Volver a Machine Learning: Regression

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Case Study - Predicting Housing Prices
In our first case study, predicting house prices, you will create models that predict a continuous value (price) from input features (square footage, number of bedrooms and bathrooms,...). This is just one of the many places where regression can be applied. Other applications range from predicting health outcomes in medicine, stock prices in finance, and power usage in high-performance computing, to analyzing which regulators are important for gene expression.
In this course, you will explore regularized linear regression models for the task of prediction and feature selection. You will be able to handle very large sets of features and select between models of various complexity. You will also analyze the impact of aspects of your data -- such as outliers -- on your selected models and predictions. To fit these models, you will implement optimization algorithms that scale to large datasets.
Learning Outcomes: By the end of this course, you will be able to:
-Describe the input and output of a regression model.
-Compare and contrast bias and variance when modeling data.
-Estimate model parameters using optimization algorithms.
-Tune parameters with cross validation.
-Analyze the performance of the model.
-Describe the notion of sparsity and how LASSO leads to sparse solutions.
-Deploy methods to select between models.
-Exploit the model to form predictions.
-Build a regression model to predict prices using a housing dataset.
-Implement these techniques in Python....

KM

4 de may. de 2020

Excellent professor. Fundamentals and math are provided as well. Very good notebooks for the assignments...itâ€™s just that turicreate library that caused some issues, however the course deserves a 5/5

PD

16 de mar. de 2016

I really enjoyed all the concepts and implementations I did along this course....except during the Lasso module. I found this module harder than the others but very interesting as well. Great course!

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por Tim J

â€¢19 de ene. de 2016

An excellent overview of regression techniques in Machine Learning, with a very well thought-out balance between explaining concepts, providing enough maths to support the concepts (even with some optional "deep dive" lessons). For those interested in the really technical details, I think this course is an excellent start to get a grip on the concepts before diving into formal proofs. Highly recommended.

por Thomas H

â€¢11 de dic. de 2015

Really enjoyed the course - I did well, but this is really in-depth material. I feel like it would be really difficult to implement an ML regression algorithm from scratch in a job material.

I would like to see more interactivity in the lectures (short-quizzes interspersed in the videos) in addition to the long programming assignments at the end of the course.

-Thomas

por Ramesh S

â€¢1 de may. de 2018

Ridge regression could have been explained better. The best explanation was for kNN; perhaps this could have been the first module; since it is so disjointed from the others anyway.

The main reason I am rating this lower than 5 is because the notebooks for the assignments were only Graphlab based. Please do consider also giving notebooks that use pandas/numpy only.

por Andrew T

â€¢12 de ene. de 2016

This was much more in-depth than the intro course in the sequence, which was exactly what I was hoping for.

I still think that it could stand to be more challenging. Perhaps the instructors might offer some optional, more challenging exercises. Or, maybe students could choose an alternate "challenge version" of the homework that contains fewer hints.

por Danielle S

â€¢21 de dic. de 2015

Wonderful lectures and good assignments. Very, very clear presentations.

Minor drawbacks: there's no assistance available for the assignments (which can be quite difficult). The quizzes require sometimes information that is not directly available in the video lectures.

Note that it takes more hrs per week than mentioned (but it's worthwhile!).

por Marco A

â€¢2 de sep. de 2017

It is interesting to understand how the gradient descent and other optimization algorithms works but it took al lot of time. In my opinion, that time could be used with another examples and practicals applications and even programming practical algorithms. After all, the course is very good produced! I will recommend it! Congratulations!

por Miguel C

â€¢6 de sep. de 2017

Better than the first one, however I feel that some material was missing and that the last week was rushed. It is sad the don't talk about XGBoost and other recent algorithms for regression (Elasticnet and so on). I also think they should only focus on using Numpy/Scipy instead of closed source software they recommend.

por Himanshu S J

â€¢4 de may. de 2020

It was a great learning, concepts are explained in so simple manner. Thank you.

On the exercise, i think it would be better to test concept than the actual result value as different people uses different python packages and sometime result may differ slightly which make it difficult to pass. Overall simply Great!

por K S

â€¢1 de mar. de 2016

Good introduction to linear regression. The quizzes are moderately difficult, and can be somewhat time consuming. There is a lot of depth to this topic, and tho this course touches on a lot of it, it won't be enough to get a very thorough understanding. In general I'm really glad I took this course

por Owen M

â€¢22 de feb. de 2016

The course was mostly well taught, and having the two programming assignments each week was useful. One so you could learn the technique, and another so you could learn the underlying algorithm. Some of the topics were occasionally light and too fast on the detail, but overall a very good course.

por Tarek M s

â€¢24 de dic. de 2017

This course is better than the previous one is this specialization the video lectures very good and topics but programming assignments looks to designed to use sframe and graphlab so it has some problems but this time there is better supporting for sklearn and pandas so i recommend this course

por Carin N

â€¢5 de jun. de 2019

The courses get better and have more assistance for those of us who can't / didn't use graph lab. It is still outdated as python 3 came out after the course was created. But did learn a lot of stuff. Module 4 was the most frustrating as you'll get the wrong answers if you use pandas/sklearn.

por Matthew G

â€¢30 de oct. de 2016

Good course that covers the intuitions and goes a bit deeper with the implementation. Main down point is the fact that they try to get you to use graph frames and the alternative pandas route is often a bit of an afterthought, occasionally leading to trouble/confusion with certain quizzes.

por Howard M

â€¢12 de jun. de 2018

The course dealt with implementing the key regression algorithms from scratch as well as tuning the hyper parameters using cross validation and observing what the pros and cons of each algorithm was.The course explained the maths/stats knowledge well and I would recommend it.

por Patrick A

â€¢24 de may. de 2020

Once again, what a simple way of presenting concepts of gradient descent, coordinate descent. One thing to improve however would be to present the results of the quizzes when they're validated, will all the right answers, along with explanations. Thanks once more!

por ANIMESH M

â€¢23 de jul. de 2020

Amazing course uncovers all the abstraction behind Regression . Presented all the mathematical algorithms in such a convenient manner that results in efficient coding. Provided Notebooks are very well designed and presented every coding method in an easy manner.

por Nicolas S

â€¢2 de ene. de 2020

The videos are great, well-structured and introduce gradually the complexity. Unfortunately, the exercises requires the use of a specific library, instead of scikit-learn and numpy. Furthermore, they also required Python 2, while Python 3 is now widely used.

por Dilip K

â€¢12 de nov. de 2016

Excellent course overall. Only issue was the inaccurate instructions for those using sklearn instead of graphlab (with graphlab it's very easy to do, but a bit painful for those like me who like to write a program instead of doing in interactive mode only).

por Maryam A A

â€¢28 de feb. de 2019

The design of the course and presentations are great. It was very useful for my career development and fun. But, I think that the material is outdated and need a major update, especially Python packages and codes. Also, the forums are not active anymore.

por Andrew M

â€¢8 de ene. de 2016

Some of the quizes and assignments had grading issues but I thought the curriculum was great. All of the optimization techniques learned to solve for regressions seem like they could be useful in other areas of machine learning and other applications.

por Ihor F

â€¢30 de dic. de 2015

In the end of the course it became a bit boring to work with the same dataset over and over again. But I learned a lot about such algorithms as LASSO, Ridge regression. I guess that overall there's a good balance between math, theory and practice.

por Ryan S

â€¢4 de abr. de 2016

Excellent lectures, evenly paced and nicely balanced between theory and practice, and mostly great quizzes and practice problems. However, the complete lack of instructor participation in the forums leaves many student questions unanswered.

por johnflem@hotmail.com

â€¢2 de jul. de 2020

Like all coursera courses, inadequate guidance in notebooks to prepare for tests. No feedback or guidance on instructions when you get stuck (e.g, write this function to do thie following, no way to help figure out how!)

por Mansoor A B

â€¢6 de mar. de 2016

The course was very helpful. It would have been better if the tutors explained how they have arrived at some values they used like initial weights, tolerance, threshold etc.., so that the learning is comprehensive.

por Sai N M

â€¢12 de oct. de 2016

The course was excellent. It helped me understand the basic concepts of regression. This course helps us think why and when a model needs to be used which I think is more important in the current day of big data.

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