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Information Retrieval and Web Search Engines Winter Semester 2014/2015

Profr. Dr. Wolf-Tilo Balke and José Pinto

Homework Assignment 5

Exercise 5.1

Explain the Cluster Hypothesis.

Exercise 5.2

Explain what is a dendogram and how to use it when performing hierarchical agglomerative clustering.

Exercise 5.3

Use your own words to explain how k-means works.

Exercise 5.4

Explain the differences between k-means and hierarchical clustering.

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