Advances in Artificial Intelligence - IBERAMIA 2008

1. Multiagent Systems

   1. Hybrid Multi-agent Architecture (HoCa) Applied to the Control and Supervision of Patients in Their Homes

      • Juan A. Fraile, Javier Bajo, Juan M. Corchado

      Pages 193-202

   2. Mixing Greedy and Evolutive Approaches to Improve Pursuit Strategies

      • Juan Reverte, Francisco Gallego, Rosana Satorre, Faraón Llorens

      Pages 203-212

   3. The Evolution of Negotiation and Impasse in Two-Party Multi-issue Bargaining

      • Fernando Lopes, A. Q. Novais, Helder Coelho

      Pages 213-222

   4. Characters with Character

      • Isabel Machado Alexandre

      Pages 223-232

2. Natural Language Processing

   1. Automatic Generalization of a QA Answer Extraction Module Based on Semantic Roles

      • P. Moreda, H. Llorens, E. Saquete, M. Palomar

      Pages 233-242

   2. A Multilingual Application for Automated Essay Scoring

      • Daniel Castro-Castro, Rocío Lannes-Losada, Montse Maritxalar, Ianire Niebla, Celia Pérez-Marqués, Nancy C. Álamo-Suárez et al.

      Pages 243-251

   3. Combining Frequent and Discriminating Attributes in the Generation of Definite Descriptions

      • Diego Jesus de Lucena, Ivandré Paraboni

      Pages 252-261

   4. A Machine Learning Approach to Portuguese Pronoun Resolution

      • Ramon Ré Moya Cuevas, Ivandré Paraboni

      Pages 262-271

   5. Text Classification on Embedded Manifolds

      • Catarina Silva, Bernardete Ribeiro

      Pages 272-281

   6. An Improved Connectionist Translator between Natural Languages

      • Gustavo A. Casañ, Maria Asunción Castaño

      Pages 282-291

3. Intelligent Information Systems and NLP

   1. A Framework for Information Retrieval Based on Fuzzy Relations and Multiple Ontologies

      • Maria Angelica A. Leite, Ivan L. M. Ricarte

      Pages 292-301

   2. Recommendation System for Automatic Recovery of Broken Web Links

      • Juan Martinez-Romo, Lourdes Araujo

      Pages 302-311

   3. Conceptual Subtopic Identification in the Medical Domain

      • Rafael Berlanga-Llavori, Henry Anaya-Sánchez, Aurora Pons-Porrata, Ernesto Jiménez-Ruiz

      Pages 312-321

   4. Real-Time Open-Domain QA on the Portuguese Web

      • António Branco, Lino Rodrigues, João Silva, Sara Silveira

      Pages 322-331

   5. Hyponymy Extraction and Web Search Behavior Analysis Based on Query Reformulation

      • Rui P. Costa, Nuno Seco

      Pages 332-341

   6. Semantics of Place: Ontology Enrichment

      • Bruno Antunes, Ana Alves, Francisco C. Pereira

      Pages 342-351

   7. Explicit Dynamic User Profiles for a Collaborative Filtering Recommender System

      • M. Ilic, J. Leite, M. Slota

      Pages 352-361

   8. Text Retrieval through Corrupted Queries

      • Juan Otero, Jesús Vilares, Manuel Vilares

      Pages 362-371

4. Robotics

   1. Dynamic Velocity Field Angle Generation for Obstacle Avoidance in Mobile Robots Using Hydrodynamics

      • Claudia Pérez-D’Arpino, Wilfredis Medina-Meléndez, Leonardo Fermín, José Guzmán, Gerardo Fernández-López, Juan Carlos Grieco

      Pages 372-381

   2. Motion Planning for Cooperative Multi-robot Box-Pushing Problem

      • Ezra Federico Parra-González, Gabriel Ramírez-Torres, Gregorio Toscano-Pulido

      Pages 382-391

IBERAMIA is the international conference series of the Ibero-American Art- cialIntelligencecommunitythathasbeenmeetingeverytwoyearssincethe1988 meeting in Barcelona. The conference is supported by the main Ibero-American societies of AI and provides researchers from Portugal, Spain, and Latin Am- ica the opportunity to meet with AI researchers from all over the world. Since 1998, IBERAMIA has been a widely recognized international conference, with its papers written and presented in English, and its proceedings published by Springer in the LNAI series. This volume contains the papers accepted for presentation at Iberamia 2008, held in Lisbon, Portugal in October 2008. For this conference, 147 papers were submitted for the main track, and 46 papers were accepted. Each submitted paper was reviewed by three members of the Program Committee (PC), coor- nated by an Area Chair. In certain cases, extra reviewerswererecruited to write additional reviews. The list of Area Chairs, PC members, and reviewers can be found on the pages that follow. The authors of the submitted papers represent 14 countries with topics c- ering the whole spectrum of themes in AI: robotics and multiagent systems, knowledge representation and constraints, machine learning and planning, n- ural language processing and AI applications. TheprogramforIberamia2008alsoincludedthreeinvitedspeakers:Christian Lemaitre (LANIA, M´ exico), R. Michael Young (NCSU, USA) and Miguel Dias (Microsoft LDMC, Lisbon) as well as ?ve workshops.

• Constraint Satisfaction
• artificial intelligence
• information system
• intelligence
• knowledge representation
• machine learning
• natural language
• optimization
• probabilistic reasoning
• robot
• robotics
• scheduling

• ICREA & Universitat Pompeu Fabra, Barcelona, Spain

  Hector Geffner

• IST-UTL and INESC-ID, Porto Salvo, Portugal

  Rui Prada

• ADETTI/ISCTE and ISCTE, Lisbon University Institute, Lisbon, Portugal

  Isabel Machado Alexandre, Nuno David

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