---
title: "Discussion on \"Cross-Validation, Pipelines & Hyperparameter Tuning with Scikit-learn\" | Hashnode"
description: "Discussion on \"Cross-Validation, Pipelines & Hyperparameter Tuning with Scikit-learn\". When building a machine learning model, it's tempting to train it on your data, check the score, and call it done. But that score is misleading — the model has already \"seen\" the data it's being evalu"
url: "https://hashnode.com/posts/cross-validation-pipelines-hyperparameter-tuning-with-scikit-learn/69df6997e41a62132cb65c2d"
---

[Feed](https://hashnode.com/feed) /

Discussion

# [Cross-Validation, Pipelines & Hyperparameter Tuning with Scikit-learn](https://databeginnersfriendlytutorials.hashnode.dev/cross-validation-pipelines-hyperparameter-tuning-with-scikit-learn?utm_source=hashnode&utm_medium=feed)

When building a machine learning model, it's tempting to train it on your data, check the score, and call it done. But that score is misleading — the model has already "seen" the data it's being evalu

Apr 15 · 26 min read · databeginnersfriendlytutorials.hashnode.dev  
Read the article

-   [#machine-learning](https://hashnode.com/tag/machine-learning)
-   [#python](https://hashnode.com/tag/python)
-   [#scikit-learn](https://hashnode.com/tag/scikit-learn)
-   [#data-science](https://hashnode.com/tag/data-science)
-   [#cross-validation](https://hashnode.com/tag/cross-validation)
-   [#router-chain-kernel-bnb-smart-chain-cross-chain-bridges-defi-apps-layer-1-networks-blockchain-security-shared-security-dynamic-validation-networks-multi-chain-ecosystem-cross-chain-transactions-bnb-staking-blockchain-scalability-cross-chain-infrastructure-restaking-bnb-blockchain-interoperability-best-cross-chain-bridge-crypto](https://hashnode.com/tag/router-chain-kernel-bnb-smart-chain-cross-chain-bridges-defi-apps-layer-1-networks-blockchain-security-shared-security-dynamic-validation-networks-multi-chain-ecosystem-cross-chain-transactions-bnb-staking-blockchain-scalability-cross-chain-infrastructure-restaking-bnb-blockchain-interoperability-best-cross-chain-bridge-crypto)
-   [#regularization](https://hashnode.com/tag/regularization)
-   [#lasso-regularization](https://hashnode.com/tag/lasso-regularization)
-   [#hyperparameter-tunning](https://hashnode.com/tag/hyperparameter-tunning)
-   [#feature-engineering](https://hashnode.com/tag/feature-engineering)
-   [#polynomial-features](https://hashnode.com/tag/polynomial-features)
-   [#pipeline](https://hashnode.com/tag/pipeline)
-   [#gridsearchcv](https://hashnode.com/tag/gridsearchcv)

## Written by

[Henry Ha](https://hashnode.com/@henryha)

@henryha · Leeds, UK

  
[View profile](https://hashnode.com/@henryha)

make life simplier

Data Scientist, write about: Tech & Business & Lifeskills

## Responses

Markdown supported · ⌘↵ to post

No responses yet.