model = tf.keras.Sequential([
tf.keras.layers.Embedding(vocab_size+1, embedding_dim, input_length=maxlen, weights=[embeddings_matrix], trainable=False),
tf.keras.layers.Dropout(0.2 ),
tf.keras.layers.Bidirectional(tf.keras.layers.LSTM(64, return_sequences=True)),
tf.keras.layers.Conv1D(64,5,activation='relu'),
tf.keras.layers.GlobalMaxPooling1D(),
#tf.keras.layers.LSTM(32,dropout=0.2, recurrent_dropout=0.2),
#tf.keras.layers.Dropout(0.25 ),
#tf.keras.layers.LSTM(64),
#tf.keras.layers.Dense(16, input_shape=(32,16,100), activation='relu'),
tf.keras.layers.Dense(16, activation='relu'),
tf.keras.layers.Dense(1, activation='sigmoid')
])
model.compile(loss='binary_crossentropy', optimizer='adam', metrics=['accuracy'])
Error:
Epoch 1/20
UnimplementedError Traceback (most recent call last)
in
5
6 # Train the model and save the training history
----> 7 history = model.fit(train_pad_trunc_seq, train_labels, epochs=20, validation_data=(val_pad_trunc_seq, val_labels))
/opt/conda/lib/python3.8/site-packages/keras/utils/traceback_utils.py in error_handler(*args, **kwargs)
65 except Exception as e: # pylint: disable=broad-except
66 filtered_tb = _process_traceback_frames(e.traceback)
—> 67 raise e.with_traceback(filtered_tb) from None
68 finally:
69 del filtered_tb
/opt/conda/lib/python3.8/site-packages/tensorflow/python/eager/execute.py in quick_execute(op_name, num_outputs, inputs, attrs, ctx, name)
56 try:
57 ctx.ensure_initialized()
—> 58 tensors = pywrap_tfe.TFE_Py_Execute(ctx._handle, device_name, op_name,
59 inputs, attrs, num_outputs)
60 except core._NotOkStatusException as e:
UnimplementedError: Cast string to float is not supported
[[node binary_crossentropy/Cast
(defined at /opt/conda/lib/python3.8/site-packages/keras/losses.py:1797)
]] [Op:__inference_train_function_20181]
Errors may have originated from an input operation.
Input Source operations connected to node binary_crossentropy/Cast:
In[0] ExpandDims (defined at /opt/conda/lib/python3.8/site-packages/keras/engine/compile_utils.py:677)
Operation defined at: (most recent call last)
File “/opt/conda/lib/python3.8/runpy.py”, line 194, in _run_module_as_main
return _run_code(code, main_globals, None,File “/opt/conda/lib/python3.8/runpy.py”, line 87, in _run_code
exec(code, run_globals)File “/opt/conda/lib/python3.8/site-packages/ipykernel_launcher.py”, line 16, in
app.launch_new_instance()File “/opt/conda/lib/python3.8/site-packages/traitlets/config/application.py”, line 845, in launch_instance
app.start()File “/opt/conda/lib/python3.8/site-packages/ipykernel/kernelapp.py”, line 612, in start
self.io_loop.start()File “/opt/conda/lib/python3.8/site-packages/tornado/platform/asyncio.py”, line 199, in start
self.asyncio_loop.run_forever()File “/opt/conda/lib/python3.8/asyncio/base_events.py”, line 570, in run_forever
self._run_once()File “/opt/conda/lib/python3.8/asyncio/base_events.py”, line 1859, in _run_once
handle._run()File “/opt/conda/lib/python3.8/asyncio/events.py”, line 81, in _run
self._context.run(self._callback, *self._args)File “/opt/conda/lib/python3.8/site-packages/tornado/ioloop.py”, line 688, in
lambda f: self._run_callback(functools.partial(callback, future))File “/opt/conda/lib/python3.8/site-packages/tornado/ioloop.py”, line 741, in _run_callback
ret = callback()File “/opt/conda/lib/python3.8/site-packages/tornado/gen.py”, line 814, in inner
self.ctx_run(self.run)File “/opt/conda/lib/python3.8/site-packages/tornado/gen.py”, line 775, in run
yielded = self.gen.send(value)File “/opt/conda/lib/python3.8/site-packages/ipykernel/kernelbase.py”, line 374, in dispatch_queue
yield self.process_one()File “/opt/conda/lib/python3.8/site-packages/tornado/gen.py”, line 250, in wrapper
runner = Runner(ctx_run, result, future, yielded)File “/opt/conda/lib/python3.8/site-packages/tornado/gen.py”, line 741, in init
self.ctx_run(self.run)File “/opt/conda/lib/python3.8/site-packages/tornado/gen.py”, line 775, in run
yielded = self.gen.send(value)File “/opt/conda/lib/python3.8/site-packages/ipykernel/kernelbase.py”, line 358, in process_one
yield gen.maybe_future(dispatch(*args))File “/opt/conda/lib/python3.8/site-packages/tornado/gen.py”, line 234, in wrapper
yielded = ctx_run(next, result)File “/opt/conda/lib/python3.8/site-packages/ipykernel/kernelbase.py”, line 261, in dispatch_shell
yield gen.maybe_future(handler(stream, idents, msg))File “/opt/conda/lib/python3.8/site-packages/tornado/gen.py”, line 234, in wrapper
yielded = ctx_run(next, result)File “/opt/conda/lib/python3.8/site-packages/ipykernel/kernelbase.py”, line 536, in execute_request
self.do_execute(File “/opt/conda/lib/python3.8/site-packages/tornado/gen.py”, line 234, in wrapper
yielded = ctx_run(next, result)File “/opt/conda/lib/python3.8/site-packages/ipykernel/ipkernel.py”, line 302, in do_execute
res = shell.run_cell(code, store_history=store_history, silent=silent)File “/opt/conda/lib/python3.8/site-packages/ipykernel/zmqshell.py”, line 539, in run_cell
return super(ZMQInteractiveShell, self).run_cell(*args, **kwargs)File “/opt/conda/lib/python3.8/site-packages/IPython/core/interactiveshell.py”, line 2894, in run_cell
result = self._run_cell(File “/opt/conda/lib/python3.8/site-packages/IPython/core/interactiveshell.py”, line 2940, in _run_cell
return runner(coro)File “/opt/conda/lib/python3.8/site-packages/IPython/core/async_helpers.py”, line 68, in _pseudo_sync_runner
coro.send(None)File “/opt/conda/lib/python3.8/site-packages/IPython/core/interactiveshell.py”, line 3165, in run_cell_async
has_raised = await self.run_ast_nodes(code_ast.body, cell_name,File “/opt/conda/lib/python3.8/site-packages/IPython/core/interactiveshell.py”, line 3357, in run_ast_nodes
if (await self.run_code(code, result, async_=asy)):File “/opt/conda/lib/python3.8/site-packages/IPython/core/interactiveshell.py”, line 3437, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)