DATA MINING QUIZ
Data Mining Mastery Quiz
Test your knowledge about data mining with this engaging quiz! Whether you're a novice or an expert, you'll find questions that challenge your understanding of key concepts in data mining.
Quiz Highlights:
- 10 carefully crafted multiple-choice questions
- Covering essential topics like classification, clustering, and knowledge discovery
- Instant feedback on your performance
Which one of the following statements is not correct about the data cleaning?
It refers to the process of data cleaning
It refers to correcting inconsistent data
All of the above
It refers to the transformation of wrong data into correct data
Which one of the following correctly refers to the task of the classification?
A measure of the accuracy, of the classification of a concept that is given by a certain theory
The task of assigning a classification to a set of examples
A subdivision of a set of examples into a number of classes
None of the above
Which of the following also used as the first step in the knowledge discovery process?
Data selection
Data cleaning
Data Transformation
Data Integration
Which of the following refers to the steps of the knowledge discovery process, in which the several data sources are combined?
Data selection
Data cleaning
Data transformation
Data integration
Which one of the following refers to querying the unstructured textual data?
Information access
Information update
Information retrieval
Information Manipulation
Which of the following statement is true about the classification?
It is a measure of accuracy
It is a subdivision of a set
It is the task of assigning a classification
None of the above
In certain cases, it is not clear what kind of pattern need to find, data mining should_________
Try to perform all possible tasks
Perform both predictive and descriptive task
It may allow interaction with the user so that he can guide the mining process
All of the above
Euclidean distance measure is can also defined as ?
The process of finding a solution for a problem simply by enumerating all possible solutions according to some predefined order and then testing them
The distance between two points as calculated using the Pythagoras theorem
A stage of the KDD process in which new data is added to the existing selection.
All of the above
Which one of the following correctly defines the term cluster?
Group of similar objects that differ significantly from other objects
Symbolic representation of facts or ideas from which information can potentially be extracted
Operations on a database to transform or simplify data in order to prepare it for a machine-learning algorithm
All of the above
Which of the following statement is true about the classification?
It is a measure of accuracy
It is a subdivision of a set
It is the task of assigning a classification
None of the above
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