This workflow defines a fully automated web based application that will label your data using active learning. The workflow was designed for business analysts to easily go through documents to be labeled in any number of classes. In each iteration the user labels more documents and the model is trained using the already labeled instances. With every new iteration, the model proposes the most uncertain documents using the entropy scorer node. Once the user is happy with the performance achieved with the available labels, they can exit the loop and export the model to label the remaining instances.
Thank you for creating this workflow, I had been searching for how to do this interactive learning. I am getting stuck between steps 2 and 3: after labelling some data, I have to press the button ‘Next’ - however, I do not see one. Is this bacause I do not have Knime Server installed? I am just using the free personal version of Knime.
Thanks
Mike
I just found this very useful workflow that can help to avoid massive work on classifying my documents. I also recognized the issue with the NEXT-Button and the hint, to solve the problem with the REFRESH-Widget. I managed to tailor the workflow for my demands and after a first round of labeling the initial results look promising.
However: I can not convince the Workflow to correctly use the labeling results from the first round within a following cycle. I tried a lot placing the refresh-widget at varying places within the relevant labeling component. I also tried various variants in clicking loop step execution, pausing the loop end, clicking refres-widget within the labeling gui and so forth.
So here my kind request: Can somebody please please provide the workflow (.knwf) with the refresh-widget correctly positioned and also with a simple description on how to step by step lead through some cycles of guided labeling. I really need this help and your support is heavily appreciated. Thanks in advance … Michael, fascinated by what is possible with knime workflows
Thanks to @ScottF and @kniem for updates on this question. I have tried out the new workflows and indeed it is more clearly stated that these will only properly work with Web Portal (Knime Server). Without the latter tech, just with desktop Knime, you can try out the first iteration, to see what it is all about, but you cannot go through subsequent iterations (there is no ‘Next’ button visible… unless you have Portal/Server). For those of us without Portal/Server, the idea to use the Refresh widget is intriguing, but it sounds like @kniem has exhausted its possibilities without success. Hopefully someone might yet succeed there and let us know. Thanks again, Mick
