title: How to load a percentage of data from huggingface load_dataset
body: <p>I am trying to download the &quot;librispeech_asr&quot; dataset which totals 29GB, but due to limited space in google colab, I'm not able to download/load the dataset i.e. the notebook crashes.</p>
  <p>So I did some research and found the <code>split</code> argument that we can pass in the <code>load_dataset</code> function to download a part of dataset, but it is still downloading the whole 30GB dataset on notebook. The argument <code>split</code> is not working...</p>
  <pre><code>from datasets import load_dataset
  
  dataset = load_dataset(&quot;librispeech_asr&quot;, 'clean', split=['train.360[:50%]', 'validation'])
  </code></pre>
  <p>I was trying to load only 50% of 'train.360' data but I'm unable to do so.</p>
  <p>What is the correct method and what I am doing wrong?</p>