Hi,
I'm
writting you because I need some help with a problem.
I'm
trying to RapidMiner Studio using a keras
model, wants to run a Process .I have a
java.lang.NullPointerException.
I
don't know why is this happening .
Here
it's the XML log:
<?xml
version="1.0" encoding="UTF-8"?><process
version="9.7.002">
<context>
<input/>
<output/>
<macros/>
</context>
<operator
activated="true" class="process"
compatibility="9.7.002" expanded="true"
name="Process">
<parameter
key="logverbosity" value="init"/>
<parameter
key="random_seed" value="2001"/>
<parameter
key="send_mail" value="never"/>
<parameter
key="notification_email" value=""/>
<parameter
key="process_duration_for_mail" value="30"/>
<parameter
key="encoding" value="SYSTEM"/>
<process
expanded="true">
<operator
activated="true" class="retrieve"
compatibility="9.7.002" expanded="true"
height="68" name="Retrieve Iris" width="90"
x="45" y="238">
<parameter
key="repository_entry" value="//Samples/data/Iris"/>
</operator>
<operator
activated="true" class="split_data"
compatibility="9.7.002" expanded="true"
height="103" name="Split Data" width="90"
x="246" y="238">
<enumeration
key="partitions">
<parameter
key="ratio" value="0.8"/>
<parameter
key="ratio" value="0.2"/>
</enumeration>
<parameter
key="sampling_type" value="automatic"/>
<parameter
key="use_local_random_seed" value="false"/>
<parameter
key="local_random_seed" value="1992"/>
</operator>
<operator
activated="true" class="keras:sequential"
compatibility="1.0.003" expanded="true"
height="166" name="Keras Model" width="90"
x="514" y="85">
<parameter
key="input shape" value="(4,)"/>
<parameter
key="loss" value="categorical_crossentropy"/>
<parameter
key="optimizer" value="Adam"/>
<parameter
key="learning rate" value="0.01"/>
<parameter
key="momentum" value="0.0"/>
<parameter
key="rho" value="0.9"/>
<parameter
key="beta 1" value="0.999"/>
<parameter
key="beta 2" value="0.999"/>
<parameter
key="epsilon" value="1.0E-8"/>
<parameter
key="decay" value="0.0"/>
<parameter
key="schedule decay" value="0.004"/>
<parameter
key="Nesterov" value="false"/>
<parameter
key="use metric" value="false"/>
<enumeration
key="metric"/>
<parameter
key="epochs" value="1"/>
<parameter
key="batch size" value="32"/>
<enumeration
key="callbacks"/>
<parameter
key="verbose" value="1"/>
<parameter
key="validation split" value="0.0"/>
<parameter
key="shuffle" value="false"/>
<parameter
key="fix seed" value="false"/>
<parameter
key="random seed" value="0"/>
<process
expanded="true">
<operator
activated="true" class="keras:core_layer"
compatibility="1.0.003" expanded="true"
height="82" name="Add Core Layer" width="90"
x="246" y="136">
<parameter
key="layer_type" value="Dense"/>
<parameter
key="no_units" value="4"/>
<parameter
key="activation_function" value="'relu'"/>
<parameter
key="use_bias" value="true"/>
<parameter
key="kernel_initializer"
value="glorot_uniform(seed=None)"/>
<parameter
key="bias_initializer" value="Zeros()"/>
<parameter
key="kernel_regularizer" value="None"/>
<parameter
key="bias_regularizer" value="None"/>
<parameter
key="activity_regularizer" value="None"/>
<parameter
key="kernel_constraint" value="None"/>
<parameter
key="bias_constraint" value="None"/>
<parameter
key="rate" value="0.1"/>
<parameter
key="noise_shape" value="None"/>
<parameter
key="seed" value="None"/>
<parameter
key="target_shape" value=""/>
<parameter
key="dims" value="1.1"/>
<parameter
key="repetition_factor" value="1"/>
<parameter
key="function" value="None"/>
<parameter
key="l1" value="0.0"/>
<parameter
key="l2" value="0.0"/>
<parameter
key="mask_value" value="0.0"/>
</operator>
<operator
activated="true" class="keras:core_layer"
compatibility="1.0.003" expanded="true"
height="82" name="Add Core Layer (2)" width="90"
x="581" y="136">
<parameter
key="layer_type" value="Dense"/>
<parameter
key="no_units" value="3"/>
<parameter
key="activation_function" value="'softmax'"/>
<parameter
key="use_bias" value="true"/>
<parameter
key="kernel_initializer"
value="glorot_uniform(seed=None)"/>
<parameter
key="bias_initializer" value="Zeros()"/>
<parameter
key="kernel_regularizer" value="None"/>
<parameter
key="bias_regularizer" value="None"/>
<parameter
key="activity_regularizer" value="None"/>
<parameter
key="kernel_constraint" value="None"/>
<parameter
key="bias_constraint" value="None"/>
<parameter
key="rate" value="0.1"/>
<parameter
key="noise_shape" value="None"/>
<parameter
key="seed" value="None"/>
<parameter
key="target_shape" value=""/>
<parameter
key="dims" value="1.1"/>
<parameter
key="repetition_factor" value="1"/>
<parameter
key="function" value="None"/>
<parameter
key="l1" value="0.0"/>
<parameter
key="l2" value="0.0"/>
<parameter
key="mask_value" value="0.0"/>
</operator>
<connect
from_op="Add Core Layer" from_port="layers 1"
to_op="Add Core Layer (2)" to_port="layers"/>
<connect
from_op="Add Core Layer (2)" from_port="layers 1"
to_port="layers 1"/>
<portSpacing
port="sink_layers 1" spacing="0"/>
<portSpacing
port="sink_layers 2" spacing="0"/>
</process>
</operator>
<operator
activated="true" class="keras:apply"
compatibility="1.0.003" expanded="true"
height="82" name="Apply Keras Model" width="90"
x="715" y="238">
<parameter
key="batch_size" value="32"/>
<parameter
key="verbose" value="0"/>
</operator>
<connect
from_op="Retrieve Iris" from_port="output"
to_op="Split Data" to_port="example set"/>
<connect
from_op="Split Data" from_port="partition 1"
to_op="Keras Model" to_port="training set"/>
<connect
from_op="Split Data" from_port="partition 2"
to_op="Apply Keras Model" to_port="unlabelled data"/>
<connect
from_op="Keras Model" from_port="model"
to_op="Apply Keras Model" to_port="model"/>
<connect
from_op="Apply Keras Model" from_port="labelled data"
to_port="result 1"/>
<portSpacing
port="source_input 1" spacing="0"/>
<portSpacing
port="sink_result 1" spacing="0"/>
<portSpacing
port="sink_result 2" spacing="0"/>
</process>
</operator>
</process>
And
the log of the problem:
Aug
19, 2020 1:07:13 PM INFO: Process //Local
Repository/processes/iris-keras20200819 starts
Aug
19, 2020 1:07:13 PM SEVERE: Process failed: operator cannot be
executed. Check the log messages...
Aug
19, 2020 1:07:13 PM SEVERE: Here:
Aug
19, 2020 1:07:13 PM SEVERE: Process[1] (Process)
Aug
19, 2020 1:07:13 PM SEVERE: subprocess 'Main Process'
Aug
19, 2020 1:07:13 PM SEVERE: +- Retrieve Iris[1]
(Retrieve)
Aug
19, 2020 1:07:13 PM SEVERE: +- Split Data[1] (Split
Data)
Aug
19, 2020 1:07:13 PM SEVERE: +- Keras Model[1] (Keras
Model)
Aug
19, 2020 1:07:13 PM SEVERE: subprocess 'Executed Process'
Aug
19, 2020 1:07:13 PM SEVERE: | +- Add Core Layer[1]
(Add Core Layer)
Aug
19, 2020 1:07:13 PM SEVERE: ==> | +- Add Core Layer
(2)[1] (Add Core Layer)
Aug
19, 2020 1:07:13 PM SEVERE: +- Apply Keras Model[0]
(Apply Keras Model)
Aug
19, 2020 1:07:13 PM SEVERE: java.lang.NullPointerException
Please
help me!!!
Thanks!!!
