II Luis Otavio Alvares
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Some Recent Publications

2011

Weka-STPM: a Software Architecture and Prototype for Semantic Trajectory Data Mining (Vania Bogorny, Hercules Avancini, Bruno Cesar de Paula, Cassiano Rocha Kuplich  and Luis Otavio Alvares), Transactions in GIS, Volume 15, Number 2, p. 227-248, 2011.

An Algorithm to Identify Avoidance Behavior in Moving Object Trajectories (Luis Otavio Alvares, Alisson M. Loy, Chiara Renso   and Vania Bogorny), Journal of the Brazilian Computer Society, Volume 17, Number 3, p. 193-203, 2011.

TRACTS: Um método para a classificação de trajetórias de objetos móveis usando séries temporais (Irineu Pinheiro dos Santos   and Luis Otavio Alvares), ENIA 2011, Natal, 19-22 July 2011. (in Portuguese)


2010

Semantic-based pruning of redundant and uninteresting frequent geographic patterns (Vania Bogorny, João Valiati  and Luis Otavio Alvares), Geoinformatica,Volume 14, Number 2, p. 201-220, 2010.

Um algoritmo para identificar padrões comportamentais do tipo avoidance em trajetórias de objetos móveis (Alisson M. Loy, Vania Bogorny, Chiara Renso   and Luis Otavio Alvares), GEOINFO 2010, Campos do Jordao, November 2010. (in Portuguese)

A conceptual data model for trajectory data mining (Vania Bogorny, Carlos Heuser   and Luis Otavio Alvares), Sixth International Conference on Geographic Information Science (GIScience 2010), Zurich, September 2010, p.1-14.

DB-SMoT: a Direction-based spatio-temporal clustering method (Jose Antonio Manso, Valeria Times, Gabriel Oliveira, Luis Otavio Alvares   and Vania Bogorny), Proc. of the Fifth IEEE International Conference on Intelligent Systems (IEEE IS 2010), London, 7-9 July 2010.

Weka-STPM: from trajectory samples to semantic trajectories ( Luis Otavio Alvares, Andrey Palma, Gabriel Oliveira   and Vania Bogorny), Proc of the XI Workshop de Sofware Livre, Porto Alegre, 21-24 July 2010, p.164-169.


2009

ST-DMQL: A Semantic Trajectory Data Mining Query Language (Vania Bogorny, Bart Kuijpers  and Luis Otavio Alvares), IJGIS International Journal of Geographical Information Science, 23(10), p.1245-1276, 2009.

Descoberta de Posições Táticas em Ambientes Virtuais com a Utilização de Agrupamentos Espaço-Temporais (Ivan Medeiros Monteiro, Vania Bogorny   and Luis Otavio Alvares), Proc. of the VII Brazilian Symposium on Games and Digital Entertainment, Rio de Janeiro, 8-10 October 2009. p. 45-48. (in Portuguese)

Un mecanismo constructivista para el aprendizaje de anticipaciones en sistemas acoplados agente-ambiente. (Filipo Perotto, Jean-Christophe Buisson   and Luis Otavio Alvares), Proc. of the XXXV Latin American Informatics Conference, Pelotas, 22-25 September 2009. (in Spanish)

Uma Infraestrutura de Teamwork para Ambientes Dinâmicos com Requisitos de Tempo-Real (Ivan Medeiros Monteiro   and Luis Otavio Alvares), Proc. of the SBC ENIA 2009, Bento Goncalves, 21-24 July 2009. (in Portuguese)

Um Mecanismo Construtivista para a Aprendizagem de Estrutura de MDPs Fatorados e Parcialmente Observáveis (Filipo Perotto, Jean-Christophe Buisson   and Luis Otavio Alvares), Proc. of the SBC ENIA 2009, Bento Goncalves, 21-24 July 2009. (in Portuguese)

A framework for Trajectory Preprocessing for Data Mining (Luis Otavio Alvares, Gabriel Oliveira, Carlos Aberto Heuser   and Vania Bogorny), Proc. of the 21st International Symposium on Software Engineering and Knowledge Engineering, (SEKE'09), Boston, 1-3 July 2009.

A Teamwork Infrastructure for Computer Games with Real-Time Requirements (Ivan Medeiros Monteiro   and Luis Otavio Alvares), Proc. of the AAMAS-09 Workshop on Agents for Games and Simulations, Budapest, 11 May 2009.

2008


Reducing Uninteresting Spatial Association Rules in Geographic Databases using Background Knowledge: a Summary of Results (Vania Bogorny, Bart Kuijpers  and Luis Otavio Alvares), IJGIS International Journal of Geographical Information Science, 22(4), p.361-386, 2008.

A Real-Time Proxy for Flexible Teamwork in Dynamic environments (Ivan Monteiro  and Luis Otavio Alvares), Proc. of the VII Brazilian Symposium on Computer Games and Digital Entertainment (SBGames 2008), Belo Horizonte, Brazil, 10-12 November 2008, p.83-90.

A Clustering-based Approach for Discovering Interesting Places in Trajectories (Andrey Palma, Vania Bogorny, Bart Kuijpers  and Luis Otavio Alvares), Proc. of the ACM 23rd Annual Symposium on Applied Computing, (ACM-SAC'08), Fortaleza, Brazil, 16-20 March 2008, p.863-868.

Towards elimination of redundant and well known patterns in spatial association rule mining (Vania Bogorny, João Valiati, Sandro Camargo, Paulo Engel  and Luis Otavio Alvares), In: Intelligent techniques and tools for novel system architectures, Berlin : Springer-Verlag, 2008 p. 343-360 (extended version of IEEE-IS 2006 paper)

2007


A Model for Enriching Trajectories with Semantic Geographical Information (Luis Otavio Alvares, Vania Bogorny, Bart Kuijpers, Jose Antonio F de Macedo, Bart Moelans  and Alejandro Vaisman ), Proc. of the ACM 15th International Symposium on Advances in Geographic Information Systems (ACM-GIS'07), Seattle, Washingthon, 7-9 November 2007, p.162-169.

Constructivist Anticipatory Learning Mechanism (CALM): dealing with partially deterministic and partially observable environments (Felipo Perotto, Jean-Christophe Buisson   and Luis Otavio Alvares), Proc. of the 7th International Conference on Epigenetic Robotics, Rutgers, USA, November 5-7, 2007.

Dynamic Modeling of Trajectory Patterns using Data Mining and Reverse Engineering (Luis Otavio Alvares, Vania Bogorny, Jose A. F. Macedo, Bart Moelans   and Stefano Spaccapietra), Proc. of the 28th International Conference on Conceptual Modeling (ER'07) - Tutorials, Posters, Panels and Industrial Contributions, Auckland, New Zealand, 5-9 November 2007, p.149-154.

Enhancing the Process of Knowledge Discovery in Geographic Databases using Geo-Ontologies (Vania Bogorny, Paulo Engel  and Luis Otavio Alvares), In: H.O. Nigro, S.G. Cisaro, D. Xodo (Ed.). Data Mining with Ontologies: Implementations, Findings, and Frameworks. Idea Group Inc., 2007.

On the Optimal Minimum Global Selection of Service Providers by Isolated Consumer Decision (Mauricio Menegaz, Luciano Kalisewski, Andrey Palma  and Luis Otavio Alvares), Proc. of the SBC ENIA 2007. Rio de Janeiro, Brazil, July 3-6, 2007.

Filtering frequent geographic patterns with qualitative spatial reasoning (Vania Bogorny, Bart Moelans  and Luis Otavio Alvares), Proc. of the IEEE ICDE International Workshop on Spatio-Temporal Data Mining (STDM'07). Istambul, Turkey, April 20, 2007, p.527-535.

Spatial Data Mining: From Theory to Practice with Free Software (Vania Bogorny, Andrey Palma, Bart Kuijpers  and Luis Otavio Alvares), Proc. of WSL International Workshop on Free Software (WSL'07). Porto Alegre, Brazil, 2007, p.205-212.

2006

Mining Maximal Generalized Frequent Geographic Patterns with Knowledge Constraints (Vania Bogorny, João Valiati, Sandro Camargo, Paulo Engel, Bart Kuijpers  and Luis Otavio Alvares), Proc. of the 6th IEEE International Conference on Data Mining (ICDM 2006), Hong Kong, China, December 18-22, 2006.

Incremental Inductive Learning in a Constructivist Agent (Felipo Perotto  and Luis Otavio Alvares), Proc. of the Twenty-sixth SGAI International Conference on Innovative Techniques and Applications of Artificial Intelligence (AI 2006), Cambridge, UK, December 11-13, 2006.

E-commerce recommenders' authority: applying the user's opinion relevance in recommender systems (Silvio Cazella, Eliseo Reategui and Luis Otavio Alvares), Proc. of the XII Brazilian Symposium on Multimedia and the Web, Natal, Brazil, November  19-22, 2006.

Mining Frequent Geographic Patterns with Knowledge Constraints (Vania Bogorny, Sandro Camargo, Paulo Engel  and Luis Otavio Alvares), Proc. of the ACM 14th International Symposium on Advances in Geographic Information Systems (ACM-GIS'06), Arlington, USA, November 10-11, 2006.

Towards Elimination of Well Known Geographic Patterns in Spatial Association Rule Mining (Vania Bogorny, Sandro Camargo, Paulo Engel  and Luis Otavio Alvares), Proc. of  the 3rd IEEE Conference On Intelligent Systems, London, UK, Sept. 4-6, 2006.

An Architecture based on multi-agent system and data mining for recommending research papers and researchers (Silvio Cazella and Luis Otavio Alvares), Proc. of the 18th International Conference on Software Engineering and Knowledge Engineering - SEKE´06, San Francisco, USA, July  5-7, 2006.

GeoARM: an Interoperable Framework to Improve Geographic Data Pre-processing and Spatial Association Rule Mining (Vania Bogorny, Paulo Engel  and Luis Otavio Alvares), Proc. of the 18th International Conference on Software Engineering and Knowledge Engineering - SEKE´06, San Francisco, USA, July  5-7, 2006.

Learning Environment Regularities with a Constructivist Agent (Filipo Perotto and Luis Otavio Alvares), Proc. of the 5th Joint Conference on Autonomous Agents and Multiagent Systems - AAMAS´06, Hakodate, Japan, May 8-12, 2006.

Behavior-Based Robotic Architectures for Games (Hugo Pinto and Luis Otavio Alvares), in Game Programming Gems 6, M. Dickheiser Ed., Charles River Media, Boston, USA, 2006.

Constructing a Goal-Oriented Robot for Unreal Tournament Using Fuzzy Sensors, Finite-State Machines, and Extended Behavior Networks (Hugo Pinto and Luis Otavio Alvares), in Game Programming Gems 6, M. Dickheiser Ed., Charles River Media, Boston, USA, 2006.

A Goal-Oriented Unreal Bot: Building a Game Agent with Goal-Oriented Behavior and Simple Personality Using Extended Behavior Networks (Hugo Pinto and Luis Otavio Alvares), in Game Programming Gems 6, M. Dickheiser Ed., Charles River Media, Boston, USA, 2006.

2005

Towards the Reduction of Spatial Joins for Knowledge Discovery in Geographic Databases Using Geo-Ontologies and Spatial Integrity Constraints (Vania Bogorny, Sandro Camargo, Paulo Engel  and Luis Otavio Alvares), Proc. of the ECML/PKDD  Second International Workshop on Knowledge Discovery and Ontologies, Porto, Portugal, Oct. 7, 2005.

An Extended Behavior Network for a Game Agent: An Investigation of Action Selection Quality and Agent Performance in Unreal Tournament (Hugo Pinto and Luis O. Alvares), Proc. of the 4th Mexicam International Conference on Artificial Intelligence, LNCS 3789, Monterrey, Mexico, Nov. 14-18, 2005.

Combining Data Mining Technique and Users'Relevance Opinion to Build an Efficient Recommender System (Silvio Cazella and Luis Otavio Alvares), Revista Tecnologia da Informação, 5(1), 2005.

Extended Behavior Networks and Agent Personality: Investigating the Design of Character Stereotypes in the Game Unreal Tournament (Hugo Pinto and Luis Otavio Alvares), Proc. of  the 5th International Conference on Intelligent Virtual Agents, LNCS 3661, Kos, Grece, Sept. 12-14, 2005.

A Reuse-Based Spatial Data Preparation Framework for Data Mining (Vania Bogorny, Paulo Engel  and Luis Otavio Alvares), Proc. of the 17th International Conference on Software Engineering and Knowledge Engineering - SEKE´05, Taipei, China, July  14-16, 2005.

ChicuxBot - Genetic Algorithm Configured Behaviour Network for Quake II (Francisco José Alegretti and Luis Otavio Alvares), Proceedings SBGAMES 2005 - Brazilian Symposium on Computer Games and Digital Entertainment, São Paulo, Brazil, Nov. 23-25, 2005.

A Alternativa Construtivista em Inteligência Artificial (Filipo Perotto and Luis Otavio Alvares), Proc. of the XXXI Conferência Latino Americana de Informatica, Cali, Colombia, Oct. 10-14, 2005 (in portuguese).

IGR-ANNOT: A Multi-agent System for InterGenic Regions Annotation (Sandro Camargo, João Valiatti, Luis Otavio Alvares and Paulo Engel), Proc. of the First International Symposium on  Mathematical and Computational Biology, Ilheus, Brazil, 2004.

An Autonomous Intelligent Agent Architecture Based on Constructivist AI (Filipo Perotto, Rosa Viccari and Luis Otavio Alvares), Proc. of the First International Conference on Artificial intelligence Applications and Innovations - IFIP 18th World Computer Congress, Toulouse, France, 2004.