Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
342 views
in Technique[技术] by (71.8m points)

python - tf.data.Dataset: how to get the dataset size (number of elements in a epoch)?

Let's say I have defined a dataset in this way:

filename_dataset = tf.data.Dataset.list_files("{}/*.png".format(dataset))

how can I get the number of elements that are inside the dataset (hence, the number of single elements that compose an epoch)?

I know that tf.data.Dataset already knows the dimension of the dataset, because the repeat() method allows repeating the input pipeline for a specified number of epochs. So it must be a way to get this information.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

len(list(dataset)) works in eager mode, although that's obviously not a good general solution.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...