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Retour à Machine Learning: Clustering & Retrieval

Avis et commentaires pour d'étudiants pour Machine Learning: Clustering & Retrieval par Université de Washington

4.6
étoiles
2,200 évaluations
378 avis

À propos du cours

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....

Meilleurs avis

JM
16 janv. 2017

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.

BK
24 août 2016

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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76 - 100 sur 366 Avis pour Machine Learning: Clustering & Retrieval

par Shaowei P

8 août 2016

very good course but the last few topics could be improved with better assignments that could be broken down into smaller sub assignments

par Jared C

7 août 2016

Exceptional course! This is challenging material for me, but it's presented in such a coherent manner that you can't help but absorb it.

par Saqib N S

4 déc. 2016

The course dived into basic and advanced concepts of unsupervised learning. As before, Prof Fox did a great job at explaining things.

par Yao X

29 sept. 2019

Wish to have more detail on implementing the algorithm. Assignments are too easy for understanding the knowledge behind the scene.

par Songxiang L

4 déc. 2016

Very good, not only learn many good ML concepts, but also polish my python programming skill a lot. Thank you, Emily and Carlos.

par Dongliang Z

22 mars 2018

I enjoyed this course. This specialization is very good for machine learning beginner. Look forward to the next course anyway.

par Целых А Н

7 juin 2020

Find the course useful. The authors presented a simple and clear visualization of the meaning of algorithms. Excellent!

Thanks!

par Robert C

16 févr. 2018

Emily was fantastic at explaining difficult to understand concepts. Thoroughly enjoyed the course, and learned quite a lot.

par Kuntal G

3 nov. 2016

Very Good in depth explanation and hand-on lab machine learning course. very focused on real world analytics and algorithms

par Arun K P

27 oct. 2018

Very useful and informative .It help and provide confidence to the job more effectively. Thanks for the help and good cour

par José M T

14 avr. 2017

The teachers are really amazing. They do not just explain it as if they read a book. They explain the concepts very well

par Vikash S N

3 févr. 2019

It was great but I was also interested to implement the solutions with pyspark...though I did it eventually. Thank you!

par Marc G

21 oct. 2017

Clear and well designed course. The assignments are quite thorough. Sometimes, quiz question are not so clear though.

par Andrey N

12 mars 2017

Some themes are shown very superficially it would be great to go deeper. Despite of this the course is great!

Thanks.

par Rohan K

22 mars 2018

Good introduction to very complicated concepts. I now have the tools to learn more about HHMs and anomaly detection.

par Justin K

17 août 2016

An interesting topic, presented well by the instructor and reinforced by intermediate-level programming assignments.

par Somu P

17 nov. 2018

Excellent course, which gives you all you need to learn about machine learning. Concepts and hands on practical ex

par Freeze F

26 oct. 2016

From LDA onwards the pace ramped up ! Please be slow during advance topics. But altogether it was a great course.

par Fahad S

3 nov. 2018

Emily ross is an amazing instructor. The course introduces many complex topics and presents them intuitively.

par Patrick M

8 août 2016

Excellent course. Nice selection of algorithms reviewed - all clearly explained with sample implementations.

par Jorge L

26 mai 2017

I'm a grad student and I can notice the instructor makes a difference in this course. I fully recommend it.

par ADONGDONG

7 mai 2017

very good! strongly recommend to people who want to start a career on data science or are interested in it

par Cristian A G F

30 déc. 2020

In general, all of the courses were awesome because of the methodology used by the professors. Thank you!

par Prasant K S

20 déc. 2016

It is explained in simple and lucid language by expert Emily and codes illustrated by Carlos. Go for it.

par João S

7 août 2016

Great course. Well packed, well explained, nice practical examples, good all around MOOC with of info.