Search Results for author: Sofie Van Hoecke

Found 15 papers, 13 papers with code

From Haystack to Needle: Label Space Reduction for Zero-shot Classification

no code implementations12 Feb 2025 Nathan Vandemoortele, Bram Steenwinckel, Femke Ongenae, Sofie Van Hoecke

We present Label Space Reduction (LSR), a novel method for improving zero-shot classification performance of Large Language Models (LLMs).

Classification Zero-Shot Learning

landmarker: a Toolkit for Anatomical Landmark Localization in 2D/3D Images

1 code implementation17 Jan 2025 Jef Jonkers, Luc Duchateau, Glenn Van Wallendael, Sofie Van Hoecke

Although many general-purpose tools exist for landmark localization in classical computer vision tasks, such as pose estimation, they lack the specialized features and modularity necessary for anatomical landmark localization applications in the medical domain.

Pose Estimation

Conformal Prediction for Dose-Response Models with Continuous Treatments

1 code implementation30 Sep 2024 Jarne Verhaeghe, Jef Jonkers, Sofie Van Hoecke

Understanding the dose-response relation between a continuous treatment and the outcome for an individual can greatly drive decision-making, particularly in areas like personalized drug dosing and personalized healthcare interventions.

Conformal Prediction Decision Making +3

Conformal Predictive Systems Under Covariate Shift

1 code implementation23 Apr 2024 Jef Jonkers, Glenn Van Wallendael, Luc Duchateau, Sofie Van Hoecke

Conformal Predictive Systems (CPS) offer a versatile framework for constructing predictive distributions, allowing for calibrated inference and informative decision-making.

Conformal Prediction Decision Making

Conformal Convolution and Monte Carlo Meta-learners for Predictive Inference of Individual Treatment Effects

2 code implementations7 Feb 2024 Jef Jonkers, Jarne Verhaeghe, Glenn Van Wallendael, Luc Duchateau, Sofie Van Hoecke

The approaches leverage weighted conformal predictive systems (WCPS), Monte Carlo sampling, and CATE meta-learners to generate predictive distributions of individual treatment effect (ITE) that could enhance individualized decision-making.

Decision Making Uncertainty Quantification

tsdownsample: high-performance time series downsampling for scalable visualization

1 code implementation5 Jul 2023 Jeroen Van Der Donckt, Jonas Van Der Donckt, Sofie Van Hoecke

We achieve this optimization by leveraging low-level SIMD instructions and multithreading capabilities in Rust.

Time Series

Plotly-Resampler: Effective Visual Analytics for Large Time Series

1 code implementation17 Jun 2022 Jonas Van Der Donckt, Jeroen Van Der Donckt, Emiel Deprost, Sofie Van Hoecke

We observe that open source Python visualization toolkits empower data scientists in most visual analytics tasks, but lack the combination of scalability and interactivity to realize effective time series visualization.

Data Visualization Time Series +1

Powershap: A Power-full Shapley Feature Selection Method

1 code implementation16 Jun 2022 Jarne Verhaeghe, Jeroen Van Der Donckt, Femke Ongenae, Sofie Van Hoecke

Benchmarks and simulations show that powershap outperforms other filter methods with predictive performances on par with wrapper methods while being significantly faster, often even reaching half or a third of the execution time.

feature selection

R-GCN: The R Could Stand for Random

1 code implementation4 Mar 2022 Vic Degraeve, Gilles Vandewiele, Femke Ongenae, Sofie Van Hoecke

The inception of the Relational Graph Convolutional Network (R-GCN) marked a milestone in the Semantic Web domain as a widely cited method that generalises end-to-end hierarchical representation learning to Knowledge Graphs (KGs).

Knowledge Graphs Link Prediction +2

tsflex: flexible time series processing & feature extraction

1 code implementation24 Nov 2021 Jonas Van Der Donckt, Jeroen Van Der Donckt, Emiel Deprost, Sofie Van Hoecke

$\texttt{tsflex}$ is flexible as it supports (1) multivariate time series, (2) multiple window-stride configurations, and (3) integrates with processing and feature functions from other packages, while (4) making no assumptions about the data sampling regularity, series alignment, and data type.

Chunking Time Series +1

GENESIM: genetic extraction of a single, interpretable model

1 code implementation17 Nov 2016 Gilles Vandewiele, Olivier Janssens, Femke Ongenae, Filip De Turck, Sofie Van Hoecke

The results show that GENESIM achieves a better predictive performance on most of these data sets than decision tree induction techniques and a predictive performance in the same order of magnitude as the ensemble techniques.

Decision Making Interpretable Machine Learning +1

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