Presents the refereed technical papers presented at AI-2008, the Twenty-eighth SGAI International Conference on Innovative Techniques and Applications of Artificial Intelligence, held in Cambridge in December 2008. This volume also includes the text of short papers presented as posters at the conference.

Best Technical Paper.- On the Classification Performance of TAN and General Bayesian Networks.- CBR and Classification.- Code Tagging and Similarity-based Retrieval with myCBR.- Sparse Representations for Pattern Classification using Learned Dictionaries.- Qualitative Hidden Markov Models for Classifying Gene Expression Data.- Description Identification and the Consistency Problem.- AI Techniques.- Analysing the Effect of Demand Uncertainty in Dynamic Pricing with EAs.- Restart-Based Genetic Algorithm for the Quadratic Assignment Problem.- Constraint Satisfaction and Fixes: Revisiting Sisyphus VT.- On a Control Parameter Free Optimization Algorithm.- Argumentation And Negotiation.- PISA — Pooling Information from Several Agents: Multiplayer Argumentation from Experience.- Agent-Based Negotiation in Uncertain Environments.- Automated Bilateral Negotiation and Bargaining Impasse.- Intelligent Systems.- Exploring Design Space For An Integrated Intelligent System.- A User-Extensible and Adaptable Parser Architecture.- The Reactive-Causal Architecture: Introducing an Emotion Model along with Theories of Needs.- Automation of the Solution of Kakuro Puzzles.- From Machine Learning to E-Learning.- The Bayesian Learning Automaton — Empirical Evaluation with Two-Armed Bernoulli Bandit Problems.- Discovering Implicit Intention-Level Knowledge from Natural-Language Texts.- EMADS: An Extendible Multi-Agent Data Miner.- Designing a Feedback Component of an Intelligent Tutoring System for Foreign Language.- Decision Making.- An Algorithm for Anticipating Future Decision Trees from Concept-Drifting Data.- Polarity Assignment to Causal Information Extracted from Financial Articles Concerning Business Performance of Companies.- Redux exp : An Open-source Justification-basedExplanation Support Server.- Short Papers.- Immunity-based hybrid evolutionary algorithm for multi-objective optimization.- Parallel Induction of Modular Classification Rules.- Transform Ranking: a New Method of Fitness Scaling in Genetic Algorithms.- Architecture of Knowledge-based Function Approximator.- Applying Planning Algorithms to Argue in Cooperative Work.- Universum Inference and Corpus Homogeneity.

The papers in this volume are the refereed technical papers presented at AI-2008, the Twenty-eighth SGAI International Conference on Innovative Techniques and Applications of Artificial Intelligence, held in Cambridge in December 2008. They present new and innovative developments in the field, divided into sections on CBR and Classification, AI Techniques, Argumentation and Negotiation, Intelligent Systems, From Machine Learning To E-Learning and Decision Making. The volume also includes the text of short papers presented as posters at the conference. This is the twenty-fifth volume in the Research and Development series. The series is essential reading for those who wish to keep up to date with developments in this important field. The Application Stream papers are published as a companion volume under the title Applications and Innovations in Intelligent Systems XVI.