Chevron Left
返回到 Text Retrieval and Search Engines

学生对 University of Illinois Urbana-Champaign 提供的 Text Retrieval and Search Engines 的评价和反馈

4.5
960 个评分

课程概述

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....

热门审阅

YZ

Aug 23, 2018

I'd appreciate Prof.Zhai's lesson design with robust framework. BUT I really can not accept that the mistake that homework putted in wrong week and STILL NOT FIXED AFTER TWO YEARS!

PE

Sep 16, 2019

This course goes through the basics of text retrieval systems with an appropriate speed. However, the contents are quite out-dated for 2019.

筛选依据:

101 - Text Retrieval and Search Engines 的 125 个评论(共 195 个)

创建者 August F C

Jul 7, 2016

thanks

创建者 Rohit S

Mar 14, 2021

Great

创建者 Артём К

Feb 7, 2025

good

创建者 SENTHIL K S (

May 26, 2021

good

创建者 2K17/CO/75 A P S

Dec 17, 2020

nice

创建者 Dr J K P

May 20, 2020

Nice

创建者 Assoc.Prof., C V T C

May 7, 2020

good

创建者 Sreenidhi H

May 9, 2019

good

创建者 M S

Apr 22, 2018

Good

创建者 Нұрсұлтан У

Feb 6, 2025

збс

创建者 Light W

Aug 2, 2018

Good class, knowledge learned. Below are some problems I personally encountered.

* there are almost no explanations of the quiz/exam answers and some questions in quizzes did not match the course progress. However, before the final quiz, there is a small quiz in advance, you can do small quizzes for unlimited times and it resembles the final quizzes. Maybe the author designed this on purpose for the users to learn by trial and error?

Another way is finish courses of the next week, and then come back to finish the quiz of the previous week.

* some concepts require previous knowledge, otherwise you'll have to Google during the class.

* It might take some time to get used to the speaker's accent for non-English speakers.

* suggest that the instructor could use a touch screen or stylus to illustrate on screen.

* The honor missions are out-dated and requires a lot of de-bugging.

创建者 kefei m

Oct 7, 2020

The course provides a nice framework for the learners. The instructor is very knowledgeable and has covered a very wide range of information regarding text retrieval tasks.

Unfortunately, the lab design is not very good - a bit outdated, if not broken at all. I gave 4 stars because I really hope the course can improve that part.

Tips: The quiz is not necessarily easy, but easy to pass, if that's what you care about. However, the nitty-gritty of this course is better comprehended by implementing it on some tasks. That said, find some guide project and try it on, projects like toy recommendation system, toy search engine, etc.

创建者 GANG L

Dec 21, 2017

The class content layout is excellent, it gives an overall picture about text retrieve and search engine, also point out the direction of further learning. Professor Zhai teaches excellent too. In lecture, those simple examples help understanding the algorithm very well.

I just hope Professor Zhai can provide more wide or deep class on such topic.

The only drawback is the program assignment is not well maintained. Almost no staff answer questions.

创建者 Michael P

Oct 21, 2020

I'm withholding one star mainly because the MeTA programming assignments need to be rewritten. MeTA has undergone a major revision change since this course was created and much of the code provided by the instructors no longer works/compiles against MeTA. Judging from the forum discussions, many students are struggling to get the coding assignments working. Otherwise the lectures and the reading materials were good.

创建者 Eric Y

Dec 11, 2017

Excellent lecture material with many very interesting concepts. Instructor clearly talks about topics and why they're important. -1 star due to: content being on quizzes before being covered in lecture, compilation errors in the programming assignments, errors in submitting programming assignments, and lack of instructor support/feedback on the discussion forms.

创建者 Michael V

Jul 15, 2016

The course is interesting and you can learn a lot. The professor is very knowledgeable in the area of search engines. However the course goes very early into mathematical details without too much context. The programming assignments are great and I would focus more on them as they really show you how the engine works.

创建者 Gary T

Sep 12, 2022

The course was detailed and covered at the level I was expecting and hoping for. I would have liked for the transcript of the video to have been proofread more carefully, as I depended on it a LOT. There were many [INAUDIBLE]s and wrongly-transcribed words. Otherwise, this was a worthwhile course.

创建者 Ayanabha G

Jun 8, 2020

A good start for the NLP aspirants ! But there are some problems need to be addressed. Such as, some quiz problems are given before they've been discussed. Also, I personally felt a bit problem in understanding the English accent of the Professor. Otherwise, a great course, learnt a lot of things !

创建者 Logan V

Jul 14, 2020

Well taught course, although certain topics seemed rushed while others had a long time spent on them. The quizzes were completely messed up though (although I decided not to do the optional programming assignments, based on the discussion forums those have a lot of problems too).

创建者 Ajay K

May 6, 2020

this is a best course if you have interest in information retrieval subject. this course helps me to best understand the concepts of text retrieval. although the field has evolved so much after this course but this course is best for beginners in this field.

创建者 Tim R

Sep 6, 2017

For understanding evaluation of search ranking algorithms, and picking up the ideas behind Learning To Rank, this course is great. The only glitch is that some of the quiz questions ask about material from weeks not yet covered!

创建者 Eduardo V O

Aug 28, 2016

The videos could not be too longer than they actually are. If this change, could be done, the student or user could have more time to dig into the assignments problems and even read more textbooks related to the main topic.

创建者 ShawnX

Mar 28, 2018

I have learned a lot of concepts through this course, but at a shallow level. It is a great introduction course to IR. It can be improved by adding more programming tasks for hands-on exercise

创建者 [email protected]

Jun 26, 2020

I will keep the last star for not using a more cutting edge programming language, e.g. python. MeTa is not really helpful in the business world and that discounts the value of this course.

创建者 Watana P

May 27, 2017

I found that there were a lot of mathematical function in this course. I need to see the examples of how are those functions applied in the real programming which support the business.