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Data Mining Techniques and Applications Quiz

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Data Mining Techniques and Applications Quiz

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Questions and Answers

What is the main focus of sentiment analysis or opinion mining?

Identifying factual information in textual data

Classifying data into different categories based on attributes

Analyzing the structure and grammar of sentences

Understanding the emotions and opinions expressed in text (correct)

How has the Web influenced the need for opinion mining?

By providing a platform for computational study of opinions (correct)

By creating a huge volume of factual information to analyze

By allowing individuals to express opinions only through user-generated media

By enabling businesses to conduct surveys and focus groups online

Why are opinions considered important in the context of decision-making?

Because opinions from friends and family have a significant impact on decisions

Because understanding others' opinions is crucial when making decisions (correct)

Because they allow individuals to express their emotions freely

Because businesses can conduct surveys and focus groups to gather opinions

What type of opinion is the following: 'This camera has better picture quality than that camera'?

Comparative opinion Signup and view all the answers

Which sentiment classification technique is mentioned in the text?

Sentiment determination Signup and view all the answers

What problem does 'tl' represent in the context of sentiment analysis?

Data Extraction Signup and view all the answers

What does the term 'target object' refer to in the context of opinions?

A component or attribute of a product, person, event, or organization Signup and view all the answers

According to Liu, what is the sentiment value of an opinion?

A more granular rating of the opinion's sentiment Signup and view all the answers

In the given text, what does 'feature' represent?

A component or attribute of a target object Signup and view all the answers

How does the text define an opinion?

A quintuple related to the opinion holder's perspective on a target object's feature Signup and view all the answers