Web Structure Mining MCQs

By: Prof. Dr. Fazal Rehman | Last updated: August 7, 2024

1. What is the primary goal of web structure mining in data mining?
a) To classify websites into predefined categories
b) To extract useful information and knowledge from web content
c) To analyze user behavior on websites
d) To discover patterns and relationships within the hyperlink structure of the web

Answer: d) To discover patterns and relationships within the hyperlink structure of the web

2. Which of the following describes the concept of web structure mining?
a) Extracting text from web pages
b) Analyzing the content of web pages
c) Discovering patterns and relationships within the hyperlink structure of the web
d) Predicting user behavior based on clickstream data

Answer: c) Discovering patterns and relationships within the hyperlink structure of the web

3. Which type of web structure mining focuses on analyzing the topology of the web graph?
a) Preprocessing
b) Content extraction
c) Usage mining
d) Topology mining

Answer: d) Topology mining

4. What is the purpose of link analysis in web structure mining?
a) To classify web pages based on their content
b) To identify the most visited web pages
c) To analyze the relationships between web pages based on their links
d) To extract text from hyperlinks

Answer: c) To analyze the relationships between web pages based on their links

5. Which of the following algorithms is commonly used in web structure mining to determine the importance of web pages?
a) Apriori algorithm
b) PageRank algorithm
c) K-means algorithm
d) Support Vector Machine (SVM)

Answer: b) PageRank algorithm

6. What does the “hub” represent in the HITS (Hyperlink-Induced Topic Search) algorithm used in web structure mining?
a) A highly authoritative web page
b) A cluster of related web pages
c) An irrelevant web page
d) A low-ranking web page

Answer: a) A highly authoritative web page

7. Which of the following is NOT a metric used to evaluate the effectiveness of web structure mining algorithms?
a) Precision and recall
b) Hub and authority scores
c) In-degree and out-degree of nodes
d) Coverage and confidence

Answer: d) Coverage and confidence

8. What is the role of web crawlers in web structure mining?
a) To analyze user behavior on websites
b) To extract and collect data from web pages
c) To optimize website performance
d) To visualize the structure of web pages

Answer: b) To extract and collect data from web pages

9. Which type of graph is commonly used to represent the structure of the web for mining purposes?
a) Directed graph
b) Undirected graph
c) Bipartite graph
d) Weighted graph

Answer: a) Directed graph

10. What is a challenge in web structure mining related to scalability?
a) Handling incomplete and noisy data
b) Optimizing web crawling algorithms
c) Analyzing dynamic and rapidly changing web structures
d) Selecting appropriate evaluation metrics

Answer: c) Analyzing dynamic and rapidly changing web structures

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