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Learner Reviews & Feedback for Machine Learning: Clustering & Retrieval by University of Washington

2,346 ratings

About the Course

Case Studies: Finding Similar Documents A reader is interested in a specific news article and you want to find similar articles to recommend. What is the right notion of similarity? Moreover, what if there are millions of other documents? Each time you want to a retrieve a new document, do you need to search through all other documents? How do you group similar documents together? How do you discover new, emerging topics that the documents cover? In this third case study, finding similar documents, you will examine similarity-based algorithms for retrieval. In this course, you will also examine structured representations for describing the documents in the corpus, including clustering and mixed membership models, such as latent Dirichlet allocation (LDA). You will implement expectation maximization (EM) to learn the document clusterings, and see how to scale the methods using MapReduce. Learning Outcomes: By the end of this course, you will be able to: -Create a document retrieval system using k-nearest neighbors. -Identify various similarity metrics for text data. -Reduce computations in k-nearest neighbor search by using KD-trees. -Produce approximate nearest neighbors using locality sensitive hashing. -Compare and contrast supervised and unsupervised learning tasks. -Cluster documents by topic using k-means. -Describe how to parallelize k-means using MapReduce. -Examine probabilistic clustering approaches using mixtures models. -Fit a mixture of Gaussian model using expectation maximization (EM). -Perform mixed membership modeling using latent Dirichlet allocation (LDA). -Describe the steps of a Gibbs sampler and how to use its output to draw inferences. -Compare and contrast initialization techniques for non-convex optimization objectives. -Implement these techniques in Python....

Top reviews


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excellent material! It would be nice, however, to mention some reading material, books or articles, for those interested in the details and the theories behind the concepts presented in the course.


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Excellent course, well thought out lectures and problem sets. The programming assignments offer an appropriate amount of guidance that allows the students to work through the material on their own.

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226 - 250 of 387 Reviews for Machine Learning: Clustering & Retrieval

By Weituo H

Aug 29, 2016

strongly recommended!

By Sukhvir S

Jul 10, 2020

wonderful experience

By Omar S

Jul 12, 2017

I loved this course!

By Itrat R

Jan 22, 2017

Excellent Course!!!


Sep 29, 2020



Jun 16, 2020

most useful course

By Israel C

Aug 15, 2017

Excellent Course!

By Antonio P L

Oct 3, 2016

Excellent course.

By Ji H

Sep 8, 2016

Very good course!

By Igor D

Aug 21, 2016

This was AWESOME!

By zhenyue z

Aug 9, 2016

very nice lecture


Jul 26, 2023

very good course

By Anurag B

Dec 20, 2019

Great Experience

By Xue

Dec 18, 2018

Great but hard~!

By 嵇昊雨

Apr 25, 2017


By Daniel W

Dec 23, 2016

Excellent course

By Sumit

Sep 16, 2016

Excellent course

By Phan T B

Aug 8, 2016

very good course

By Md. K H T

Jul 25, 2020

Awesome Course.


May 20, 2018

Excellent - Goo

By vivek k

May 24, 2017

awesome course!

By Bruno G E

Sep 3, 2016

Simply Amazing!

By Christopher D

Aug 9, 2016

Superb course!

By Jinho L

Sep 19, 2016

Great! thanks

By Sumit K J

Jan 24, 2021

Great Course