1 code implementation • 6 Mar 2024 • Sam Adam-Day, Michael Benedikt, İsmail İlkan Ceylan, Ben Finkelshtein
Our results apply to a broad class of random graph models, including the (sparse) Erd\H{o}s-R\'enyi model and the stochastic block model.
no code implementations • 6 Feb 2024 • Xingyue Huang, Miguel Romero Orth, Pablo Barceló, Michael M. Bronstein, İsmail İlkan Ceylan
In this paper, we propose two frameworks for link prediction with relational hypergraphs and conduct a thorough analysis of the expressive power of the resulting model architectures via corresponding relational Weisfeiler-Leman algorithms, and also via some natural logical formalisms.
no code implementations • 3 Feb 2024 • Christopher Morris, Nadav Dym, Haggai Maron, İsmail İlkan Ceylan, Fabrizio Frasca, Ron Levie, Derek Lim, Michael Bronstein, Martin Grohe, Stefanie Jegelka
Machine learning on graphs, especially using graph neural networks (GNNs), has seen a surge in interest due to the wide availability of graph data across a broad spectrum of disciplines, from life to social and engineering sciences.
no code implementations • 2 Oct 2023 • Ben Finkelshtein, Xingyue Huang, Michael Bronstein, İsmail İlkan Ceylan
Graph neural networks are popular architectures for graph machine learning, based on iterative computation of node representations of an input graph through a series of invariant transformations.
1 code implementation • NeurIPS 2023 • Radoslav Dimitrov, Zeyang Zhao, Ralph Abboud, İsmail İlkan Ceylan
Graph neural networks are prominent models for representation learning over graphs, where the idea is to iteratively compute representations of nodes of an input graph through a series of transformations in such a way that the learned graph function is isomorphism invariant on graphs, which makes the learned representations graph invariants.
1 code implementation • NeurIPS 2023 • Xingyue Huang, Miguel Romero Orth, İsmail İlkan Ceylan, Pablo Barceló
Our goal is to provide a systematic understanding of the landscape of graph neural networks for knowledge graphs pertaining to the prominent task of link prediction.
1 code implementation • 2 Jun 2022 • Ralph Abboud, Radoslav Dimitrov, İsmail İlkan Ceylan
Most graph neural network models rely on a particular message passing paradigm, where the idea is to iteratively propagate node representations of a graph to each node in the direct neighborhood.
no code implementations • 10 Dec 2021 • Péter Mernyei, Konstantinos Meichanetzidis, İsmail İlkan Ceylan
We investigate quantum circuits for graph representation learning, and propose equivariant quantum graph circuits (EQGCs), as a class of parameterized quantum circuits with strong relational inductive bias for learning over graph-structured data.
1 code implementation • 18 Sep 2021 • Johannes Messner, Ralph Abboud, İsmail İlkan Ceylan
Temporal knowledge graph completion (TKGC) is an extension of this task to temporal knowledge graphs, where each fact is additionally associated with a time stamp.
Knowledge Graph Embedding Temporal Knowledge Graph Completion
no code implementations • 14 Jun 2021 • Ralph Abboud, İsmail İlkan Ceylan
Node classification and link prediction are widely studied in graph representation learning.
1 code implementation • 2 Oct 2020 • Ralph Abboud, İsmail İlkan Ceylan, Martin Grohe, Thomas Lukasiewicz
In this work, we analyze the expressive power of GNNs with RNI, and prove that these models are universal, a first such result for GNNs not relying on computationally demanding higher-order properties.
1 code implementation • NeurIPS 2020 • Ralph Abboud, İsmail İlkan Ceylan, Thomas Lukasiewicz, Tommaso Salvatori
Knowledge base completion (KBC) aims to automatically infer missing facts by exploiting information already present in a knowledge base (KB).
Ranked #1 on Link Prediction on FB-AUTO
no code implementations • 17 Feb 2020 • Ralph Abboud, İsmail İlkan Ceylan, Radoslav Dimitrov
Weighted model counting (WMC) consists of computing the weighted sum of all satisfying assignments of a propositional formula.
no code implementations • 26 Jun 2015 • İsmail İlkan Ceylan, Rafael Peñaloza
Many formalisms combining ontology languages with uncertainty, usually in the form of probabilities, have been studied over the years.
no code implementations • 26 Dec 2014 • Diego Calvanese, İsmail İlkan Ceylan, Marco Montali, Ario Santoso
Knowledge and Action Bases (KABs) have been recently proposed as a formal framework to capture the dynamics of systems which manipulate Description Logic (DL) Knowledge Bases (KBs) through action execution.