Tensorboard - 向数据点添加多个元数据标签

Posted 2023-03-27

【中文标题】Tensorboard - 向数据点添加多个元数据标签

【英文标题】：Tensorboard - Adding multiple metadata labels to data points

【发布时间】：2018-09-21 13:53:21

【问题描述】：

我创建了一组图像嵌入，并在 TensorBoard 中进行可视化。我还对这些嵌入进行了聚类，并希望将它们的聚类作为元数据附加到这些点上。我目前用于编写元数据的代码如下所示 - 如何为集群添加额外的元数据标签？有可能吗？

names = data_dir_list  # category names

# Create metadata file
metadata_file = open(os.path.join(LOG_DIR, 'metadata_4_classes.tsv'), 'w')
metadata_file.write('Class\tName\n')
k = num_of_samples_each_class  # num of samples in each class
j = 0  # Class counter

for i in range(num_of_samples):
    c = names[y[i]]  # Get sample category

    # if iteration has entered a new class
    if i % k == 0:
        j = j + 1
    metadata_file.write('\t\n'.format(j, c))
    # metadata_file.write('%06d\t%s\n' % (j, c))
metadata_file.close()

features = tf.Variable(feature_vectors, name='features')  # Assign feature vectors to TF variable
with tf.Session() as sess:
    saver = tf.train.Saver([features], save_relative_paths=True)

    sess.run(features.initializer)
    saver.save(sess, os.path.join(LOG_DIR, 'images_4_classes.ckpt'))

    config = projector.ProjectorConfig()
    # One can add multiple embeddings.
    embedding = config.embeddings.add()
    embedding.tensor_name = features.name
    # Link this tensor to its metadata file (e.g. labels).
    embedding.metadata_path = os.path.join(LOG_DIR, 'metadata_4_classes.tsv')
    # Comment out if you don't want sprites
    embedding.sprite.image_path = os.path.join(LOG_DIR, 'sprite_4_classes.png')
    embedding.sprite.single_image_dim.extend([img_data.shape[1], img_data.shape[1]])
    # Saves a config file that TensorBoard will read during startup.
    projector.visualize_embeddings(tf.summary.FileWriter(LOG_DIR), config)

【问题讨论】：

见github.com/tensorflow/tensorboard/issues/61

【参考方案1】：

您可以使用 .tsv 文件。例如：

Word\tFrequency
Airplane\t345
Car\t241
...

Ref