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Optimizing Design and Costs for a Second-Stage Power Supply Filter with PSIM & HyperStudy
Working with realistic design challenges is always rewarding, especially when it comes to showcasing the full power of Altair’s solutions. In this new tutorial, we dive deeper into HyperStudy’s advanced optimization capabilities as a sequel to our "Getting Started with PSIM & HyperStudy" tutorial, where we introduced…
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Optimizer Parameter Grid (No result from optimizer)
Some time ago I had used with a similar dataset as today the optimize parameter grid and the results had the effect of improving the performance of the model. The data is reported on patient records. Due to the nature of the data a lot of it is missing, but the optimizer worked. Now that I have modified the dataset I get…
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I would like to inquire about the 'Prescriptive Optimization' operator settings
Referring to the tutorial, I created the process as follows: <?xml version="1.0" encoding="UTF-8"?><process version="10.1.002"> <context> <input/> <output/> <macros/> </context> <operator activated="true" class="process" compatibility="10.1.002" expanded="true" name="Process" origin="GENERATED_TUTORIAL"> <parameter…
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Is optimization possible in a multi-label problem?
For example, there is data with 7 variables, 2 of which are designated as prediction targets (labels), and for convenience, we will call them A and B (real type labels). A and B predictions could be performed without problems using multi-label modeling operators. In addition to this, what I want to do is a multi-label…
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How to use optimize parameter (Grid) for Text Clustering (K-Means)?
i tried using optimize parameter grid module for K Means but its not working. I dont know how to use it properly. i searched online but all i can find is for clasification algorithm.
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How to optimize parameter in linear Regression?
hello!! I create a multiple linear regression model by doing hyperparameter tuning using the operator optimize parameter, but I'm confused about what hyperparameters I should optimize in the rapid miner to avoid overfitting? I hope someone can help me in solving this problem.
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Ignore Deep Learning Errors!
Unfortunately, the Deep Learning module can not send its exception gentle and it fails the entire process, so, I can not use it in Optimize operators like Gird Search, because the entire process will fail by a configuration error! Besides, its errors are not clear and I can't understand how should I solve the problem…
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Optimization Grid with Random Forest - Not Working.
RapidMiner Unicorns 🦄, I trying to run a optimization grid with our my Random Forest model and I am getting an error. It's stating that gain_ratio criterion cannot be used for numeric labels (see pictures below). I checked all my parameters and I am not using gain_ratio in the optimization grid (see pictures below). So,…
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Where this number came from ?
I'm using operator "Optimize by Generation (Evolutionary Aggregation) with Decision Tree. Compared with only Decision Tree, this operator only using 2 atributes and 1 generated atribute, i want to know how this atribute get the number from other 2 atributes This is before using Optimize by Generation (Evolutionary…
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Decision Tree Result not showing
When i run it, it's only showing perfomance vector, attribute weights, and example set, the decision tree result not showing. Before i'm using optimize selection (evolutionary), it worked just fine here my model's screenshot Here inside the optimize selection (evolutionary) Here inside Split Validation here my XML <?xml…
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Optimization
Hello all, I am currently writing my bachelor thesis in the field of 3D printing and the optimization of the process. For this, I would like to generate an evaluation of my Independent Variables (print time and tensile strength) with 5 print parameters (speed, layer height,... ). This includes, for example, an optimization…
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Process freezes in the optimization operator
Hi, My process starts logging the same sentence over and over again. Sometimes this happens at 20% optimization, sometimes at 30% and sometimes at 99%, which is extremely annoying after hours of waiting for it to finish. Here are the log entries: May 7, 2021 12:40:02 PM INFO: H2O: 2% - iter=0 lmb=.0E0 obj=0.6931 imp=.1E1…
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Optimal number of Topics
Dear Community, does RapidMiner offer an alternative measure besides the Perplexity measure to evaluate the optimal number of Topics? Best regards, Fatih
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Performance of individual Gradient Boosted Trees
Dear Community, I have executed the GBT tutorial process and could see that an overall Performance Vector was generated. I assume that the underlying performance values are representative for the sum of the ten GBTs which were generated, right? Is there a possbility to see the performance development of the intermediate…
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How do you generate GA chromosomes when optimizing parameters in Optimize parameters (Evolutionary)?
How do you generate GA chromosomes when optimizing parameters in Optimize parameters (Evolutionary)? I am curious about how GA generates chromosomes in the case of continuous data when parameters are specified as ranges. In case of discontinuity, it is known to be expressed in bit format of 0,1. Can you tell me how it is…
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Storing the Optimize Parameters (Grid)
Hello - This should be a very simple question but I cant find it anywhere. I need to Store the "Optimize Parameters (Grid)" output that you receive when you run that operator - the table where each iteration is listed with every combination of parameters is listed and a final column called "Data Based Performance". This is…
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step by step optimization for multiclass classification
Hello together, I am working on a
multiclass classification with different algorithms (decision tree, KNN, Naïve Bayes,
SVM, NN) and I am trying to optimize my results. I want to do this step by step
so that you can see a process. At first, I only use each algorithm in the cross
validation operator. The next step should be…
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Time Series_Optimize Holt-Winters Model_Wrong Connection
Hi there, I am a beginner with RapidMiner and have run into the following problem. I am using the Holt-Winters model to make predictions from a time series. I started with applying the model to my data. Then I added a forecast validation by creating this process: Inside the Forecast Validation it looks like this: So far so…
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Evaluation of Support Vector Clustering
Hello Community, is there a possibility within RapidMiner to (iteratively) evaluate the parameters of Support Vector Clustering (SVC)? Thank you in advance for your responses! Best regards!
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Number of Clusters for Support Vector Clustering (SVC)
Dear community, I applied the SVC approach based on high dimensional data with the default setting (kernel type: radial) and got only one sole cluster as result. This suprised me a lot. How to set the number of clusters for SVC? In this connection, is there a possibility to evaluate and validate the number of clusters of…
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Performance of the Optimize Selection
Hello, Im currently working on my first Rapid Miner Project, so I'm a total newby. I'm try to get the best performance throug a prediction with a Neural Net, I try to use the Optimize Selection to look for the best Attribute Combination. The Performance, which is given by the Optimize Selection is better then the…
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Cross Distance in a Loop for every row vs. single loading of each excel file
Hello, everyone, I am currently in the process of optimizing processes. We want to calculate the cross distance and are currently cutting a file with 180 lines into 180 individual Excel files. The cutting is done by looping the file. Now we want to re-import this 180 Excel files via a loop and compare them one after the…
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Is there a way to optimize the Cost / Benefit Matrix in Auto Model
Hello everyone, I am relatively new to the field and currently working on a university project. I tried to experiment a bit with the Cost / Benefit Matrix of Auto Model and was able to get more precise models. I am now at the point where I ask myself if there is any way of optimizing the matrix by for example calculating…
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Minimal k for x-Means?
Dear community, my question looks like the following: Does x-means always take the minimal given k as optimum? I tried X-Means between the interval k-min=2 and k-max=60 as well as with k-min=20 and k-max=60 on my data. The x-means model gives me the minimal number of k (in the first time k=2 and in the second time k=20)…
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Ellbow Plot
Dear community, I want to determine or rather apporximate the optimal k for k-means and tried to generate an Ellbow Plot. The generated plot looks like the following which confused me a bit: It is not so easy to detect an optimal k due to the reason that more than one ellbows were generated and the graph doesn't look like…