Search Results for author: Dexiong Chen

Found 12 papers, 11 papers with code

SURE: SUrvey REcipes for building reliable and robust deep networks

1 code implementation1 Mar 2024 Yuting Li, Yingyi Chen, Xuanlong Yu, Dexiong Chen, Xi Shen

In this paper, we revisit techniques for uncertainty estimation within deep neural networks and consolidate a suite of techniques to enhance their reliability.

Learning with noisy labels Long-tail Learning

Endowing Protein Language Models with Structural Knowledge

1 code implementation26 Jan 2024 Dexiong Chen, Philip Hartout, Paolo Pellizzoni, Carlos Oliver, Karsten Borgwardt

Drawing from recent advances in graph transformers, our approach refines the self-attention mechanisms of pretrained language transformers by integrating structural information with structure extractor modules.

Language Modelling Masked Language Modeling +2

Fisher Information Embedding for Node and Graph Learning

1 code implementation12 May 2023 Dexiong Chen, Paolo Pellizzoni, Karsten Borgwardt

Attention-based graph neural networks (GNNs), such as graph attention networks (GATs), have become popular neural architectures for processing graph-structured data and learning node embeddings.

Graph Attention Graph Learning +1

Unsupervised Manifold Alignment with Joint Multidimensional Scaling

1 code implementation6 Jul 2022 Dexiong Chen, Bowen Fan, Carlos Oliver, Karsten Borgwardt

Our approach integrates Multidimensional Scaling (MDS) and Wasserstein Procrustes analysis into a joint optimization problem to simultaneously generate isometric embeddings of data and learn correspondences between instances from two different datasets, while only requiring intra-dataset pairwise dissimilarities as input.

Domain Adaptation Graph Matching

Approximate Network Motif Mining Via Graph Learning

1 code implementation2 Jun 2022 Carlos Oliver, Dexiong Chen, Vincent Mallet, Pericles Philippopoulos, Karsten Borgwardt

Frequent and structurally related subgraphs, also known as network motifs, are valuable features of many graph datasets.

BIG-bench Machine Learning Graph Classification +1

Structure-Aware Transformer for Graph Representation Learning

3 code implementations7 Feb 2022 Dexiong Chen, Leslie O'Bray, Karsten Borgwardt

Here, we show that the node representations generated by the Transformer with positional encoding do not necessarily capture structural similarity between them.

Emotion Recognition in Conversation Graph Representation Learning

GraphiT: Encoding Graph Structure in Transformers

1 code implementation10 Jun 2021 Grégoire Mialon, Dexiong Chen, Margot Selosse, Julien Mairal

We show that viewing graphs as sets of node features and incorporating structural and positional information into a transformer architecture is able to outperform representations learned with classical graph neural networks (GNNs).

A Trainable Optimal Transport Embedding for Feature Aggregation and its Relationship to Attention

1 code implementation ICLR 2021 Grégoire Mialon, Dexiong Chen, Alexandre d'Aspremont, Julien Mairal

We address the problem of learning on sets of features, motivated by the need of performing pooling operations in long biological sequences of varying sizes, with long-range dependencies, and possibly few labeled data.

Convolutional Kernel Networks for Graph-Structured Data

1 code implementation ICML 2020 Dexiong Chen, Laurent Jacob, Julien Mairal

On the other hand, our model can also be trained end-to-end on large-scale data, leading to new types of graph convolutional neural networks.

Graph Classification

MetaMixUp: Learning Adaptive Interpolation Policy of MixUp with Meta-Learning

no code implementations27 Aug 2019 Zhijun Mai, Guosheng Hu, Dexiong Chen, Fumin Shen, Heng Tao Shen

Since deep networks are capable of memorizing the entire dataset, the corrupted samples generated by vanilla MixUp with a badly chosen interpolation policy will degrade the performance of networks.

Data Augmentation Domain Adaptation +2

Recurrent Kernel Networks

1 code implementation NeurIPS 2019 Dexiong Chen, Laurent Jacob, Julien Mairal

Substring kernels are classical tools for representing biological sequences or text.

A Kernel Perspective for Regularizing Deep Neural Networks

1 code implementation30 Sep 2018 Alberto Bietti, Grégoire Mialon, Dexiong Chen, Julien Mairal

We propose a new point of view for regularizing deep neural networks by using the norm of a reproducing kernel Hilbert space (RKHS).

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