New feature in TensorFlow: Eager execution, operations are executed immediately as they are called from Python

adavidoaiei · noiembrie 1, 2017, 10:21am

In versiunile mai vechi de TensorFlow cand scriem operatiile acestea nu erau executate imediat, toate operatiile fiind executate doar cand rula session.run, acest new feature ne permite sa vedem rezultatele dupa fiecare operatie in parte, ceea ce face debugging si intelegerea flow-ului mult mai usoara, acest feature este experimental dar aduce avantaje reale in procesul de dezvoltare, ceea ce ma face sa cred ca va fi inclus in variantele urmatoare ca feature de baza.

github.com

tensorflow/tensorflow/blob/master/tensorflow/contrib/eager/README.md

# Eager Execution

> *WARNING*: This is a preview/pre-alpha version. The API and performance
> characteristics are subject to change.

Eager execution is an experimental interface to TensorFlow that provides an
imperative programming style (à la [NumPy](http://www.numpy.org)). When you
enable eager execution, TensorFlow operations execute immediately; you do not
execute a pre-constructed graph with
[`Session.run()`](https://www.tensorflow.org/api_docs/python/tf/Session).

For example, consider a simple computation in TensorFlow:

```python
x = tf.placeholder(tf.float32, shape=[1, 1])
m = tf.matmul(x, x)

with tf.Session() as sess:
  print(sess.run(m, feed_dict={x: [[2.]]}))

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adavidoaiei · decembrie 24, 2017, 5:34pm

adavidoaiei · mai 16, 2019, 4:55am

TensorFlow 2.0 este o rescriere completa a framework-ului care exclude Session si include acest feature, TensorFlow 2.0 este un model mult mai simplificat:

https://www.tensorflow.org/alpha/guide/effective_tf2

adavidoaiei · iulie 6, 2019, 4:03am

Tensor Flow 2.0 in beta

adavidoaiei · iulie 11, 2019, 5:39am

Tensor Flow 2.0 se poate testa online am avut niste trouble in ar rula local, desi am incercat de cateva ori, prin platforma lor collaboratory:
https://www.tensorflow.org/beta/tutorials/quickstart/beginner