Algebraic Informatics [electronic resource] : Second International Conference, CAI 2007, Thessaloniki, Greece, May 21-25, 2007, Revised Selected and Invited Papers / edited by Symeon Bozapalidis, George Rahonis.

Invited Papers -- On Generalizations of Weighted Finite Automata and Graphics Applications -- Sturmian and Episturmian Words -- From Tree-Based Generators to Delegation Networks -- Bifinite Chu Spaces -- Tiling Recognizable Two-Dimensional Languages -- Algebraic Methods in Quantum Informatics -- Recognizable vs. Regular Picture Languages -- From Algebraic Graph Transformation to Adhesive HLR Categories and Systems -- Contributed Papers -- Deterministic Two-Dimensional Languages over One-Letter Alphabet -- Recognizable Picture Languages and Polyominoes -- An Algebra for Tree-Based Music Generation -- Aperiodicity in Tree Automata -- The Syntactic Complexity of Eulerian Graphs -- Learning Deterministically Recognizable Tree Series — Revisited -- The Second Eigenvalue of Random Walks On Symmetric Random Intersection Graphs -- Verifying Security Protocols for Sensor Networks Using Algebraic Specification Techniques -- Nonassociativity à la Kleene -- Restarting Tree Automata and Linear Context-Free Tree Languages.