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Questions tagged [knime]

KNIME (Konstanz Information Miner) is a user-friendly graphical workbench for the entire data analysis process.

KNIME is an open-source data analysis software, with various plugins from different areas. It has plugins from text mining to image processing, including the chemical structures and high throughput experiments.

KNIME Desktop is available for Windows, Mac and Linux under GPL v3 (or a custom license).

KNIME stands for Konstanz Information Miner and can be run on a centralized server with an integrated web interface or as standalone Rich Client. The client is based on the Eclipse Platform with the plugin and update mechanism. KNIME also offers job scheduling.

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Choosing between the SVM and the MLP classifier

I have to train a classifier that would be able to discern 6 possible classes of the input samples. I also have a Cost Matrix to estimate the classifier's performance with and without considering the reject option. So far, using the Cross-validation…
HBv6
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KNIME: Saving workflow stuck at Weka Predictor Internals

It's the x-th time that saving my KNIME workflow gets stuck at "Weka Predictor (3.7) - Internals". It is always a Weka node blocking the saving process, eventually I have to force KNIME to quit and lose my changes. My memory status is roughly 900MB…
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How to use linked resources / path variables in KNIME

When working with KNIME for testing and learning, we generally use a folder structure like MyProject/ MyKNIMEWorkspace/ MyKNIMEDataFolder/ on each computer. Everyone is free to write their own workflows, don't have to share them, etc. But…
ATN
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How to configure KNIME/Weka to interact with my own software?

I have this task to bridge an analytics engine(like KNIME/Weka) to a software. However, I am new to KNIME and APIs and most of CSE. Could someone possibly guide me as to how do I bridge the softwares? A brief explaining KNIME APIs would be very…
silent_dev
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KNIME manually modify node settings

I have a wide table filled with ID numbers (starting with a variable number of zeros) and I want to import it into KNIME but the columns are automatically detected as Integer. I tried to manually modify the settings.xml file corresponding to the…
ATN
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NULLPointerException while using KNIME

I am trying to perform some simple text analysis using KNIME. My process begins by using a normal 'XLS reader' or a 'text reader', followed by 'row filter' which executes fine. This step is followed by 'Strings to document' to convert every string…
Patthebug
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REGEX Name and any surname

in the example below, I want to make 2 groups in a regex: Name FirtSurname SecondSurname .. The first group would be Name The second FirtSurname SecondSurname ... ^(\w+)(.*)$ - would capture all \w+ - would make n groups (number of…
Adriano Almeida
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Knime too slow - performance

I just started to use KNIME and it suppose managed a huge mount of data, but isn't, it's slow and often not response. I'll manage more data than that I'm using now, What am I doing wrong?. I set in my configuration file…
xedo
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View plot for Node in KNIME_BATCH_APPLICATION

I have been using KNIME 2.7.4 for running analysis algorithm. I have integrated KNIME with our existing application to run in BATCH mode using the below command. <>\\plugins\\org.eclipse.equinox.launcher_1.2.0.v20110502.jar…
Biks
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Suppressing Applet Alert in a eclipse extension plugin that uses jersey

I have written a REST client plugin for KNIME (a software that is based on eclipse). I have used jersey as library. Everything works fine. However, if I send an client request a APPLET ALERT dialog pops up asking me whether I want to allow, disallow…
user2161098
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How can I get batch physicochemical properties for molecule names?

Normally I use Chemspider webservice client (WSDL) with the help of Knime generic web service clients to convert a list of molecule names into a table containing molecular properties (physicochemical prperties,...). Now, Chemspider has suspended its…
Farbod Shahabi
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Connection to MySQL with SSL (.pem + .key)

I’m trying to connect to an KNIME with a MySQL Database with SSL certificate (.pem) and a private key. Unfortunately I can’t find a way to include both files (.pem + .key) in a node or in the properties. Can anyone help me or has experience with…
Art
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How to integrate custom R/Python code with KNIME?

I am good in R and recently started learning KNIME tool. I have developed multiple custom codes in R and Python. Now I would like to integrate R/Python custom code with KNIME tool. Is this possible to integrate? If so, Please explain me how to…
RSK
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KNIME comparing datasets

Can you please answer:- Since we are using KNIME to run our as per our requirement. In our workflows , we compare customer data in 2 data bases , one oracle and one Hive and then we want report out on how much data is matched and how much is not .…
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Clustering with data visualization

The format of my input file is the following: PERSON1 BUILDING1 PERSON2 BUILDING4 PERSON3 BUILDING4 PERSON5 BUILDING3 PERSON3 BUILDING2 PERSON3 BUILDING1 PERSON5 BUILDING6 PERSON4 BUILDING6 1000 more rows like this Each row should be read like this…
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