Data Science Methodology: Data Collection and Processing

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What library is used for scraping HTML pages in Python?

Chrome Developer Tools
Mozilla HTML elements
PyPDF
Beautiful Soup (correct)

Which module is used for handling exceptions in the provided Python code snippet?

`try`
`from urllib import urlopen`
`import pyPdf` (correct)
`from BeautifulSoup import BeautifulSoup`

What does the code snippet `pdf.getPage(0).extractText()` do?

Opens a PDF file using PyPDF
Handles exceptions in reading a PDF file
Gets the text of the first page of a PDF file (correct)
Extracts text from an HTML page

Which tool is mentioned for a Quick Tour of HTML in the provided text?

Chrome Developer Tools (B) Signup and view all the answers

What does the tag
represent in HTML?

Bullet points list (B) Signup and view all the answers

Which keyword is used to handle exceptions in Python?

<code>except</code> (A) Signup and view all the answers

What is the primary purpose of data collection?

To gather and measure information on variables of interest in an established systematic fashion (B) Signup and view all the answers

Which of the following is NOT a type of sensory-based data mentioned in the text?

Tactile (B) Signup and view all the answers

What is the purpose of data scraping according to the text?

To organize and store data in a structured format (D) Signup and view all the answers

Which of the following is considered a type of 'manifest data' according to the text?

Likes, Ratings, Reviews, Comments, Views, Searches (B) Signup and view all the answers

Which of the following is an example of a 'proprietary data collection' mentioned in the text?

Lexis-Nexis (A) Signup and view all the answers

Which of the following is an example of 'bulk downloads' mentioned in the text?

Wikipedia (D) Signup and view all the answers

What is data scraping?

A technology to extract data from websites in an automated manner (B) Signup and view all the answers

What are some software tools commonly used for data scraping?

Python, Ruby, Perl, Java, and web scrapers like 30 Digits and Grepsr (A) Signup and view all the answers

What should be considered when scraping data from websites?

Check if there is an API or downloadable data available, and respect website policies (A) Signup and view all the answers

What is OCR (Optical Character Recognition) used for?

Creating digital images from paper documents (C) Signup and view all the answers

Which software is considered the best in class for open-source OCR?

Tesseract (C) Signup and view all the answers

What is Amazon's Mechanical Turk used for in data scraping?

Creating Human Intensive Tasks (HITs) for data processing (A) Signup and view all the answers

What is the Levenshtein distance between the strings 'intention' and 'execution' if each operation costs 2 for substitution?

8 (B) Signup and view all the answers

In text processing, what is the purpose of stemming and lemmatization?

Transforming words to their base or root form (C) Signup and view all the answers

What is an important step in preparing text data that involves removing common words like 'if, and, but, who'?

Removing stop words (D) Signup and view all the answers

Which percentage of rare words is typically removed in text processing depending on the application?

5% (B) Signup and view all the answers

What Python library is commonly used for Natural Language Processing tasks like text processing?

NLTK (Natural Language Toolkit) (D) Signup and view all the answers

What is the purpose of regular expressions in text processing?

Performing complex search patterns (D) Signup and view all the answers

What does the symbol `?` represent in regular expressions?

Matches the previous character zero or one time (B) Signup and view all the answers

What is the purpose of the `+` operator in regular expressions?

Matches one or more occurrences of the previous character or group (B) Signup and view all the answers

What does a false positive (Type 1 error) mean in the context of regular expressions?

Matching a pattern that should not have been matched (A) Signup and view all the answers

What is the minimum edit distance between two strings?

The minimum number of edit operations (insertion, deletion, substitution) required to convert one string to another (C) Signup and view all the answers

Which of the following is not an application of edit distance?

Network routing (D) Signup and view all the answers

What does the `.*` pattern match in regular expressions?

Any character zero or more times (D) Signup and view all the answers

Data Science Methodology: Data Collection and Processing

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Questions and Answers

What library is used for scraping HTML pages in Python?

Which module is used for handling exceptions in the provided Python code snippet?

What does the code snippet `pdf.getPage(0).extractText()` do?

Which tool is mentioned for a Quick Tour of HTML in the provided text?

What does the tag
represent in HTML?

Which keyword is used to handle exceptions in Python?

What is the primary purpose of data collection?

Which of the following is NOT a type of sensory-based data mentioned in the text?

What is the purpose of data scraping according to the text?

Which of the following is considered a type of 'manifest data' according to the text?

Which of the following is an example of a 'proprietary data collection' mentioned in the text?

Which of the following is an example of 'bulk downloads' mentioned in the text?

What is data scraping?

What are some software tools commonly used for data scraping?

What should be considered when scraping data from websites?

What is OCR (Optical Character Recognition) used for?

Which software is considered the best in class for open-source OCR?

What is Amazon's Mechanical Turk used for in data scraping?

What is the Levenshtein distance between the strings 'intention' and 'execution' if each operation costs 2 for substitution?

In text processing, what is the purpose of stemming and lemmatization?

What is an important step in preparing text data that involves removing common words like 'if, and, but, who'?

Which percentage of rare words is typically removed in text processing depending on the application?

What Python library is commonly used for Natural Language Processing tasks like text processing?

What is the purpose of regular expressions in text processing?

What does the symbol `?` represent in regular expressions?

What is the purpose of the `+` operator in regular expressions?

What does a false positive (Type 1 error) mean in the context of regular expressions?

What is the minimum edit distance between two strings?

Which of the following is not an application of edit distance?

What does the `.*` pattern match in regular expressions?

More Like This

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Data Science Methodology: Data Collection and Processing

Choose a study mode

Podcast

Questions and Answers

What library is used for scraping HTML pages in Python?

Which module is used for handling exceptions in the provided Python code snippet?

What does the code snippet pdf.getPage(0).extractText() do?

Which tool is mentioned for a Quick Tour of HTML in the provided text?

What does the tag represent in HTML?

Which keyword is used to handle exceptions in Python?

What is the primary purpose of data collection?

Which of the following is NOT a type of sensory-based data mentioned in the text?

What is the purpose of data scraping according to the text?

Which of the following is considered a type of 'manifest data' according to the text?

Which of the following is an example of a 'proprietary data collection' mentioned in the text?

Which of the following is an example of 'bulk downloads' mentioned in the text?

What is data scraping?

What are some software tools commonly used for data scraping?

What should be considered when scraping data from websites?

What is OCR (Optical Character Recognition) used for?

Which software is considered the best in class for open-source OCR?

What is Amazon's Mechanical Turk used for in data scraping?

What is the Levenshtein distance between the strings 'intention' and 'execution' if each operation costs 2 for substitution?

In text processing, what is the purpose of stemming and lemmatization?

What is an important step in preparing text data that involves removing common words like 'if, and, but, who'?

Which percentage of rare words is typically removed in text processing depending on the application?

What Python library is commonly used for Natural Language Processing tasks like text processing?

What is the purpose of regular expressions in text processing?

What does the symbol ? represent in regular expressions?

What is the purpose of the + operator in regular expressions?

What does a false positive (Type 1 error) mean in the context of regular expressions?

What is the minimum edit distance between two strings?

Which of the following is not an application of edit distance?

What does the .* pattern match in regular expressions?

More Like This

Common Sense Psychology Quiz: Test Your Knowledge

Research Methods and Data Collection

Research Methodology Steps and Designs

Science Methodology and Experiments

What does the code snippet `pdf.getPage(0).extractText()` do?

What does the tag
represent in HTML?

What does the symbol `?` represent in regular expressions?

What is the purpose of the `+` operator in regular expressions?

What does the `.*` pattern match in regular expressions?