Search Results for author: Davide Buffelli

Found 10 papers, 6 papers with code

The Deep Equilibrium Algorithmic Reasoner

no code implementations9 Feb 2024 Dobrik Georgiev, Pietro Liò, Davide Buffelli

Recent work on neural algorithmic reasoning has demonstrated that graph neural networks (GNNs) could learn to execute classical algorithms.

Is Meta-Learning the Right Approach for the Cold-Start Problem in Recommender Systems?

no code implementations16 Aug 2023 Davide Buffelli, Ashish Gupta, Agnieszka Strzalka, Vassilis Plachouras

In the past few years, deep learning methods have attracted a lot of research, and are now heavily used in modern real-world recommender systems.

Meta-Learning Recommendation Systems +1

Extending Logic Explained Networks to Text Classification

1 code implementation4 Nov 2022 Rishabh Jain, Gabriele Ciravegna, Pietro Barbiero, Francesco Giannini, Davide Buffelli, Pietro Lio

Recently, Logic Explained Networks (LENs) have been proposed as explainable-by-design neural models providing logic explanations for their predictions.

text-classification Text Classification

Scalable Regularization of Scene Graph Generation Models using Symbolic Theories

no code implementations6 Sep 2022 Davide Buffelli, Efthymia Tsamoura

Our work introduces a regularization technique for injecting symbolic background knowledge into neural SGG models that overcomes the limitations of prior art.

Graph Generation Scene Graph Generation

SizeShiftReg: a Regularization Method for Improving Size-Generalization in Graph Neural Networks

1 code implementation16 Jul 2022 Davide Buffelli, Pietro Liò, Fabio Vandin

Previous works have tried to tackle this issue in graph classification by providing the model with inductive biases derived from assumptions on the generative process of the graphs, or by requiring access to graphs from the test domain.

Graph Classification

Graph Representation Learning for Multi-Task Settings: a Meta-Learning Approach

1 code implementation10 Jan 2022 Davide Buffelli, Fabio Vandin

While this approach achieves great results in the single-task setting, the generation of node embeddings that can be used to perform multiple tasks (with performance comparable to single-task models) is still an open problem.

Graph Representation Learning Meta-Learning

Are Graph Convolutional Networks Fully Exploiting the Graph Structure?

no code implementations1 Jan 2021 Davide Buffelli, Fabio Vandin

Graph Convolutional Networks (GCNs) represent the state-of-the-art for many graph related tasks.

A Meta-Learning Approach for Graph Representation Learning in Multi-Task Settings

1 code implementation12 Dec 2020 Davide Buffelli, Fabio Vandin

We show that the embeddings produced by our method can be used to perform multiple tasks with comparable or higher performance than classically trained models.

Graph Representation Learning Meta-Learning

The Impact of Global Structural Information in Graph Neural Networks Applications

1 code implementation6 Jun 2020 Davide Buffelli, Fabio Vandin

Graph Neural Networks (GNNs) rely on the graph structure to define an aggregation strategy where each node updates its representation by combining information from its neighbours.

Attention-Based Deep Learning Framework for Human Activity Recognition with User Adaptation

1 code implementation6 Jun 2020 Davide Buffelli, Fabio Vandin

We propose a simple and effective transfer-learning based strategy to adapt a model to a specific user, providing an average increment of $6\%$ on the F1 score on the predictions for that user.

Feature Engineering Human Activity Recognition +2

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