Scikit-learn pipelines : how to deal with hyperparameters in a clean way? (pipe and filter pattern with...
![Multi tool use Multi tool use](http://sgv.ssvwv.com/sg/ssvwvcomimagb.png)
Multi tool use
Let's suppose that I have a Pipeline in scikit-learn (pipe and filter pattern).
Now let's suppose that this Pipeline is wrapped in a class of its own and that it has a pre-made list of hyperparameters, or a premade list of hyperparameters grid, as a static class constant. The class stays a pipeline so that it has the .fit
and .transform
(it inherits from the Pipeline object, but at construction, it already knows which pipeline steps to compose).
I now want pipelines of pipelines, so one master pipeline would compose each one. In the end, I want to perform a hyperparameter search, so I'd need the first pipeline to get the hyperparameters of every sub-pipeline and add the string prefix as needed.
So the question is: How to do this (optional: in a clean way)? I feel that I break some Object Oriented Programming (OOP)'s SOLID principles by having to get one massive hyperparameter grid out of each pipeline somehow recursively and to prepend prefixes to params with some __
separators.
Any suggestion will be appreciated. It's obvious that in my thought experiment, something is wrong with the way to share hyperparameters, and I'd like to fix that with. Can you suggest a design pattern or a more usable way to do that?
oop machine-learning design-patterns scikit-learn pipeline
add a comment |
Let's suppose that I have a Pipeline in scikit-learn (pipe and filter pattern).
Now let's suppose that this Pipeline is wrapped in a class of its own and that it has a pre-made list of hyperparameters, or a premade list of hyperparameters grid, as a static class constant. The class stays a pipeline so that it has the .fit
and .transform
(it inherits from the Pipeline object, but at construction, it already knows which pipeline steps to compose).
I now want pipelines of pipelines, so one master pipeline would compose each one. In the end, I want to perform a hyperparameter search, so I'd need the first pipeline to get the hyperparameters of every sub-pipeline and add the string prefix as needed.
So the question is: How to do this (optional: in a clean way)? I feel that I break some Object Oriented Programming (OOP)'s SOLID principles by having to get one massive hyperparameter grid out of each pipeline somehow recursively and to prepend prefixes to params with some __
separators.
Any suggestion will be appreciated. It's obvious that in my thought experiment, something is wrong with the way to share hyperparameters, and I'd like to fix that with. Can you suggest a design pattern or a more usable way to do that?
oop machine-learning design-patterns scikit-learn pipeline
add a comment |
Let's suppose that I have a Pipeline in scikit-learn (pipe and filter pattern).
Now let's suppose that this Pipeline is wrapped in a class of its own and that it has a pre-made list of hyperparameters, or a premade list of hyperparameters grid, as a static class constant. The class stays a pipeline so that it has the .fit
and .transform
(it inherits from the Pipeline object, but at construction, it already knows which pipeline steps to compose).
I now want pipelines of pipelines, so one master pipeline would compose each one. In the end, I want to perform a hyperparameter search, so I'd need the first pipeline to get the hyperparameters of every sub-pipeline and add the string prefix as needed.
So the question is: How to do this (optional: in a clean way)? I feel that I break some Object Oriented Programming (OOP)'s SOLID principles by having to get one massive hyperparameter grid out of each pipeline somehow recursively and to prepend prefixes to params with some __
separators.
Any suggestion will be appreciated. It's obvious that in my thought experiment, something is wrong with the way to share hyperparameters, and I'd like to fix that with. Can you suggest a design pattern or a more usable way to do that?
oop machine-learning design-patterns scikit-learn pipeline
Let's suppose that I have a Pipeline in scikit-learn (pipe and filter pattern).
Now let's suppose that this Pipeline is wrapped in a class of its own and that it has a pre-made list of hyperparameters, or a premade list of hyperparameters grid, as a static class constant. The class stays a pipeline so that it has the .fit
and .transform
(it inherits from the Pipeline object, but at construction, it already knows which pipeline steps to compose).
I now want pipelines of pipelines, so one master pipeline would compose each one. In the end, I want to perform a hyperparameter search, so I'd need the first pipeline to get the hyperparameters of every sub-pipeline and add the string prefix as needed.
So the question is: How to do this (optional: in a clean way)? I feel that I break some Object Oriented Programming (OOP)'s SOLID principles by having to get one massive hyperparameter grid out of each pipeline somehow recursively and to prepend prefixes to params with some __
separators.
Any suggestion will be appreciated. It's obvious that in my thought experiment, something is wrong with the way to share hyperparameters, and I'd like to fix that with. Can you suggest a design pattern or a more usable way to do that?
oop machine-learning design-patterns scikit-learn pipeline
oop machine-learning design-patterns scikit-learn pipeline
asked Dec 29 '18 at 21:00
![](https://i.stack.imgur.com/2f5yb.jpg?s=32&g=1)
![](https://i.stack.imgur.com/2f5yb.jpg?s=32&g=1)
Guillaume ChevalierGuillaume Chevalier
2,76512342
2,76512342
add a comment |
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53973303%2fscikit-learn-pipelines-how-to-deal-with-hyperparameters-in-a-clean-way-pipe%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Stack Overflow!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53973303%2fscikit-learn-pipelines-how-to-deal-with-hyperparameters-in-a-clean-way-pipe%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
RjtMiOiKWdnD,1kVu