callback

问题 The following code runs a Sequential Keras model, pretty straight forward , on the MNIST data that are packaged with Keras. In running the following piece of code I get an exception. The code is readily reproducible. import tensorflow as tf class myCallback(tf.keras.callbacks.Callback): def on_epoch_end(self, epoch, logs={}): if(logs.get('acc')>0.99): print("\nReached 99% accuracy so cancelling training!") self.model.stop_training = True mnist = tf.keras.datasets.mnist (x_train, y_train),(x

问题 Is it possible to set model.loss in a callback without re-compiling model.compile(...) after (since then the optimizer states are reset), and just recompiling model.loss , like for example: class NewCallback(Callback): def __init__(self): super(NewCallback,self).__init__() def on_epoch_end(self, epoch, logs={}): self.model.loss=[loss_wrapper(t_change, current_epoch=epoch)] self.model.compile_only_loss() # is there a version or hack of # model.compile(...) like this? To expand more with

问题 Is it possible to set model.loss in a callback without re-compiling model.compile(...) after (since then the optimizer states are reset), and just recompiling model.loss , like for example: class NewCallback(Callback): def __init__(self): super(NewCallback,self).__init__() def on_epoch_end(self, epoch, logs={}): self.model.loss=[loss_wrapper(t_change, current_epoch=epoch)] self.model.compile_only_loss() # is there a version or hack of # model.compile(...) like this? To expand more with

问题 the following snippet returns the result as 'null' on sequential code flow. I understand coroutines could be a viable solution to handle the callback asynchronously. fun getUserProperty(path: String): String? { var result: String? = null database.child(KEY_USERS).child(getUid()).child(path) .addListenerForSingleValueEvent(object : ValueEventListener { override fun onCancelled(error: DatabaseError) { Log.e(TAG, "error: $error") } override fun onDataChange(snapshot: DataSnapshot) { Log.w(TAG,

问题 I'm sending a link button throught a Telegram bot and I would like to get the callback_data after the user opens the url. My options are: var options = { parse_mode: "Markdown", reply_markup: { inline_keyboard: btns } }; where btns is [ [{ text: "Read first", url: "http://any", callback_data: "any_relevant_data }] ] The button shows perfectly, the link works, but no callback is triggered and I never hit bot.on('callback_query', (callback_message) => { //any action }); Is this a missing

问题 After creating a FastText model using Gensim, I want to load it but am running into errors seemingly related to callbacks. The code used to create the model is TRAIN_EPOCHS = 30 WINDOW = 5 MIN_COUNT = 50 DIMS = 256 vocab_model = gensim.models.FastText(sentences=model_input, size=DIMS, window=WINDOW, iter=TRAIN_EPOCHS, workers=6, min_count=MIN_COUNT, callbacks=[EpochSaver("./ftchkpts/")]) vocab_model.save('ft_256_min_50_model_30eps') and the callback EpochSaver is defined as from gensim.models

问题 After creating a FastText model using Gensim, I want to load it but am running into errors seemingly related to callbacks. The code used to create the model is TRAIN_EPOCHS = 30 WINDOW = 5 MIN_COUNT = 50 DIMS = 256 vocab_model = gensim.models.FastText(sentences=model_input, size=DIMS, window=WINDOW, iter=TRAIN_EPOCHS, workers=6, min_count=MIN_COUNT, callbacks=[EpochSaver("./ftchkpts/")]) vocab_model.save('ft_256_min_50_model_30eps') and the callback EpochSaver is defined as from gensim.models

问题 After creating a FastText model using Gensim, I want to load it but am running into errors seemingly related to callbacks. The code used to create the model is TRAIN_EPOCHS = 30 WINDOW = 5 MIN_COUNT = 50 DIMS = 256 vocab_model = gensim.models.FastText(sentences=model_input, size=DIMS, window=WINDOW, iter=TRAIN_EPOCHS, workers=6, min_count=MIN_COUNT, callbacks=[EpochSaver("./ftchkpts/")]) vocab_model.save('ft_256_min_50_model_30eps') and the callback EpochSaver is defined as from gensim.models

问题 I want to pass as callback a C++ member function to a C# project. I have other project in C++/CLI and I want to do it through it. So, in unmanaged C++ of my C++/CLI project I have a function object: std::function<void(int)>callback; This function is coming from my C++ project and it works fine, I save it there as example to avoid the previous step. Now, I would like to pass this callback function to my C# project. For this, I create a method in unmanaged C++, pass it to managed C++ and from

问题 How do I get all values of dynamically selected dropdown in a single list? I tried doing callback inside callback with for loop iteration, but unable to get the desired list. The issue with def a_function where callback inside a callback is present. How to get in a single list of multiple dropdowns which is dynamically updated? import dash import dash_core_components as dcc import dash_html_components as html step = html.Div( children=[ "Menu:", dcc.Dropdown(options=[{'label': v, 'value': v}