DEAN 690_Week 8

Assignment: Week 8

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Visualizing Time-Series Change ( Python )

The author use python to create time-series line charts to show actual value of units, change in absolute units, percent chang, and so on.

Link: http://www.kdnuggets.com/2017/03/visualizing-time-series-change.html

An article “Visualizing Change: An Innovation in Time-Series Analysis” is created by SAS Institute. [1]

Reference:

[1] 2017. [Online]. Available: https://www.perceptualedge.com/articles/visual_business_intelligence/visualizing_change.pdf. [Accessed: 20- Mar- 2017].

Dataset

This dataset provides the following statement “Temporary Foreign Worker Program and International Mobility Program work permit holders and work permit holders for humanitarian and compassionate purposes by year in which the permit came into effect.”

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Dataset: Temporary Foreign Workers in Canada

Link: http://open.canada.ca/data/en/dataset/67fd1fae-4950-4018-a491-62e60cbd6974

Questions

25. What makes a dataset gold standard?

From StackExchange discussion, making gold standard is answering the most accurate test, benchmark, or diagnostic for the dataset.

Link:

StackExchange

 https://stats.stackexchange.com/questions/9159/what-is-the-meaning-of-a-gold-standard/9166

Wikipedia

https://en.wikipedia.org/wiki/Gold_standard_%28test%29

28. What is an API ? What are APIs used for?

API is application programming interfaces. It includes toolkits, frameworks, libraries, and software development kits. APIs provide machine to read the code and easier the process for programmers to use certain knowledge to create software. [1]

Reference:

[1] Myers, Brad A., and Jeffrey Stylos. "Improving API Usability". Communications of the ACM 59.6 (2016): 62-69. Web.

44. What are the benefits of Regularization?

In machine learning field, the benefits of regularization are solving five main technical tasks: measuring learning performance, overfitting, regularization, cross-validation, feature selection.

Reference:

[1] A. Prieditis and S. Russell, Machine learning, 1st ed. Burlington: Morgan Kaufmann/Elsevier Science, 2014.

News

This news discussed visualization graphs of Starbucks. These graphs show why Starbucks is shrinking while McDonald’s is growing.

Topic: The Backlash Against Starbucks Is Real, And It Isn't Going Away

https://www.forbes.com/sites/andyswan/2017/03/19/the-backlash-against-starbucks-is-real-and-it-isnt-going-away/#787c7a56713c

Project Idea

From Kaggle, this dataset is related to tech jobs from H-1B Visa Petitions 2011-2016. My project topic is about IT job in Virginia. The person wrote the code to explore the tech jobs in Philadelphia, Pennsylvania. This week will explore and compare the different of each area.

https://www.kaggle.com/mchirico/d/nsharan/h-1b-visa/tech-jobs