Search Results for author: Mark Hoogendoorn

Found 25 papers, 14 papers with code

Revisiting the Robustness of the Minimum Error Entropy Criterion: A Transfer Learning Case Study

1 code implementation17 Jul 2023 Luis Pedro Silvestrin, Shujian Yu, Mark Hoogendoorn

In this paper, we revisit the robustness of the minimum error entropy (MEE) criterion, a widely used objective in statistical signal processing to deal with non-Gaussian noises, and investigate its feasibility and usefulness in real-life transfer learning regression tasks, where distributional shifts are common.

Time Series Transfer Learning

Multivariate Time Series Early Classification Across Channel and Time Dimensions

1 code implementation26 Jun 2023 Leonardos Pantiskas, Kees Verstoep, Mark Hoogendoorn, Henri Bal

Nowadays, the deployment of deep learning models on edge devices for addressing real-world classification problems is becoming more prevalent.

Classification Early Classification +3

Modelling Long Range Dependencies in $N$D: From Task-Specific to a General Purpose CNN

1 code implementation25 Jan 2023 David M. Knigge, David W. Romero, Albert Gu, Efstratios Gavves, Erik J. Bekkers, Jakub M. Tomczak, Mark Hoogendoorn, Jan-Jakob Sonke

Performant Convolutional Neural Network (CNN) architectures must be tailored to specific tasks in order to consider the length, resolution, and dimensionality of the input data.

Improving generalization in reinforcement learning through forked agents

no code implementations13 Dec 2022 Olivier Moulin, Vincent Francois-Lavet, Mark Hoogendoorn

An eco-system of agents each having their own policy with some, but limited, generalizability has proven to be a reliable approach to increase generalization across procedurally generated environments.

reinforcement-learning Reinforcement Learning (RL) +1

Disentangled (Un)Controllable Features

1 code implementation31 Oct 2022 Jacob E. Kooi, Mark Hoogendoorn, Vincent François-Lavet

In the context of MDPs with high-dimensional states, downstream tasks are predominantly applied on a compressed, low-dimensional representation of the original input space.

reinforcement-learning Reinforcement Learning (RL) +1

An Empirical Evaluation of Multivariate Time Series Classification with Input Transformation across Different Dimensions

1 code implementation14 Oct 2022 Leonardos Pantiskas, Kees Verstoep, Mark Hoogendoorn, Henri Bal

We also show that if we keep the transformation method constant, there is a statistically significant difference in accuracy results when applying it across different dimensions, with accuracy differences ranging from 0. 23 to 47. 79 percentage points.

Data Augmentation Time Series +2

Towards a General Purpose CNN for Long Range Dependencies in $N$D

1 code implementation7 Jun 2022 David W. Romero, David M. Knigge, Albert Gu, Erik J. Bekkers, Efstratios Gavves, Jakub M. Tomczak, Mark Hoogendoorn

The use of Convolutional Neural Networks (CNNs) is widespread in Deep Learning due to a range of desirable model properties which result in an efficient and effective machine learning framework.

Taking ROCKET on an Efficiency Mission: Multivariate Time Series Classification with LightWaveS

1 code implementation4 Apr 2022 Leonardos Pantiskas, Kees Verstoep, Mark Hoogendoorn, Henri Bal

We show that we achieve speedup ranging from 9x to 53x compared to ROCKET during inference on an edge device, on datasets with comparable accuracy.

feature selection Time Series +2

The Dutch Draw: Constructing a Universal Baseline for Binary Prediction Models

1 code implementation24 Mar 2022 Etienne van de Bijl, Jan Klein, Joris Pries, Sandjai Bhulai, Mark Hoogendoorn, Rob van der Mei

Summarizing, the DD baseline is: (1) general, as it is applicable to all binary classification problems; (2) simple, as it is quickly determined without training or parameter-tuning; (3) informative, as insightful conclusions can be drawn from the results.

Binary Classification

Transfer-Learning Across Datasets with Different Input Dimensions: An Algorithm and Analysis for the Linear Regression Case

1 code implementation10 Feb 2022 Luis Pedro Silvestrin, Harry van Zanten, Mark Hoogendoorn, Ger Koole

On the other hand, combining these new inputs with historical data remains a challenge that has not yet been studied in enough detail.

Transfer Learning

Taking ROCKET on an efficiency mission: A distributed solution for fast and accurate multivariate time series classification

no code implementations29 Sep 2021 Leonardos Pantiskas, Kees Verstoep, Mark Hoogendoorn, Henri Bal

Specifically, utilizing a wavelet scattering transformation of the time series and distributed feature selection, we manage to create a solution which employs just 2, 5% of the ROCKET features, while achieving accuracy comparable to recent deep learning solutions.

feature selection Time Series +2

Jasmine: A New Active Learning Approach to Combat Cybercrime

no code implementations13 Aug 2021 Jan Klein, Sandjai Bhulai, Mark Hoogendoorn, Rob van der Mei

These approaches choose speci? fic unlabeled instances by a query function that are expected to improve overall classi? cation performance.

Active Learning Intrusion Detection

pH-RL: A personalization architecture to bring reinforcement learning to health practice

no code implementations29 Mar 2021 Ali el Hassouni, Mark Hoogendoorn, Marketa Ciharova, Annet Kleiboer, Khadicha Amarti, Vesa Muhonen, Heleen Riper, A. E. Eiben

We implemented our open-source RL architecture and integrated it with the MoodBuster mobile application for mental health to provide messages to increase daily adherence to the online therapeutic modules.

reinforcement-learning Reinforcement Learning (RL)

Mixing Consistent Deep Clustering

no code implementations3 Nov 2020 Daniel Lutscher, Ali el Hassouni, Maarten Stol, Mark Hoogendoorn

Finding well-defined clusters in data represents a fundamental challenge for many data-driven applications, and largely depends on good data representation.

Clustering Deep Clustering +1

Wavelet Networks: Scale-Translation Equivariant Learning From Raw Time-Series

1 code implementation9 Jun 2020 David W. Romero, Erik J. Bekkers, Jakub M. Tomczak, Mark Hoogendoorn

In this work, we fill this gap by leveraging the symmetries inherent to time-series for the construction of equivariant neural network.

Descriptive Time Series +2

Attentive Group Equivariant Convolutional Networks

1 code implementation ICML 2020 David W. Romero, Erik J. Bekkers, Jakub M. Tomczak, Mark Hoogendoorn

Although group convolutional networks are able to learn powerful representations based on symmetry patterns, they lack explicit means to learn meaningful relationships among them (e. g., relative positions and poses).

Co-Attentive Equivariant Neural Networks: Focusing Equivariance On Transformations Co-Occurring In Data

no code implementations ICLR 2020 David W. Romero, Mark Hoogendoorn

Equivariance is a nice property to have as it produces much more parameter efficient neural architectures and preserves the structure of the input through the feature mapping.

Object Recognition Rotated MNIST

Reinforcement Learning for Personalized Dialogue Management

no code implementations1 Aug 2019 Floris den Hengst, Mark Hoogendoorn, Frank van Harmelen, Joost Bosman

Reinforcement Learning methods that optimize dialogue policies have seen successes in past years and have recently been extended into methods that personalize the dialogue, e. g. take the personal context of users into account.

Dialogue Management Management +3

GP-HD: Using Genetic Programming to Generate Dynamical Systems Models for Health Care

no code implementations11 Apr 2019 Mark Hoogendoorn, Ward van Breda, Jeroen Ruwaard

The huge wealth of data in the health domain can be exploited to create models that predict development of health states over time.

Identifying Patient Groups based on Frequent Patterns of Patient Samples

no code implementations3 Apr 2019 Seyed Amin Tabatabaei, Xixi Lu, Mark Hoogendoorn, Hajo A. Reijers

In this paper we propose an approach that is able to find groups of patients based on a small sample of positive examples given by a domain expert.

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