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Detalhes

Detalhes

  • Nome

    Bruno Miguel Veloso
  • Cluster

    Informática
  • Cargo

    Investigador Sénior
  • Desde

    01 março 2013
001
Publicações

2019

On-line guest profiling and hotel recommendation

Autores
Veloso, BM; Leal, F; Malheiro, B; Carlos Burguillo, JC;

Publicação
Electronic Commerce Research and Applications

Abstract

2019

Scalable Modelling and Recommendation using Wiki-based Crowdsourced Repositories

Autores
Leal, F; Veloso, BM; Malheiro, B; Gonzalez Velez, H; Carlos Burguillo, JC;

Publicação
Electronic Commerce Research and Applications

Abstract

2019

Stream recommendation using individual hyper-parameters

Autores
Veloso, B; Malheiro, B; Foss, JD;

Publicação
CEUR Workshop Proceedings

Abstract
Nowadays, with the widely usage of on-line stream video platforms, the number of media resources available and the volume of crowd-sourced feedback volunteered by viewers is increasing exponentially. In this scenario, the adoption of recommendation systems allows platforms to match viewers with resources. However, due to the sheer size of the data and the pace of the arriving data, there is the need to adopt stream mining algorithms to build and maintain models of the viewer preferences as well as to make timely personalised recommendations. In this paper, we propose the adoption of optimal individual hyper-parameters to build more accurate dynamic viewer models. First, we use a grid search algorithm to identify the optimal individual hyper-parameters (IHP) and, then, use these hyper-parameters to update incrementally the user model. This technique is based on an incremental learning algorithm designed for stream data. The results show that our approach outperforms previous approaches, reducing substantially the prediction errors and, thus, increasing the accuracy of the recommendations. © 2019 for this paper by its authors.

2019

Distributed Trust & Reputation Models using Blockchain Technologies for Tourism Crowdsourcing Platforms

Autores
Veloso, B; Leal, F; Malheiro, B; Moreira, F;

Publicação
Procedia Computer Science

Abstract

2018

APASail—An Agent-Based Platform for Autonomous Sailing Research and Competition

Autores
Alves, B; Veloso, B; Malheiro, B;

Publicação
Robotic Sailing 2017

Abstract