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RAPIDMINER FULL LICENSE.
Hello everyone. I have a huge problem with my rapidminer studio. I am working on recommender systems and i have a problem with the set role operator. Everyone on the internet, when uses set role operator, he can write in the target role whatever he wants. I can use only the existed target roles. Thats a huge problem for…
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Collaborative Filtering Item Recommendation how can I create output "item_id" with title name
hi I use Rapidminner for Collaborative Filtering Item Recommendation with user k-nn and the result at "item_id" is number like this so how can I replace Movie Name (title) instead of item_id. I try to use set role operator and set additional roles : attribute 'title' with 'item identification' but output is the same. the…
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why the accuracy and AUC values are so different?
Please help me, Why does the 65% accuracy value get an AUC value of 0.727, while the accuracy of 73.54% get an AUC value of 0.711. what affects both, why higher accuracy has lower AUC? I thank you in advance for your help! Best regards, Dhiii
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ROC
hii, can anyone answer what is the difference between the blue ROC thresold line and the ROC red line on the ROC chart, and what is the meaning of the blue and red shadows behind the blue and red lines? Where did the AUC value of 0.711 come from in the chart below Thank you for your time and help! Best regards, dhiya
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Impute Missing Values for only one attribute using a subset of attributes
Hello everyone! Because I have many missing values in my dataset, I created a KNN model to predict the missing values for one attribute. The model works well so I want to use it to impute the missing values. Unfortunately, the model does not work in the same way when inserted into the impute missing values operator.…
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Impute Missing Values with Regression
Hello, I imputed missing values with the K-NN model and tested the performance. The performance is bad that is why I want to try imputing missing values with linear regression and check the performance too. Is that actually possible? If yes, which operators do I have to use? Thanks in advance!
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Impute Missing Value operator - Performance
Hello there, I replaced some missing values with the operator "Impute Missing Values" using the KNN scheme. I also normalized it and wanted to check the performance and connect the "Performance" operator inside the "Impute Missing Value" operator but the connection doesn't work. Can't I use performance with the "Impute…
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Tell k-NN (and possibly other models) to ignore training data dated past the Unlabeled record's time
I have a large database of news records and their published timestamp. I'm currently experimenting with using k-NN to classify the company's stock behavior by comparing the news to similar cases that have occurred in the past. Naturally, I don't want the model to use any news that has been published AFTER the…
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Different k values in k-NN (i.e. 2, 3, 4, 5,...) produce the same accuracy = 100%
Hello, I'm applying k-NN for a dataset. The weird thing is different k value (i.e. 2, 3, 4, 5, ...) do not impact the accuracy of the model, meaning all produce the same accuracy = 100% . I'm struggling and could not figure if anything wrong with the dataset and/or rpm process. Attached herewith .rpm file, thanks ahead for…
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Predict multiple value based on another value
Hello guys, so, i had this data which represents the contents of soil in x-depth and the data only has limited depth. i tried to make model based on contents of soil in x-depth which going to predict those contents of soil arent shown on the depth. e.g contents of soil in 3 m depths and make this data to predict contents…
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ROC with PCA
I am gonna show a comparison KNN model before and after applying PCA through ROC but get this error, can anyone help me?
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Automodel meanAbsolute rootMeanSquared error and other missing algorithms
Hi, 1) Im trying to find meanAbsolute rootMeanSquared error in Automodel results. But these values are not available in auto model results ? 2) Part, Bayesian Network Algorithm are available in rapidminer ? like weka. 3) Boosting, bagging, KNN Algorithm are available in auto model ? 4) What is deep learning below neural…
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building classifications models using studio
can someone help with step by step procedure for building classifications models using rapid miner studio to start with Decision tree to be followed by other methods
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Predict missing values
Hello all, I have a dataset with about 3000 records of rated songs. About half are rated, the other half is not. I'm trying to build a model that predicts the empty ratings based on what users rated. I have done the following: My question is, is this correct? Do I need to make adjustments to make it more correct? Because…
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How to deal with high cardinality variables on a Regression problem in RapidMiner
Hello, I'm working on a Regression problem with a dataset that looks like: > str(myds) 'data.frame': 841500 obs. of 30 variables: $ score : num 0 0 0 0 0 0 0 0 0 0 ... $ amount_sms_received : int 0 0 0 0 0 0 3 0 0 3 ... $ amount_emails_received : int 3 36 3 12 0 63 9 6 6 3 ... $ distance_from_server : int 17 17 7 7 7 14 10…
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Explanation of KNNClassificationModel.java ?
hi,I know Rapidminer have documentation about the KNN algorithm in the following linkhttps://github.com/rapidminer/rapidminer-studio/blob/master/src/main/java/com/rapidminer/operator/learner/lazy/KNNClassificationModel.java which means the KNN algorithm is also derived from the Java project right ?. can anyone explain the…
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How Rapidminer handle same distance for KNN Algorithm
Maybe I'm rather stupid but I just can't find a satisfying answer: Using the KNN-algorithm, say k=5. Now I try to classify an unknown object by getting its 5 nearest neighbours. What to do, if distance is a lot of the same distance.. if after determining the 4 nearest neighbors, the next 2 (or more) nearest objects have…
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Classification (logistic regression or k-Nearest Neighbors) on a cluster?
I am interested in performing a further classification analysis on a single cluster resulting from a clustering model in RapidMiner, either logistic regression or k-Nearest Neighbors as these are the tools in scope for my assignment that this is for. The cluster I am interested in is Cluster 1. My binary categorical…
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K Nearest for reducing colour pallet used in ML
We are applying ML in creating images, we want to apply ML to the images to try and determine which colour certain customer clusters respond to. The problem is that there are 16 million different colour possibilities when we apply OCR to the final image that is created. Colours in Hex code are encode #000000 or #ffffff…
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Classification Problem
Hi I using the K-NN algorithm to classification.my learning data has 3 dimensions and like this: Learning Data: Username(Polynomial),Count_of_connections(Integer), Destination_IP(Polynomial), Status (as label)Alex, 100, 172.16.1.11,normalAlfred,8,172.16.10.50, anomaly Mat, 200, 172.16.5.1 , normal Angelo, 50, 172.16.4.11,…
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Java error on using k-NN Global Anomaly Detection with missing values
Hi, I am using RM Studio 8.2 and I have a process in which I am using k-NN Global Anomaly Detection to find anomaly scores for a set of data instances that have missing values in some of the attributes. In doing so, I get a Java error message "Process failed. Comparison method violates its general contract!". When I…
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User kNN - NegativeArraySizeException
Hello, I have problem in recommendation system model. When I run my process, it is failed on "User kNN" operator. I got this Exception: Exception: java.lang.NegativeArraySizeException Message: null Stack trace: com.rapidminer.data.Matrix_f.<init>(Matrix_f.java:69)…
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Item Attribute k-NN operator - Documentation/Implementation
Hi All, I have been unable to find any documentation as to how to use the Recommendation Extention operator, "Item Attribute k-NN". Could some please send me to some documentation so that I can use it to develop my recommendation system and also check that it is implementing the methodology that I think it is. Thanks in…
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Hybrid (Item k-NN and Decision Tree) Recommendation System in RapidMiner
Please help us :( We wanted to implement a Recommender System using hybrid approach (Item k-NN CF and Decision Tree;using gini index). The result should show the performane of its algorithm (RMSE, MAE, and NMAE). We already established the recommender system but the result only shows the ranking prediction not its…
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Set a the param (k) for the k-NN operator
Hi, I have a k-NN, and i want to set the parameter k dynamically how can i achieve that ? Thank you !