Constitutes the refereed proceedings of the 12th Conference of the Spanish Association for Artificial Intelligence, CAEPIA 2007, held in Salamanca, Spain, in November 2007, in conjunction with the 7th Workshop on Artificial Intelligence Technology Transfer, TTIA 2007. This book includes papers that address issues of artificial intelligence.

Fast and Informed Action Selection for Planning with Sensing.- Stacking Dynamic Time Warping for the Diagnosis of Dynamic Systems.- Retrieval of Relevant Concepts from a Text Collection.- Interoperable Bayesian Agents for Collaborative Learning Environments.- Knowledge Engineering and Planning for the Automated Synthesis of Customized Learning Designs.- On the Initialization of Two-Stage Clustering with Class-GTM.- Three-Dimensional Anisotropic Noise Reduction with Automated Parameter Tuning: Application to Electron Cryotomography.- A Middle-Ware for the Automated Composition and Invocation of Semantic Web Services Based on Temporal HTN Planning Techniques.- A Multiobjective Approach to Fuzzy Job Shop Problem Using Genetic Algorithms.- CTC: An Alternative to Extract Explanation from Bagging.- Ranking Attributes Using Learning of Preferences by Means of SVM.- Improving HLRTA*(k).- Sliding Mode Control of a Wastewater Plant with Neural Networks and Genetic Algorithms.- Efficient Pruning of Operators in Planning Domains.- Heuristics for Planning with Action Costs.- Mixed Narrative and Dialog Content Planning Based on BDI Agents.- NMUS: Structural Analysis for Improving the Derivation of All MUSes in Overconstrained Numeric CSPs.- Interest Point Detectors for Visual SLAM.- TBL Template Selection: An Evolutionary Approach.- Finiteness Properties of Some Families of GP-Trees.- A Workflow for the Networked Ontologies Lifecycle: A Case Study in FAO of the UN.- A Logic for Order of Magnitude Reasoning with Negligibility, Non-closeness and Distance.- A Solution to the Rural Postman Problem Based on Artificial Ant Colonies.- Olive Fly Infestation Prediction Using Machine Learning Techniques.- Feature Selection Based on Sensitivity Analysis.- Fitness Function Comparison for GA-Based Feature Construction.- Generation of OWL Ontologies from Concept Maps in Shallow Domains.- Effectiveness Study of Lexically Mapping Two Thesauri.

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