D204 lesson 5 Questions and Answers Already Passed

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D204 lesson 5 Questions and Answers Already Passed Open Data ✔✔Open Data is both free of cost and free of restrictions in use. What is principle of informed consent in research? ✔✔It means ... that research participants are given enough information about the goals, methods and application of the project to decide if they want to participate or not. Self generated data refers to what practice? ✔✔Self-generated data is a method for creating training data for machine learning models where computers engage themselves to generate data. Programming computer to engage with themselves to create their own training data. Representation in pasive data collection? IE Machine learning data ✔✔In the passive collection of machine learning data, representative data is data that comes from a wide range of situations and that can generalize well. IF the data is on the internet, is it open data? ✔✔Open data is specifically marked as being free from restrictions. Just because data is on the web does not meet that it is open data or can be legally used without permission. What is data scraping? ✔✔Data scraping is the creative work in getting data from formats that were not designed for data sharing, such as heat maps or image PDFs. What kind of data be accessed with API? ✔✔Both proprietary and open data can be accessed with APIs, although for proprietary data you will need to include your account information. What is A/B testing? ✔✔A/B testing is a way of comparing variations of a website to allow for the optimization of content and delivery. What is potentially a major advantage of using in-house data? ✔✔You are able to consult/talk with creators/subject matter experts of the in house data. Is it ethical to scrape publicly available data / chart for projects? ✔✔No. Data that is published publicly can still be proprietary, as with a newspaper graphic. Permission would need to be obtained to scrape data from the graphic. What are key characteristics of a tidy data? ✔✔In tidy data, columns are variables, rows are cases, and each file consists of one sheet at one level of observation. How do expert systems mimic the decision-making of experts? ✔✔by explicitly listing decisions and outcomes in a logical chain like a flow chart. An expert system spells out every step in a decision tree like a flow chart. What does it mean that algorithms like neura [Show More]

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