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Research Reports

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2012

• INFSYS RR-1843-12-01
  "Editing Graphs to Satisfy Degree Constraints: A Parameterized Approach"
  Luke Mathieson and Stefan Szeider
  January 2012
  
  

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2011

• INFSYS RR-1843-11-07
  "Worst-Case Optimal Reasoning with Forest Logic Programs"
  Cristina Feier
  December 2011
  
  
• INFSYS RR-1843-11-06
  "Proceedings of the 19th International Conference on Applications of Declarative Programming and Knowledge Management and the 25th Workshop on Logic Programming (September 28-30, 2011)"
  Johannes Oetsch, Jörg Pührer, and Hans Tompits
  September 2011
  
  
• INFSYS RR-1843-11-05
  "The Parameterized Complexity of k-Flip Local Search for SAT and MAX SAT"
  Stefan Szeider
  July 2011
  
  
• INFSYS RR-1843-11-04
  "A Probabilistic Approach to Problems Parameterized Above or Below Tight Bounds"
  Gregory Gutin, Eun Jung Kim, Stefan Szeider, Anders Yeo
  July 2011
  
  
• INFSYS RR-1843-11-03
  "Algorithms and Complexity Results for Persuasive Argumentation"
  Eun Jung Kim, Sebastian Ordyniak, Stefan Szeider
  July 2011
  
  
• INFSYS RR-1843-11-02
  "Parameterized Complexity Results for General Factors in Bipartite Graphs with an Application to Constraint Programming"
  Gregory Gutin, Eun Jung Kim, Arezou Soleimanfallah, Stefan Szeider, Anders Yeo
  July 2011
  
  
• INFSYS RR-1843-11-01
  "The Complexity of Conjunctive Query Abduction in DL-Lite"
  Diego Calvanese, Magdalena Ortiz, Mantas Simkus, Giorgio Stefanoni
  June 2011
  
  

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2010

• INFSYS RR-1843-10-03
  "Query Answering is undecidable in DLs with regular expressions, inverses, nominals, and counting"
  Magdalena Ortiz, Sebastian Rudolph, Mantas Simkus
  April 2010
  
  
• INFSYS RR-1843-10-01
  "Query Answering in the Description Logic S"
  Meghyn Bienvenu, Thomas Eiter, Carsten Lutz, Magdalena Ortiz, Mantas Simkus
  March 2010
  
  

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2009

• INFSYS RR-1843-09-05
  "On Equivalences in Answer-Set Programming by Countermodels in the Logic of Here-and-There"
  Michael Fink
  December 2009
  
  
• INFSYS RR-1843-09-04
  "Answering Regular Path Queries in Expressive Description Logics via Alternating Tree-Automata"
  Diego Calvanese, Thomas Eiter, and Magdalena Ortiz
  December 2009
  
  
• INFSYS RR-1843-09-03
  "Conjunctive Query Answering in the Description Logic SH using Knots"
  Thomas Eiter, Magdalena Ortiz, and Mantas Šimkus
  September 2009
  
  
• INFSYS RR-1843-09-02
  "Query answering in description logics with transitive roles"
  Thomas Eiter, Carsten Lutz, Magdalena Ortiz, and Mantas Šimkus
  April 2009
  
  
• INFSYS RR-1843-09-01
  "Well-Founded Semantics for Description Logic Programs in the Semantic Web"
  Thomas Eiter, Giovambattista Ianni, Thomas Lukasiewicz, and Roman Schindlauer
  March 2009
  
  

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2008

• INFSYS RR-1843-08-14
  "Hybrid Reasoning with Forest Logic Programs"
  Cristina Feier and Stijn Heymans
  December 2008
  
  
• INFSYS RR-1843-08-13
  "Updating Action Domain Descriptions"
  Thomas Eiter, Esra Erdem, Michael Fink, and Jan Senko
  November 2008
  
  
• INFSYS RR-1843-08-12
  "Embedding Non-Ground Logic Programs into Autoepistemic Logic for Knowledge Base Combination"
  Jos de Brujin, Thomas Eiter, Axel Polleres, Hans Tompits
  November 2008
  
  
• INFSYS RR-1843-08-11
  "From Web Search to Semantic Web Search"
  Bettina Fazzinga, Giorgio Gianforme, Georg Gottlob, and Thomas Lukasiewicz
  November 2008
  
  
• INFSYS RR-1843-08-10
  "A Sound and Complete Algorithm for Simple Conceptual Logic Programs"
  Cristina Feier and Stijn Heymans
  October 2008
  
  
• INFSYS RR-1843-08-09
  "Complexity of Conjunctive Query Answering in Description Logics with Transitive Roles. Preliminary report."
  Thomas Eiter, Carsten Lutz, Magdalena Ortiz and Mantas Šimkus
  September 2008
  
  
• INFSYS RR-1843-08-08
  "Combining Boolean Games with the Power of Ontologies for Automated Multi-Attribute Negotiation in the Semantic Web"
  Thomas Lukasiewicz and Azzurra Ragone
  August 2008
  
  
• INFSYS RR-1843-08-07
  "Adaptive Game-Theoretic Agent Programming in Golog"
  Alberto Finzi and Thomas Lukasiewicz
  August 2008
  
  
• INFSYS RR-1843-08-06
  "Efficiently querying RDF(S) ontologies with Answer Set Programming"
  Giovambattista Ianni, Alessandra Martello, Claudio Panetta, and Giorgio Terracina
  August 2008
  
  
• INFSYS RR-1843-08-05
  "Answering regular path queries in expressive description logics: An automata-theoretic approach"
  Diego Calvanese, Thomas Eiter, and Magdalena Ortiz
  June 2008
  
  
• INFSYS RR-1843-08-04
  "Team Programming in Golog under Partial Observability"
  Alessandro Farinelli, Alberto Finzi, and Thomas Lukasiewicz
  May 2008
  
  
• INFSYS RR-1843-08-03
  "A Solver for QBFs in Negation Normal Form"
  Uwe Egly, Martina Seidl, and Stefan Woltran
  March 2008
  
  
• INFSYS RR-1843-08-02
  "Exploiting Conjunctive Queries in Description Logic Programs"
  Thomas Eiter, Giovambattista Ianni, Thomas Krennwallner, and Roman Schindlauer
  March 2008
  
  
• INFSYS RR-1843-08-01
  "FDNC: Decidable Nonmonotonic Disjunctive Logic Programs with Function Symbols"
  Mantas Šimkus and Thomas Eiter
  January 2008
  
  

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2007

• INFSYS RR-1843-07-08
  "Semantic Forgetting in Answer Set Programming"
  Thomas Eiter and Kewen Wang
  November 2007
  
  
• INFSYS RR-1843-07-07
  "Data Complexity of Query Answering in Expressive Description Logics via Tableaux"
  Magdalena Ortiz, Diego Calvanese, and Thomas Eiter
  November 2007
  
  
• INFSYS RR-1843-07-06
  "Variable-Strength Conditional Preferences for Ranking Objects in Ontologies"
  Thomas Lukasiewicz and Jörg Schellhase
  April 2007
  
  
• INFSYS RR-1843-07-05
  "Tightly Integrated Probabilistic Description Logic Programs"
  Andrea Calì and Thomas Lukasiewicz
  March 2007
  
  
• INFSYS RR-1843-07-04
  "Combining Answer Set Programming with Description Logics for the Semantic Web"
  Thomas Eiter, Giovambattista Ianni, Thomas Lukasiewicz, Roman Schindlauer, and Hans Tompits
  March 2007
  
  
• INFSYS RR-1843-07-03
  "Tightly Integrated Fuzzy Description Logic Programs under the Answer Set Semantics for the Semantic Web"
  Thomas Lukasiewicz and Umberto Straccia
  February 2007
  
  
• INFSYS RR-1843-07-02
  "Uncertainty and Vagueness in Description Logic Programs for the Semantic Web"
  Thomas Lukasiewicz and Umberto Straccia
  February 2007
  
  
• INFSYS RR-1843-07-01
  "Repair Localization for Query Answering from Inconsistent Databases"
  Thomas Eiter, Michael Fink, Gianluigi Greco, and Domenico Lembo
  January 2007
  
  

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2006

• INFSYS RR-1843-06-08
  "A Novel Combination of Answer Set Programming with Description Logics for the Semantic Web"
  Thomas Lukasiewicz
  March 2010
  
  
• INFSYS RR-1843-06-07
  "An Overview of Uncertainty and Vagueness in Description Logics for the Semantic Web"
  Thomas Lukasiewicz and Umberto Straccia
  October 2006
  
  
• INFSYS RR-1843-06-06
  "Comparing Action Descriptions based on Semantic Preferences"
  Thomas Eiter, Esra Erdem, Michael Fink, and Jan Senko
  July 2006
  
  
• INFSYS RR-1843-06-05
  "Probabilistic Description Logics for the Semantic Web"
  Thomas Lukasiewicz
  March 2007
  
  
• INFSYS RR-1843-06-04
  "Probabilistic Description Logic Programs"
  Thomas Lukasiewicz
  June 2006
  
  
• INFSYS RR-1843-06-03
  "Data Complexity of Query Answering in Expressive Description Logics with Nominals"
  Magdalena Ortiz, Diego Calvanese, and Thomas Eiter
  March 2006
  
  
• INFSYS RR-1843-06-02
  "Proceedings of the 20th Workshop on Logic Programming (February 22-24, 2006)"
  Michael Fink, Hans Tompits, and Stefan Woltran
  February 2006
  
  
• INFSYS RR-1843-06-01
  "Computational Aspects of Monotone Dualization: A Brief Survey"
  Thomas Eiter, Kazuhisa Makino, and Georg Gottlob
  January 2006
  
  

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2005

• INFSYS RR-1843-05-11
  "Variable-Strength Conditional Preferences for Matchmaking in Description Logics"
  Thomas Lukasiewicz and Jörg Schellhase
  December 2005
  
  
• INFSYS RR-1843-05-10
  "Disjunctive Logic Programming with Types and Objects: The DLV+ System"
  Francesco Ricca and Nicola Leone
  October 2005
  
  
• INFSYS RR-1843-05-09
  "Solving Hard Problems for the Second Level of the Polynomial Hierarchy: Heuristics and Benchmarks"
  Wolfgang Faber, Nicola Leone, and Francesco Ricca
  October 2005
  
  
• INFSYS RR-1843-05-08
  "A Backjumping Technique for Disjunctive Logic Programming"
  Francesco Ricca, Wolfgang Faber, and Nicola Leone
  October 2005
  
  
• INFSYS RR-1843-05-07
  "Template Programs for Disjunctive Logic Programming: An Operational Semantics"
  Francesco Calimeri and Giovambattista Ianni
  October 2005
  
  
• INFSYS RR-1843-05-06
  "Reasoning Under Minimal Upper Bounds in Propositional Logic"
  Thomas Eiter and Georg Gottlob
  August 2005
  
  
• INFSYS RR-1843-05-05
  "Optimization Methods for Logic-Based Query Answering from Inconsistent Data Integration Systems"
  Thomas Eiter, Michael Fink, Gianluigi Greco, and Domenico Lembo
  July 2005
  
  
• INFSYS RR-1843-05-04
  "Game-Theoretic Reasoning about Actions in Nonmonotonic Causal Theories"
  Alberto Finzi and Thomas Lukasiewicz
  June 2005
  
  
• INFSYS RR-1843-05-03
  "Nonmonotonic Probabilistic Logics under Variable-Strength Inheritance with Overriding: Algorithms and Implementation in NMPROBLOG"
  Thomas Lukasiewicz
  June 2006
  
  
• INFSYS RR-1843-05-02
  "Game-Theoretic Golog under Partial Observability"
  Alberto Finzi and Thomas Lukasiewicz
  December 2006
  
  
• INFSYS RR-1843-05-01
  "Semantical Characterizations and Complexity of Equivalences in Answer Set Programming"
  Thomas Eiter, Michael Fink, and Stefan Woltran
  February 2005
  
  

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2004

• INFSYS RR-1843-04-05
  "Undoing the Effects of Action Sequences"
  Thomas Eiter, Esra Erdem, and Wolfgang Faber
  December 2004
  
  
• INFSYS RR-1843-04-04
  "Maintenance Goals of Agents in a Dynamic Environment: Formulation and Policy Construction"
  Chitta Baral, Thomas Eiter, Marcus Bjäreland and Mutsumi Nakamura
  October 2004
  
  
• INFSYS RR-1843-04-03
  "Diagnosing Plan Execution Discrepancies in a Logic-Based Action Framework"
  Thomas Eiter, Esra Erdem, and Wolfgang Faber
  August 2004
  
  
• INFSYS RR-1843-04-02
  "Game-Theoretic Agent Programming in Golog"
  Alberto Finzi and Thomas Lukasiewicz
  April 2007
  
  
• INFSYS RR-1843-04-01
  "Towards Automated Integration of Guess and Check Programs in Answer Set Programming: A Meta-Interpreter and Applications"
  Thomas Eiter and Axel Polleres
  January 2004
  
  

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2003

• INFSYS RR-1843-03-14
  "A Knowledge-Based Approach for Selecting Information Sources"
  Thomas Eiter, Michael Fink, and Hans Tompits
  December 2003
  
  
• INFSYS RR-1843-03-13
  "Combining Answer Set Programming with Description Logics for the Semantic Web"
  Thomas Eiter, Thomas Lukasiewicz, Roman Schindlauer, and Hans Tompits
  December 2003
  
  
• INFSYS RR-1843-03-12
  "On Eliminating Disjunctions in Stable Logic Programming"
  Thomas Eiter, Michael Fink, Hans Tompits, and Stefan Woltran
  November 2003
  
  
• INFSYS RR-1843-03-11
  "Complexity of Answer Set Checking and Bounded Predicate Arities for Non-ground Answer Set Programming"
  Thomas Eiter, Wolfgang Faber, Michael Fink, Gerald Pfeifer, and Stefan Woltran
  November 2003
  
  
• INFSYS RR-1843-03-10
  "Monitoring Agents using Declarative Planning"
  Jürgen Dix, Thomas Eiter, Michael Fink, Axel Polleres, and Yingqian Zhang
  November 2003
  
  
• INFSYS RR-1843-03-09
  "Generating all Abductive Explanations for Queries on Propositional Horn Theories"
  Thomas Eiter and Kazuhisa Makino
  June 2003
  
  
• INFSYS RR-1843-03-08
  "Uniform Equivalence of Logic Programs under the Stable Model Semantics"
  Michael Fink and Thomas Eiter
  May 2003
  
  
• INFSYS RR-1843-03-07
  "Aggregate Functions in Disjunctive Logic Programming: Semantics, Complexity, and Implementation in DLV"
  Tina Dell'Armi, Wolfgang Faber, Giuseppe Ielpa, Nicola Leone, and Gerald Pfeifer
  April 2003
  
  
• INFSYS RR-1843-03-06
  "Structure-Based Causes and Explanations in the Independent Choice Logic"
  Alberto Finzi and Thomas Lukasiewicz
  April 2003
  
  
• INFSYS RR-1843-03-05
  "Reasoning about Actions with Sensing under Qualitative and Probabilistic Uncertainty"
  Luca Iocchi, Thomas Lukasiewicz, Daniele Nardi, and Riccardo Rosati
  March 2006
  
  
• INFSYS RR-1843-03-04
  "On Deciding Subsumption Problems"
  Uwe Egly, Reinhard Pichler, Stefan Woltran
  April 2003
  
  
• INFSYS RR-1843-03-03
  "On Computing Solutions to Belief Change Scenarios"
  James P. Delgrande, Torsten Schaub, Hans Tompits, Stefan Woltran
  March 2003
  
  
• INFSYS RR-1843-03-02
  "Nonmonotonic Probabilistic Reasoning under Variable-Strength Inheritance with Overriding"
  Thomas Lukasiewicz
  January 2003
  
  
• INFSYS RR-1843-03-01
  "Probabilistic Reasoning about Actions in Nonmonotonic Causal Theories"
  Thomas Eiter and Thomas Lukasiewicz
  March 2003
  
  

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2002

• INFSYS RR-1843-02-15
  "Polynomial Translations of Nested Logic Programs into Disjunctive Logic Programs"
  David Pearce, Vladimir Sarsakov, Torsten Schaub, Hans Tompits, Stefan Woltran
  November 2002
  
  
• INFSYS RR-1843-02-14
  "The DLV System for Knowledge Representation and Reasoning"
  Nicola Leone, Gerald Pfeifer, Wolfgang Faber, Thomas Eiter, Georg Gottlob, Christoph Koch, Cristinel Mateis, Simona Perri, Francesco Scarcello
  October 2002
  
  
• INFSYS RR-1843-02-13
  "Answer Set Planning under Action Costs"
  Thomas Eiter, Wolfgang Faber, Nicola Leone, Gerald Pfeifer, Axel Polleres
  October 2002
  
  
• INFSYS RR-1843-02-12
  "Combining Probabilistic Logic Programming with the Power of Maximum Entropy"
  Gabriele Kern-Isberner and Thomas Lukasiewicz
  October 2002
  
  
• INFSYS RR-1843-02-11
  "Reasoning about Evolving Nonmonotonic Knowledge Bases"
  Thomas Eiter, Michael Fink, Giuliana Sabbatini, and Hans Tompits
  September 2002
  
  
• INFSYS RR-1843-02-10
  "Complexity of Nested Circumscription and Nested Abnormality Theories"
  Marco Cadoli, Thomas Eiter, and Georg Gottlob
  July 2002
  
  
• INFSYS RR-1843-02-08
  "Temporal Probabilistic Object Bases"
  Veronica Biazzo, Rosalba Giugno, Thomas Lukasiewicz, and V.S. Subrahmanian
  June 2002
  
  
• INFSYS RR-1843-02-07
  "Declarative Update Policies for Nonmonotonic Knowledge Bases"
  Thomas Eiter, Michael Fink, Giuliana Sabbatini, and Hans Tompits
  May 2002
  
  
• INFSYS RR-1843-02-06
  "P-SHOQ(D): A Probabilistic Extension of SHOQ(D) for Probabilistic Ontologies in the Semantic Web"
  Rosalba Giugno and Thomas Lukasiewicz
  April 2002
  
  
• INFSYS RR-1843-02-05
  "New Results on Monotone Dualization and Generating Hypergraph Transversals"
  Thomas Eiter, Georg Gottlob, and Kazuhisa Makino
  April 2002
  
  
• INFSYS RR-1843-02-04
  "On Computing all Abductive Explanations"
  Thomas Eiter and Kazuhisa Makino
  April 2002
  
  
• INFSYS RR-1843-02-03
  "Causes and Explanations in the Structural-Model Approach: Tractable Cases"
  Thomas Eiter and Thomas Lukasiewicz
  March 2002
  
  
• INFSYS RR-1843-02-02
  "Weak Nonmonotonic Probabilistic Logics"
  Thomas Lukasiewicz
  March 2002; September 2004
  
  
• INFSYS RR-1843-02-01
  "Computing Preferred Answer Sets by Meta-Interpretation in Answer Set Programming"
  Thomas Eiter, Wolfgang Faber, Nicola Leone, Gerald Pfeifer
  January 2002
  
  

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2001

• INFSYS RR-1843-01-12
  "A Logic Programming Approach to Knowledge-State Planning, II: The DLV^K System"
  Thomas Eiter, Wolfgang Faber, Nicola Leone, Gerald Pfeifer, Axel Polleres
  December 2001
  
  
• INFSYS RR-1843-01-11
  "A Logic Programming Approach to Knowledge-State Planning: Semantics and Complexity"
  Thomas Eiter, Wolfgang Faber, Nicola Leone, Gerald Pfeifer, Axel Polleres
  December 2001
  
  
• INFSYS RR-1843-01-10
  "Abduction with Penalization in Logic Programming"
  Giovambattista Ianni, Nicola Leone, Simona Perri, Francesco Scarcello
  October 2001
  
  
• INFSYS RR-1843-01-09
  "Intelligent Anticipated Exploration of Web Sites"
  Giovambattista Ianni
  October 2001
  
  
• INFSYS RR-1843-01-08
  "Complexity Results for Explanations in the Structural-Model Approach"
  Thomas Eiter and Thomas Lukasiewicz
  November 2001; July 2002
  
  
• INFSYS RR-1843-01-07
  "Pruning Operators for Disjunctive Logic Programming Systems"
  Francesco Calimeri, Wolfgang Faber, Nicola Leone, and Gerald Pfeifer
  May 2001; revised October 2005
  
  
• INFSYS RR-1843-01-06
  "Fixpoint Characterizations for Many-Valued Disjunctive Logic Programs with Probabilistic Semantics"
  Thomas Lukasiewicz
  June 2001
  
  
• INFSYS RR-1843-01-05
  "Probabilistic Logic Programming under Inheritance with Overriding"
  Thomas Lukasiewicz
  May 2001
  
  
• INFSYS RR-1843-01-04
  "Probabilistic Logic under Coherence: Complexity and Algorithms"
  Veronica Biazzo, Angelo Gilio, Thomas Lukasiewicz, and Giuseppe Sanfilippo
  April 2001; October 2002
  
  
• INFSYS RR-1843-01-03
  "Probabilistic Logic under Coherence, Model-Theoretic Probabilistic Logic, and Default Reasoning in System P"
  Veronica Biazzo, Angelo Gilio, Thomas Lukasiewicz, and Giuseppe Sanfilippo
  April 2001; May 2002
  
  
• INFSYS RR-1843-01-02
  "Comparing Environments for Developing Software Agents"
  Thomas Eiter and Viviana Mascardi
  March 2001
  
  
• INFSYS RR-1843-01-01
  "Complexity Results for Structure-Based Causality"
  Thomas Eiter and Thomas Lukasiewicz
  January 2001; November 2001
  
  

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2000

• INFSYS RR-1843-00-08
  "On Updates of Logic Programs: Semantics and Properties"
  Thomas Eiter, Michael Fink, Giuliana Sabbatini, and Hans Tompits
  December 2000
  
  
• INFSYS RR-1843-00-07
  "Error-Tolerant Agents"
  Thomas Eiter, Viviana Mascardi, and V.S. Subrahmanian
  October 2000
  
  
• INFSYS RR-1843-00-06
  "Default Reasoning from Conditional Knowledge Bases: Complexity and Tractable Cases"
  Thomas Eiter and Thomas Lukasiewicz
  September 2000
  
  
• INFSYS RR-1843-00-05
  "Using Methods of Declarative Logic Programming for Intelligent Information Agents"
  Thomas Eiter, Michael Fink, Giuliana Sabbatini, and Hans Tompits
  October 2000
  
  
• INFSYS RR-1843-00-04
  "A Data Model and Algebra for Probabilistic Complex Values"
  Thomas Eiter, Thomas Lukasiewicz, and Michael Walter
  August 2000
  
  
• INFSYS RR-1843-00-03
  "Credal Networks under Maximum Entropy"
  Thomas Lukasiewicz
  May 2000
  
  
• INFSYS RR-1843-00-02
  "Probabilistic Default Reasoning with Strict and Defeasible Conditional Constraints"
  Thomas Lukasiewicz
  February 2000
  
  
• INFSYS RR-1843-00-01
  "Probabilistic Logic Programming with Conditional Constraints"
  Thomas Lukasiewicz
  May 2000
  
  

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1999

• INFSYS RR-1843-99-11
  "Probabilistic Object Bases"
  Thomas Eiter, James J. Lu, Thomas Lukasiewicz, and V.S. Subrahmanian
  November 1999
  
  
• INFSYS RR-1843-99-10
  "Complexity Results for Default Reasoning from Conditional Knowledge Bases, Preliminary Report"
  Thomas Eiter and Thomas Lukasiewicz
  November 1999
  
  
• INFSYS RR-1843-99-09
  "Many-Valued Disjunctive Logic Programs with Probabilistic Semantics"
  Thomas Lukasiewicz
  August 1999
  
  
• INFSYS RR-1843-99-08
  "Proceedings of the Workshop on Complexity-theoretic and Recursion-theoretic Methods in Databases, Artificial Intelligence and Finite Model Theory, July 6, Trento, Italy, 1999"
  Thomas Eiter, Georg Gottlob, Viktor Marek, and Jeffrey Remmel
  July 1999
  
  
• INFSYS RR-1843-99-07
  "Heterogeneous Active Agents, III: Polynomially Implementable Agents"
  Thomas Eiter, V.S. Subrahmanian, and T.J. Rogers
  May 1999
  
  
• INFSYS RR-1843-99-06
  "Preferred Answer Sets for Extended Logic Programs"
  Gerd Brewka and Thomas Eiter
  March 1999
  
  
• INFSYS RR-1843-99-05
  "Complexity and Expressive Power of Logic Programming"
  Evgeny Dantsin, Thomas Eiter, Georg Gottlob, and Andrei Voronkov
  February 1999
  
  
• INFSYS RR-1843-99-03
  "Enhancing Disjunctive Datalog by Constraints"
  Francesco Buccafurri, Nicola Leone, and Pasquale Rullo
  February 1999
  
  
• INFSYS RR-1843-99-02
  "Disjunctions of Horn Theories and their Cores"
  Thomas Eiter, Toshihide Ibaraki, and Kazuhisa Makino
  January 1999
  
  
• INFSYS RR-1843-99-01
  "On ACTL Formulas Having Deterministic Counterexamples"
  Francesco Buccafurri, Thomas Eiter, Georg Gottlob, and Nicola Leone
  January 1999
  
  

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1998

• INFSYS RR-1843-98-03
  "Heterogeneous Active Agents, II: Algorithms and Complexity"
  Thomas Eiter and V.S. Subrahmanian
  December 1998
  
  
• INFSYS RR-1843-98-02
  "Heterogeneous Active Agents, I: Semantics"
  Thomas Eiter, V.S. Subrahmanian, and Georg Pick
  December 1998
  
  
• INFSYS RR-1843-98-01
  "Proceedings of the 13th Workshop on Logic Programming (October 6-8, 1998)"
  Uwe Egly and Hans Tompits
  October 1998
  
  

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