Which of the following is an example of a supervised data mining technique? …
A decision tree analysis
is a supervised data mining technique.
Which of the followings is an example of a supervised data mining technique?
Which of the following is an example of a supervised data mining technique? …
A decision tree analysis
is a supervised data mining technique.
Which of the following reporting methods deliver business intelligence to users without any request from the users?
Push publishing
delivers business intelligence to users without any request from the users; the BI results are delivered according to a schedule or as a result of an event or particular data condition.
Which of the following reporting methods requires the user to request business intelligence?
The three fundamental categories of BI analysis are reporting, data mining, and BigData.
Push publishing
requires a user to request BI results.
What is your first step in developing the database simulation?
What is your first step in developing the database?
Talk to the employees who will be using the database
. After the interviews with users, you are ready to select the entities for the database.
What is supervised data mining techniques?
Supervised data mining techniques are
appropriate when you have a specific target value you'd like to predict about your data
. … You then apply that model to data for which that target value is currently unknown. The algorithm identifies the “new” data points that match the model of each target value.
Is an unsupervised data mining technique?
Unlike supervised technique, unsupervised data mining does not have a predetermined objective function, nor does it predict a target value. Unsupervised techniques are those
where there is no outcome variable to predict or classify
. Hence, there is no learning from cases where such an outcome variable is known.
Is an unsupervised data mining technique in which statistical techniques identify groups of entities that have similar characteristics?
With unsupervised data mining, analysts do not create a model or hypothesis before running the analysis.
Cluster analysis
is used to identify groups of entities that have similar characteristics.
Which one of the following statements define data mining?
Which of the following statements best describes data mining? Data mining is a type of intelligence gathering that uses statistical techniques to explore
records
in a data warehouse, hunting for hidden patterns and relationships that are undetectable in routine reports.
Which of the following activities in the business intelligence process involves delivering business intelligence to the knowledge workers who need it?
Publish results
is the process of delivering business intelligence to the knowledge workers who need it. Pull publishing delivers business intelligence to users without any request from the users.
Which of the following is a business intelligence task?
Common functions of business intelligence technologies include
reporting, online analytical processing, analytics, dashboard development, data mining
, process mining, complex event processing, business performance management, benchmarking, text mining, predictive analytics, and prescriptive analytics.
What may happen if an organization chooses to say no to artificial intelligence AI )?
What may happen if an organization chooses to say no to artificial intelligence (AI)?
The organization may lose a competitive advantage
.
What is OLAP used for?
OLAP (for
online analytical processing
) is software for performing multidimensional analysis at high speeds on large volumes of data from a data warehouse, data mart, or some other unified, centralized data store.
What are the different types of data models?
- Conceptual data model. Conceptual data models are the most simple and abstract. …
- Physical data model. …
- Hierarchical data model. …
- Relational data model. …
- Entity-relationship (ER) data model. …
- Object-oriented data model. …
- Data modeling software makers.
How are data models used for database development?
A data model
helps design the database at the conceptual, physical and logical levels
. Data Model structure helps to define the relational tables, primary and foreign keys and stored procedures. It provides a clear picture of the base data and can be used by database developers to create a physical database.
What is data Modelling in database?
Data modeling is
the process of diagramming data flows
. When creating a new or alternate database structure, the designer starts with a diagram of how data will flow into and out of the database.
What are supervised and unsupervised learning?
In a supervised learning model, the algorithm learns on a labeled dataset, providing an answer key that the algorithm can use to evaluate its accuracy on training data. An unsupervised model, in contrast,
provides unlabeled data that
the algorithm tries to make sense of by extracting features and patterns on its own.
What are the different types of data mining techniques?
- Classification analysis. This analysis is used to retrieve important and relevant information about data, and metadata. …
- Association rule learning. …
- Anomaly or outlier detection. …
- Clustering analysis. …
- Regression analysis.
What is data mining what are supervised and unsupervised learning techniques?
Machine learning uses two types of techniques: supervised learning, which trains a model on known input and output data so that it can predict future outputs, and unsupervised learning, which
finds hidden patterns or intrinsic structures in input data
.
What is supervised and unsupervised classification?
Two major categories of image classification techniques include
unsupervised (calculated by software) and supervised (human-guided) classification
. … The user can specify which algorism the software will use and the desired number of output classes but otherwise does not aid in the classification process.
What are different types of unsupervised learning?
Clustering and Association
are two types of Unsupervised learning. Four types of clustering methods are 1) Exclusive 2) Agglomerative 3) Overlapping 4) Probabilistic.
Which of the following is the unsupervised technique?
Below is the list of some popular unsupervised learning algorithms:
K-means clustering
.
KNN
(k-nearest neighbors) Hierarchal clustering.
Is an unsupervised data mining technique in which machine learning is used to group together data points that have similar characteristics?
“Clustering”
is the process of grouping similar entities together. The goal of this unsupervised machine learning technique is to find similarities in the data point and group similar data points together.
What is the application of statistical techniques to find patterns and relationships among data for classification?
Data mining
is the application of statistical techniques to find patterns and relationships among data for classification and prediction.
Is the application of statistical and machine learning techniques to find patterns?
Data mining
, sometimes used synonymously with “knowledge discovery,” is the process of sifting large volumes of data for correlations, patterns, and trends. It is a subset of data science that uses statistical and mathematical techniques along with machine learning and database systems.
What is data mining techniques PDF?
Data mining is a
process of extraction of
.
useful information and patterns from huge data
. It is also called as knowledge discovery process, knowledge mining from data, knowledge extraction or data /pattern analysis. Figure 1.
What are the three primary activities in the business intelligence process?
The three primary activities in the BI process are:
acquire data, perform analysis, and publish results
. Data acquisition is the process of obtaining, cleaning, organizing, relating, and cataloging source data.
What is defined as information containing patterns relationships and trends of various forms of data?
Business intelligence
. information containing patterns, relationships, and trends of various forms of data. Data Acquisition.
How should a sales team respond to a customer who has an RFM score of 545?
How should a sales team respond to a customer who has an RFM score of 545?
The sales team should let go of this customer; the loss will be minimal
.
What kind of data can be mined?
- Flat Files.
- Relational Databases.
- DataWarehouse.
- Transactional Databases.
- Multimedia Databases.
- Spatial Databases.
- Time Series Databases.
- World Wide Web(WWW)
Which term defines and describes data and its relationship?
Data definition language (DDL)
A descriptive language used to create and name entities and the relationships between them in a database. Data manipulation language (DML) A language that provides the interface necessary to perform data operations on data within a database.
What is OLAP and its types?
OLAP enables users to analyze the collected data from diverse points of view. … There are three main types of OLAP:
MOLAP, HOLAP, and ROLAP
. These categories are mainly distinguished by the data storage mode. For example, MOLAP is a multi-dimensional storage mode, while ROLAP is a relational mode of storage.
What is the difference between data mining and OLAP?
OLAP and data mining are used to solve different kinds of analytic problems:
OLAP summarizes data and makes forecasts
. … Data mining discovers hidden patterns in data. Data mining operates at a detail level instead of a summary level.
What is ETL logic?
In computing, extract, transform, load (ETL) is
the general procedure of copying data from one or more sources into a destination system
which represents the data differently from the source(s) or in a different context than the source(s).
What business intelligence is and the tools and techniques associated with it?
What is BI? Business Intelligence (BI) includes tools and techniques, for the transformation of raw data into meaningful and actionable information for Business analysis. Every major industry
has
powerful transaction-oriented systems, which stores the data gathered from daily operations into repositories.
What is data analytics and business intelligence?
Business Intelligence deals with complex strategies and technologies that help end-users in analyzing the
data
and perform decision-making activities to grow their business. … Data analytics, on the other hand, is implemented to convert the raw or unstructured data into a user understandable meaningful data format.
What is business intelligence in data warehouse?
What is business intelligence? Business intelligence is
the collection, methodology, organization, and analysis of data
. When most people use the term business intelligence or BI, they are referring to the platforms and practices for the collection, integration, analysis, and presentation of business information.
What are the challenges that could be faced to adapt AI based tools and techniques?
- Computing Power. The amount of power these power-hungry algorithms use is a factor keeping most developers away. …
- Trust Deficit. …
- Limited Knowledge. …
- Human-level. …
- Data Privacy and Security. …
- The Bias Problem. …
- Data Scarcity.
What are the problems you might face if you use AI in different business functions?
- Data. Data quality and quantity. Data labeling. Explainability. Case-specific learning. …
- People. Lack of understanding of AI among non-technical employees. Scarcity of field specialists.
- Business. Lack of business alignment. Difficulty assessing vendors. Integration challenges.
What are two major ethical concerns involving AI?
AI presents three major areas of ethical concern for society:
privacy and surveillance, bias and discrimination
, and perhaps the deepest, most difficult philosophical question of the era, the role of human judgment, said Sandel, who teaches a course in the moral, social, and political implications of new technologies.
What are the 4 types of data models?
There are four types of data models:
Hierarchical model, Network model, Entity-relationship model, Relational model
. These models have further categories which are used according to a different use case.
What are the 4 types of models?
- Formal versus Informal Models. …
- Physical Models versus Abstract Models. …
- Descriptive Models. …
- Analytical Models. …
- Hybrid Descriptive and Analytical Models.