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Details

  • Name

    Pedro Manuel Ribeiro
  • Cluster

    Computer Science
  • Role

    Senior Researcher
  • Since

    03rd May 2010
Publications

2018

TensorCast: Forecasting Time-Evolving Networks with Contextual Information

Authors
Araujo, M; Pinto Ribeiro, PM; Faloutsos, C;

Publication
Proceedings of the Twenty-Seventh International Joint Conference on Artificial Intelligence, IJCAI 2018, July 13-19, 2018, Stockholm, Sweden.

Abstract

2018

Graphlet-orbit Transitions (GoT): A fingerprint for temporal network comparison

Authors
Aparicio, D; Ribeiro, P; Silva, F;

Publication
PLOS ONE

Abstract

2018

Fast streaming small graph canonization

Authors
Paredes, P; Ribeiro, P;

Publication
Springer Proceedings in Complexity

Abstract
In this paper, we introduce the streaming graph canonization problem. Its goal is finding a canonical representation of a sequence of graphs in a stream. Our model of a stream fixes the graph’s vertices and allows for fully dynamic edge changes, meaning it permits both addition and removal of edges. Our focus is on small graphs, since small graph isomorphism is an important primitive of many subgraph-based metrics, like motif analysis or frequent subgraph mining. We present an efficient data structure to approach this problem, namely a graph isomorphism discrete finite automaton and showcase its efficiency when compared to a non-streaming-aware method that simply recomputes the isomorphism information from scratch in each iteration. © Springer International Publishing AG 2018.

2018

Hierarchical Expert Profiling Using Heterogeneous Information Networks

Authors
Silva, JMB; Ribeiro, P; Silva, FMA;

Publication
Discovery Science - Lecture Notes in Computer Science

Abstract

2017

Evolutionary role mining in complex networks by ensemble clustering

Authors
Choobdar, S; Pinto Ribeiro, PM; Silva, FMA;

Publication
Proceedings of the Symposium on Applied Computing, SAC 2017, Marrakech, Morocco, April 3-7, 2017

Abstract

Supervised
thesis

2017

Communities and Anomaly Detection in Large Edged-Labeled Graphs

Author
Miguel Ramos de Araújo

Institution
UP-FCUP

2017

Improving the search for multi-relational concepts in ILP

Author
Alberto José Rajão Barbosa

Institution
UP-FCUP

2017

CompAlg - Ferramenta de Ensino e Aprendizagem da Lógica de Programação

Author
Augusto Manuel Bilabila

Institution
UP-FCUP

2017

Counting subgraphs: from static to dynamic networks

Author
Pedro Miguel Reis Bento Paredes

Institution
UP-FCUP

2016

Pattern Discovery in Complex Networks

Author
David Oliveira Aparício

Institution
UP-FCUP