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Part 26-Support Vector Machines Regression 

Pedram Jahangiry
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3 окт 2024

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Комментарии : 33   
@bernardmartinelli268
@bernardmartinelli268 2 года назад
Thanks for the informative, structural video. As always, the colors help for attention and the graphics help to understand conceptually.
@pedramjahangiry
@pedramjahangiry 2 года назад
Thanks again for your feedback Bernard. Much appreciate it!
@foodfrenzy4021
@foodfrenzy4021 6 месяцев назад
Fell in love with your explanation. Thank you so much sir🙏🏻
@pedramjahangiry
@pedramjahangiry 6 месяцев назад
You are most welcome!
@majidgholami9201
@majidgholami9201 2 года назад
Well explained! Great attention to the details. Thanks!
@amardeepsingh9001
@amardeepsingh9001 2 года назад
Beautifully explained!
@saqibineurope
@saqibineurope 2 года назад
Thank you
@gowithme99
@gowithme99 2 года назад
thank you so much, this mean a lot with me
@joseomardavalosramirez6380
@joseomardavalosramirez6380 Год назад
you are the MAN
@Kurtmind
@Kurtmind 2 года назад
Great video, very well explained. At 3:33 , can you please explain why maximizing the margin is equivalent to minimizing the weights?
@pedramjahangiry
@pedramjahangiry 2 года назад
Great question Nelson. You may find your answer in part 25: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-0OLR3If-qS0.html @2:54
@nightingale180
@nightingale180 2 года назад
Thankx it was informative , but I wanna know even when the hyperplanes are non-linear ,how is it able to predict discrete values??
@pedramjahangiry
@pedramjahangiry 2 года назад
Sheetal, by predicting discrete values, do you mean classification (different categories) or regression (the target variable that can take discrete values only)?
@r0cketRacoon
@r0cketRacoon Месяц назад
is SVM good for regression, i mean in general compared to KNN, Random Forest, XGBoost?
@pedramjahangiry
@pedramjahangiry Месяц назад
of course it depend on the dimension of features and patterns in data. but, "generaly speaking", I would rank them like this: Xgboost> random forest> SVR > KNN
@travel.tales.official
@travel.tales.official Год назад
Well explained. And great presentation. Do you mind what tools did you use for the drawings? Did you do it on iPad?
@pedramjahangiry
@pedramjahangiry Год назад
It’s a simple PowerPoint on a surface pro!
@teukughufran7496
@teukughufran7496 2 года назад
what kind of applications can we use to apply the svm with various kernels?
@pedramjahangiry
@pedramjahangiry 2 года назад
Teuku, it all depends on the nature of the data! for example if your data has a linear structure, then the linear kernel should suffice. However, it is not always obvious what the data structure is so in practice, you should apply multiple kernels and see which one preforms better.
@datascience1274
@datascience1274 2 года назад
Hello, thanks a lot for this lesson. I really enjoyed it! One question. What software would you suggest me to use for statistical analysis among gretl, jasp jamovi? My background is in economics, but I theoretically covered quite a lot of the machine learning topics, and some deep learning. What is the most powerful free software around that doesn't need coding? Thanks a lot
@pedramjahangiry
@pedramjahangiry 2 года назад
I have not used any of them specifically. I would say use Python for your ML and DL projects!
@datascience1274
@datascience1274 2 года назад
@@pedramjahangiry thank you for the answer. I will try
@Ash-bc8vw
@Ash-bc8vw 2 года назад
Amazing Video! I learned so much from your videos. Thank you so much for making these Videos. What's the best way to check the model performance for SVR? For example we use MSE score for linear regression. But I don't think it will apply to SVR as it uses a different loss function. I read somewhere MAE is a good option for SVR can you shed some light on this please?
@pedramjahangiry
@pedramjahangiry 2 года назад
Excellent point Ash. In SVR, we use "epsilon-insensitive" loss function which is (kind of) v-shape and for that matter you should use MAE. However, as you may notice at 10:15, depending on what norm we use to penalize slack variables (L1 or L2) we can use either MAE or MSE respectively.
@Ash-bc8vw
@Ash-bc8vw 2 года назад
@@pedramjahangiry for a simple SVR model from sklearn with rbf kernel, which penalty is used L1 or L2? It's quite confusing as documentation those refer to 2 loss function but doesn't clearly specify which is used when
@pedramjahangiry
@pedramjahangiry 2 года назад
@@Ash-bc8vw as stated in the sklearn documentation (scikit-learn.org/stable/modules/generated/sklearn.svm.SVR.html), "the penalty is a squared L2 penalty".
@Ash-bc8vw
@Ash-bc8vw 2 года назад
@@pedramjahangiry thank you very much!
@hasantalib6254
@hasantalib6254 Год назад
Sir Pedram thank you a lot for the informative video, I would like to ask you, how can I apply SVR with the panel data regression model by using R language?? your answer is to grant me a lot of help...,thank you in advance
@pedramjahangiry
@pedramjahangiry Год назад
Hasan, I don't do machine/deep learning with R but I encourage you to ask the same question from ChatGPT. there are tons of good tutorials out there. Let me know if you couldn't find one.
@mabescuan
@mabescuan Год назад
Sir, can you make video to explain the implementation of svr based on time data series manually? I mean not using software like python. Many tutorial I have ever seen is only explain the concept but not explain the implementation
@pedramjahangiry
@pedramjahangiry Год назад
Idris, for time series everything should be the same. for example in univariate time series, just assume y = p_t and X=P_(t-1). If you are asking for manual calculations, I haven't done it myself. But will put in in my to do list. thanks for your feedback.
@diabl2master
@diabl2master 8 месяцев назад
Soooo much cleaner to write -ε
@pedramjahangiry
@pedramjahangiry 8 месяцев назад
Absolutely, it's indeed a matter of choice. The notation you mentioned, -ε
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