j48+knn+group model

[Deleted User]

Hi 
would you please tell me how can I show the graph for KNN, J48 and group model?
thank you

rfuentealba

Hi @mbs,

Can confirm:

• Weka W-J48 and Decision Tree are based in the C4.5 algorithm, so @sgenzer is right and I haven't found any differences between both. If you need a visualization of the model, you are better off using the C4.5 Decision Tree there.
• k-NN (Nearest-Neighbor) models (there are many, depending on what measure you use) cannot be put in a chart the same way a Decision Tree can, but if you want to visualize the results, a scatter plot may help.
• Group models, the same, you should use scatter plots to visualize the data, but there is no graphical representation of the model itself.

All the best,

Rodrigo.

varunm1

Hello,

The only model visualization method I can see is by using Ungroup models operator that will show individual models in a group model. 

[Deleted User]

@sgenzer
would you please help me? 

sgenzer

@mbs the W-J48 model, as with all the Weka models, are very dated and do not show very well. I would strongly recommend using the RapidMiner Decision Tree operator rather than the W-J48. You can see here that RapidMiner's Decision Tree model is based on the same C4.5 algorithm as the W-J48. And of course you can inspect the code via GitHub (see that link above) if you need transparency for research purposes, etc...

As for k-NN, I do not know of any way to visualize the models. 

Scott

rfuentealba

Hi @mbs,

Can confirm:

• Weka W-J48 and Decision Tree are based in the C4.5 algorithm, so @sgenzer is right and I haven't found any differences between both. If you need a visualization of the model, you are better off using the C4.5 Decision Tree there.
• k-NN (Nearest-Neighbor) models (there are many, depending on what measure you use) cannot be put in a chart the same way a Decision Tree can, but if you want to visualize the results, a scatter plot may help.
• Group models, the same, you should use scatter plots to visualize the data, but there is no graphical representation of the model itself.

All the best,

Rodrigo.

varunm1

Hello,

The only model visualization method I can see is by using Ungroup models operator that will show individual models in a group model. 

[Deleted User]

hi every body
thank you for your help i will try all of them
mbs