Verified Components History

This component generates a view to visualize the output of a topic model. You can use it to browse topics, their terms, semantic/exclusivity scores and documents. It can be deployed as a data app on KNIME Business Hub or KNIME Server. To see how to combine it with other nodes and verified components check the Topic Modeling space.

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Category: Visualizations

Authors: Francesco Tuscolano, Application Engineer at KNIME and Paolo Tamagnini, Senior Data Scientist at KNIME

These two twin components can be adopted to train and test a Structural Topic Model (STM) via the KNIME Interactive R Statistics Integration. The component adopts the KNIME Conda Integration to automatically install the environment on the first component execution. To see how to combine it with other nodes and verified components check the Topic Modeling space.

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Category: Text Processing

Authors: Paolo Tamagnini, Senior Data Scientist at KNIME and Francisco Villaroel, Assistant Professor of Marketing at LUISS Guido Carli University

This component is designed for scoring topics at the output of a topic model. The experimental component measures semantic coherence, exclusivity and neighbor distances of one or multiple models. The component is part of KNIME Labs as it is an experimental implementation. To see how to combine it with other nodes and verified components check the Topic Modeling space.

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Category: Text Processing

Authors: Angus Veitch, Data Analytics Consultant at Forest Grove, Francesco Tuscolano, Application Engineer at KNIME and Paolo Tamagnini, Senior Data Scientist at KNIME

This component is based on the AlphaFold Protein Structure Database. The Alphafold AI system predicts a protein's 3D structure from its amino acid sequence. The component uses an existing already trained version of Alphafold to predict the 3D structure.

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Category: Life Sciences

Author: Franziska Rau, Data Science Intern at KNIME

This component flags input molecules upon their skin sensitization potential. The SMARTS expressions, which encode the potential reactive site and the domain/mechanism, are based on the paper from Enoch et al. 2008. Substructure filtering and highlighting of reaction sites are performed by the RDKit Nodes Feature community extension.

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Category: Life Sciences

Author: Alice Krebs, Life Sciences Solution Engineer at KNIME

Five new components can cover the following finance functions: NPV, XNPV, IRR, XIRR and MIRR. Adopt these components to automate spreadsheet operations to track total value, profitability and attractiveness of one or more investment projects with periodic or non-periodic transactions. These components were developed by finance analytics experts at Mydral, formerly nominated KNIME Partner of the Year 2022.

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Category: Financial Analysis

Author: Cristian Rastasanu, Data Analyst at Mydral and Mathieu Rondeau, Head of Marketing & Innovation at Mydral

This component visualizes a flowchart for the current progress/status of an interactively selected process. This is useful when the number of steps in the process is known. This visual can be particularly useful when tracking the deliveries in a supply chain logistics problem, but it can work in any domain. Discover the data app example for this component: interact in a live demo on our public community server and/or inspect the underlying workflow.

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Category: Guided Analytics

Author: Kyle Watkins, Solutions Engineer at KNIME and Paolo Tamagnini, Senior Data Scientist at KNIME

10 components from the Time Series category, also referenced in the Codeless Time Series Analysis book and space, have been updated to use the new Python bundled environment. Now you can adopt SARIMA/ARIMA, Fast Fourier Transform (FFT), and other techniques without having to manually configure any Python or Conda preferences. Drag, drop, configure and execute your time series analysis based on low code Python scripts!

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Category: Time Series

Author: Corey Weisinger, Senior Data Scientist at KNIME

This component is designed to visualize in a flow chart and filter processes. Process mining is a set of techniques adopted to analyze event logs, that is files storing data of the processes and operations happening internally or externally to an organization. Check the data app example featuring the component on procurement data. Besides this component the KNIME Hub also offers nodes from Process Mining Community Extension.

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Category: Visualizations

Author: Ahmad Varasteh, Data Science Intern at KNIME and Paolo Tamagnini, Senior Data Scientist at KNIME

This component adopts the Plotly JavaScript library to visualize small multiples, that is a series of identical charts on different partitions of data. Adopt this technique when visually detecting groups of outliers or simply compare trends in different groups of data points.

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Category: Visualizations

Author: Ahmad Varasteh, Data Science Intern at KNIME

These 4 new components can be adopted to generate data to test either a classification, regression, clustering or multilabel scenario. All components automatically install scikit-learn via the KNIME Python Integration and a few KNIME AP Preferences for Anaconda.

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Category: Data Manipulation

Author: Franciska Rau, Data Science Intern at KNIME

This component performs a (hyper)parameter optimization for any classification model provided at its input given a few settings such as cross validation. To get hands-on examples on the component and the nodes inside check the Parameter Optimization for Classification space.

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Category: Automation

Author: Keerthan Shetty, Data Science Intern at KNIME and Paolo Tamagnini, Data Scientist at KNIME

This component is designed to tag input molecules for violations of the REOS (Rapid Elimination of Swill) rules. Optionally it also checks for structural alerts. For this, several different rule sets are available.

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Category: Life Sciences

Author: Alice Krebs, Life Science Data Scientist at KNIME and Greg Landrum, External Advisor at KNIME

This component uses Google GeoCharts to visualize a choropleth map, that is a geographical map divided in areas, colored with different color intensity. Similarly to the Heatmap node, the color intensity represents a numeric column provided at the input. Unlike the previously published Choropleth World Map verified component, it is able to visualize both countries and provinces in different world continents and regions

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Category: Visualizations

Author: Ahmad Varasteh, Data Science Intern at KNIME

This component uses Google GeoCharts to visualize a dot map, that is a geographical map with markers colored with different size and color intensity. Similarly to the Bubble Chart node, the color intensity and size represent a different numeric column provided at the input. The component is able to visualize latitude and longitude coordinates in different world continents and regions.

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Category: Visualizations

Author: Ahmad Varasteh, Data Science Intern at KNIME

The component generates a view that allows for model re-execution upon user input. This view can be adopted for machine learning testing or deployment purposes. Access the interactive view either locally, on KNIME Analytics Platform, or online in a data app deployed on KNIME Server via the KNIME WebPortal.

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Category: Visualizations

Author: Paolo Tamagnini, Data Scientist at KNIME

This component computes fairness metrics over an input classification model adopting the following metrics: demographic parity, equality of opportunity and equalized odds. Use this component to flag models that might unfairly impact stakeholders following basic responsible AI principles.

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Category: Model Interpretability

Author: Mahantesh Pattadkal, Data Science Intern at KNIME and Paolo Tamagnini, Data Scientist at KNIME

Automatically trains supervised machine learning models for a regression task. It's able to automate the whole ML cycle by performing some data preparation, parameter optimization with cross validation, scoring, evaluation and selection. It also captures the entire end-to-end process and outputs a workflow port object using the KNIME Integrated Deployment Extension. To automatically train models for a classification task, check instead its twin version: the AutoML component.

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Category: Automation

Author: Lada Rudnitckaia, Junior Data Scientist at KNIME and Paolo Tamagnini, Data Scientist at KNIME

This component uses a heuristic approach to analyze the target series and fit a (S)ARIMA model for forecasting with automatically configured hyper-parameters. Auto-SARIMA stands for Automated Seasonal Autoregressive Integrated Moving Average: an automated training of a SARIMA model.

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Category: Time Series

Author: Corey Weisinger, Data Scientist at KNIME

This component is designed to measure time passed between two dates in a financial year. Similarly to the YEARFRAC function on Microsoft Excel, the user can select from 3 different ways of calculating the fractional years.

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Category: Finance Analytics

Author: Ana Vedoveli, Solution Engineer at KNIME

This component is designed to invert signs of numerical columns only for the rows belonging to the selected categories. There are many use cases for this component. For example computing conditional totals or aggregations in finance teams.

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Category: Data Manipulation

Author: Ana Vedoveli, Solution Engineer at KNIME

This visualization can be used to explore the relationship between a numerical column and a categorical column. For each category in the categorical column, a density curve for the distribution of the partitioned numerical column is displayed. The stronger the relationship, the more distinctive the different curves are.

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Category: Visualizations

Author: Lukas Siedentop, Solution Engineer at KNIME

This component allows you to design a header for your data app. The header can include your custom logo, text and colors that are appropriate for your brand and context. It'll appear in the composite view within KNIME Analytics Platform, as well as any data app that has been deployed via KNIME Server.

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Category: Guided Analytics

Author: Janina Mothes, Life Science Data Scientist at KNIME

Once you deploy one or more connected components as a data app, the end user interacts with the front end without necessarily knowing anything about the underlying workflow. Nest the new Data App Flowchart within the deployed data app to provide a visual graphic that illustrates the sequential steps the user must take.

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Category: Guided Analytics

Author: Paolo Tamagnini, Data Scientist at KNIME

This component visualizes in a bar chart values increasing or decreasing over time. Each visual bar represents a different category, racing in range with the others in a smooth animation. The component uses a Generic JavaScript View node where the visualization is implemented via the D3.js library.

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Category: Visualizations

Author: Paolo Tamagnini, Data Scientist at KNIME

This component is designed for generating data from an existing numeric column, for example, to anonymize or increase the size of the training data. The data generation is based on the approximation of the distribution of the original column. The distribution can also be approximated separately for sub-groups in the data to maintain known dependencies between columns. Use its twin version “Synthetic Data Generator (Nominal)” to generate nominal columns instead.

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Category: Data Manipulation

Author: Maarit Widmann, Data Scientist at KNIME

This component is designed for generating data from an existing nominal column, for example, to anonymize or increase the size of the training data. The data generation is based on the frequency distribution of the nominal values in the original column. The frequency distribution can be calculated separately for sub-groups in the data to maintain known dependencies between columns. Use its twin version “Synthetic Data Generator (Numeric)” to generate numeric columns instead.

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Category: Data Manipulation

Author: Maarit Widmann, Data Scientist at KNIME

This component extracts the most relevant English keywords in a corpus (a collection of documents) using three specific techniques: Topic Extraction using LDA, Term Co-Occurrence, Max(TF-IDF) measure. The component can be used also to extract keywords in other languages by adopting beforehand nodes from the KNIME Text Processing and Language Packs extensions.

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Category: Text Processing

Author: Ali Asghar Marvi, Data Scientist Intern at KNIME and Paolo Tamagnini, Data Scientist at KNIME

This component uses a Java based library called BoilerPipe to detect and remove boilerplate text from a web page and only extract the main textual content. This component can be used to analyze online trends and Search Engine Optimization (SEO)by connecting the output with the Keyword Search component, and the input with the Twitter URLs Extractor or the Google URLs Extractor components.

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Category: Text Processing

Author: Ali Asghar Marvi, Data Scientist Intern at KNIME and Paolo Tamagnini, Data Scientist at KNIME

This component is designed for querying tweets via the KNIME Twitter Connectors extension and collecting all the URLs within the text message of each tweet. To discover which are the trends of the linked web pages on Twitter, you can analyze the output via the Web Text Scraper component or other nodes from the KNIME Text Processing extension.

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Category: Automation

Author: Ali Asghar Marvi, Data Scientist Intern at KNIME and Paolo Tamagnini, Data Scientist at KNIME

This component is designed for querying Google results and collecting all the associated URLs via the Google Custom Search API. To discover which are the trends of the web pages in the search results in Google, you can analyze the output via the Web Text Scraper component or other nodes from the KNIME Text Processing extension.

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Category: Automation

Author: Ali Asghar Marvi, Data Scientist Intern at KNIME and Paolo Tamagnini, Data Scientist at KNIME

This component analyzes the quality of a forecast by visualizing different error metrics as the forecast length increases. Use this component to understand how far into the future a model’s forecasts remain reliable.

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Category: Time Series

Author: Corey Weisinger

This Component loads the pickled object that is created by the Verified Component Python Transform and saved via the Python Object Writer node. The output pickled object can be provided to the input of the Verified Component Python Transform (Apply) to apply the same transformations in a new workflow.

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Category: Data Manipulation

Author: Mahantesh Pattadkal

This Component automatically trains supervised machine learning models for both binary and multiclass classification. The Component, initially published in August 2020, has been updated by replacing deprecated nodes and also by adding new ML nodes like the new H2O AutoML Learner. This Component can be used in combination with other Verified Components using the KNIME Integrated Deployment Extension.

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Category: Automation

Author: Paolo Tamagnini and Mahantesh Pattadkal

This component can be used to get detailed information about sources from the News API and map articles from other News API components to the source list. It requires a valid API Key to be able to connect and download results.

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Category: Text Processing

Author: SJ Porter

This component can be used for finding articles related to a specific topic, company, or combination of search terms. The results can be used for text analysis models, business applications, and web scraping projects. The component requires a valid API Key from News API to be able to connect and download results.

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Category: Text Processing

Author: SJ Porter

This component, just like the News API Headlines component, is designed for collecting news search results retrieved from News API, but offers additional settings to perform an advanced search. The component requires a valid API Key to be able to connect and download results.

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Category: Text Processing

Author: SJ Porter

This component allows the user to train a SARIMA (Seasonal ARIMA) model with varying parameters. This type of time series model is more robust than its ARIMA counterpart and is a powerful option when designing forecasts or performing other Time Series Analysis on data with seasonal or cyclic patterns.

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Category: Time Series

Author: Corey Weisinger

This component works in conjunction with the SARIMA Learner to generate forecasts based on the learned model. Simply plug in the SARIMA Learner component and select the number of forecasts to generate.

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Category: Time Series

Author: Corey Weisinger

This simple data transformation, already provided by the Normalizer node and other nodes, was re-implemented via the KNIME Python Integration and stored in this Component in a reliable and reusable way. Use this component to learn how to embed your Python script in a Component for other KNIME users.

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Category: Data Manipulation

Author: Mahantesh Pattadkal

This component can be used in combination with the other Python Transform component to apply the same data transformation on more data via an input Python object. This strategy comes in handy when deploying the Python script on KNIME Server or when simply transforming the test set partition based on the data distribution in the train partition.

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Category: Data Manipulation

Author: Mahantesh Pattadkal

This component computes global feature importance for the provided black-box model and visualizes it via an Interactive View. Feature importance can be computed with four available model-agnostic techniques: three global surrogate models as well as the permutation feature importance. The input model has to be trained in KNIME and captured as a Workflow Object via the KNIME Integrated Deployment Extension.

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Category: Model Interpretability

Author: Lada Rudnitckaia and Paolo Tamagnini

This component generates intuitive and local explanations for each prediction from a binary classification model trained either using the KNIME Deep Learning - Keras Integration or the KNIME Python Integration. To compute the explanation the Python package “alibi” is adopted via a Conda Propagation node.

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Category: Model Interpretability

Author: Mahantesh Pattadkal and Paolo Tamagnini

This component generates an interactive visualization to help the user understand their model’s behavior around an individual data point. It works in two main steps. First by finding nearby counterfactual data points. Then by training a GLM to mimic the input model and provide feature importance values. The component works with any binary or multiclass classifier correctly captured with the KNIME Integrated Deployment Extension.

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Category: Model Interpretability

Author: Corey Weisinger

This component is designed for automated control of overdue invoices. Based on the invoice issue date and payment terms, it calculates the due date, number of days until the due date, and the due status.

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Category: Finance Analysis

Author: Lada Rudnitckaia and Felix Kergl-Räpple

This component is designed for automated reporting of overdue invoices. It automatically sends emails to managers about invoices that require some particular action.

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Category: Finance Analysis

Author: Lada Rudnitckaia and Felix Kergl-Räpple

This component creates an Excel file and writes the input table to the separate sheets of this file so that each sheet contains a subset of the table as defined by the categories in a selected column.

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Category: Finance Analysis

Author: Lada Rudnitckaia and Felix Kergl-Räpple

Once a single classifier model is trained and deployed on KNIME Server it can be monitored from the KNIME WebPortal with this component. When the model, captured with Integrated Deployment, is provided together with past deployment data the component generates a chart with performance over time and a button to trigger the re-training of the model.

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Category: Guided Analytics

Author: Mahantesh Pattadkal and Corey Weisinger

Similar to its twin component “Model Monitor View”, the “Compare” variant can monitor the deployment performance for a classification task from the KNIME WebPortal. The main difference relies on comparing two models' performances over time instead of a single one. This is usually necessary when comparing the original model and its retrained version. A button is available to trigger the deployment of the new model and replace one that is currently deployed.

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Category: Guided Analytics

Author: Mahantesh Pattadkal and Corey Weisinger

Visualizes molecular data using the JavaScript library 3Dmol.js. The component visualizes data types PDB, SDF, or Molfile and also provides an option to select different atom styles. Additionally, the 3D Molecule Viewer can be used in a component with other JavaScript nodes to visualize interactively selected data in the combined view.

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Category: Life Sciences

Author: Janina Mothes

Can be used to draw molecular structures and is intended to replace the MarvinSketch node, which is no longer openly available. It is based on the Molecule Widget node (requires version 4.3), which uses the Ketcher web-based chemical structure editor.

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Category: Life Sciences

Author: Alice Krebs

Determines the effect of genetic variants using Ensembl's Variant Effect Predictor (VEP) via their REST API.

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Category: Life Sciences

Author: Jeanette (Jeany) Prinz

Converts the coordinates between different assembly versions of the human genome. This is done using an endpoint from Ensembl's REST API.

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Category: Life Sciences

Author: Jeanette (Jeany) Prinz

Converts biological sequences (DNA/RNA/Protein) into their one-hot encoded representation. It allows selecting a fitting alphabet and provides different ways of handling unknown characters/letters that are not in the selected alphabet.

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Category: Life Sciences

Author: Temesgen H. Dadi

This component provides different ways for finance and business intelligence teams to calculate, visualize, and analyze Annually Recurring Revenue (ARR) - by month and by year, in total, and at a customer level. ARR is a common metric for subscription-based services/products to reflect and predict revenue annually.

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Category: Financial Analysis

Author: Lada Rudnitckaia and Felix Kergl-Räpple

Interactively visualizes metadata on a workflow for auditing and governance purposes. The input metadata is provided by the Analyze Workflow Summary component. Via network analysis, the component highlights interesting workflow properties such as: the flow of data from data sources, the presence of code snippets or deprecated nodes, the list of components and their update status, and more.

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Category: Automation

Author: Temesgen H. Dadi

Creates an interactive view to filter and select columns for your model based on the relevance of the columns to the ground truth specified. It also captures the user specified columns by means of integrated deployment.

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Category: Guided Analytics

Author: Mahantesh Pattadkal

Automatically visualizes data in a dashboard based on the most interesting statistical properties of the input columns. A detailed explanation is available for each chart inside the dashboard. No configuration is necessary to automatically create the dashboard via the Component Composite View.

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Category: Visualizations

Author: Mahantesh Pattadkal

Reads DNA/RNA/Protein sequence files from a FASTA format file. The result is a three column table (ID, Sequence & SequenceLength), where individual sequence records are represented as rows.

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Category: Life Sciences

Author: Temesgen H. Dadi

Can be used as a generic file upload for the KNIME WebPortal or locally in KNIME Analytics Platform. It automatically detects the file format and chooses the correct node to read in the data.

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Category: Guided Analytics

Author: Janina Mothes

This component for eXplainable AI (XAI) can explain predictions of a black-box model created with the AutoML component via SHAP, partial dependence and a surrogate decision tree from KNIME MLI Extension. The generated composite view is interactive and can be customized by adding JavaScript or Plotly View nodes.

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Category: Model Interpretability

Author: Paolo Tamagnini and Mahantesh Pattadkal

Can be added to a workflow to get a unique list of nodes used in the workflow and the version number of a KNIME feature containing those nodes. The results can be included in reports and data exports for documentation purposes.

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Category: Automation

Author: Temesgen H. Dadi

These two components can be used to create a U-Net for 2D data with the Keras Deep Learning Integration. This kind of deep learning architecture was originally created for biomedical image segmentation but is now frequently used for general image segmentation.

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Category: Automation

Author: Janina Mothes

Automatically trains supervised machine learning models for both binary and multiclass classification. It's able to automate the whole ML cycle by performing some data preparation, parameter optimization with cross validation, scoring, evaluation and selection. It also captures the entire end to end process and outputs the deployment workflow using the KNIME Integrated Deployment Extension.

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Category: Automation

Author: Paolo Tamagnini and Mahantesh Pattadkal

Extracts information from a workflow summary XML file that can be obtained from either the File > Export > Workflow Summary (JSON/XML)… menu in KNIME Analytics Platform, or from a KNIME Server's REST API. You can use this Component to easily retrieve metadata of a KNIME Workflow for data lineage and governance purposes.

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Category: Automation

Author: Temesgen H. Dadi

Can be used before the bottom input port of SHAP Loop Start. This technique uses k-means to summarize the validation set and create a sampling table to use when creating coalitions. The created sampling table is large n rows, each row is a different prototype of the data. This n can be adjusted from the configuration dialogue of the Component. The n default value is 100. The output sampling table has, for each of the n clusters created by k-means, a prototype row and a column "SHAP Summarizer Sampling weight" that can be used by the SHAP Loop Start node.

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Category: Model Interpretability

Author: Mahantesh Pattadkal

Allows you to select a subset of molecules based on the input data and molecular properties calculated using the RDKit Descriptor Calculation node. The Interactive View depicts the molecular properties in a parallel coordinates plot, and the molecules' structural formula as tiles. The selected molecules are provided in the Component output. Note that columns from the input table is by default propagated to the parallel coordinates plot.

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Category: Life Sciences

Author: Alice Krebs