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Splitting a dataset
To train any machine learning model irrespective what type of dataset is being used you have to split the dataset into training data and testing data. So, let us look into how it can be done? Here I…
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How to Select a Data Splitting Method
Separating the data that you have available is an important task to train and evaluate your models effectively. Here I discuss the different data separation techniques in scikit-learn, choosing a…
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Avoid Data Leakage — Split Your Data Before Processing
Data leakage refers to the accidental sharing of information between training and testing datasets. This sharing of information will give the model a ‘heads-up’ about the testing dataset and generate…...
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Data splitting technique to fit any Machine Learning Model
Ethically, it is suggested to divide your dataset into three parts to avoid overfitting and model selection bias called - Training set (Has to be the largest set), Cross-Validation set or Development ...
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Why NOT to select features before splitting your data
Picture this: A Stanford Ph.D. student was trying to predict the occurrence of a rare heart disease using gene data. The student collected more than 100,000 gene expression data (predictors) for 50…
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Splitting your data to fit any machine learning model
After you have performed data cleaning, data visualizations, and learned details about your data it is time to fit the first machine learning model into it. Today I want to share with you a few very…
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Data Extraction
The applications of machine learning and deep learning models are emerging every day and a paramount question arises for a beginner: “From where to start?” As a newcomer in Data Science field, mind…
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Splitting Strings
You can split a String on a particular delimiting character or a Regular Expression , you can use the String.split() method that has the following signature: public String[] split(String regex) Note t...
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Data wrangling
First of all, you have to get your data! This can involve extricating the data you want from a larger dataset. It can involve merging two or more datasets. A dog isn’t just for Christmas, it’s for…
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Splitting your data: growing beyond train_test_split
Properly splitting the data for your machine learning project is crucial for its success. You want to train the model with as much data as possible, but also make sure that it has not simply learned…
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Data Wrangling Solutions— Splitting Column with Each Cell Containing List of Values
During the data preparation stage of an analytics project, a common challenge is to have a list of values in a table’s column. Typically, in a scenario like this, an analyst would like to split it…
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Splitting the dataset into three sets
In this article, we will mainly focus on why do we need to split the dataset into three sets. If so, how do we do it?. All these days you have been blindly splitting the data into two sets. Let me…
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Why and How do we Split the Dataset?
Why and How do we split the Dataset? Dataset is one important part of the machine learning project. Without data, machine learning is just the machine, and learning is stripped from the title. Which ...
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String Partitioning
How many partitions do you think there are? There are two, and they are ‘s’, and “tringpartitioning”. you see, all of the line segments created from same characters in the string overlap, except “s”…
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How To Split The Data Effectively for Your Data Science Project
Data is one of the most important resources for any data science project. But what good is abundant data if you can’t use it effectively… Continue reading on Towards AI
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Training on batch: how to split data effectively?
Creating data batches for model training evaluated in context of loading data using python generators, HDF5 files and numpy using a sound processing machine-learning model as an example.
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Segment data based on some criteria using Python
We often have requirements where we need to divide and segregate the data in order to do data analysis on it, python cut() and qcut() functions provides us to do that easily with one line command…
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How to Split and Sample a Dataset in BigQuery Using SQL
Easily segment your data into training, validation, and test sets. Photo by Zac Porter on Unsplash Why split our dataset? Splitting data means that we will divide it into subsets. For data science mo...
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Shaping Your Data with SQL
Improve & optimize your data analytical process with different techniques for data shaping Continue reading on Towards Data Science
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— Read IFF chunked data
chunk — Read IFF chunked data Source code: Lib/chunk.py This module provides an interface for reading files that use EA IFF 85 chunks. 1 This format is used in at least the Audio Interchange File For...
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How to Split Shapefiles
Sometimes you only want part of a shapefile. Depending on what part, and the shapefile source, this can be super simple, or less so. For example, the other week, I was mapping the US states’ relative…...
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Partitioning in SQL Databases —
Data partitioning in SQL databases is a design technique in which large tables are divided into smaller components called partitions. Each partition in the table acts as a separate data unit within th...
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Data Aggregation and Group Operations
Categorizing a dataset and applying a function to each group, whether an aggregation or transformation, can be a critical component of a data analysis workflow. After loading, merging, and preparing a...
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