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Combining TWITTER (live feed) with WEKA operators within RapidMinder
Hi folks - I'm a newbie and must be treated as nearly a moron with regards with this stuff. .. :)QUESTION: I have just been ok'd for a new live Twitter feed and need some serious hand holding on how to link it up and get it working with the WEKA operators within RapidMinder. Help anyone? Happy Sunday - thanks, Richard*…
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X-Cobweb problem
Hi, Can somebody help to understand why the X-Cobweb algorithm won´t work just like it does in Weka? I´m trying to cluster the classic zoo.arff data set. In Weka works fine but in RapidMiner it shows each instance in a separate cluster. Thanks in advance
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community edition
I teach data science at my uni. For a GUI based approach I have used Weka. If I go with RapidMiner Community version what limitations are there and will my students be able to have more than a year's access? Of course Weka is free always. What limitations are there on the community version of Rapidminer?
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Different results while running a EM clustering process on RapidMiner and weka
I am running the EM clustering for the same data using rapidminer and weka for the same parameters. But I found a different result. Here is my process, data, and result. Why this happens does anyone explain? Thanks in advance. rapidminer result Cluster 0: 1108 items
Cluster 1: 0 items
Cluster 2: 0 items
Total number of…
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clustering in weka
can you tell me how to perform epsilon,minPoint in weka ??
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W-M5P
Hello everyone, I am using the W-M5P from the weka extension to get a model tree and be able to extract rules. However, I always get only one rule (shown in the screenshot) and also I don't get the graph of the tree at all unlike with the rapidminer regression tree or random forest. It would be great if anyone could help…
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Difference between normal decision tree with information gain criterion and W-J48
Hi. Have a good day everyone! I want to ask a question 1st question What is the difference between a) normal decision tree with information gain criterion and b) W-J48? Im quite confused with the difference. Why dont we just use the basic decision tree and choose 'Information gain' for the criterion instead of using W-J48?…
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Difference between normal decision tree with information gain criterion and W-J48
Hi. Have a good day everyone! I want to ask a question :smiley: 1st question What is the difference between a) normal decision tree with information gain criterion and b) W-J48? Im quite confused with the difference. Why dont we just use the basic decision tree and choose 'Information gain' for the criterion instead of…
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Fractions number in J48 results
Hi! I want to ask. I tried to use WJ48 Decision Tree to predict the crime's place. However in my J48 results, it produce weird fractions like this at the end of every line. Could please somebody explain what is the meaning of the fractions? Tqsm! Have a nice day
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Weka Extension Missing PAA and SAX Time Series Filter Package?
Hello RM Community, I am new to RM, but also an average use with Weka. I have installed the Weka Extension in my RM Studio build; however, when I looked through the available filters, I could not find PAA or SAX. I was hoping to use RM as a more stable solution over Weka, given it is advertised that the RM Weka Extension…
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Weka Extension W-Logistic Regression Operator - Weka Results tab doesn't produce any output ???
Hi Weka Extension W-Logistic Regression Operator - Weka Results tab doesn't produce any output ??? Description Tab works fine provides the Logistic Regression Coefficients and Odds Ratios for the Coefficients but Weka Results Tab doesn't produce any result I demonstrate this using the North Textbook Data Mining for Masses…
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"weka operator does not appear when it has installed weka extension"
please help me, i have installed the latest version of rapidminer, version 8. i also have installed weka extension. but i did not find weka operator. how to bring it up?
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Comparing Rapidminer decision tree and Weka's
Hi everybody Can someone please explain how Rapidminer decision tree operator is different from J48 (or W-J48) decision tree in Weka? The accuracy I get from the latter is considerably higher. Weka's documentation clearly mentioned that J48 is based on C4.5 algorithm. How about Rapidminer's? If they are the same why do…
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Extension Weka - Predictive - W-BayesNet (TAN): problem in export WekaResult model
Hi. So, I have a data set that I used to construct my TAN model. Now that I have the model I want it to be applied in the scoring of another data set with missing models. The problem is that I need to store the model (Weka result) and I can´t. I used the "write PMML" operator and it gives me an error message: "The class…
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"Using Weka models with Model Management extension"
Hi...anyone having trouble using the Weka models (e.g. W-J48) with the Model Management extension? I tried to use two models to compare (Decision Tree and W-J48) and it did NOT like it. Scott
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Weka Random forest constantly better than Random Forest Rapidminer
hi, I teste W-RAndom Forest and Random Forest from Rapidminer on the same dataset, for W-RF, I got around 89%, whereas for Random Forest I got only 76%, why is that? I thought the Algorithm / Method is the same? Are the implementations so entirely different that I get such a performance discrepancy?
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Creating weka_results, please wait ...
Hi everyone Whenever I create a model using Weka operators available through Weka extension, I'm not able to see the model itself. So I connect the model port to the results port and after the process is done, there are to tabs, one is called 'description' and the other is 'weka results' which is supposed to show the…
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"Running Logistic Regression (Weka) for the Yes Class"
When I run a logistic regression (weka) sometime I get the "wrong" equation. Instead of running the regression for the positive class ("yes"), RM or Weka run it for the negative class. Is there a way of forcing RM or Weka to use the "yes" class. See example below. I know that it doesn't make any difference for predictions.…
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[SOLVED] Cannot retreive stored Weka model: java.io.InvalidClassException
Hi all, probably after java update 17 December, Retrieving Stored Weka model (Random Forest) crashes with error: SEVERE: Process failed: Cannot retrieve repository data from entry '...'. Reason: Cannot load data from 'C:\...': java.io.InvalidClassException: weka.classifiers.trees.RandomForest; local class incompatible:…
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"Could you give me large dataset for apriori in weka?"
Dear everyone I need large dataset > 100.000 record for comparison between improved apriori althorithm and class apriori althorithm in weka. Thanks so much
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"Is it possible to convert from rapidminer exampleset into weka instances ?"
Hi, i don't know that this question make sense for you or not but i like some functionality from weka and need to use them in my rapid miner project. You can say its 30% of my task which i want to do in weka and 70% in Rapidminer. I need to convert from RapidMiner example set into weka instances perform some operations on…
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"reading weka model (CannotResolveClassException: m_Objects)"
I trained a model (simple CART, it's the weka one), saved it in a file and created second process to apply the model. Pretty standard scenario. Applying model works fine in RM GUI, but when I'm trying to use it in Java, I'm getting, during reading the model from file, such error:Feb 10, 2014 1:52:22 AM…
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"How to use my own algorithms programmed in Weka with Rapid Miner"
Hi everybody! I am pretty new with Rapid Miner, I have been working few years in Weka so I have got a great algorithms library programmed in it. I want to use this library in Rapid Miner, I have installed a Weka extension but I don't know how add my own algorithms into it. Thank you very much for replies. Regards
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"BayesNet Weka parameters"
Hi, I need to pass Weka parameters to the BayesNet operator but they are ignored. For example, I am introducing the following in the Q parameter: weka.classifiers.bayes.net.search.local.K2 -- -P 2 but the number of parents is always 1. The same parameters introduced in Weka Explorer works fine. Another issue is that…
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"Saving weka model [Solved]"
What is the best way to save weka models for further use? I have tried "store" and "write model" components without any success Thank you.