Podcast
Questions and Answers
What is recall in the context of information retrieval?
What is recall in the context of information retrieval?
- The ratio of relevant documents retrieved to the total number of relevant documents in the collection (correct)
- The ratio of relevant documents retrieved to the total number of documents retrieved
- The number of relevant documents retrieved
- The ratio of documents retrieved to the total number of documents in the collection
What is the formula to calculate precision?
What is the formula to calculate precision?
- (Number of relevant documents retrieved) / (Total number of relevant documents)
- (Total number of documents retrieved) / (Number of relevant documents retrieved)
- (Total number of relevant documents) / (Number of relevant documents retrieved)
- (Number of relevant documents retrieved) / (Total number of documents retrieved) (correct)
What is the purpose of indexing in information retrieval?
What is the purpose of indexing in information retrieval?
- To facilitate efficient and quick retrieval of information (correct)
- To improve recall
- To reduce the number of relevant documents
- To improve precision
What is the relationship between precision and recall?
What is the relationship between precision and recall?
What is the formula to calculate recall?
What is the formula to calculate recall?
What is an index in the context of information retrieval?
What is an index in the context of information retrieval?
What is the purpose of the 'AS' keyword in SQL?
What is the purpose of the 'AS' keyword in SQL?
What type of join returns all rows from the left table and the matched rows from the right table?
What type of join returns all rows from the left table and the matched rows from the right table?
What is the purpose of the 'GROUP BY' clause in SQL?
What is the purpose of the 'GROUP BY' clause in SQL?
What is the purpose of the 'ORDER BY' clause in SQL?
What is the purpose of the 'ORDER BY' clause in SQL?
What type of join returns rows from both tables where the join condition is met?
What type of join returns rows from both tables where the join condition is met?
What is the purpose of the 'COUNT(*)' function in SQL?
What is the purpose of the 'COUNT(*)' function in SQL?
What is the purpose of the sed command in the example?
What is the purpose of the sed command in the example?
What is the main motivation behind working with data?
What is the main motivation behind working with data?
What is a datum according to the text?
What is a datum according to the text?
What is the definition of Data Science according to the text?
What is the definition of Data Science according to the text?
What is the output of the sed command in the example?
What is the output of the sed command in the example?
What is the significance of the quote 'Those who cannot remember the past are condemned to repeat it'?
What is the significance of the quote 'Those who cannot remember the past are condemned to repeat it'?
![[05/Indigirka/02]](https://images.unsplash.com/photo-1451187580459-43490279c0fa?ixid=M3w0MjA4MDF8MHwxfHNlYXJjaHw1fHxTUUwlMjBxdWVyaWVzJTIwYWdncmVnYXRlJTIwZnVuY3Rpb25zJTIwdmlzdWFsaXphdGlvbiUyMGRhdGElMjBhbmFseXNpc3xlbnwxfDB8fHwxNzA2NDc2ODg5fDA&ixlib=rb-4.0.3&w=300&fit=crop&h=200&q=75&fm=webp)
