Search Results for author: Daniele Castellana

Found 7 papers, 4 papers with code

Investigating the Interplay between Features and Structures in Graph Learning

1 code implementation18 Aug 2023 Daniele Castellana, Federico Errica

Our findings reveal that previously defined metrics are not adequate when we relax the above assumption.

Graph Learning Inductive Bias +2

The Infinite Contextual Graph Markov Model

no code implementations29 Sep 2021 Daniele Castellana, Federico Errica, Davide Bacciu, Alessio Micheli

The Contextual Graph Markov Model is a deep, unsupervised, and probabilistic model for graphs that is trained incrementally on a layer-by-layer basis.

Graph Classification Model Selection

Learning from Non-Binary Constituency Trees via Tensor Decomposition

1 code implementation COLING 2020 Daniele Castellana, Davide Bacciu

Finally, we introduce a Tree-LSTM model which takes advantage of this composition function and we experimentally assess its performance on different NLP tasks.

Sentence Tensor Decomposition

Tensor Decompositions in Recursive Neural Networks for Tree-Structured Data

1 code implementation18 Jun 2020 Daniele Castellana, Davide Bacciu

The paper introduces two new aggregation functions to encode structural knowledge from tree-structured data.

General Classification

Generalising Recursive Neural Models by Tensor Decomposition

1 code implementation17 Jun 2020 Daniele Castellana, Davide Bacciu

This approximation allows limiting the parameters space size, decoupling it from its strict relation with the size of the hidden encoding space.

Tensor Decomposition

Bayesian Tensor Factorisation for Bottom-up Hidden Tree Markov Models

no code implementations31 May 2019 Daniele Castellana, Davide Bacciu

Bottom-Up Hidden Tree Markov Model is a highly expressive model for tree-structured data.

Learning Tree Distributions by Hidden Markov Models

no code implementations31 May 2018 Davide Bacciu, Daniele Castellana

Hidden tree Markov models allow learning distributions for tree structured data while being interpretable as nondeterministic automata.

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