable
  • Mean, Median, Mode, Quantiles, Percentiles
  • Standard Deviation, Variance
  • MAD, IQR
  • Descriptive stats for two variables
  • Covariance
  • Correlation
  • Chi-squared Analysis
  • Hypothesis Testing
  • Inferential Statistics

 

  1. Linear Algebra.
  • Ideas that need Linear Algebra
  • Vector Algebra
  • Ideas that map to vectors
  • Understanding vector operations
  • Matrix Algebra
  • Ideas that map to matrices
  • Understanding matrix operations
  • Understanding eigen-values and eigen-vectors
  • Concepts of basis
  • Understanding factorization & Types
  • Spectral factorization
  • Eigen factorization
  • SVD factorization
  1. Probability
  • Basic Probability
  • Conditional Probability
  • Bayes Rule/Reasoning
  • Mapping Random process to Random variable
  • Properties of Random variables
  • Probability Expectation
  • Entropy and cross-entropy
  • Estimating probability of Random variable
  • Understanding standard random processes
  • Understanding on Probability Distributions

 

  1. Calculus for data scientist
  • Rate of change
  • Concept of limit
  • Concept of derivative
  • Partial derivatives & gradient
  • Significance of gradient
  • Concept of integration, etc.

 

  1. Data Visualizations
  • Tabular form
  • Using statistical methods – mean, medium, mode, range, frequency, multi-dimensional tables, etc.
  • Graphical form
  • Bar graphs
  • Histograms graphs
  • Pie graphs
  • Area graphs
  • Density graphs
  • Scatter graphs
  • Line graphs
  • Whisker graphs
  • Correlation graphs
  • Facet plots, etc.

 

  1. Overview of Machine Learning Algorithms
  • What is Machine Learning?
  • ML – Software Development Life Cycle
  • ML-SDLC Phases
  • Data Collection
  • Data Preparation
  • Feature Engineering
  • Model Building,
  • Model Evaluation
  • Model Deployment
  • Model Maintenance
  • Type of Machine Learning Algorithms
  • Supervised
  • Unsupervised
  • Semi-supervised
  • Reinforcement Algorithms

 

  1. Data Collection Techniques
  • Collecting data from Excel/csv/txt files
  • Collecting data from databases
  • Collecting data from services
  • Collecting data via scraping (from Web)

 

  1. Data Preparation Techniques
  • Structured Data Preparation
  • Handling Missing Data
  • Data Type Conversion
  • Category to Numeric Conversion
  • Numeric to Category Conversion
  • Data Normalization:0-1, Z-Score
  • Handling Skew Data: Box-Cox Idea
  • Text Data Preparation/preprocessing

Noise removal (Stop word removal, URLs, punctuations, etc.)

Lexicon Normalization (Stemming & Lemmatization)

Object Standardization (Convert acronyms to dictionary words, grammar check, spell check etc.)

 

  1. EDA (Numerical + Graphical) and Feature Engineering
  • Exploring Individual Features
  • Exploring Bi-Feature Relationships
  • Exploring Multi-Feature Relationships
  • Create new Features.
  • Feature/Dimension Reduction: PCA
  • Intuition behind PCA
  • Covariance & Correlation
  • Relating PCA to Covariance/Correlation
  • Intuition to math
  • Applications of PCA: Dimensionality Reduction, Image Compression

 

  1. Model Building (ML Algorithm Building)
  • Mathematical understanding for each model
  • Limitations for each model
  • Tuning for each model
  • Model scope for type of problem: Classification, Regression Recommenders and Association.
  • Pros and Cons of each model

Supervised learning Models

  • Decision trees
  • Probability learning (Naive Bayes)
  • KNN Learning
  • Linear regression
  • Non-Linear regression
  • Logistic regression
  • Support Vector Machines(SVM)
  • Ensemble Models
  • Bagging
  • Bagged trees
  • Random Forest
  • Extreme tress
  • Boosting
  • Ada boosting
  • Gradient Boosting
  • Extreme Gradient Boosting
  • Voting (by Stacking aggregation)
  • Soft voting
  • Hard voting
  • Stacking
  • Neural Network Model
  • Apriori Model

 

Unsupervised Learning

  • Clustering Models
  • K-Mean Model
  • K-Medoid Model
  • K-Centers Model
  • Hierarchical Model
  • Dimension reduction: Principal component analysis (PCA)
  • Association Models.

Time Series Models

  • Holt-Linear
  • Holt-Winters (Extension for Holts Linear for Trend and Seasonality)
  • ARIMA Model
  • SARIMAX

 

 

 

  1. Model Evaluations techniques
  • Repeated holdouts (R.H)
  • K-fold Cross-validation
  • Bootstrap
  • Metrix based evaluation.

 

  1. Model Implementation

 

  1. Distributed/BIGDATA Analytics overview
  • Big data Analytics Overview
  • Platforms for Distributed Analytics: Hadoop, Spark, H20
  • Hoop and Spark Overview & Comparison

 

About the Trainer

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Venkat

Bachelor of Computer Science (B.Sc. (Computer Science)) from Osmania University in 2001, Bachelor of Education (B.Ed.) from Osmania University in 2002 and Master of Computer Applications (M.C.A.) from Osmania in 2005

18 Years of Experience

Currently working in one of the MNC and having rich experience in the below technologies. Currently working as AI solution Architect also, have Development and Teaching experience with a Bachelor's teaching degree.

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