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學生對 伊利诺伊大学香槟分校 提供的 文本检索和搜索引擎 的評價和反饋

4.4
514 個評分
111 個審閱

課程概述

Recent years have seen a dramatic growth of natural language text data, including web pages, news articles, scientific literature, emails, enterprise documents, and social media such as blog articles, forum posts, product reviews, and tweets. Text data are unique in that they are usually generated directly by humans rather than a computer system or sensors, and are thus especially valuable for discovering knowledge about people’s opinions and preferences, in addition to many other kinds of knowledge that we encode in text. This course will cover search engine technologies, which play an important role in any data mining applications involving text data for two reasons. First, while the raw data may be large for any particular problem, it is often a relatively small subset of the data that are relevant, and a search engine is an essential tool for quickly discovering a small subset of relevant text data in a large text collection. Second, search engines are needed to help analysts interpret any patterns discovered in the data by allowing them to examine the relevant original text data to make sense of any discovered pattern. You will learn the basic concepts, principles, and the major techniques in text retrieval, which is the underlying science of search engines....

熱門審閱

JH

Sep 21, 2016

Great course for those trying to understand how ro analyse and process text data. It has the right amount of tools to help you understand the basics of information retrieval and search engines.

PM

Aug 29, 2016

A great overview of text retrieval methods. Good coverage of search engines. A longer course will cover search engine better (remember this is a 6 weeker)

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1 - 文本检索和搜索引擎 的 25 個評論(共 112 個)

創建者 Karl S

Jul 30, 2018

Although I was very enthusiastic at the beginning of this course, my enthusiasm was soon replaced by disappointment. There were several reasons for my disappointment: First, it is very difficult to understand Prof. ChengXiang Zhai. This is aggravated by the fact that the subtitles of his videos have not been edited and many of these subtitles do not really make any sense. Furthermore, some of the quizzes check on material that is only covered in the week after the quiz. Second, and more importantly, I was disappointed by the explanations offered by Prof. Zhai. Often, he just drops some technical terms without giving any explanation whatsoever. An example in point is his covering of the Kullback-Leibler divergence. He just dropped the name but did not offer any definition or explanation. Unfortunately, there were many more topics that were only covered in such a name dropping way. In the end, I bought myself the book by Stefan Büttcher and the book by Christopher Manning. These are excellent books that were also recommended by Prof. Zhai. For anybody interested in information retrieval I would actually recommend to go directly to these books instead of taking this course.

創建者 Devender B

Feb 14, 2019

Literally this is a dead course. No one is active from course to assist students. You can't complete assignment 1 if you are not good with c++ and STL 'PERIOD'.

Giving up this course

創建者 Lena H

Mar 11, 2019

help for building a whole picture about the field

創建者 Ashish G

Apr 04, 2019

Sir is Amazing. Reviews saying this course lacks practicals are true. Fact is, you will be able to implement them on your own, as sir explained concepts pretty well. This is by far one of the best courses on coursera, comparable to Mr. Ng's course on ML and DL

創建者 Bilguun B

Dec 11, 2018

One of the best courses I have taken on Coursera. Really liked how the quizzes were structured!

創建者 Ramakrishnan C

Apr 13, 2019

Good one

創建者 Andrey N

Jun 10, 2017

Very clear and to the point about complex concepts

創建者 李元岑

Dec 13, 2016

It's worth to learn!

創建者 Leandro O d N

Oct 03, 2017

Excellent course

創建者 Abe G V T S

Oct 15, 2017

This was just the course I needed! Great introduction to the Information Retrieval!

創建者 Codrin K

May 13, 2018

Excellent course. The only request I would have is to make honors programming assignment technology independent (I would have wanted to do it in R) and to add feedback on incorrect answers in quizzes so you can learn more easily from your istakes.

創建者 Rajesh V

Jul 11, 2016

Love the way the professor introduces the concepts, doesn't overwhelm the student!

創建者 Pankaj M

Aug 29, 2016

A great overview of text retrieval methods. Good coverage of search engines. A longer course will cover search engine better (remember this is a 6 weeker)

創建者 Hardik J J

Jun 26, 2016

This course is complemented with a software and text (not mandatory) and good explanation with diagrams...

創建者 Vidya S

Jun 24, 2017

Very interesting!

創建者 Isaiah M

Jan 08, 2018

A well put together course, very rigorous and in-depth...

創建者 Dawn A

May 08, 2018

Arguably the best resource for learning about key concepts of text retrieval online.

創建者 Maurício S d M

Nov 24, 2016

Very good course, but could have something practical.

創建者 Aigerim

Jul 04, 2018

perfect course

創建者 Yifan N

Nov 15, 2016

great introductory course for IR

創建者 Miriyala S

Apr 23, 2018

Good

創建者 Christopher Z

Aug 26, 2017

Surprise!!!

創建者 Julio C R

May 23, 2016

It is an excellent trending topic!

創建者 xianzhi w

Jul 20, 2016

like it.

創建者 IVAN D S B

Apr 28, 2017

Very well mounted course.

For the majority of the topics explained, focused on techniques, not jut on theory.

Good suplemental lectures listed.