### Principal Component Analysis

Feature selection, dimensional reduction for visualization using PCA. Excel Add-In also available

### Neural Network

Build your own intelligent magic box in Excel that can be trained to recognize patterns without programming. It's simply amazing...

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### Decision Tree

Learn step by step how to use and generate a popular classifier that does not require any knowledge or parameter setting.

### Hierarchical Clustering

Step by step example on how to compute hierarchical clustering manually and how to validate the clustering using Cophenetic Correlation Coefficient

### Q Learning by Example

Pictorial introduction to Reinforcement Learning of Agent in unknown environment. Solving Tower of Hanoi.

### Numerical Excel

Various tutorials to solve analytical problems using MS Excel with and without programming.

### K-Means Clustering

Interesting algorithm to partition your data. Resources to classification analysis, clustering analysis, data mining

### Gaussian Mixture Model

Flexible unsupervised learning for density estimation, clustering and likelihood optimization.

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### K-Nearest Neighbor Algorithm

Supervised learning for classification, interpolation and extrapolation in data mining and statistical pattern recognition.

### Break Event Analysis

Interactive way to optimize your pricing strategy and starts make profit

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### Analysis of Algorithm

Compare the efficiency of algorithms, rank the best, good and bad algorithms and measure programmer's productivity that influence your IT cost.

### Analytic Hierarchy Process

Analytic Hierarchy Process (AHP) is a famous method for multi criteria decision making analysis.

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### Market Basket Analysis

Learn to discover association rules from transaction data of a store.

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### Recursive Average & Variance

Efficient methods to compute average and variance using recursive formula for real time measurement data

### Feasibility Study

Explain how to perform what-if scenario and sensitivity analysis. Example on economic feasibility study for public transportation system (bus).

### System Dynamic

Introduction to system thinking terminologies such as rate, level, positive and negative feedback loop, causal and stock flow diagram.

### Similarity Measurement

Basic knowledge on how to measure similarity and dissimilarity of performance index. Useful for clustering, Machine learning and data mining. Many simple examples.

### Monte Carlo Simulation

Beginners guide to one of the largest and most important classes of numerical method for computer simulations

### Mean and Average

An eye opener to create many means or average beyond the traditional arithmetic, geometric and harmonic means. Include fundamentalrelationship between averages.

### Multiagent System

Development of prototype multi agent simulation using only spreadsheet. Simple example of race of agents.

### Prime Factor

Use interactive javascript and MS Excel iteration to compute prime number and prime factors and a lot more

### Solving ODE

Practical approach to solve Ordinary Differential Equation numerically using Euler and Runge-Kutta method

### Kernel Regression

Non-linear curve fitting technique using local kernel only by MS excel without macro

### Linear Regression Model

An introduction to regression model using MS Excel. Learn how to model, find the best-fit model and use graph, functions, matrix and Add Ins to automate the regression.

### Linear Algebra

Understanding vector, matrix, solving linear equations, eigen value, and many more using online interactive programs.

### Data Analysis from Questionnaires

Interactive descriptive statistics and contingency table and chi-square independent test to analyze your data from questionnaire survey

### GIS Tutorial

Introduction to GIS with feature to use Arc GIS (Arc View, Arc Editor or Arc Info). Assumed you know nothing about GIS.

### Palindrome

Learn how to test whether a word or a number is a palindrome. Generate and search palindrome.

### Useful Summation & Tricks

This tutorial is made especially for those of you who forget or confuse with the mathematics symbol Sigma that represent summation.

### Growth Model

Brief introduction to various basic growth model such as arithmetic , geometric, exponential and logistic growth phenomena using interactive program

### Graph Theory

A very gentle introduction to Graph theory in ordinary English using simple diagram of points and arcs.

### Difference Equation

Learn very fascinating subject of discrete dynamical system, its solution, behavior, equilibrium or critical value and stability.

### Ginger Bread Man

Do you remember ginger bread man cookies? Learn about Chaos and having fun to produce Ginger Bread Man Cards

### Adaptive Machine Learning Algorithm

Histogram based learning formula with memory for educational Monte Calo game and simulation. Numerical example for hand calculation and MS Excel is explained.

### Continued Fraction

An introduction to regular continued fraction (finite, infinite and periodic) and its application to convert decimal to fraction, compute Pi and Euler number.

### LAN Connections Switch

How to automate swicth between LAN connections from static IP address to broadband DHCP

### Queuing Theory

Get frustrated because of congestion and queuing problem? Read this tutorial to solve your unnecessary queuing problems.

### Page Rank

Learn how to compute Google Page Rank algorithm using MS Excel iteration and Matlab. Read more

### Learning from Data

Statistical concepts and online programs about central tendency and variation of data.

### Complex Number

Build Fractal Geometry using Complex Number. It gives you the basic arithmetic of Complex Number.

### EM Algorithm

An iterative procedure to estimate the maximum likelihood of mixture density distribution