python - Is it necessary to onehot discrete variables in tree models?

Specifically, taking sklearn's GBDT as an example, if the data is all discrete, can it be trained directly? If there is continuity in the data, can it be trained directly?

黄舟 2017-05-18 10:46:59 0  1  869

The pit you were led into by training

It’s my first time posting an article and I’m a little nervous. . . Let me complain about my php pit history. . . Before graduation, I studied dental medicine technology, which was embarrassing. . . Later, during my internship, I worked in a processing factory making porcelain teeth. . . Then I left...

神沐 2018-09-26 17:32:28 0  5  1502

Using TensorFlow to create a logistic regression model training results are nan

In TensorFlow, I want to create a logistic regression model with the following cost function: The screenshot of the data set used is as follows: My code is as follows: {code...} The screenshot of the running result is as follows: As you can see, after iterating twice, we get Both W and b have become...

代言 2017-06-28 09:23:45 0  1  1131

How sklearn trains large-scale data sets - Stack Overflow

Question 1: Now I have more than 400,000 pieces of data. I need to use some kind of machine learning classification algorithm to build a model for this data. The problem I encountered is that the data is too large and cannot be read at once, so I want to ask. What to do with the data? Question 2: Th...

typecho 2017-06-28 09:22:17 0  3  1130

Registration for "The Third Phase of PHP Practical Training Course on PHP Chinese Network" is officially launched!

Dear fans of php Chinese website! Here comes the good news! Registration for your long-awaited "php Chinese website third phase of php online practical training course" is now officially open! Registration QQ: 498668472 (Teacher Zhu), 88526 (Brother Zhu) Course name: "php Chinese webs...

PHPz 2018-07-26 16:30:52 2  10  3177

Here's the template! ! ! !

It was promised that the training would not provide templates, but did you provide them? ? ?

绿豆绿了 2018-02-06 23:02:18 0  2  1326

javascript - autodesk forge viewer multi-model loading model browser problem

After loading multiple models. In the AGGREGATE_SELECTION_CHANGED_EVENT event {code...}, although the model tree in the model browser will change according to the clicked model, when you click on the element in the red box to hide the component, it is still the initially loaded model.

代言 2017-07-05 10:56:47 0  1  1624

"The Fourth Online Training Class Experience Class" starts at 20:00 tonight (2019.1.10), and all four main teachers will appear!

The "Fourth Online Training Class Experience Class" starts at 20:00 tonight, and all four main teachers will appear! Live broadcast experience class arrangement: (1) Time: 20:00 to 22:00 on the evening of January 10, 2019 (2) Arrangement: Based on the four published syllabus, each lecturer...

z老师 2019-01-10 11:01:34 3  2  2061

Questions about the model

Teacher, why didn’t you use a model for this project? Aren’t models more convenient?

Zzz.. 2018-08-15 18:09:26 0  0  1174

Laravel - update model relationship to another model

There is a many-to-many relationship between the event model and the patient model. An incident can involve multiple patients, and a patient can be involved in multiple incidents. If a user creates a copy of a patient model, we want to be able to merge the two patient models into one. This means tha...

P粉674999420 2023-09-01 22:36:33 0  1  513

Why does the model not converge?

Why does the model not converge? Why does the model not converge? Why does the model not converge?

人工智能技术与咨询 2022-09-07 10:22:26 0  1  908

Enhance user model

I'm trying to extend the user model with another table (profile) to get the profile picture, location, etc. Can I override the User model's index() function to do this? Current model code: <?phpnamespaceApp\Models;useIlluminate\Database\Eloquent\Factories\HasFactory;useIlluminate\Foundation\Auth\...

P粉311464935 2024-01-10 17:17:58 0  1  368

If the laravel model does not define a name, it will change the model name to a plural number?

If the name of the table is not defined in Laravel's model, it will automatically query like this. For example, the Student model will search for students. The university model will search for universities. They all become plural automatically. The strange thing is how he still understands the gramm...

黄舟 2017-05-16 16:50:05 0  1  347

model accessor

Judging between 0 and 1 in the status field in the template is not conducive to later maintenance, so we need to use the model's accessor, right?

*ptr 2019-04-13 16:11:10 0  1  1173