# Galaxy Zoo - The Galaxy Challenge — Data

来源：https://www.kaggle.com/competitions/galaxy-zoo-the-galaxy-challenge/data

本地 Meta Kaggle 快照；不是本次实时页面。

# Dataset Description

<ul>
<li><strong>images_training:</strong> JPG images of 61578 galaxies. Files are named according to their GalaxyId.</li>
<li><strong>solutions_training:</strong> Probability distributions for the classifications for each of the training images.</li>
<li><strong>images_test: </strong>JPG images of 79975 galaxies. Files are name according to their GalaxyId. You will provide probabilities for each of these images. </li>
<li><strong>all_ones_benchmark:</strong> Sample submission file corresponding to the All Ones Benchmark</li>
<li><strong>all_zeros_benchmark:</strong> Sample submission file corresponding to the All Zeros Benchmark</li>
<li><strong>central_pixel_benchmark:</strong> Simple benchmark that clusters training galaxies according to the color in the center of the image and then assigns the associated probability values to like-colored images in the test set.</li>
</ul>
<p><span style="font-size: 1em; line-height: 1.5em;">The first column in each solution is labeled GalaxyID; this is a randomly-generated ID that only allows you to match the probability distributions with the images. The next 37 columns are all floating point numbers between 0 and 1 inclusive. These represent the morphology (or shape) of the galaxy in 37 different categories as identified by crowdsourced volunteer classifications as part of the Galaxy Zoo 2 project. These morphologies are related to probabilities for each category; a high number (close to 1) indicates that many users identified this morphology category for the galaxy with a high level of confidence. Low numbers for a category (close to 0) indicate the feature is likely not present. </span></p>
<p><span style="font-size: 1em; line-height: 1.5em;">Visit the <a href="https://www.kaggle.com/c/galaxy-zoo-the-galaxy-challenge/details/the-galaxy-zoo-decision-tree">Galaxy Zoo Decision Tree page</a> for a detailed description of the data.</span></p>