Enhanced Discovering Computers, Fundamentals: Your Interactive Guide To The Digital World, 2013 Edition (shelly Cashman)
1st Edition
ISBN: 9781133596448
Author: Misty E. Vermaat
Publisher: Cengage Learning
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Chapter 8, Problem 20CT
Program Plan Intro
Magnetic tape:
Magnetic tape drives are the primary storage device used in first generation computers.
It is a sequential storage device, so that the data are accessed in sequential order that is one after another.
- When compared to disk drive, tape drive can read part of data by physically winding the tape between rolls. This results in very slow average seeking times.
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(Short-answer) b. Continue from the previous question. Suppose part of the data you extracted from the data warehouse is the following. Identify the missing values you think exist in the dataset. Use Column letter and Row number to refer to each missing value in the dataset. Please write down how you want to address each particular missing value (you can group them if they receive same treatment). For imputation, you do not need to calculate the exact imputed values but just describe what kind of value you want to use to impute.
Please original work
Locate data warehousing solutions offered by IBM, Oracle, Microsoft, and Amazon
Compare and contrast the capabilities of each solution and provide several names of some organizations that utilize each of these solutions.
Please cite in text references and add weblinks
Need Help: Which of the following statements about confusion matrix is wrong
A) Confusion matrix is a performance measure for probability prediction techniques
B) Confusion matrix is derived based on classification rules with cut-off value 0.5
C) Confusion matrix is derived based on training partition to measure a model’s predictive performance
D) None of the above
Chapter 8 Solutions
Enhanced Discovering Computers, Fundamentals: Your Interactive Guide To The Digital World, 2013 Edition (shelly Cashman)
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