Predictive models are always predict the future;
What is the difference between predictive and descriptive models?
Predictive models are always predict the future; descriptive models focus on past events.
Unlike descriptive models, there is no estimation of values for predictive models.
Unlike predictive models, there is no estimation of values for descriptive models.
Predictive models are generally supervised models; descriptive models are generally unsupervised.
What are some common challenges with healthcare data that often require ETL work? (Select all that apply).
It is often necessary to remove duplicate records.
Cross-walk of data mapping issues exist.
Data differences occur through time.
Many tables have many rows per patient.
Which of the following represents the common transformation processes? (Select all that apply).
Select Specific Records
Aggregate Numeric Data
Recode Data Values
Applying Grouper Models to Analytical Datasets
Matching Concepts to Database Fields
What are some alternative names for co-occurrence grouping?
Set Mining, Market Basket Analysis
Set Mining, Association Rules Mining, and Market Basket Analysis
Supervised learning, Cluster analysis
Market Analysis, Predictive modeling, Unsupervised learning
What did Einstein say about approaches to science and analytics?
"Every analysis should match the reality of the situation being modeled. Complexity rules."
"The world is complex. Embrace it and find theories to describe it perfectly."
"Model the world in all of its true beauty."
"Everything should be made as simple as possible, but not simpler."
What is the best definition of classification?
Classification seeks to predict which of a set of classes that individuals or observations belongs to
Classification is a domain of healthcare analytics related to groupers
Classification is an unsupervised method to group medical terms
Classification seeks to put observations or records into granular sub-categories
Which statements accurately reflect challenges associated with analyzing temporal sequences? (Select all that apply).
Analyzing event sequences is relatively easy once analysts apply the SEMMA approach.
Analyzing temporal sequences often takes additional effort to transform the data into the proper structure.
Analyzing event sequences is like transposing data into different analytical structures.
Even if it is relatively easy for a good programmer to retrieve all the raw data and timestamps, it is much harder to analyze the data to create actionable information from the raw data.
Event sequencing analytics is usually not required in healthcare - groupers solve this problem.
Which statement is the best approach when starting an ETL project?
Provide a complete list of all database fields to the client - ask them to select the ones that they need.
Map concepts to database fields after a preliminary data extraction has been provided to the analytical team.
Before looking for specific data fields available in the database, decide which concepts are required for the analytical project.
Perform statistical analyses early in the process - this will help inform the ETL extraction.
What does the acronym SEMMA mean?
Study, Explore, Model, Modify, Analyze
Sample, Explain, Modify, Manipulate, Assess
Standardize, Explore, Model, Modify, Assess
Sample, Explore, Modify, Model, Assess
What are additional names for columns? What are additional names for rows?
Columns: Fields, cases
Rows: Variables, features
Columns: Values, attributes
Rows: Records, observations
Columns: Variables, features, fields, or attributes
Rows: Records, instances, cases, or individuals
This question has already been tackled by one of our writers and a good grade recorded. You can equally get high grades by simply making your order for this or any other school assignment that you may have.
Every Student Buys Essays from us, here is why!
Pressed for time to complete assignments or when you feel like you cannot write, you can purchase an
essay on our website. Some students also want model papers to use as samples when revising or
writing. There are also students who approach our essay writing service to beat deadlines. We handle
every type of homework, assignment, and academic writing tasks. You can buy college essays and other
assignments here. At a glance, here are some reasons students prefer our website.
100% Original Essays and Papers
You can be sure that you are getting a paper that is custom written based on your instructions. We do
not sell papers that are pre-written. Instead, we write every essay from scratch. When you say “write my
essay,” we respond by giving you a paper that is 100% original and free of any plagiarism. The essays you
purchase from us have never been sold anywhere.
Flexible & Affordable Prices
It does not cost a fortune to get academic writing help on our website. If you have a question from class,
place an order, get a discount, and get cheap essay writing services. What you see as the price is what
you pay for. There are no any hidden charges. If you need urgent papers, they might cost a little more,
but the price is worth the quality you get in the end. Hire a professional academic writer beginning from
$13 a page.
Anonymity, Privacy, and Confidentiality
No one will ever know that you purchased an essay or assignment from our website. The essays you buy
from us are written by experts. Your data is only used to coordinate the essay writing services you get.
No one can access your personal information and data. Go ahead and order an essay from our website.
It is safe, secure, and convenient.