## Which broad area of data mining applications partitions a collection of objects into natural groupings with similar feature?

Which broad area of data mining applications partitions a collection of objects into natural groupings with similar features? A) **association rule mining**.

## When a problem has many attributes that impact the classification of different patterns decision trees may be a useful approach?

When a problem has many attributes that impact the classification of different patterns, decision trees may be a useful approach. **Market basket analysis is a useful and entertaining way to explain data mining to a technologically less savvy audience, but it has little business significance.**

## What is a major characteristic of data mining?

The key properties of data mining are: **Automatic discovery of patterns**. Prediction of likely outcomes. Creation of actionable information.

## What challenge did Dell face that led to their analytics journey?

What was the challenge Dell was facing that led to their analytics journey? Dell noticed that **customers were spending a significant amount of time evaluating products before they contacted sales**.

## What is cluster in data mining?

Advertisements. Cluster is **a group of objects that belongs to the same class**. In other words, similar objects are grouped in one cluster and dissimilar objects are grouped in another cluster.

## What is cluster analysis in data mining?

Cluster Analysis in Data Mining means that **to find out the group of objects which are similar to each other in the group but are different from the object in other groups**.

## What is clustering in data mining?

Clustering in Data Mining. Clustering is **an unsupervised Machine Learning-based Algorithm that comprises a group of data points into clusters so that the objects belong to the same group**. Clustering helps to splits data into several subsets.

## What type of approach is used by decision tree algorithm?

Decision tree is one of the **predictive modelling** approaches used in statistics , data mining and machine learning . Decision trees are constructed via an algorithmic approach that identifies ways to split a data set based on different conditions.

## What is data mining system?

Data mining systems **aim to discover patterns and extract useful information from facts recorded in databases**. A widely adopted approach to this objective is to apply various ML algorithms to compute descriptive models of the available data.

## What solution did Dell develop and implement what were the results?

What solution did Dell develop and implement? What were the results? In the Dell case study, **engineers working closely with marketing, used lean software development strategies and numerous technologies to create a highly scalable, singular data mart**.

## What do you think are the promises and major challenges for data miners in contributing to medical and biological research endeavors?

What do you think are the promises and major challenges for data miners in contributing to medical and biological research endeavors? –Data mining shows tremendous promise for **helping to understand cancer, leading to better treatment and saved lives.**

## What is meant by clustering?

Clustering is the task of dividing the population or data points into a number of groups such that data points in the same groups are more similar to other data points in the same group than those in other groups. In simple words, the aim is to segregate groups with similar traits and assign them into clusters.

## What is clustering used for?

Clustering is used **to identify groups of similar objects in datasets with two or more variable quantities**.

## What is partition clustering?

Partitional clustering **decomposes a data set into a set of disjoint clusters**. Given a data set of N points, a partitioning method constructs K (N ≥ K) partitions of the data, with each partition representing a cluster.

## What is partitioning method in data mining?

**This clustering method classifies the information into multiple groups based on the characteristics and similarity of the data**. Its the data analysts to specify the number of clusters that has to be generated for the clustering methods.

## What is decision tree in system analysis and design?

Decision trees are **a method for defining complex relationships by describing decisions and avoiding the problems in communication**. A decision tree is a diagram that shows alternative actions and conditions within horizontal tree framework. Thus, it depicts which conditions to consider first, second, and so on.

## What is decision tree algorithm in machine learning?

Share. Introduction Decision Trees are a type of Supervised Machine Learning (that is you explain what the input is and what the corresponding output is in the training data) where the data is continuously split according to a certain parameter.

## How does Dell distribute its products?

DELL works on build to order business model and uses Just in time strategy to distribute its products at optimal prices there by **decreasing the inventory cost and delivery time**. Dell also has its own dedicated retail stores. But the major sale is driven through modern retailers as well as Ecommerce.

## How Dell uses the information sharing concept?

Dell's information system also **allows customers to use their ERP procurement application to order products** Dell provides customers with personal support sites where information about the products and their history conditions are kept and processed. Dell works with various suppliers for components and softwares.

## What is data mining in healthcare?

What is Data Mining? The purpose of data mining, whether it's being used in healthcare or business, is **to identify useful and understandable patterns by analyzing large sets of data**. These data patterns help predict industry or information trends, and then determine what to do about them.

## How can data mining help companies in the healthcare industry in ways other than the ones mentioned in this case )?

One of the most prominent examples of data mining use in healthcare is **detection and prevention of fraud and abuse**. In this area, data mining techniques involve establishing normal patterns, identifying unusual patterns of medical claims by healthcare providers (clinics, doctors, labs, etc).

## What is partitioning clustering?

Partitional clustering **decomposes a data set into a set of disjoint clusters**. Given a data set of N points, a partitioning method constructs K (N ≥ K) partitions of the data, with each partition representing a cluster.

## Where is clustering used?

Clustering analysis is broadly used in many applications such as **market research, pattern recognition, data analysis, and image processing**. Clustering can also help marketers discover distinct groups in their customer base. And they can characterize their customer groups based on the purchasing patterns.

## What is known as clustering?

Cluster analysis or clustering is **the task of grouping a set of objects in such a way that objects in the same group (called a cluster) are more similar (in some sense) to each other than to those in other groups (clusters)**.

## What is clustering and types of clustering?

Clustering itself can be categorized into two types viz. **Hard Clustering and Soft Clustering**. In hard clustering, one data point can belong to one cluster only. But in soft clustering, the output provided is a probability likelihood of a data point belonging to each of the pre-defined numbers of clusters.

## What are clustering partitions?

Partitional clustering (or partitioning clustering) are **clustering methods used to classify observations, within a data set, into multiple groups based on their similarity**. The algorithms require the analyst to specify the number of clusters to be generated.

## What is performed in initial investigation of system planning?

First step in SDLC is the **identification of the user's need**. The initial investigation is one way to do this. Another objective at this stage is to determine whether the user's need is feasible or not.

## What is feasibility study in system analysis and design?

Feasibility Study **It identifies the possibility of improving an existing system, developing a new system, and produce refined estimates for further development of system**. It is used to obtain the outline of the problem and decide whether feasible or appropriate solution exists or not.

## What is clustering in machine learning?

In machine learning too, we often group examples as a first step to understand a subject (data set) in a machine learning system. **Grouping unlabeled examples** is called clustering. As the examples are unlabeled, clustering relies on unsupervised machine learning.

## Which type of inference is incorporated in decision tree learning model justify your answer?

Decision tree learning is a method that uses **inductive inference** to approximate a target function, which will produce discrete values. It is widely used, robust to noisy data, and considered a practical method for learning disjunctive expressions.