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Machine Learning: Clustering & Retrieval に戻る

ワシントン大学(University of Washington) による Machine Learning: Clustering & Retrieval の受講者のレビューおよびフィードバック

4.6
1,840件の評価
316件のレビュー

コースについて

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....

人気のレビュー

BK

Aug 25, 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.

JM

Jan 17, 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.

フィルター:

Machine Learning: Clustering & Retrieval: 301 - 304 / 304 レビュー

by Kripakaran R

Nov 12, 2018

I wish week4 and week5 were better. It felt so rushed, where most of the important things were covered.

by Andreas

Jan 04, 2017

This specialization is delayed for months now - very annoying! Don't give them money!

by Adrien L

Feb 02, 2017

No good without the missing course and capstone projects

by Ken C

Feb 04, 2017

Not happy about course 5 & 6 got cancelled.