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Questions and Answers
What is the goal of big data analysis?
The goal of big data analysis is to use data to obtain insight and understanding.
What is the DIKW pyramid and how does it relate to data analysis?
The DIKW pyramid represents the relationship between Data, Information, Knowledge, and Wisdom. It illustrates the transformation of raw data into meaningful knowledge and wisdom through interpretation and understanding by humans.
What activities are involved in the data science process according to the text?
The activities in the data science process include Decision Making, Machine Learning, Data Exploration, Information Visualisation, Data Aggregation, Preprocessing, and Warehousing Data.
How does T. S. Eliot's quote 'Where is the wisdom we have lost in knowledge.' relate to the topic of data analysis?
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Give an example of an application that involves all the activities mentioned in the data science process according to the text.
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Explain the process of answering a query about the number of different users who visited a specific web page within a given time period using brute force.
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What is the goal of a (Big) Data System according to the text? Provide examples of questions that can be answered using the information obtained from accumulated data.
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Explain the concept of Lambda Architecture in the context of Big Data Analysis.
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What is the running example provided in the text?
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What is the source of the material mentioned in the text?
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