how does class weights Parameter in LibSVM work?
hi, how do the parameter setting for class weights in LibSVM work? e.g. if I have a class that is 2x less or 3xless than my main class, can I simply weight them 2x, or 3x respectively?is it simply that...
View ArticleCleaning up invalid items from a date attribute
I wish to clean up a file obtained by web extraction. It has a date attribute, and occasionally non-date values appear (specifically, they are text) so RapidMiner interprets this as a polynominal...
View ArticleCross Validation
Hello! I made for educational purposes a predictive network in the form of a video lesson from Thomas Ott for stock market price prediction. My question is, after the trained network, when it is cross...
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Text clustering using k-Means and optimizing the amount of clusters
Hello.I have made the attached process for RapidMiner, which will do the following:Take the text from different rows and cluster them by similarity, while also carrying over the unique id number of...
View ArticleCombined Data Search and Integration Project
Hi,I have a dataset where I have 1 row with Band name(Page_ID) and the other row with the message about them!So,I took 1 Band Name by Filter Examples and now I want to compare their messages with the...
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Raspberry Pi installation
Hi...anyone ever attempted installing RM Studio (or Server) on a Raspberry Pi? I can see a lot of IoT applications if you can get ML into that kind of form factor...I have one in mind for my house....
View ArticleLoop Files Operator / K-NN
Goodmorning everyone! In the process attached, how could I replace the "retrive" block with the block "Loop files"?
View Articlehow to send process to 64 bit server from 32 bit studio ? thanks.
Greeting, how can I send process to 64 bit server (64 bit win 10) from 32 bit studio (32 bit xp) ? I can connect to server with web but studio can not link to server .Can I used 64 bit studio (on...
View ArticleTrouble with Linear Regression and Split Validation
I keep getting the error on my apply model part of the process. How do I make the attributes match?
View ArticleHow to get the latest 100 samples for mysql? thanks
Greeting, I want to find the latest 100 samples from mysql, so I set a auto increase key number and wish to get the subset with "operator: filter with range",but can not get the max of this attribute,...
View ArticleFiltering the Rows which are Non-English Names
Dear All,We are having a requirment to filterout the rows containing names in other langauges - We need to filter names which are in English.We tried with Regular Expressions in Filter Examples But we...
View Articledifference of values
OK I know there is an easy way to do this but cannot get my brain around it. If I have an attribute that contains integers in ascending order but they are not sequential, how do I create a new...
View Article'Filter Examples' does not update Metadata
I am using the Aylien API for Sentiment Analysis. It classifies text as positive, negative or neutral. For the sake of a training example, I am filtering out the neutral answers in order to leave...
View Articleweird GUI bugs emerging
Hi...seeing all sorts of weird GUI bugs today with RM 7.4. Here's a video screencapture of me trying to see the parameters for a few operators. All work fine except Generate Macro (5). Huh? Also...
View ArticleImport HDF5 files with 7.4
I'm a new user and want to import an HDF5 file, but the hdf5 extension in the market place is incompatable with 7.4.Are there any other solutions?Are previous versions of RapidMiner available. This...
View ArticleHow to convert a database dataset to item set dataset
Hi I want to convert my database to item set form. For example assume table:Tid Item 1 1 1 2 2 1 2 3 I want it changes to: Tid Item1 Item2 Item3 1...
View ArticleMoving the .Rapidminer folder
Hi, The .Rapidminer folder is by default located in my user directory. Since I have limited space within that directory, I would like to move it to another drive. Can you tell me, how I can move this...
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K-NN
Good morning everybody. I'm an Italian Student and i have a problem with my process. How can I solve it? I'm desperated.. I attached my dataset. Have a good day, best regards, Damian<?xml...
View ArticleText Mining: Document Clustering of JSON files
Hi everyone, as I am really new at RapidMiner, I have big difficulties on clustering documents.The idea is to import about 1350 documents (.txt) that are wiritten in JSON format, to convert them into...
View ArticleExtract cluster centroids and compare with other centroids?
hi,I want to do clustering with k-means e.g with k= 3...20 on 2 datasets, and I want to extract the centroids from those clusters and compare the centroids from dataset 1 with the centroids from...
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