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Data Science Overview by Mike Loukides

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Questions and Answers

What is one of the research problems in big data science according to the text?

Developing new hardware technologies
Optimizing database management
Big data classification (correct)
Improving network infrastructure

What are the three key characteristics of big data mentioned in the text?

Volume, velocity, and variety (correct)
Variability, visualization, and volatility
Velocity, veracity, and volume
Validity, veracity, and value

What is one of the technological dilemmas in big data science mentioned in the text?

The difficulty in finding skilled data scientists
The nonexistence of technology that can manage and analyze dynamically growing massive data efficiently (correct)
The lack of effective data storage solutions
The high cost of modern data processing hardware

What is one of the machine learning techniques mentioned in the text that is suitable for big data classification?

Decision tree learning (C) Signup and view all the answers

What is one of the dimensionality reduction techniques mentioned in the text?

Principal component analysis (PCA) (A) Signup and view all the answers

What technology is mentioned in the text that facilitates distributed machine learning?

Hadoop (A) Signup and view all the answers

What is data science primarily concerned with?

The management and analysis of data sets (A) Signup and view all the answers

What type of systems can produce massive amounts of data, or 'big data'?

All of the above (D) Signup and view all the answers

What is a challenge associated with 'big data'?

It is unstructured and hard to analyze (B) Signup and view all the answers

Which of the following industries or organizations is NOT mentioned as facing challenges with 'big data'?

Manufacturing industries (D) Signup and view all the answers

What is the purpose of the field of 'big data science'?

To address the challenges of managing and analyzing 'big data' (D) Signup and view all the answers

What is required for the advancement of 'big data science'?

A new direction in research and educational efforts (D) Signup and view all the answers

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