Search Results for author: Michał Koziarski

Found 13 papers, 7 papers with code

Towards equilibrium molecular conformation generation with GFlowNets

no code implementations20 Oct 2023 Alexandra Volokhova, Michał Koziarski, Alex Hernández-García, Cheng-Hao Liu, Santiago Miret, Pablo Lemos, Luca Thiede, Zichao Yan, Alán Aspuru-Guzik, Yoshua Bengio

Sampling diverse, thermodynamically feasible molecular conformations plays a crucial role in predicting properties of a molecule.

ChiENN: Embracing Molecular Chirality with Graph Neural Networks

1 code implementation5 Jul 2023 Piotr Gaiński, Michał Koziarski, Jacek Tabor, Marek Śmieja

Graph Neural Networks (GNNs) play a fundamental role in many deep learning problems, in particular in cheminformatics.

Drug Discovery Molecular Property Prediction +1

Imbalanced data preprocessing techniques utilizing local data characteristics

no code implementations28 Nov 2021 Michał Koziarski

The focus of this thesis is development of novel data resampling strategies natively utilizing the information about the distribution of both minority and majority class.

RB-CCR: Radial-Based Combined Cleaning and Resampling algorithm for imbalanced data classification

1 code implementation9 May 2021 Michał Koziarski, Colin Bellinger, Michał Woźniak

Our $5\times2$ cross-validated results on 57 benchmark binary datasets with 9 classifiers show that RB-CCR achieves a better precision-recall trade-off than CCR and generally out-performs the state-of-the-art resampling methods in terms of AUC and G-mean.

General Classification

Potential Anchoring for imbalanced data classification

1 code implementation17 Apr 2021 Michał Koziarski

The results of the experiments conducted on 60 imbalanced datasets show outperformance of Potential Anchoring over state-of-the-art resampling algorithms, including previously proposed methods that utilize radial basis functions to model class potential.

Classification General Classification

Combined Cleaning and Resampling Algorithm for Multi-Class Imbalanced Data with Label Noise

no code implementations7 Apr 2020 Michał Koziarski, Michał Woźniak, Bartosz Krawczyk

The proposed method utilizes an energy-based approach to modeling the regions suitable for oversampling, less affected by small disjuncts and outliers than SMOTE.

Binary Classification General Classification

CSMOUTE: Combined Synthetic Oversampling and Undersampling Technique for Imbalanced Data Classification

no code implementations7 Apr 2020 Michał Koziarski

Furthermore, we combine both in the Combined Synthetic Oversampling and Undersampling Technique (CSMOUTE), which integrates SMOTE oversampling with SMUTE undersampling.

General Classification

Radial-Based Undersampling for Imbalanced Data Classification

1 code implementation2 Jun 2019 Michał Koziarski

Aforementioned difficulty factors can also limit the applicability of some of the methods of dealing with data imbalance, in particular the neighborhood-based oversampling algorithms based on SMOTE.

Classification General Classification

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