Data mining techniques

Data mining techniques

by Costas Pringipas

Multiple Choice

Discriminating between spam and correct email is a

• Clustering

• Segmentatiin

• Classification

• Regression

Multiple Choice

______ are used in retail sales to identify patterns that are frequently purchased together.

• Classification

• Regression

• Association

• Clustering

Multiple Choice

A college professor wishes to reach a certain level of savings before her retirement. This is related to which data mining task?

• Clustering

• Regression

• Association

• Classification

Multiple Choice

A grocery store retailer is trying to decide whether to put bread on sale. This is related to which data mining task?

• Association

• Outlier analysis

• Summarization

• Prediction

Multiple Choice

______ are used in retail sales to identify patterns that are frequently purchased together.

• Classification

• analysis

• Association

• Clustering

Multiple Choice

Cluster is the collection of data objects which are similar to one another within the same group (class or category) and are different from the objects in the other clusters.

• tr

• false

Unsupervised learning,

​ uses machine learning algorithms to analyze and cluster unlabeled datasets.

These algorithms discover hidden patterns or data groupings without the need for human intervention.

​unsupervised learning

​Its ability to discover similarities and differences in information make it the ideal solution for

• cross-selling strategies,

• customer segmentation, and

• image r_________n.

​supervised learning

the machine learning task of learning a function that maps an input to an output based on example input-output pairs.

​supervised learning

​ It infers a function from labeled training data consisting of a set of training examples​

Multiple Choice

• supervised learning

• unsupervised learning

Multiple Choice

what is this?

• supervised learning

• unsupervised learning

Multiple Choice

Clustering is a data mining technique which groups labelled data based on their similarities or differences

• true

• false

Multiple Choice

Cluster analysis is ...................

• Unsupervised Learning

• Supervised learning

• Semi supervised learning

• None of these

Multiple Choice

What kind of learning algorithm for "Facial identities or facial expressions"?

• Recognizing Anomalies

• Prediction

• Generating Patterns

• Recognition Patterns

Multiple Choice

Artificial Intelligence is the process that allows computers to learn and make decisions like humans

• True
• False

Multiple Choice

What would make a robot intelligent?

• It responds to the environment.

• It responds to the environment according to previous experiences.

• It calculates mathematical problems faster than human minds.

• It can jump 1.5 meters higher than humans.

Fill in the Blank

allows us to find hidden relationship between the data points in the dataset.

Multiple Choice

What is the correlation model of this Graph

• Linear

• Quadratic

• Exponential

• Logarithmic

Multiple Choice

Linear regression is a statistical regression method which is used for

• Predictive Analysis

• Real Analysis

• Complex Analysis

• Functional Analysis

Multiple Choice

You can use simple linear regression when you want to know:

How strong the relationship is between two variables (e.g. the relationship between rainfall and soil erosion).

• true

• false

​4 types of analytics

Descriptive, Diagnostic, Predictive, and Prescriptive.

​

​

​descriptive analytics

what happened?

Multiple Choice

From the business perspective, what is the most important characteristic of Big Data?

• Volume

• Veracity

• Velocity

• Variety

• Value

Multiple Choice

Whether data can be trusted is an important issue of big data. What property of big data best describe the issue?

• Volume

• Veracity

• Value

• Variety

• Velocity

Multiple Choice

The technologies for gathering, storing, analyzing, and providing access to data to help make better business decisions refers to ....

• Business Intelligence

• Data Warehousing

• Cloud Computing

• Business Analytics

• Internet of Things

Multiple Choice

methodical exploration of an organization's data through statistical analysis

• Business Process

• Business Outsourcing

• Business Management

• Business Analytics

Multiple Choice

Type of Business Analytics refers to "what happened?"

• Prescriptive

• Diagnostic

• Descriptive

• Predictive

Multiple Choice

Understand reason behind happening some event.

• Diagnostic

• Predictive

• Descriptive

• Prescriptive

Multiple Choice

What invention marked the "Industry 4.0." era.

• Steam Engine

• Electricity

• ICT and Electronics

• AI, Internet of Things, Big Data

• Microcontroler

Multiple Choice

Creating a model which can predict the user's future intention can be considered as an example of?

• Descriptive Analytics

• Predictive Analytics

• Prescriptive Analytics

• Diagnostic Analytics

Multiple Choice

Type of Analytics refer to future outcomes

• Predictive

• Prescriptive

• Diagnostics

• Descriptive

Multiple Choice

Type of analytics tells "what should I do?"

• Diagnostics

• Descriptive

• Predictive

• Prescriptive

Multiple Choice

"What should you do" represents ?

• Descriptive Analysis

• Diagnostic Analysis

• Predictive Analysis

• Prescriptive Analysis

Multiple Choice

Data analytics helps you analyze the data you have.

• False

• True

Multiple Choice

"What happened" represents ?

• Descriptive Analysis

• Diagnostic Analysis

• Predictive Analysis

• Prescriptive Analysis

Multiple Choice

'Customer Segmentation Based on Which Segment would likely to purchase' represents

• Descriptive Analysis

• Diagnostic Analysis

• Predictive Analysis

• Prescriptive Analysis

Multiple Choice

'Making Decisions ' represents

• Descriptive Analysis

• Diagnostic Analysis

• Predictive Analysis

• Prescriptive Analysis

Multiple Choice

'Investigating the Reason for the Low income ' represents

• Descriptive Analysis

• Diagnostic Analysis

• Predictive Analysis

• Prescriptive Analysis

Multiple Choice

Type of Business Analytics refers to "what happened?"

• Prescriptive

• Diagnostic

• Descriptive

• Predictive

Multiple Choice

Understand reason behind happening some event.

• Diagnostic

• Predictive

• Descriptive

• Prescriptive

Multiple Choice

Type of Analytics refer to future outcomes

• Predictive

• Prescriptive

• Diagnostics

• Descriptive

Multiple Choice

Type of analytics tells "what should I do?"

• Diagnostics

• Descriptive

• Predictive

• Prescriptive