## Why Predictive Modeling

Predictive Modeling is helpful to determine accurate insight in a classified set of questions and also allows forecasts among the users. To uphold a spirited advantage, it is serious to hold insight into outcomes and future events that confront key assumptions. Analytics professionals often use data from the following sources to feed predictive models:

- Transaction data
- CRM data
- Data related to customer service
- Survey or polling data
- Economic data
- Demographic related data
- Data generated through machines
- Data on geographic representation
- Digital marketing and advertising data
- Data on web traffic

### Types of Predictive Modeling

There are different types of techniques of regression available to make predictions. In the following sections, we will discuss them in detail.

#### 1. Descriptive Analytics:

Related to the data. For example, a Saas company puts up for sale of 3,000 licenses in Quarter2 and 2,000 licenses in Quarter1. Descriptive analytics respond to the query total selling between these two periods.

#### 2. Diagnostic Analytics:

The reason of descriptive analytics lies upon diagnostic analytics. From the above example, diagnostic analytics proceeds a further step with the data. It could also foresee whether the increase in sales is because of the performance of the sale persons or interest increase in a certain society.

#### 3. Predictive Analytics:

Predictive analytics exploit methods such as data mining and machine learning to forecast the future. Here the process involves looking at the past data and determining the future occurrence. Data analysts can construct predictive models on holding needed data. predictive analytics largely differs from data mining because the concluding part spotlight on unearthing hidden relationships between these variables, while the previous relate a model to conclude probable ending. A SaaS company might model data on sales of past marketing expenditures across every area to generate a forecast model for prospect income based on marketing spend.

#### 4. Prescriptive Analytics:

Prescriptive analytics tender a proposal based on a forecasted outcome. relative to historical data can action can be recommended.

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### Modeling Methods:

The most widely used predictive modeling methods are as below,

#### 1. Simple linear regression:

A statistical method to mention the relationship between two variables which are continuous.

#### 2. Multiple linear regression:

A statistical method to mention the relationship between more than two variables which are continuous.

#### 3. Polynomial regression:

A non-linear relationship between residuals versus a predictor will lead to a nonlinear relationship. This can be archived through a polynomial regression model.

`Y = β0 + β1X +β2X2 + … + βhXh + ϵ`

#### 4. Support vector regression:

Support Vector Machine is another regression method, which characterizes the algorithm based on all key features. The Support Vector Regression (SVR) apply similar principles as the SVM for classification, with some minor differences.

#### 5. Decision tree regression:

A tree like a structure is used in these decision tree models to build a classification or regression related algorithms. Here the decision tree is incrementally developed by subsetting the given dataset into smaller chunks.

#### 6. Naive Bayes:

In machine learning, they are simple probabilistic classifiers which are in predicted by applying Bayes theorem alongside independent assumptions.

** i. **Naive Bayes code snippet:

`from sklearn.naive_bayes import GaussianNB`

classifier1 = GaussianNB()

classifier1.fit(X1_train, y1_train)

# Predicting of the Test set results

y1_pred = classifier1.predict(X1_test)

predict production rates and inventory. Also, production failures can be determined using past data.

**ii.** Competitive advantage over competitors, drumming into the customer data you have could present you with information with the reason for the customers to pick the competitors products, determining this data will help to maintain an advantage over the customers.

**iii.** Risk reduction and fraud detection

**iv.** Understanding customer expectations better

**v.** Better marketing campaigns

### Advantages of Predictive modeling:

Production efficiency improvement, It allows companies to effectively Predictive modeling processes through which implies statistics and data to foresee result with data models. These models allow forecasting anything from TV ratings to sports, technological advances, and corporate earnings.

Predictive modeling is another way termed as,

- Predictive analytics
- Predictive analysis
- Machine learning

### Disadvantages of Predictive modeling:

- A practical gap exists with these prediction models while understanding the human behavior
- Decision models indirect power
- Polling prediction failure

### Conclusion:

Though considered to be a mathematical problem predictive modeling always posts the expectation from the users to plan for the technical and organizational barriers that might prevent them from getting the data they need. and on a larger point, this technique will largely be useful in the analytics section of the data world.

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