Search Results for author: Nutan Chen

Found 17 papers, 4 papers with code

A dataset of primary nasopharyngeal carcinoma MRI with multi-modalities segmentation

no code implementations4 Apr 2024 Yin Li, Qi Chen, Kai Wang, Meige Li, Liping Si, Yingwei Guo, Yu Xiong, Qixing Wang, Yang Qin, Ling Xu, Patrick van der Smagt, Jun Tang, Nutan Chen

Multi-modality magnetic resonance imaging data with various sequences facilitate the early diagnosis, tumor segmentation, and disease staging in the management of nasopharyngeal carcinoma (NPC).

Management Tumor Segmentation

Guided Decoding for Robot Motion Generation and Adaption

no code implementations22 Mar 2024 Nutan Chen, Elie Aljalbout, Botond Cseke, Patrick van der Smagt

This integration facilitates rapid adaptation to new tasks and optimizes the utilization of accumulated expertise by allowing robots to learn and generalize from demonstrated trajectories.

M-HOF-Opt: Multi-Objective Hierarchical Output Feedback Optimization via Multiplier Induced Loss Landscape Scheduling

1 code implementation20 Mar 2024 Xudong Sun, Nutan Chen, Alexej Gossmann, Yu Xing, Carla Feistner, Emilio Dorigatt, Felix Drost, Daniele Scarcella, Lisa Beer, Carsten Marr

We address the online combinatorial choice of weight multipliers for multi-objective optimization of many loss terms parameterized by neural works via a probabilistic graphical model (PGM) for the joint model parameter and multiplier evolution process, with a hypervolume based likelihood promoting multi-objective descent.

Domain Generalization Scheduling

Sequential Model for Predicting Patient Adherence in Subcutaneous Immunotherapy for Allergic Rhinitis

1 code implementation21 Jan 2024 Yin Li, Yu Xiong, Wenxin Fan, Kai Wang, Qingqing Yu, Liping Si, Patrick van der Smagt, Jun Tang, Nutan Chen

Conclusion: We creatively apply sequential models in the long-term management of SCIT with promising accuracy in the prediction of SCIT nonadherence in Allergic Rhinitis (AR) patients.

Management

Local Distance Preserving Auto-encoders using Continuous k-Nearest Neighbours Graphs

no code implementations13 Jun 2022 Nutan Chen, Patrick van der Smagt, Botond Cseke

Auto-encoder models that preserve similarities in the data are a popular tool in representation learning.

Representation Learning

Flat Latent Manifolds for Human-machine Co-creation of Music

no code implementations23 Feb 2022 Nutan Chen, Djalel Benbouzid, Francesco Ferroni, Mathis Nitschke, Luciano Pinna, Patrick van der Smagt

We therefore consider a music-generating algorithm as a counterpart to a human musician, in a setting where reciprocal interplay is to lead to new experiences, both for the musician and the audience.

Music Generation

Learning Flat Latent Manifolds with VAEs

no code implementations ICML 2020 Nutan Chen, Alexej Klushyn, Francesco Ferroni, Justin Bayer, Patrick van der Smagt

Prevalent is the use of the Euclidean metric, which has the drawback of ignoring information about similarity of data stored in the decoder, as captured by the framework of Riemannian geometry.

Computational Efficiency

FLAT MANIFOLD VAES

no code implementations25 Sep 2019 Nutan Chen, Alexej Klushyn, Francesco Ferroni, Justin Bayer, Patrick van der Smagt

Latent-variable models represent observed data by mapping a prior distribution over some latent space to an observed space.

Estimating Fingertip Forces, Torques, and Local Curvatures from Fingernail Images

no code implementations9 Sep 2019 Nutan Chen, Göran Westling, Benoni B. Edin, Patrick van der Smagt

In addition, compared with previous single finger estimation in an experimental environment, we extend the approach to multiple finger force estimation, which can be used for applications such as human grasping analysis.

Increasing the Generalisation Capacity of Conditional VAEs

no code implementations23 Aug 2019 Alexej Klushyn, Nutan Chen, Botond Cseke, Justin Bayer, Patrick van der Smagt

We address the problem of one-to-many mappings in supervised learning, where a single instance has many different solutions of possibly equal cost.

Structured Prediction

Learning Hierarchical Priors in VAEs

no code implementations NeurIPS 2019 Alexej Klushyn, Nutan Chen, Richard Kurle, Botond Cseke, Patrick van der Smagt

We propose to learn a hierarchical prior in the context of variational autoencoders to avoid the over-regularisation resulting from a standard normal prior distribution.

Fast Approximate Geodesics for Deep Generative Models

no code implementations19 Dec 2018 Nutan Chen, Francesco Ferroni, Alexej Klushyn, Alexandros Paraschos, Justin Bayer, Patrick van der Smagt

The length of the geodesic between two data points along a Riemannian manifold, induced by a deep generative model, yields a principled measure of similarity.

Active Learning based on Data Uncertainty and Model Sensitivity

no code implementations6 Aug 2018 Nutan Chen, Alexej Klushyn, Alexandros Paraschos, Djalel Benbouzid, Patrick van der Smagt

It relies on the Jacobian of the likelihood to detect non-smooth transitions in the latent space, i. e., transitions that lead to abrupt changes in the movement of the robot.

Active Learning Metric Learning

Metrics for Deep Generative Models

no code implementations3 Nov 2017 Nutan Chen, Alexej Klushyn, Richard Kurle, Xueyan Jiang, Justin Bayer, Patrick van der Smagt

Neural samplers such as variational autoencoders (VAEs) or generative adversarial networks (GANs) approximate distributions by transforming samples from a simple random source---the latent space---to samples from a more complex distribution represented by a dataset.

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