Please use this template and answer the questions on this form. essay

Midterm Test
The midterm test is over chapters 1-5. Please use this template and answer the questions on this form. Place your name at the top of this page prior to submitting (or add a cover page to this paper),

1. For each of the datasets note if data privacy is an important issue

a. Census data collected from 1900- 1950

b. IP addresses and visit times of web users who visit your website.

c. Images from Earth orbiting satellites

d. Names and addresses of people from the telephone book

e. Names and email addresses collected from the web.

2. Classify the following attributes as binary, discrete, or continuous. Also classify them as qualitative (nominal or ordinal) or quantitative (interval or ratio). Some cases may have more than one interpretation, so briefly indicate your reasoning if you think there may be some ambiguity.

Example: Age in years. Answer: Discrete, quantitative, ratio

(a) Time in terms of AM or PM.

(b) Brightness as measured by a light meter.

(c) Brightness as measured by people’s judgments.

(d) Angles as measured in degrees between 0◦ and 360◦.

(e) Bronze, Silver, and Gold medals as awarded at the Olympics.

(f) Height above sea level.

(g) Number of patients in a hospital.

(h) ISBN numbers for books. (Look up the format on the Web.)

(i) Ability to pass light in terms of the following values: opaque, translucent, transparent.

(j) Military rank.

(k) Distance from the center of campus.

(l) Density of a substance in grams per cubic centimeter.

(m) Coat check number. (When you attend an event, you can often give your coat to someone who, in turn, gives you a number that you can use to claim your coat when you leave.)

3. Which of the following quantities is likely to show more temporal autocorrelation: daily rainfall or daily temperature? Why?

4. Distinguish between noise and outliers. Be sure to consider the following questions.

a. Is noise ever interesting or desirable? Outliers?

b. Can noise objects be outliers?

c. Are noise objects always outliers?

d. Are outliers always noise objects?

e. Can noise make a typical value into an unusual one, or vice versa?

5. Discuss the advantages and disadvantages of using sampling to reduce the number of data objects that need to be displayed. Would simple random sampling (without replacement) be a good approach to sampling? Why or why not?

6. How might you address the problem that a histogram depends on the number and location of the bins?

7. Show that the entropy of a node never increases after splitting it into smaller successor nodes.

8. Compute a two-level decision tree using the greedy approach described in this chapter. Use the classification error rate as the criterion for splitting. What is the overall error rate of the induced tree?

Note: To determine the test condition at the root note, you first need to compute the error rates for attributes X, Y, and Z.

For attribute X the corresponding counts are:

x

c1

c2

0

60

60

1

40

40

For Y the corresponding counts are:

y

c1

c2

0

40

60

1

60

40

For Z the corresponding counts are:

Z

c1

c2

0

30

70

1

70

30

9. Consider a binary classification problem with the following set of attributes and attribute values:

• Air Conditioner = {Working, Broken}

• Engine = {Good, Bad}

• Mileage = {High, Medium, Low}

• Rust = {Yes, No}

Suppose a rule-based classifier produces the following rule set:

Mileage = High −→ Value = Low

Mileage = Low −→ Value = High

Air Conditioner = Working, Engine = Good −→ Value = High

Air Conditioner = Working, Engine = Bad −→ Value = Low

Air Conditioner = Broken −→ Value = Low (

a) Are the rules mutually exclusive?

b) Is the rule set exhaustive?

c) Is ordering needed for this set of rules?

d) Do you need a default class for the rule set?

10. Consider the one-dimensional data set shown below:

X

.5

3.0

4.5

4.6

4.9

5.2

5.3

5.5

7.0

9.5

Y

+

+

+

+

(a) Classify the data point x = 5.0 according to its 1-, 3-, 5-, and 9-nearest neighbors (using majority vote).

(b) Repeat the previous analysis using the distance-weighted voting approach.

a

-research paper writing service

Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

We value our customers and so we ensure that what we do is 100% original..
With us you are guaranteed of quality work done by our qualified experts.Your information and everything that you do with us is kept completely confidential.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

The Product ordered is guaranteed to be original. Orders are checked by the most advanced anti-plagiarism software in the market to assure that the Product is 100% original. The Company has a zero tolerance policy for plagiarism.

Read more

Free-revision policy

The Free Revision policy is a courtesy service that the Company provides to help ensure Customer’s total satisfaction with the completed Order. To receive free revision the Company requires that the Customer provide the request within fourteen (14) days from the first completion date and within a period of thirty (30) days for dissertations.

Read more

Privacy policy

The Company is committed to protect the privacy of the Customer and it will never resell or share any of Customer’s personal information, including credit card data, with any third party. All the online transactions are processed through the secure and reliable online payment systems.

Read more

Fair-cooperation guarantee

By placing an order with us, you agree to the service we provide. We will endear to do all that it takes to deliver a comprehensive paper as per your requirements. We also count on your cooperation to ensure that we deliver on this mandate.

Read more

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency