ch 5.3 page 140 line 3 使用AdagradOptimizer会有错误

[arisliang]

Traceback (most recent call last):
File "/home/ly/src/tl-play/ch5_word2vec.py", line 134, in
_, loss_val = sess.run([train_op, cost], feed_dict=feed_dict)
File "/home/ly/anaconda3/envs/learning/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 905, in run
run_metadata_ptr)
File "/home/ly/anaconda3/envs/learning/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1137, in _run
feed_dict_tensor, options, run_metadata)
File "/home/ly/anaconda3/envs/learning/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1355, in _do_run
options, run_metadata)
File "/home/ly/anaconda3/envs/learning/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1374, in _do_call
raise type(e)(node_def, op, message)
tensorflow.python.framework.errors_impl.InvalidArgumentError: AttrValue must not have reference type value of float_ref
for attr 'tensor_type'
; NodeDef: word2vec_layer/embeddings/Adagrad/_61 = _Recv[_start_time=0, client_terminated=false, recv_device="/job:localhost/replica:0/task:0/device:CPU:0", send_device="/job:localhost/replica:0/task:0/device:GPU:0", send_device_incarnation=1, tensor_name="edge_480_word2vec_layer/embeddings/Adagrad", tensor_type=DT_FLOAT_REF, _device="/job:localhost/replica:0/task:0/device:CPU:0"](^Adagrad/learning_rate, ^Adagrad/update_word2vec_layer/embeddings/UnsortedSegmentSum, ^Adagrad/update_word2vec_layer/embeddings/Unique); Op<name=_Recv; signature= -> tensor:tensor_type; attr=tensor_type:type; attr=tensor_name:string; attr=send_device:string; attr=send_device_incarnation:int; attr=recv_device:string; attr=client_terminated:bool,default=false; is_stateful=true>
[[Node: word2vec_layer/embeddings/Adagrad/_61 = _Recv[_start_time=0, client_terminated=false, recv_device="/job:localhost/replica:0/task:0/device:CPU:0", send_device="/job:localhost/replica:0/task:0/device:GPU:0", send_device_incarnation=1, tensor_name="edge_480_word2vec_layer/embeddings/Adagrad", tensor_type=DT_FLOAT_REF, _device="/job:localhost/replica:0/task:0/device:CPU:0"](^Adagrad/learning_rate, ^Adagrad/update_word2vec_layer/embeddings/UnsortedSegmentSum, ^Adagrad/update_word2vec_layer/embeddings/Unique)]]

如果换成AdamOptimizer，就没有这个错误.
代码在https://gist.github.com/arisliang/a197b17b6330a86a56e500907dcd07c5
可能是AdagradOptimizer的问题.

[zsdonghao]

用网上的代码跑，没出现错误吧？

[arisliang]

网上的代码(https://github.com/tensorlayer/tensorlayer/blob/master/example/tutorial_word2vec_basic.py) 貌似没有这个错误。不过网上代码有model 1,2,3,4，跟书中的代码不完全一致。

[arisliang]

建议把书中使用的代码放在github上，可以和自己打的代码有直接对照。官方的代码往往有很大区别，不容易比较。