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View Code? Open in Web Editor NEWBayesian Networks nodes for KNIME
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learning networks: offer various options to deal with missing observations
normalize per line, not on the whole CPT as today
add a node which computes the probability of each line of a data table
add node to join BN
ensure the "compute proba" node works well with reverse probas
sampling: when grouping, ensure each combination is done only once
Today multithreading generates as many times each combinations as threads
use spliterator instead???
enumerate all possible combinations and the corresponding probabilities
add an option "open after writing" option to writers
augment bn: ugly error when the input table is empty
add node to export BN variable as a table
add an option "overwrite" in writers
read xmlbif: accept xbif extension
add a slashscreen icon
display the sampling method during sampling
exception when sampling: Cannot cast Hashmap.TreeNode ...
Related to a threading issue
https://stackoverflow.com/questions/29967401/strange-hashmap-exception-hashmapnode-cannot-be-cast-to-hashmaptreenode/29971168
yet everything is supposed to be threadsafe... to be checked
polish the doc for sampling
spell check
dialog desc
sampling: do not merge table when only one was generated
make "augment with BN" able to deal with missing values
enable multiple node connection for the add node
implement the alias method for weighted roulette
It is O(1) instead of O(log(n)) implemented today
add visualisation of the BN in the port object
exception when sampling: unable to create a new native thread
Exception in thread "AWT-EventQueue-0" java.lang.OutOfMemoryError: unable to create new native thread
at java.lang.Thread.start0(Native Method)
at java.lang.Thread.start(Thread.java:717)
at org.knime.core.data.container.Buffer$DeleteInBackgroundThread.delete(Buffer.java:2422)
at org.knime.core.data.container.Buffer.clear(Buffer.java:2005)
at org.knime.core.data.container.BufferedContainerTable.clear(BufferedContainerTable.java:275)
at org.knime.core.node.workflow.DataTableSpecView.dispose(DataTableSpecView.java:135)
at org.knime.core.node.workflow.OutPortView$3.runWithContext(OutPortView.java:332)
at org.knime.core.node.workflow.OutPortView$3.run(OutPortView.java:270)
at org.knime.core.node.util.ViewUtils.invokeAndWaitInEDT(ViewUtils.java:136)
at org.knime.core.node.workflow.OutPortView.updateInternal(OutPortView.java:265)
at org.knime.core.node.workflow.OutPortView.dispose(OutPortView.java:397)
at org.knime.core.node.workflow.NodeContainerOutPort$2.run(NodeContainerOutPort.java:229)
at org.knime.core.node.util.ViewUtils$3.run(ViewUtils.java:353)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:74)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:205)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)
learn BN from sample: only keep some warnings
... as processing all of them takes time and anyway, would never be read!
writers: clean excception when the filenameis not provided
add a node to create variables in the BN from a table
properly document all the KNIME nodes
add a summary of the BN for the port object
compare with Weka features in KNIME
ensure the "augment table" works well with reverse proba
error in writer in Net format
wrong probabilities written
fix writing of XMLBIF
learn BN: check the presence of the numeric column
add a node to measure the distance between two BN
export a variable containing the computation time
upgrade to KNIME 4.5
add example Bayesian networks
unclear error when there are not enough inputs in add node
publish into an eclipse repository
make the augment table node quicker
make the Bayesian network specs functional
add a reader of BN for another format
BIF ?
learn bn: remove print
document typical usage
augment node: accept parameter for the inference engine
add a node to write BN in other file formats
create a KNIME node to learn a statistical model and fill in the missing cells
multinomial sampling sometimes does not produces as many lines as expected
upgrade the node to add node with several nodes
Use as parameters a text area in which we can type in
p(toto | x, y)=proba
which would create variable toto with values from column toto, based on columns x and y, and associate with proba from column named proba
The same node would accept multiple variables:
p(a | b, c)=proba
p(b | c) = proba
(does it make sense to have the same in the table ?
add a weight optional column to the learn BN from Sample table
double check Bayesian network work with v4.3
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