Using modeling for decision support can currently achieve all of the following
EXCEPT
A) enhance the decision making process.
B) enable organizations to see likely results of their decisions.
C) replace strategy formulation at top levels of the organization.
D) reduce the costs of providing services to customers.
In handling uncertainty in decision modeling, what does the pessimistic approach do?
A) It assumes the worst possible outcome of one alternative will occur and then avoids
it.
B) It assumes the worst possible outcome of some alternatives will occur and then
selects the best of them.
C) It assumes the worst possible outcome of each alternative will occur and then selects
the worst of them.
D) It assumes the worst possible outcome of each alternative will occur and then selects
the best of them.
What are the two main types of Web analytics?
A) old-school and new-school Web analytics
B) Bing and Google Web analytics
C) off-site and on-site Web analytics
D) data-based and subjective Web analytics
In which stage of the simulation methodology do you determine how long to run the
simulation?
A) defining the problem
B) designing the experiment
C) testing and validating the model
D) constructing the simulation model
In the opening vignette, predictive modeling is described as
A) estimating the future using the past.
B) not yet accepted in the business world.
C) the least practiced branch of data mining.
D) unable to handle complex predictive problems.
Which of the following statements about Web site conversion statistics is FALSE?
A) Web site visitors can be classed as either new or returning.
B) Visitors who begin a purchase on most Web sites must complete it.
C) The conversion rate is the number of people who take action divided by the number
of visitors.
D) Analyzing exit rates can tell you why visitors left your Web site.
All of the following are disadvantages/limitations of the SVM technique EXCEPT
A) model building involves complex and time-demanding calculations.
B) selection of the kernel type and kernel function parameters is difficult.
C) they have high algorithmic complexity and extensive memory requirements for
complex tasks.
D) their accuracy is poor in many domains compared to neural networks.
In which stage of the simulation methodology do you determine the variables and
gather data?
A) defining the problem
B) designing the experiment
C) testing and validating the model
D) constructing the simulation model
The HP Case illustrates that after analytics are chosen to solve a problem, building a
new decision model from scratch or purchasing one may not always be the best
approach. Why is that?
A) Decision models should never be purchased, only developed in house.
B) A related tool requiring slight modification may already exist.
C) CIOs are more likely to allocate funds to new development.
D) Analytic models work better when they are built from scratch or purchased.
Spreadsheets are particularly useful for all of the following reasons EXCEPT
A) they are able to import and export to many different file formats.
B) it is easy to manipulate data and see results instantly.
C) they can be used to build static and dynamic models.
D) they easily import and manipulate massive databases.
Which of the following statements is more descriptive of active data warehouses in
contrast with traditional data warehouses?
A) strategic decisions whose impacts are hard to measure
B) detailed data available for strategic use only
C) large numbers of users, including operational staffs
D) restrictive reporting with daily and weekly data currency
Which component of service-oriented DSS can be described as optimizing the DSS
environment use by organizing its capabilities and knowledge, and assimilating them
into the business processes?
A) information delivery portals
B) information services with library and administrator
C) extract, transform, load
D) data marts
In general, what is the best kind of Web traffic to a Web site?
A) European Web traffic
B) paid Web traffic
C) bot-generated traffic
D) organic Web traffic
When representing data in a data warehouse, using several dimension tables that are
each connected only to a fact table means you are using which warehouse structure?
A) star schema
B) snowflake schema
C) relational schema
D) dimensional schema
Support vector machines are a popular machine learning technique primarily because of
A) their relative cost and superior predictive power.
B) their superior predictive power and their theoretical foundation.
C) their relative cost and relative ease of use.
D) their high effectiveness in the very few areas where they can be used.
Data warehouses provide direct and indirect benefits to using organizations. Which of
the following is an indirect benefit of data warehouses?
A) better and more timely information
B) extensive new analyses performed by users
C) simplified access to data
D) improved customer service
Though useful in business applications, neural networks are a rough, inexact model of
how the brain works, not a precise replica.
The Web can play a significant role in making large amounts of information available to
decision makers. Decision makers must be careful that this glut of information does not
A) increase their enthusiasm for data available on the web.
B) take on the same credibility of internally-generated data.
C) take on the same role as human intuition.
D) detract from the quality and speed of decision making.
List and describe the three main “V”s that characterize Big Data.
Which of the following is NOT a component of a linear programming problem?
A) internal metrics
B) constraints
C) objective function
D) decision variables
Which module is missing from most expert systems?
A) user interface subsystem
B) knowledge base subsystem
C) inference engine
D) knowledge refinement subsystem
Which tool would be best to use when there is a need to very rapidly and cheaply
develop a rule-based expert system?
A) LISP or Prolog languages
B) ASP.NET
C) an ES shell
D) C++
Which of the following online analytical processing (OLAP) technologies does NOT
require the precomputation and storage of information?
A) MOLAP
B) ROLAP
C) HOLAP
D) SQL
What does advanced analytics for social media do?
A) It helps identify your followers.
B) It identifies links between groups.
C) It examines the content of online conversations.
D) It identifies the biggest sources of influence online.
What types of documents are BEST suited to semantic labeling and aggregation to
determine sentiment orientation?
A) medium- to large-sized documents
B) small- to medium-sized documents
C) large-sized documents
D) collections of documents
Which data mining process/methodology is thought to be the most comprehensive,
according to kdnuggets.com rankings?
A) SEMMA
B) proprietary organizational methodologies
C) KDD Process
D) CRISP-DM
In text mining, which of the following methods is NOT used to reduce the size of a
sparse matrix?
A) using a domain expert
B) normalizing word frequencies
C) using singular value decomposition
D) eliminating rarely occurring terms
GPS Navigation is an example of which kind of location based analytics?
A) organization-oriented geospatial static approach
B) organization-oriented location-based dynamic approach
C) consumer-oriented geospatial static approach
D) consumer-oriented location-based dynamic approach
Which of the following BEST enables a data warehouse to handle complex queries and
scale up to handle many more requests?
A) use of the web by users as a front-end
B) parallel processing
C) Microsoft Windows
D) a larger IT staff
All of the following are true about in-database processing technology EXCEPT
A) it pushes the algorithms to where the data is.
B) it makes the response to queries much faster than conventional databases.
C) it is often used for apps like credit card fraud detection and investment risk
management.
D) it is the same as in-memory storage technology.
When a DSS is built, used successfully and integrated into the company’s business
processes, it was most likely built for a(n)
A) recurrent decision.
B) one-off decision.
C) unimportant decision.
D) ambiguous decision.
Which component of service-oriented DSS can be described as a subset of a data
warehouse that supports specific decision and analytical needs and provides business
units more flexibility, control, and responsibility?
A) information delivery portals
B) information services with library and administrator
C) extract, transform, load
D) data marts
A Web client that connects to a Web server, which is in turn connected to a BI
application server, is reflective of a
A) one tier architecture.
B) two tier architecture.
C) three tier architecture.
D) four tier architecture.
Identify, with a brief description, each of the four steps in the sentiment analysis
process.
What is NoSQL as used for Big Data? Describe its major downsides.
What are the basic ingredients of a good collection of performance measures?
Candidate solutions (or chromosomes in genetic algorithms) combine to produce
offspring in each algorithmic iteration. Along with the offspring, some of the best
solutions are also migrated to the next generation in order to preserve the best solution
achieved up until the current iteration. This concept is called ________.
________ describe the structure and meaning of the data, contributing to their effective
use.
In the opening vignette, Midwest ISO used optimization ________ in their problem
solving.
The ________ Model, also known as the data mart approach, is a “plan big, build
small” approach. A data mart is a subject-oriented or department-oriented data
warehouse. It is a scaled-down version of a data warehouse that focuses on the requests
of a specific department, such as marketing or sales.
There has been an increase in data mining to deal with global competition and
customers’ more sophisticated ________ and wants.
________ speeds time to insights and enables better data governance by performing
data integration and analytic functions inside the database.
Analytical techniques are used in the choice phase of problem solving. How can we
define analytical techniques?
In an ANN, ________ express the relative strength (or mathematical value) of the input
data or the many connections that transfer data from layer to layer.
In non-quantitative models, the relationships are symbolic or ________.
When identifying the polarity of text, the most granular level for polarity identification
is at the ________ level.
List and describe three levels or categories of analytics that are most often viewed as
sequential and independent, but also occasionally seen as overlapping.
Sabre used executive ________ to present performance metrics in a concise way to its
executives.
A common way of introducing data warehousing is to refer to its fundamental
characteristics. Describe three characteristics of data warehousing.
In the Michigan State Agencies case, the approach used was a(n) ________ one, instead
of developing separate BI/DW platforms for each business area or state agency.
A functioning knowledge management system (KMS) follows six steps in a cycle. The
reason for the cycle is that knowledge is dynamically refined over time. What are the
six steps in the KMS cycle?