Skip to content

James Worrell

Publication record assembled from the DBLP archive of ranked conferences.

Papers indexed

127

Venues

19

Active years

1998–2026

Best venue rank

A*

Where they publish

Papers

127 indexed papers, newest first.

YearVenueTitleAuthors
2026LICSDifferential Tree Automata.Rida Ait El Manssour, Vincent Cheval, Mahsa Shirmohammadi, James Worrell
2026SODAOn the Complexity of the Skolem Problem at Low Orders.Piotr Bacik, Jol Ouaknine, James Worrell
2026SODAAlgebraic Closure of Matrix Sets Recognized by 1-VASS.Rida Ait El Manssour, Mahsa Naraghi, Mahsa Shirmohammadi, James Worrell
2026STACSOn the p-adic Skolem Problem.Piotr Bacik, Jol Ouaknine, David Purser, James Worrell
2025CONCURExplainability is a Game for Probabilistic Bisimilarity Distances.Emily Vlasman, Anto Nanah Ji, James Worrell, Franck van Breugel
2025CSLReachability for Multi-Priced Timed Automata with Positive and Negative Rates.Andrew Scoones, Mahsa Shirmohammadi, James Worrell
2025LICSMultiple Reachability in Linear Dynamical Systems.Toghrul Karimov, Edon Kelmendi, Jol Ouaknine, James Worrell
2025MFCSOn Large Zeros of Linear Recurrence Sequences.Florian Luca, Jol Ouaknine, James Worrell
2025SODAOn the Decidability of Presburger Arithmetic Expanded with Powers.Toghrul Karimov, Florian Luca, Joris Nieuwveld, Jol Ouaknine, James Worrell
2024CASCOn Rational Recursion for Holonomic Sequences.Bertrand Teguia Tabuguia, James Worrell
2024ICALPThe 2-Dimensional Constraint Loop Problem Is Decidable.Quentin Guilmant, Engel Lefaucheux, Jol Ouaknine, James Worrell
2024ICALPOn Transcendence of Numbers Related to Sturmian and Arnoux-Rauzy Words.Pavol Kebis, Florian Luca, Jol Ouaknine, Andrew Scoones, James Worrell
2024LICSOn the Decidability of Monadic Second-Order Logic with Arithmetic Predicates.Valrie Berth, Toghrul Karimov, Joris Nieuwveld, Jol Ouaknine, Mihir Vahanwala, James Worrell
2024STACSNonnegativity Problems for Matrix Semigroups.Julian D'Costa, Jol Ouaknine, James Worrell
2023ICALPThe Skolem Landscape (Invited Talk).James Worrell
2023ICALPPositivity Problems for Reversible Linear Recurrence Sequences.George Kenison, Joris Nieuwveld, Jol Ouaknine, James Worrell
2023ISSACThe Membership Problem for Hypergeometric Sequences with Quadratic Parameters.George Kenison, Klara Nosan, Mahsa Shirmohammadi, James Worrell
2023LICSMultiplicity Problems on Algebraic Series and Context-Free Grammars.Nikhil Balaji, Lorenzo Clemente, Klara Nosan, Mahsa Shirmohammadi, James Worrell
2023LICSThe Power of Positivity.Toghrul Karimov, Edon Kelmendi, Joris Nieuwveld, Jol Ouaknine, James Worrell
2022CONCURParameter Synthesis for Parametric Probabilistic Dynamical Systems and Prefix-Independent Specifications.Christel Baier, Florian Funke, Simon Jantsch, Toghrul Karimov, Engel Lefaucheux, Jol Ouaknine, David Purser, Markus A. Whiteland, James Worrell
2022IJCAISample Complexity Bounds for Robustly Learning Decision Lists against Evasion Attacks.Pascale Gourdeau, Varun Kanade, Marta Kwiatkowska, James Worrell
2022ISSACThe Membership Problem for Hypergeometric Sequences with Rational Parameters.Klara Nosan, Amaury Pouly, Mahsa Shirmohammadi, James Worrell
2022ISSACOn the Computation of the Zariski Closure of Finitely Generated Groups of Matrices.Klara Nosan, Amaury Pouly, Sylvain Schmitz, Mahsa Shirmohammadi, James Worrell
2022LICSIdentity Testing for Radical Expressions.Nikhil Balaji, Klara Nosan, Mahsa Shirmohammadi, James Worrell
2022LICSOn the Skolem Problem and the Skolem Conjecture.Richard Lipton, Florian Luca, Joris Nieuwveld, Jol Ouaknine, David Purser, James Worrell
2022MFCSSkolem Meets Schanuel.Yuri Bilu, Florian Luca, Joris Nieuwveld, Jol Ouaknine, David Purser, James Worrell
2022MFCSThe Pseudo-Reachability Problem for Diagonalisable Linear Dynamical Systems.Julian D'Costa, Toghrul Karimov, Rupak Majumdar, Jol Ouaknine, Mahmoud Salamati, James Worrell
2022MFCSBounding the Escape Time of a Linear Dynamical System over a Compact Semialgebraic Set.Julian D'Costa, Engel Lefaucheux, Eike Neumann, Jol Ouaknine, James Worrell
2022MFCSA Universal Skolem Set of Positive Lower Density.Florian Luca, Jol Ouaknine, James Worrell
2021CAVPorous Invariants.Engel Lefaucheux, Jol Ouaknine, David Purser, James Worrell
2021CONCURThe Orbit Problem for Parametric Linear Dynamical Systems.Christel Baier, Florian Funke, Simon Jantsch, Toghrul Karimov, Engel Lefaucheux, Florian Luca, Jol Ouaknine, David Purser, Markus A. Whiteland, James Worrell
2021ICALPDecision Problems for Second-Order Holonomic Recurrences.Eike Neumann, Jol Ouaknine, James Worrell
2021ISSACCyclotomic Identity Testing and Applications.Nikhil Balaji, Sylvain Perifel, Mahsa Shirmohammadi, James Worrell
2021LICSUniversal Skolem Sets.Florian Luca, Jol Ouaknine, James Worrell
2021MFCSThe Pseudo-Skolem Problem is Decidable.Julian D'Costa, Toghrul Karimov, Rupak Majumdar, Jol Ouaknine, Mahmoud Salamati, Sadegh Soudjani, James Worrell
2021MFCSOn the Complexity of the Escape Problem for Linear Dynamical Systems over Compact Semialgebraic Sets.Julian D'Costa, Engel Lefaucheux, Eike Neumann, Jol Ouaknine, James Worrell
2021MFCSOn Positivity and Minimality for Second-Order Holonomic Sequences.George Kenison, Oleksiy Klurman, Engel Lefaucheux, Florian Luca, Pieter Moree, Jol Ouaknine, Markus A. Whiteland, James Worrell
2020CONCURCoverability in 1-VASS with Disequality Tests.Shaull Almagor, Nathann Cohen, Guillermo A. Prez, Mahsa Shirmohammadi, James Worrell
2020CONCURAlgebraic Invariants for Linear Hybrid Automata.Rupak Majumdar, Jol Ouaknine, Amaury Pouly, James Worrell
2020CONCUROn Ranking Function Synthesis and Termination for Polynomial Programs.Eike Neumann, Jol Ouaknine, James Worrell
2020ICALPInvariants for Continuous Linear Dynamical Systems.Shaull Almagor, Edon Kelmendi, Jol Ouaknine, James Worrell
2020ISSACOn the skolem problem and prime powers.George Kenison, Richard Lipton, Jol Ouaknine, James Worrell
2020MFCSOn LTL Model Checking for Low-Dimensional Discrete Linear Dynamical Systems.Toghrul Karimov, Jol Ouaknine, James Worrell
2020STACSHow Fast Can You Escape a Compact Polytope?Julian D'Costa, Engel Lefaucheux, Jol Ouaknine, James Worrell
2019ICALPOn Reachability Problems for Low-Dimensional Matrix Semigroups.Thomas Colcombet, Jol Ouaknine, Pavel Semukhin, James Worrell
2019ICALPTermination of Linear Loops over the Integers.Mehran Hosseini, Jol Ouaknine, James Worrell
2019LICSOn the Existential Theories of Bchi Arithmetic and Linear p-adic Fields.Florent Gupin, Christoph Haase, James Worrell
2019STACSThe Semialgebraic Orbit Problem.Shaull Almagor, Jol Ouaknine, James Worrell
2019SASOn the Monniaux Problem in Abstract Interpretation.Nathanal Fijalkow, Engel Lefaucheux, Pierre Ohlmann, Jol Ouaknine, Amaury Pouly, James Worrell
2018CONCUREffective Divergence Analysis for Linear Recurrence Sequences.Shaull Almagor, Brynmor Chapman, Mehran Hosseini, Jol Ouaknine, James Worrell
2018ICALPO-Minimal Invariants for Linear Loops.Shaull Almagor, Dmitry Chistikov, Jol Ouaknine, James Worrell
2018ICALPWhen is Containment Decidable for Probabilistic Automata?.Laure Daviaud, Marcin Jurdzinski, Ranko Lazic, Filip Mazowiecki, Guillermo A. Prez, James Worrell
2018ICALPCosts and Rewards in Priced Timed Automata.Martin Frnzle, Mahsa Shirmohammadi, Mani Swaminathan, James Worrell
2018LICSPolynomial Invariants for Affine Programs.Ehud Hrushovski, Jol Ouaknine, Amaury Pouly, James Worrell
2017CONCURProbabilistic Automata of Bounded Ambiguity.Nathanal Fijalkow, Cristian Riveros, James Worrell
2017ICALPThe Polytope-Collision Problem.Shaull Almagor, Jol Ouaknine, James Worrell
2017ISSACThe Zero Problem for Exponential Polynomials.James Worrell
2017LICSPolynomial automata: Zeroness and applications.Michael Benedikt, Timothy Duff, Aditya Sharad, James Worrell
2017LICSRevisiting reachability in timed automata.Karin Quaas, Mahsa Shirmohammadi, James Worrell
2017SODAOn Rationality of Nonnegative Matrix Factorization.Dmitry Chistikov, Stefan Kiefer, Ines Marusic, Mahsa Shirmohammadi, James Worrell
2017STACSSemialgebraic Invariant Synthesis for the Kannan-Lipton Orbit Problem.Nathanal Fijalkow, Pierre Ohlmann, Jol Ouaknine, Amaury Pouly, James Worrell
2016CAVMarkov Chains and Unambiguous Bchi Automata.Christel Baier, Stefan Kiefer, Joachim Klein, Sascha Klppelholz, David Mller, James Worrell
2016CONCURModel Checking Flat Freeze LTL on One-Counter Automata.Antonia Lechner, Richard Mayr, Jol Ouaknine, Amaury Pouly, James Worrell
2016ICALPProving the Herman-Protocol Conjecture.Maria Bruna, Radu Grigore, Stefan Kiefer, Jol Ouaknine, James Worrell
2016ICALPOn Restricted Nonnegative Matrix Factorization.Dmitry Chistikov, Stefan Kiefer, Ines Marusic, Mahsa Shirmohammadi, James Worrell
2016ICALPOn the Skolem Problem for Continuous Linear Dynamical Systems.Ventsislav Chonev, Jol Ouaknine, James Worrell
2016LICSOn Recurrent Reachability for Continuous Linear Dynamical Systems.Ventsislav Chonev, Jol Ouaknine, James Worrell
2016LICSSolvability of Matrix-Exponential Equations.Jol Ouaknine, Amaury Pouly, Joo Sousa Pinto, James Worrell
2015CONCURReachability Problems for Continuous Linear Dynamical Systems (Invited Paper).James Worrell
2015FOSSACSThree Variables Suffice for Real-Time Logic.Timos Antonopoulos, Paul Hunter, Shahab Raza, James Worrell
2015FOSSACSMinimisation of Multiplicity Tree Automata.Stefan Kiefer, Ines Marusic, James Worrell
2015LICSOn the Complexity of Linear Arithmetic with Divisibility.Antonia Lechner, Jol Ouaknine, James Worrell
2015SODAThe Polyhedron-Hitting Problem.Ventsislav Chonev, Jol Ouaknine, James Worrell
2015SODAOn Termination of Integer Linear Loops.Jol Ouaknine, Joo Sousa Pinto, James Worrell
2015STACSOn Matrix Powering in Low Dimensions.Esther Galby, Jol Ouaknine, James Worrell
2014ICALPOn the Positivity Problem for Simple Linear Recurrence Sequences, .Jol Ouaknine, James Worrell
2014ICALPUltimate Positivity is Decidable for Simple Linear Recurrence Sequences.Jol Ouaknine, James Worrell
2014MFCSComplexity of Equivalence and Learning for Multiplicity Tree Automata.Ines Marusic, James Worrell
2014SODAPositivity Problems for Low-Order Linear Recurrence Sequences.Jol Ouaknine, James Worrell
2014RVOnline Monitoring of Metric Temporal Logic.Hsi-Ming Ho, Jol Ouaknine, James Worrell
2013ATVATime-Bounded Reachability for Monotonic Hybrid Automata: Complexity and Fixed Points.Thomas Brihaye, Laurent Doyen, Gilles Geeraerts, Jol Ouaknine, Jean-Franois Raskin, James Worrell
2013ICALPComplexity of Two-Variable Logic on Finite Trees.Saguy Benaim, Michael Benedikt, Witold Charatonik, Emanuel Kieronski, Rastislav Lenhardt, Filip Mazowiecki, James Worrell
2013ICALPRevisiting the Equivalence Problem for Finite Multitape Automata.James Worrell
2013LICSExpressive Completeness for Metric Temporal Logic.Paul Hunter, Jol Ouaknine, James Worrell
2013MFCSZeno, Hercules and the Hydra: Downward Rational Termination Is Ackermannian.Ranko Lazic, Jol Ouaknine, James Worrell
2013STOCThe orbit problem in higher dimensions.Ventsislav Chonev, Jol Ouaknine, James Worrell
2013TACASLTL Model Checking of Interval Markov Chains.Michael Benedikt, Rastislav Lenhardt, James Worrell
2012CAVRecent Developments in FDR.Philip J. Armstrong, Michael Goldsmith, Gavin Lowe, Jol Ouaknine, Hristina Palikareva, A. W. Roscoe, James Worrell
2012CAVAPEX: An Analyzer for Open Probabilistic Programs.Stefan Kiefer, Andrzej S. Murawski, Jol Ouaknine, Bjrn Wachter, James Worrell
2012FOSSACSOn the Complexity of Computing Probabilistic Bisimilarity.Di Chen, Franck van Breugel, James Worrell
2012FOSSACSBranching-Time Model Checking of Parametric One-Counter Automata.Stefan Gller, Christoph Haase, Jol Ouaknine, James Worrell
2012FOSSACSOn the Complexity of the Equivalence Problem for Probabilistic Automata.Stefan Kiefer, Andrzej S. Murawski, Jol Ouaknine, Bjrn Wachter, James Worrell
2012LICSOn the Magnitude of Completeness Thresholds in Bounded Model Checking.Daniel Bundala, Jol Ouaknine, James Worrell
2011CAVLanguage Equivalence for Probabilistic Automata.Stefan Kiefer, Andrzej S. Murawski, Jol Ouaknine, Bjrn Wachter, James Worrell
2011CAVLinear Completeness Thresholds for Bounded Model Checking.Daniel Kroening, Jol Ouaknine, Ofer Strichman, Thomas Wahl, James Worrell
2011CONCURTwo Variable vs. Linear Temporal Logic in Model Checking and Games.Michael Benedikt, Rastislav Lenhardt, James Worrell
2011CONCURTractable Reasoning in a Fragment of Separation Logic.Byron Cook, Christoph Haase, Jol Ouaknine, Matthew J. Parkinson, James Worrell
2011CONCURStatic Livelock Analysis in CSP.Jol Ouaknine, Hristina Palikareva, A. W. Roscoe, James Worrell
2011CSLThe Church Synthesis Problem with Metric.Mark Jenkins, Jol Ouaknine, Alexander Rabinovich, James Worrell
2011ICALPOn Reachability for Hybrid Automata over Bounded Time.Thomas Brihaye, Laurent Doyen, Gilles Geeraerts, Jol Ouaknine, Jean-Franois Raskin, James Worrell
2011ICALPOn Stabilization in Herman's Algorithm.Stefan Kiefer, Andrzej S. Murawski, Jol Ouaknine, James Worrell, Lijun Zhang
2010ICALPModel Checking Succinct and Parametric One-Counter Automata.Stefan Gller, Christoph Haase, Jol Ouaknine, James Worrell
2010ICALPTowards a Theory of Time-Bounded Verification.Jol Ouaknine, James Worrell
2010LICSAlternating Timed Automata over Bounded Time.Mark Jenkins, Jol Ouaknine, Alexander Rabinovich, James Worrell
2009CONCURReachability in Succinct and Parametric One-Counter Automata.Christoph Haase, Stephan Kreutzer, Jol Ouaknine, James Worrell
2009CONCURTime-Bounded Verification.Jol Ouaknine, Alexander Rabinovich, James Worrell
2008ICALPOn Expressiveness and Complexity in Real-Time Model Checking.Patricia Bouyer, Nicolas Markey, Jol Ouaknine, James Worrell
2008STACSOn Termination for Faulty Channel Machines.Patricia Bouyer, Nicolas Markey, Jol Ouaknine, Philippe Schnoebelen, James Worrell
2008TACASOn Automated Verification of Probabilistic Programs.Axel Legay, Andrzej S. Murawski, Jol Ouaknine, James Worrell
2008TIMEReal-Time Model Checking: Algorithms and Complexity.James Worrell
2007FOSSACSApproximating a Behavioural Pseudometric Without Discount for Probabilistic Systems.Franck van Breugel, Babita Sharma, James Worrell
2007ICISEnhancing ERP/Business Fit in the Post-Implementation Phase: A Knowledge-Based Perspective.James Worrell
2007LICSThe Cost of Punctuality.Patricia Bouyer, Nicolas Markey, Jol Ouaknine, James Worrell
2006FOSSACSOn Metric Temporal Logic and Faulty Turing Machines.Jol Ouaknine, James Worrell
2006TACASSafety Metric Temporal Logic Is Fully Decidable.Jol Ouaknine, James Worrell
2005ICALPDecidability and Complexity Results for Timed Automata via Channel Machines.Parosh Aziz Abdulla, Johann Deneux, Jol Ouaknine, James Worrell
2005ICALPAn Accessible Approach to Behavioural Pseudometrics.Franck van Breugel, Claudio Hermida, Michael Makkai, James Worrell
2005LICSOn the Decidability of Metric Temporal Logic.Jol Ouaknine, James Worrell
2004FOSSACSDuality for Labelled Markov Processes.Michael W. Mislove, Jol Ouaknine, Dusko Pavlovic, James Worrell
2004LICSOn the Language Inclusion Problem for Timed Automata: Closing a Decidability Gap.Jol Ouaknine, James Worrell
2003FOSSACSAn Intrinsic Characterization of Approximate Probabilistic Bisimilarity.Franck van Breugel, Michael W. Mislove, Jol Ouaknine, James Worrell
2003LICSRevisiting Digitization, Robustness, and Decidability for Timed Automata.Jol Ouaknine, James Worrell
2002ICALPTesting Labelled Markov Processes.Franck van Breugel, Steven Shalit, James Worrell
2002ICALPMeasuring the Probabilistic Powerdomain.Keye Martin, Michael W. Mislove, James Worrell
2001CONCURAn Algorithm for Quantitative Verification of Probabilistic Transition Systems.Franck van Breugel, James Worrell
2001ICALPTowards Quantitative Verification of Probabilistic Transition Systems.Franck van Breugel, James Worrell
1998LICSAn Axiomatics for Categories of Transition Systems as Coalgebras.Peter T. Johnstone, John Power, Toru Tsujishita, Hiroshi Watanabe, James Worrell