Contact:

Picture of Helmut Seidl

Prof. Dr. Helmut Seidl

Research Interests

  • Automatic Program Analysis
  • Design und Implementation of Programming Languages
  • Semi-structured Data
  • Tree-Automata

Publications

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Enforcing termination of interprocedural analysis.

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Enforcing termination of interprocedural analysis. Formal Methods in System Design 53(2): 313-338 ()
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Balancedness of MSO transductions in polynomial time.

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Balancedness of MSO transductions in polynomial time. Inf. Process. Lett. 133: 26-32 ()
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Equivalence of Deterministic Top-Down Tree-to-String Transducers Is Decidable.

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Equivalence of Deterministic Top-Down Tree-to-String Transducers Is Decidable. J. ACM 65(4): 21:1-21:30 ()
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Paths, tree homomorphisms and disequalities for -clauses.

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Paths, tree homomorphisms and disequalities for -clauses. Mathematical Structures in Computer Science 28(10): 1786-1846 ()
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Inductive Invariants for Noninterference in Multi-agent Workflows.

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Inductive Invariants for Noninterference in Multi-agent Workflows. CSF : 247-261
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Three Improvements to the Top-Down Solver.

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Three Improvements to the Top-Down Solver. PPDP : 21:1-21:14
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Computing the Longest Common Prefix of a Context-free Language in Polynomial Time.

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Computing the Longest Common Prefix of a Context-free Language in Polynomial Time. STACS : 48:1-48:13
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Inter-procedural Two-Variable Herbrand Equalities.

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Inter-procedural Two-Variable Herbrand Equalities. Logical Methods in Computer Science 13(2) ()
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Proving Absence of Starvation by Means of Abstract Interpretation and Model Checking.

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Proving Absence of Starvation by Means of Abstract Interpretation and Model Checking. ATVA : 3-22
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Verifying Security Policies in Multi-agent Workflows with Loops.

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Verifying Security Policies in Multi-agent Workflows with Loops. ACM Conference on Computer and Communications Security : 633-645
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Reachability for Dynamic Parametric Processes.

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Reachability for Dynamic Parametric Processes. VMCAI : 424-441
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Computing the longest common prefix of a context-free language in polynomial time.

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Computing the longest common prefix of a context-free language in polynomial time. CoRR abs/1702.06698 ()
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Verifying Security Policies in Multi-agent Workflows with Loops.

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Verifying Security Policies in Multi-agent Workflows with Loops. CoRR abs/1708.09013 ()
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Formal Methods of Transformations (Dagstuhl Seminar 17142).

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Formal Methods of Transformations (Dagstuhl Seminar 17142). Dagstuhl Reports 7(4): 23-37 ()
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Efficiently intertwining widening and narrowing.

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Efficiently intertwining widening and narrowing. Sci. Comput. Program. 120: 1-24 ()
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Look-ahead removal for total deterministic top-down tree transducers.

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Look-ahead removal for total deterministic top-down tree transducers. Theor. Comput. Sci. 616: 18-58 ()
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Specifying and Verifying Secrecy in Workflows with Arbitrarily Many Agents.

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Specifying and Verifying Secrecy in Workflows with Arbitrarily Many Agents. ATVA : 157-173
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Enhancing Top-Down Solving with Widening and Narrowing.

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Enhancing Top-Down Solving with Widening and Narrowing. Semantics, Logics, and Calculi : 272-288
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Static race detection for device drivers: the Goblint approach.

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Static race detection for device drivers: the Goblint approach. ASE : 391-402
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Enforcing Termination of Interprocedural Analysis.

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Enforcing Termination of Interprocedural Analysis. SAS : 447-468
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Equivalence - Combinatorics, Algebra, Proofs.


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Enforcing Termination of Interprocedural Analysis.

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Enforcing Termination of Interprocedural Analysis. CoRR abs/1606.07687 ()
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Reachability for dynamic parametric processes.

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Reachability for dynamic parametric processes. CoRR abs/1609.05385 ()
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An Analysis of Universal Information Flow Based on Self-Composition.

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An Analysis of Universal Information Flow Based on Self-Composition. CSF : 380-393
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Inter-procedural Two-Variable Herbrand Equalities.

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Inter-procedural Two-Variable Herbrand Equalities. ESOP : 457-482
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Equivalence of Deterministic Top-Down Tree-to-String Transducers is Decidable.

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Equivalence of Deterministic Top-Down Tree-to-String Transducers is Decidable. FOCS : 943-962
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Transforming XML Streams with References.

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Transforming XML Streams with References. SPIRE : 33-45
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Efficiently intertwining widening and narrowing.

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Efficiently intertwining widening and narrowing. CoRR abs/1503.00883 ()
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Equivalence of Deterministic Top-Down Tree-to-String Transducers is Decidable.

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Equivalence of Deterministic Top-Down Tree-to-String Transducers is Decidable. CoRR abs/1503.09163 ()
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Numerical invariants through convex relaxation and max-strategy iteration.

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Numerical invariants through convex relaxation and max-strategy iteration. Formal Methods in System Design 44(2): 101-148 ()
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How to Remove the Look-Ahead of Top-Down Tree Transducers.

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How to Remove the Look-Ahead of Top-Down Tree Transducers. Developments in Language Theory : 103-115
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Interprocedural Information Flow Analysis of XML Processors.

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Interprocedural Information Flow Analysis of XML Processors. LATA : 34-61
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Parametric Strategy Iteration.

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Parametric Strategy Iteration. SCSS : 62-76
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Precise Analysis of Value-Dependent Synchronization in Priority Scheduled Programs.

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Precise Analysis of Value-Dependent Synchronization in Priority Scheduled Programs. VMCAI : 21-38
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Frameworks for Interprocedural Analysis of Concurrent Programs.

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Frameworks for Interprocedural Analysis of Concurrent Programs. Software Systems Safety : 309-347
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Static Analysis - 21st International Symposium, SAS 2014, Munich, Germany, September 11-13, 2014. Proceedings.

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Static Analysis - 21st International Symposium, SAS 2014, Munich, Germany, September 11-13, 2014. Proceedings. Lecture Notes in Computer Science 8723, Springer , ISBN 978-3-319-10935-0 [contents]
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Software Systems Safety.


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Parametric Strategy Iteration.


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Inter-procedural Two-Variable Herbrand Equalities.

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Inter-procedural Two-Variable Herbrand Equalities. CoRR abs/1410.4416 ()
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Compiler Design - Syntactic and Semantic Analysis.

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Compiler Design - Syntactic and Semantic Analysis. Springer , ISBN 978-3-642-17539-8, pp. I-X, 1-225
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Relational abstract interpretation for the verification of 2-hypersafety properties.

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Relational abstract interpretation for the verification of 2-hypersafety properties. ACM Conference on Computer and Communications Security : 211-222
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How to combine widening and narrowing for non-monotonic systems of equations.

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How to combine widening and narrowing for non-monotonic systems of equations. PLDI : 377-386
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Contextual Locking for Dynamic Pushdown Networks.

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Contextual Locking for Dynamic Pushdown Networks. SAS : 477-498
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Look-Ahead Removal for Top-Down Tree Transducers.

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Look-Ahead Removal for Top-Down Tree Transducers. CoRR abs/1311.2400 ()
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Tree Transducers and Formal Methods (Dagstuhl Seminar 13192).

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Tree Transducers and Formal Methods (Dagstuhl Seminar 13192). Dagstuhl Reports 3(5): 1-18 ()
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Compiler Design - Analysis and Transformation.

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Compiler Design - Analysis and Transformation. Springer , ISBN 978-3-642-17547-3, pp. I-XII, 1-177
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Abstract interpretation meets convex optimization.

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Abstract interpretation meets convex optimization. J. Symb. Comput. 47(12): 1416-1446 ()
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Side-Effecting Constraint Systems: A Swiss Army Knife for Program Analysis.

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Side-Effecting Constraint Systems: A Swiss Army Knife for Program Analysis. APLAS : 157-172
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Runtime Enforcement of Information Flow Security in Tree Manipulating Processes.

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Runtime Enforcement of Information Flow Security in Tree Manipulating Processes. ESSoS : 46-59
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Extending ${\cal H}_1$ -Clauses with Path Disequalities.

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Extending ${\cal H}_1$ -Clauses with Path Disequalities. FoSSaCS : 165-179
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Model Checking Information Flow in Reactive Systems.

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Model Checking Information Flow in Reactive Systems. VMCAI : 169-185
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Crossing the Syntactic Barrier: Hom-Disequalities for H1-Clauses.

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Crossing the Syntactic Barrier: Hom-Disequalities for H1-Clauses. CIAA : 301-312
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Type Checking of Tree Walking Transducers.

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Type Checking of Tree Walking Transducers. Modern Applications of Automata Theory : 325-372
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Precise Program Analysis through Strategy Iteration and Optimization.

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Precise Program Analysis through Strategy Iteration and Optimization. Software Safety and Security : 348-384
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Programming Languages and Systems - 21st European Symposium on Programming, ESOP 2012, Held as Part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2012, Tallinn, Estonia, March 24 - April 1, 2012. Proceedings.

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Programming Languages and Systems - 21st European Symposium on Programming, ESOP 2012, Held as Part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2012, Tallinn, Estonia, March 24 - April 1, 2012. Proceedings. Lecture Notes in Computer Science 7211, Springer , ISBN 978-3-642-28868-5 [contents]
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Numerical Invariants through Convex Relaxation and Max-Strategy Iteration.

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Numerical Invariants through Convex Relaxation and Max-Strategy Iteration. CoRR abs/1204.1147 ()
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Earliest Normal Form and Minimization for Bottom-up Tree Transducers.

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Earliest Normal Form and Minimization for Bottom-up Tree Transducers. Int. J. Found. Comput. Sci. 22(7): 1607-1623 ()
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Extending H1-clauses with disequalities.

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Extending H1-clauses with disequalities. Inf. Process. Lett. 111(20): 1007-1013 ()
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Solving systems of rational equations through strategy iteration.

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Solving systems of rational equations through strategy iteration. ACM Trans. Program. Lang. Syst. 33(3): 11:1-11:48 ()
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Fast interprocedural linear two-variable equalities.

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Fast interprocedural linear two-variable equalities. ACM Trans. Program. Lang. Syst. 33(6): 21:1-21:33 ()
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Static analysis of interrupt-driven programs synchronized via the priority ceiling protocol.

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Static analysis of interrupt-driven programs synchronized via the priority ceiling protocol. POPL : 93-104
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Side-Effect Analysis of Assembly Code.

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Side-Effect Analysis of Assembly Code. SAS : 77-94
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Join-Lock-Sensitive Forward Reachability Analysis for Concurrent Programs with Dynamic Process Creation.

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Join-Lock-Sensitive Forward Reachability Analysis for Concurrent Programs with Dynamic Process Creation. VMCAI : 199-213
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Compiler Design - Virtual Machines.

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Compiler Design - Virtual Machines. Springer , ISBN 978-3-642-14908-5, pp. I-XIII, 1-187
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Praktische Programmverifikation durch statische Analyse.

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Praktische Programmverifikation durch statische Analyse. Informatik Spektrum 33(5): 484-488 ()
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Interprocedural Control Flow Reconstruction.

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Interprocedural Control Flow Reconstruction. APLAS : 188-203
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Abstract Interpretation over Zones without Widening.

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Abstract Interpretation over Zones without Widening. WING@ETAPS/IJCAR : 12-43
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Minimization of Deterministic Bottom-Up Tree Transducers.

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Minimization of Deterministic Bottom-Up Tree Transducers. Developments in Language Theory : 185-196
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What Is a Pure Functional?

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What Is a Pure Functional? ICALP (2) : 199-210
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Bottom-Up Tree Automata with Term Constraints.

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Bottom-Up Tree Automata with Term Constraints. LPAR (Yogyakarta) : 581-593
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Computing Relaxed Abstract Semantics w.r.t. Quadratic Zones Precisely.

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Computing Relaxed Abstract Semantics w.r.t. Quadratic Zones Precisely. SAS : 271-286
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Verifying a Local Generic Solver in Coq.

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Verifying a Local Generic Solver in Coq. SAS : 340-355
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Normalization of Linear Horn Clauses.

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Normalization of Linear Horn Clauses. SBMF : 242-257
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Shape Analysis of Low-Level C with Overlapping Structures.

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Shape Analysis of Low-Level C with Overlapping Structures. VMCAI : 214-230
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Deciding equivalence of top-down XML transformations in polynomial time.

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Deciding equivalence of top-down XML transformations in polynomial time. J. Comput. Syst. Sci. 75(5): 271-286 ()
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Polynomial Precise Interval Analysis Revisited.


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Games through Nested Fixpoints.

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Games through Nested Fixpoints. CAV : 291-305
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A Smooth Combination of Linear and Herbrand Equalities for Polynomial Time Must-Alias Analysis.

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A Smooth Combination of Linear and Herbrand Equalities for Polynomial Time Must-Alias Analysis. FM : 644-659
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Flat and One-Variable Clauses for Single Blind Copying Protocols: The XOR Case.

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Flat and One-Variable Clauses for Single Blind Copying Protocols: The XOR Case. RTA : 118-132
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Region Analysis for Race Detection.

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Region Analysis for Race Detection. SAS : 171-187
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Program Analysis through Finite Tree Automata.

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Program Analysis through Finite Tree Automata. CIAA : 3
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Flat and one-variable clauses: Complexity of verifying cryptographic protocols with single blind copying.

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Flat and one-variable clauses: Complexity of verifying cryptographic protocols with single blind copying. ACM Trans. Comput. Log. 9(4): 28:1-28:45 ()
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Counting in trees.


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Upper Adjoints for Fast Inter-procedural Variable Equalities.

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Upper Adjoints for Fast Inter-procedural Variable Equalities. ESOP : 178-192
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Precise Interval Analysis vs. Parity Games.

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Precise Interval Analysis vs. Parity Games. FM : 342-357
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Lightweight Verification 2008.

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Lightweight Verification 2008. GI Jahrestagung (2) : 965-966
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Approximative Methods for Monotone Systems of Min-Max-Polynomial Equations.

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Approximative Methods for Monotone Systems of Min-Max-Polynomial Equations. ICALP (1) : 698-710
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Analysing All Polynomial Equations in .

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Analysing All Polynomial Equations in . SAS : 299-314
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Analysis of modular arithmetic.

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Analysis of modular arithmetic. ACM Trans. Program. Lang. Syst. 29(5): 29 ()
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Computing Game Values for Crash Games.

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Computing Game Values for Crash Games. ATVA : 177-191
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Precise Relational Invariants Through Strategy Iteration.

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Precise Relational Invariants Through Strategy Iteration. CSL : 23-40
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Interprocedurally Analysing Linear Inequality Relations.

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Interprocedurally Analysing Linear Inequality Relations. ESOP : 284-299
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Precise Fixpoint Computation Through Strategy Iteration.

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Precise Fixpoint Computation Through Strategy Iteration. ESOP : 300-315
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Exact XML Type Checking in Polynomial Time.

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Exact XML Type Checking in Polynomial Time. ICDT : 254-268
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Deciding Equivalence of Top-Down XML Transformations in Polynomial Time.

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Deciding Equivalence of Top-Down XML Transformations in Polynomial Time. PLAN-X : 73-79
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Foundations of Software Science and Computational Structures, 10th International Conference, FOSSACS 2007, Held as Part of the Joint European Conferences on Theory and Practice of Software, ETAPS 2007, Braga, Portugal, March 24-April 1, 2007, Proceedings.

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Foundations of Software Science and Computational Structures, 10th International Conference, FOSSACS 2007, Held as Part of the Joint European Conferences on Theory and Practice of Software, ETAPS 2007, Braga, Portugal, March 24-April 1, 2007, Proceedings. Lecture Notes in Computer Science 4423, Springer , ISBN 978-3-540-71388-3 [contents]
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Infinite-state high-level MSCs: Model-checking and realizability.

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Infinite-state high-level MSCs: Model-checking and realizability. J. Comput. Syst. Sci. 72(4): 617-647 ()
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Cryptographic Protocol Verification Using Tractable Classes of Horn Clauses.

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Cryptographic Protocol Verification Using Tractable Classes of Horn Clauses. Program Analysis and Compilation : 97-119
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Interprocedurally Analyzing Polynomial Identities.

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Interprocedurally Analyzing Polynomial Identities. STACS : 50-67
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Exact XML Type Checking in Polynomial Time.

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Exact XML Type Checking in Polynomial Time. Universität Trier, Mathematik/Informatik, Forschungsbericht 06-04 ()
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On the Complexity of Equational Horn Clauses.

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On the Complexity of Equational Horn Clauses. CADE : 337-352
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Interprocedural Herbrand Equalities.

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Interprocedural Herbrand Equalities. ESOP : 31-45
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Analysis of Modular Arithmetic.

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Analysis of Modular Arithmetic. ESOP : 46-60
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XML type checking with macro tree transducers.

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XML type checking with macro tree transducers. PODS : 283-294
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A Generic Framework for Interprocedural Analysis of Numerical Properties.

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A Generic Framework for Interprocedural Analysis of Numerical Properties. SAS : 235-250
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Checking Herbrand Equalities and Beyond.

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Checking Herbrand Equalities and Beyond. VMCAI : 79-96
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Flat and One-Variable Clauses: Complexity of Verifying Cryptographic Protocols with Single Blind Copying.

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Flat and One-Variable Clauses: Complexity of Verifying Cryptographic Protocols with Single Blind Copying. CoRR abs/cs/0511014 ()
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Macro forest transducers.

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Macro forest transducers. Inf. Process. Lett. 89(3): 141-149 ()
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Computing polynomial program invariants.

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Computing polynomial program invariants. Inf. Process. Lett. 91(5): 233-244 ()
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Binary Queries for Document Trees.

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Binary Queries for Document Trees. Nord. J. Comput. 11(1): 41-71 ()
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Annotiertes Lecture Recording.

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Annotiertes Lecture Recording. DeLFI : 43-54
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A Note on Karr's Algorithm.

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A Note on Karr's Algorithm. ICALP : 1016-1028
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Counting in Trees for Free.

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Counting in Trees for Free. ICALP : 1136-1149
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Flat and One-Variable Clauses: Complexity of Verifying Cryptographic Protocols with Single Blind Copying.

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Flat and One-Variable Clauses: Complexity of Verifying Cryptographic Protocols with Single Blind Copying. LPAR : 79-94
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A Generic Framework for Interprocedural Analyses of Numerical Properties.

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A Generic Framework for Interprocedural Analyses of Numerical Properties. LPAR : 432-432
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Precise interprocedural analysis through linear algebra.

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Precise interprocedural analysis through linear algebra. POPL : 330-341
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The Succinct Solver Suite.


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(Linear) Algebra for Program Analysis Dynamische Programmanalyse.

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(Linear) Algebra for Program Analysis Dynamische Programmanalyse. Softwaretechnik-Trends 23(2) ()
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Numerical document queries.

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Numerical document queries. PODS : 155-166
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A Succinct Solver for ALFP.

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A Succinct Solver for ALFP. Nord. J. Comput. 9(4): 335-372 ()
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Transparent teleteaching.

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Transparent teleteaching. ASCILITE : 749-758
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Automatic Complexity Analysis.

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Automatic Complexity Analysis. ESOP : 243-261
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Binary Queries.


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A Type-safe Macro System for XML.

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A Type-safe Macro System for XML. Extreme Markup Languages®
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Infinite-State High-Level MSCs: Model-Checking and Realizability.

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Infinite-State High-Level MSCs: Model-Checking and Realizability. ICALP : 657-668
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Polynomial Constants Are Decidable.

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Polynomial Constants Are Decidable. SAS : 4-19
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Normalizable Horn Clauses, Strongly Recognizable Relations, and Spi.

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Normalizable Horn Clauses, Strongly Recognizable Relations, and Spi. SAS : 20-35
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Polynomial Constants are Decidable.

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Polynomial Constants are Decidable. Universität Trier, Mathematik/Informatik, Forschungsbericht 02-09 ()
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Interprocedural Invariants.

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Interprocedural Invariants. Universität Trier, Mathematik/Informatik, Forschungsbericht 02-10 ()
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On the Expressiveness of Tree Set Operators.

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On the Expressiveness of Tree Set Operators. Universität Trier, Mathematik/Informatik, Forschungsbericht 02-17 ()
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Cryptographic Analysis in Cubic Time.

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Cryptographic Analysis in Cubic Time. Electr. Notes Theor. Comput. Sci. 62: 7-23 ()
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Control-Flow Analysis in Cubic Time.

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Control-Flow Analysis in Cubic Time. ESOP : 252-268
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Synchronized Tree Languages Revisited and New Applications.

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Synchronized Tree Languages Revisited and New Applications. FoSSaCS : 214-229
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Weakly Regular Relations and Applications.

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Weakly Regular Relations and Applications. RTA : 185-200
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On optimal slicing of parallel programs.

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On optimal slicing of parallel programs. STOC : 647-656
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Succinct Solvers.

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Succinct Solvers. Universität Trier, Mathematik/Informatik, Forschungsbericht 01-12 ()
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Interprocedural Analyses: A Comparison.

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Interprocedural Analyses: A Comparison. J. Log. Program. 43(2): 123-156 ()
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Constraint-Based Inter-Procedural Analysis of Parallel Programs.

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Constraint-Based Inter-Procedural Analysis of Parallel Programs. Nord. J. Comput. 7(4): 375- ()
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Constraint-Based Inter-Procedural Analysis of Parallel Programs.

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Constraint-Based Inter-Procedural Analysis of Parallel Programs. ESOP : 351-365
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On distributive fixed-point expressions.

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On distributive fixed-point expressions. ITA 33(4/5): 427-446 ()
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A Faster Solver for General Systems of Equations.

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A Faster Solver for General Systems of Equations. Sci. Comput. Program. 35(2): 137-161 ()
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On Guarding Nested Fixpoints.

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On Guarding Nested Fixpoints. CSL : 484-498
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ForkLight: A Control-Synchronous Parallel Programming Language.

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ForkLight: A Control-Synchronous Parallel Programming Language. HPCN Europe : 525-534
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The SPARAMAT Approach to Automatic Comprehension of Sparse Matrix Computations.

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The SPARAMAT Approach to Automatic Comprehension of Sparse Matrix Computations. Universität Trier, Mathematik/Informatik, Forschungsbericht 99-10 ()
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Propagating Differences: An Efficient New Fixpoint Algorithm for Distributive Constraint Systems.

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Propagating Differences: An Efficient New Fixpoint Algorithm for Distributive Constraint Systems. Nord. J. Comput. 5(4): 304-329 ()
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Constraints to Stop Deforestation.

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Constraints to Stop Deforestation. Sci. Comput. Program. 32(1-3): 73-107 ()
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Propagating Differences: An Efficient New Fixpoint Algorithm for Distributive Constraint Systems.

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Propagating Differences: An Efficient New Fixpoint Algorithm for Distributive Constraint Systems. ESOP : 90-104
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Locating Matches of Tree Patterns in Forests.

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Locating Matches of Tree Patterns in Forests. FSTTCS : 134-145
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Locating Matches of Tree Patterns in Forests.

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Locating Matches of Tree Patterns in Forests. Universität Trier, Mathematik/Informatik, Forschungsbericht 98-08 ()
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ForkLight: A Control-Synchronous Parallel Programming Language.

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ForkLight: A Control-Synchronous Parallel Programming Language. Universität Trier, Mathematik/Informatik, Forschungsbericht 98-13 ()
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The Fork95 parallel programming language: Design, implementation, application.

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The Fork95 parallel programming language: Design, implementation, application. International Journal of Parallel Programming 25(1): 17-50 ()
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Language Support for Synchronous Parallel Critical Sections.

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Language Support for Synchronous Parallel Critical Sections. APDC : 92-99
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Constraints to Stop Higher-Order Deforestation.

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Constraints to Stop Higher-Order Deforestation. POPL : 400-413
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Disjuntive Completion Is Not "Optimal".

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Disjuntive Completion Is Not "Optimal". ILPS : 408
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Interprocedural Analysis Based on PDAs.

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Interprocedural Analysis Based on PDAs. Universität Trier, Mathematik/Informatik, Forschungsbericht 97-06 ()
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Propagating Differences: An Efficient New Fixpoint Algorithm for Distributive Constraint Systems.

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Propagating Differences: An Efficient New Fixpoint Algorithm for Distributive Constraint Systems. Universität Trier, Mathematik/Informatik, Forschungsbericht 97-13 ()
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Model-Checking for L2.

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Model-Checking for L2. Universität Trier, Mathematik/Informatik, Forschungsbericht 97-18 ()
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Fast and Simple Nested Fixpoints.

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Fast and Simple Nested Fixpoints. Inf. Process. Lett. 59(6): 303-308 ()
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Least and Greatest Solutions of Equations over N.

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Least and Greatest Solutions of Equations over N. Nord. J. Comput. 3(1): 41-62 ()
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Integer Constraints to Stop Deforestation.

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Integer Constraints to Stop Deforestation. ESOP : 326-340
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A Modal Mu-Calculus for Durational Transition Systems.

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A Modal Mu-Calculus for Durational Transition Systems. LICS : 128-137
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An Even Faster Solver for General Systems of Equations.

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An Even Faster Solver for General Systems of Equations. SAS : 189-204
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Fast and Simple Nested Fixpoints.

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Fast and Simple Nested Fixpoints. Universität Trier, Mathematik/Informatik, Forschungsbericht 96-05 ()
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An Even Faster Solver for General Systems of Equations.

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An Even Faster Solver for General Systems of Equations. Universität Trier, Mathematik/Informatik, Forschungsbericht 96-11 ()
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Integrating Synchronous and Asynchronous Paradigms: The Fork95 Parallel Programming Language.

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Integrating Synchronous and Asynchronous Paradigms: The Fork95 Parallel Programming Language. Universität Trier, Mathematik/Informatik, Forschungsbericht 95-05 ()
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A Modal µ-Calculus for Durational Transition Systems.

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A Modal µ-Calculus for Durational Transition Systems. Universität Trier, Mathematik/Informatik, Forschungsbericht 95-08 ()
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Language Support for Synchronous Parallel Critical Sections.

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Language Support for Synchronous Parallel Critical Sections. Universität Trier, Mathematik/Informatik, Forschungsbericht 95-23 ()
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Tree Automata for Code Selection.

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Tree Automata for Code Selection. Acta Inf. 31(8): 741-760 ()
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Haskell Overloading is DEXPTIME-Complete.

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Haskell Overloading is DEXPTIME-Complete. Inf. Process. Lett. 52(2): 57-60 ()
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Equivalence of Finite-Valued Tree Transducers Is Decidable.

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Equivalence of Finite-Valued Tree Transducers Is Decidable. Mathematical Systems Theory 27(4): 285-346 ()
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Finite Tree Automata with Cost Functions.

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Finite Tree Automata with Cost Functions. Theor. Comput. Sci. 126(1): 113-142 ()
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Least Solutions of Equations over N.

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Least Solutions of Equations over N. ICALP : 400-411
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When Is a Functional Tree Transduction Deterministic?

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When Is a Functional Tree Transduction Deterministic? TAPSOFT : 251-265
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FORK: A high-level language for PRAMs.

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FORK: A high-level language for PRAMs. Future Generation Comp. Syst. 8(4): 379-393 ()
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Single-Valuedness of Tree Transducers is Decidable in Polynomial Time.

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Single-Valuedness of Tree Transducers is Decidable in Polynomial Time. Theor. Comput. Sci. 106(1): 135-181 ()
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Finite Tree Automata with Cost Functions.

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Finite Tree Automata with Cost Functions. CAAP : 279-299
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Ambiguity and valuedness.

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Ambiguity and valuedness. Tree Automata and Languages : 355-380
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On finitely generated monoids of matrices with entries in N.

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On finitely generated monoids of matrices with entries in N. ITA 25: 19-38 ()
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On the Degree of Ambiguity of Finite Automata.

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On the Degree of Ambiguity of Finite Automata. Theor. Comput. Sci. 88(2): 325-349 ()
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Tree Automata for Code Selection.

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Tree Automata for Code Selection. Code Generation : 30-50
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FORK: A High-Level Language for PRAMs.

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FORK: A High-Level Language for PRAMs. PARLE (1) : 304-320
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Deciding Equivalence of Finite Tree Automata.

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Deciding Equivalence of Finite Tree Automata. SIAM J. Comput. 19(3): 424-437 ()
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Equivalence of Finite-Valued Bottom-up Finite State Tree Transducers Is Decidable.

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Equivalence of Finite-Valued Bottom-up Finite State Tree Transducers Is Decidable. CAAP : 269-284
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Characterizing Complexity Classes by Higher Type Primitive Recursive Definitions, Part II.

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Characterizing Complexity Classes by Higher Type Primitive Recursive Definitions, Part II. IMYCS : 148-158
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On the Finite Degree of Ambiguity of Finite Tree Automata.

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On the Finite Degree of Ambiguity of Finite Tree Automata. Acta Inf. 26(6): 527-542 ()
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On the Finite Degree of Ambiguity of Finite Tree Automata.

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On the Finite Degree of Ambiguity of Finite Tree Automata. FCT : 395-404
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Deciding Equivalence of Finite Tree Automata.

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Deciding Equivalence of Finite Tree Automata. STACS : 480-492
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Parameter-Reduction of Higher Level Grammars (Extended Abstract).

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Parameter-Reduction of Higher Level Grammars (Extended Abstract). CAAP : 52-71
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Parameter Reduction of Higher Level Grammars.

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Parameter Reduction of Higher Level Grammars. Theor. Comput. Sci. 55(1): 47-85 ()
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On the Degree of Ambiguity of Finite Automata.

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On the Degree of Ambiguity of Finite Automata. MFCS : 620-629
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A quadratic regularity test for non-deleting macro S grammars.

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A quadratic regularity test for non-deleting macro S grammars. FCT : 422-430
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