Developments in Language Theory
11th International Conference, DLT 2007, Turku, Finland, July 3-6, 2007, Proceedings
Herausgegeben: Harju, Tero; Karhumäki, Juhani; Lepistö, Arto
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Invited Talks.- On First-Order Fragments for Words and Mazurkiewicz Traces.- Quantitative Generalizations of Languages.- What Do We Know About Language Equations?.- Information Distance and Applications.- Finite Automata and the Writing of Numbers.- Descriptional Complexity of Nondeterministic Finite Automata.- Contributed Papers.- From Determinism to Non-determinism in Recognizable Two-Dimensional Languages.- Coding Partitions: Regularity, Maximality and Global Ambiguity.- Multi-letter Reversible and Quantum Finite Automata.- Approximability and Non-approximability Results in Computing the Me...
Invited Talks.- On First-Order Fragments for Words and Mazurkiewicz Traces.- Quantitative Generalizations of Languages.- What Do We Know About Language Equations?.- Information Distance and Applications.- Finite Automata and the Writing of Numbers.- Descriptional Complexity of Nondeterministic Finite Automata.- Contributed Papers.- From Determinism to Non-determinism in Recognizable Two-Dimensional Languages.- Coding Partitions: Regularity, Maximality and Global Ambiguity.- Multi-letter Reversible and Quantum Finite Automata.- Approximability and Non-approximability Results in Computing the Mean Speedup of Trace Monoids.- The Dynamics of Cellular Automata in Shift-Invariant Topologies.- Two Element Unavoidable Sets of Partial Words.- Hairpin Finite Automata.- Characterizing Reduction Graphs for Gene Assembly in Ciliates.- 2-Visibly Pushdown Automata.- An Efficient Computation of the Equation -Automaton of a Regular -Expression.- An Extension of Newton's Method to ?-Continuous Semirings.- Non-constructive Methods for Finite Probabilistic Automata.- The Unambiguity of Segmented Morphisms.- Commutation of Binary Factorial Languages.- Inapproximability of Nondeterministic State and Transition Complexity Assuming P???NP.- State Complexity of Union and Intersection of Finite Languages.- Bisimulation Minimisation for Weighted Tree Automata.- Conjunctive Grammars Can Generate Non-regular Unary Languages.- Deterministic Blow-Ups of Minimal Nondeterministic Finite Automata over a Fixed Alphabet.- Reduced Languages as ?-Generators.- Avoiding Approximate Squares.- Duplication Roots.- Complexity Theory for Splicing Systems.- Descriptional Complexity of Bounded Context-Free Languages.- Definable Transductions and Weighted Logics for Texts.- A Star Operation forStar-Free Trace Languages.- Finite Automata on Unranked and Unordered DAGs.- On Almost Periodicity Criteria for Morphic Sequences in Some Particular Cases.- A Local Balance Property of Episturmian Words.- Suffix Automata and Standard Sturmian Words.- Fine Hierarchy of Regular Aperiodic ?-Languages.- On Transition Minimality of Bideterministic Automata.
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