This book constitutes the refereed proceedings of the 6th International Workshop on Ant Colony Optimization and Swarm Intelligence, ANTS 2008, held in Brussels, Belgium, in September 2008.

A Combined Ant Colony and Differential Evolution Feature Selection Algorithm.- A Combined Ant Colony and Differential Evolution Feature Selection Algorithm.- An Improved ACO Based Plug-in to Enhance the Interpretability of Fuzzy Rule Bases with Exceptions.- Ant Colony Optimization for Energy-Efficient Broadcasting in Ad-Hoc Networks.- Ant Colony Optimization for Genome-Wide Genetic Analysis.- cAnt-Miner: An Ant Colony Classification Algorithm to Cope with Continuous Attributes.- Finding Minimum Spanning/Distances Trees by Using River Formation Dynamics.- Gathering Multiple Robotic Agents with Crude Distance Sensing Capabilities.- Integration of ACO in a Constraint Programming Language.- Learning from House-Hunting Ants: Collective Decision-Making in Organic Computing Systems.- Modeling Phase Transition in Self-organized Mobile Robot Flocks.- Molecular Structure Elucidation Using Ant Colony Optimization: A Preliminary Study.- Rigorous Analyses for the Combination of Ant Colony Optimization and Local Search.- Simple Dynamic Particle Swarms without Velocity.- Swarming in a Virtual World: A PSO Approach to Virtual Camera Composition.- The Binary Bridge Selection Problem: Stochastic Approximations and the Convergence of a Learning Algorithm.- Two-Level ACO for Haplotype Inference Under Pure Parsimony.- What Hides in Dimension X? A Quest for Visualizing Particle Swarms.- Short Papers.- A Dynamic Swarm for Visual Location Tracking.- A Simulation Study of Routing Performance in Realistic Urban Scenarios for MANETs.- ACO-Based Scheduling of Parallel Batch Processing Machines with Incompatible Job Families to Minimize Total Weighted Tardiness.- Adaptive Particle Swarm Optimization.- Ant Based Heuristics for the Capacitated Fixed Charge Location Problem.- Ant Colony Optimizationand the Single Round Robin Maximum Value Problem.- Artificial Ants to Extract Leaf Outlines and Primary Venation Patterns.- Autonomous Reconfiguration in a Self-assembling Multi-robot System.- Beanbag Robotics: Robotic Swarms with 1-DoF Units.- BlåtAnt: Bounding Networks' Diameter with a Collaborative Distributed Algorithm.- Dependency by Concentration of Pheromone Trail for Multiple Robots.- Dissemination of Information with Fair Load Distribution in Self-organizing Grids.- Emergent Sorting in Networks of Router Agents.- Enhancing the Cooperative Transport of Multiple Objects.- Formal Modeling of BeeAdHoc: A Bio-inspired Mobile Ad Hoc Network Routing Protocol.- Incorporating Heuristics in a Swarm Intelligence Framework for Inferring Gene Regulatory Networks from Gene Expression Time Series.- Incorporating Preferences to a Multi-objective Ant Colony Algorithm for Time and Space Assembly Line Balancing.- KANTS: Artifical Ant System for Classification.- Lattice Formation in Space for a Swarm of Pico Satellites.- Merging Groups for the Exploration of Complex State Spaces in the CPSO Approach.- Parallel Ant Colony Optimization for the Quadratic Assignment Problems with Symmetric Multi Processing.- Social Odometry in Populations of Autonomous Robots.- The Architecture of Ant-Based Clustering to Improve Topographic Mapping.- The Small World of Pheromone Trails.- Extended Abstracts.- A Particle Swarm Optimization Algorithm for Multiuser Scheduling in HSDPA.- AntLib v1.0: A Generic C++ Framework for Ant Colony Optimization.- Applying a Distributed Swarm-Based Algorithm to Solve Instances of the RCPSP.- bicACO: An Ant Colony Inspired Biclustering Algorithm.- Dynamic Routing and Travel Time Prediction with Ant Based Control.- Network Formation Using Ant Colony Optimization.-On the Stability and the Parameters of Particle Swarm Optimization.- Regional Traffic Assignment by ACO.- SwarmClass: A Novel Data Clustering Approach by a Hybridization of an Ant Colony with Flying Insects.- The Differential Ant-Stigmergy Algorithm for Large Scale Real-Parameter Optimization.