Search Results for author: Kostiantyn Kucher

Found 6 papers, 2 papers with code

Visualization for Trust in Machine Learning Revisited: The State of the Field in 2023

no code implementations18 Mar 2024 Angelos Chatzimparmpas, Kostiantyn Kucher, Andreas Kerren

Visualization for explainable and trustworthy machine learning remains one of the most important and heavily researched fields within information visualization and visual analytics with various application domains, such as medicine, finance, and bioinformatics.

An Interdisciplinary Perspective on Evaluation and Experimental Design for Visual Text Analytics: Position Paper

no code implementations23 Sep 2022 Kostiantyn Kucher, Nicole Sultanum, Angel Daza, Vasiliki Simaki, Maria Skeppstedt, Barbara Plank, Jean-Daniel Fekete, Narges Mahyar

We identify four key groups of challenges for evaluating visual text analytics approaches (data ambiguity, experimental design, user trust, and "big picture" concerns) and provide suggestions for research opportunities from an interdisciplinary perspective.

Experimental Design Position

FeatureEnVi: Visual Analytics for Feature Engineering Using Stepwise Selection and Semi-Automatic Extraction Approaches

no code implementations26 Mar 2021 Angelos Chatzimparmpas, Rafael M. Martins, Kostiantyn Kucher, Andreas Kerren

Despite that, while several visual analytics tools exist to monitor and control the different stages of the ML life cycle (especially those related to data and algorithms), feature engineering support remains inadequate.

Feature Engineering feature selection

VisEvol: Visual Analytics to Support Hyperparameter Search through Evolutionary Optimization

1 code implementation2 Dec 2020 Angelos Chatzimparmpas, Rafael M. Martins, Kostiantyn Kucher, Andreas Kerren

The challenge is exacerbated by the fact that most ML models are complex internally, and training involves trial-and-error processes that could remarkably affect the predictive result.

StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics

1 code implementation4 May 2020 Angelos Chatzimparmpas, Rafael M. Martins, Kostiantyn Kucher, Andreas Kerren

Our system, StackGenVis, assists users in dynamically adapting performance metrics, managing data instances, selecting the most important features for a given data set, choosing a set of top-performant and diverse algorithms, and measuring the predictive performance.

Ensemble Learning Stance Detection

Xtreaming: an incremental multidimensional projection technique and its application to streaming data

no code implementations8 Mar 2020 Tácito T. A. T. Neves, Rafael M. Martins, Danilo B. Coimbra, Kostiantyn Kucher, Andreas Kerren, Fernando V. Paulovich

To the best of our knowledge, it is the first methodology that is capable of evolving a projection to faithfully represent new emerging structures without the need to store all data, providing reliable results for efficiently and effectively projecting streaming data.

Dimensionality Reduction

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