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6th KR 1998: Trento, Italy
- Anthony G. Cohn, Lenhart K. Schubert, Stuart C. Shapiro:

Proceedings of the Sixth International Conference on Principles of Knowledge Representation and Reasoning (KR'98), Trento, Italy, June 2-5, 1998. Morgan Kaufmann 1998
Building, Merging, Revising Theories
- Diego Calvanese, Giuseppe De Giacomo, Maurizio Lenzerini, Daniele Nardi, Riccardo Rosati:

Description Logic Framework for Information Integration. KR 1998: 2-13 - Hector J. Levesque:

A Completeness Result for Reasoning with Incomplete First-Order Knowledge Bases. KR 1998: 14-23 - Mary-Anne Williams, Grigoris Antoniou:

A Strategy for Revising Default Theory Extensions. KR 1998: 24-35
Reasoning About Actions I
- Lars Karlsson:

Anything Can Happen: On Narratives and Hypothetical Reasoning. KR 1998: 36-47 - John McCarthy, Tom Costello:

Combining Narratives. KR 1998: 48-59 - Michael Thielscher:

How (Not) To Minimize Events. KR 1998: 60-73
Logic Programming based Representations
- Stefan Brass, Jürgen Dix, Ilkka Niemelä, Teodor C. Przymusinski:

A Comparison of the Static and the Disjunctive Well-Founded Semantics and its Implementation. KR 1998: 74-85 - Gerhard Brewka, Thomas Eiter:

Preferred Answer Sets for Extended Logic Programs. KR 1998: 86-97 - José Júlio Alferes, João Alexandre Leite, Luís Moniz Pereira, Halina Przymusinska, Teodor C. Przymusinski:

Dynamic Logic Programming. KR 1998: 98-111
Qualitative Spatio/Temporal Reasoning
- Volker Haarslev, Carsten Lutz, Ralf Möller:

Foundations of Spatioterminological Reasoning with Description Logics. KR 1998: 112-123 - Philippe Balbiani, Jean-François Condotta, Luis Fariñas del Cerro:

A Model for Reasoning about Bidemsional Temporal Relations. KR 1998: 124-130 - Philippe Muller:

A Qualitative Theory of Motion Based on Spatio-Temporal Primitives. KR 1998: 131-143
Diagnosis
- Paolo Liberatore:

On the Compilability of Diagnosis, Planning, Reasoning about Actions, Belief Revision, etc. KR 1998: 144-155 - Adnan Darwiche:

Compiling Devices: A Structure-Based Approach. KR 1998: 156-155 - Sheila A. McIlraith:

Explanatory Diagnosis: Conjecturing Actions to Explain Observations. KR 1998: 167-179
Non Monotonic Reasoning
- Peter A. Flach:

Comparing Consequence Relations. KR 1998: 180-189 - Emil Weydert:

SYSTEM JZ - How to Build a Canonical Ranking Model of a Default Knowledge Base. KR 1998: 190-201 - Eyal Amir:

Pointwise Circumscription Revisited. KR 1998: 202-211
Planning
- Norman McCain, Hudson Turner:

Satisfiability planning with Causal Theories. KR 1998: 212-223 - Fangzhen Lin:

On Measuring Plan Quality (A Preliminary Report). KR 1998: 224-233
Representing Granularity and Vagueness
- Brandon Bennett:

Modal Semantics for Knowledge Bases Dealing with Vague Concepts. KR 1998: 234-244 - Inderjeet Mani:

A Theory of Granularity and its Application to Problems of Polysemy and Underspecification of Meaning. KR 1998: 245-257
Belief Revision and Contextual Reasoning
- Patrick Doherty, Witold Lukaszewicz, Ewa Madalinska-Bugaj:

The PMA and Relativizing Minimal Change for Action Update. KR 1998: 258-269 - Tom Costello, Anna Patterson:

Quantifiers and Operations on Modalities and Contexts. KR 1998: 270-281 - Fausto Giunchiglia, Chiara Ghidini:

Local Models Semantics, or Contextual Reasoning = Locality + Compatibility. KR 1998: 282-291
Reasoning about Actions
- Javier Pinto:

Concurrent Actions and Interacting Effects. KR 1998: 292-303 - Erik Sandewall:

Logic Based Modelling of Goal-Directed Behavior. KR 1998: 304-315 - Gerhard Lakemeyer, Hector J. Levesque:

AOL: A logic of Acting, Sensing, Knowing, and Only Knowing. KR 1998: 316-329
Formal Results in Spatial Reasoning
- Jochen Renz:

A Canonical Model of the Region Connection Calculus. KR 1998: 330-341 - Christoph Dornheim:

Undecidability of Plane Polygonal Mereotopology. KR 1998: 342-355
Complexity of Reasoning
- Jérôme Lang, Pierre Marquis:

Complexity Results for Independence and Definability in Propositional Logic. KR 1998: 356-367 - Iliano Cervesato, Massimo Franceschet, Angelo Montanari:

The Complexity of Model Checking in Modal Event Calculi with Quantifiers. KR 1998: 368-379 - Thomas Lukasiewicz:

Probabilistic Deduction with Conditional Constraints over Basic Events. KR 1998: 380-393
Logic Programming based Representations II
- Katsumi Inoue, Chiaki Sakama:

Specifying Transactions for Extended Abduction. KR 1998: 394-405 - Thomas Eiter, Nicola Leone, Cristinel Mateis, Gerald Pfeifer, Francesco Scarcello:

The KR System dlv: Progress Report, Comparisons and Benchmarks. KR 1998: 406-417 - Francesco Buccafurri, Nicola Leone, Pasquale Rullo:

Disjunctive Ordered Logic: Semantics and Expressiveness. KR 1998: 418-431
Planning and Execution
- Fahiem Bacchus, Ronald P. A. Petrick:

Modeling an Agent's Incomplete Knowledge During Planning and During Execution. KR 1998: 432-443 - Nicola Muscettola, Paul H. Morris, Ioannis Tsamardinos:

Reformulating Temporal Plans for Efficient Execution. KR 1998: 444-452 - Giuseppe De Giacomo, Raymond Reiter, Mikhail Soutchanski:

Execution Monitoring of High-Level Robot Programs. KR 1998: 453-465
Building, Merging, Revising Theories
- Salem Benferhat, Didier Dubois, Jérôme Lang, Henri Prade, Alessandro Saffiotti, Philippe Smets:

A General Approach for Inconsistency Handling and Merging Information in Prioritized Knowledge Bases. KR 1998: 466-477 - Jaap Kamps:

Formal Theory Building Using Automated Reasoning Tools. KR 1998: 478-487 - Sébastien Konieczny, Ramón Pino Pérez:

On the Logic of Merging. KR 1998: 488-498 - Ralf Küsters:

Characterizing the Semantics of Terminological Cycles in ALN Using Finite Automata. KR 1998: 499-511
Description Logics and Graph Based Languages
- Frank Wolter, Michael Zakharyaschev:

On the Decidability of Description Logics with Modal Operators. KR 1998: 512-523 - Michel Chein, Marie-Laure Mugnier, Geneviève Simonet:

Nested Graphs: A Graph-based Knowledge Representation Model with FOL Semantics. KR 1998: 524-535
Reasoning About Actions III
- Vladimir Lifschitz:

Situation Calculus and Causal Logic. KR 1998: 536-546 - Raymond Reiter:

Sequential, Temporal GOLOG. KR 1998: 547-556 - Graham White, John Bell, Wilfried Hodges:

Building Models of Prediction Theories. KR 1998: 557-569
Probabilistic Reasoning
- Manfred Jaeger:

Reasoning About Infinite Random Structures with Relational Bayesian Networks. KR 1998: 570-581 - Vu A. Ha, Peter Haddawy:

Geometric Foundations for Interval-Based Probabilities. KR 1998: 582-593 - Didier Dubois, Lluís Godo, Henri Prade, Adriana Zapico:

Making Decision in a Qualitative Setting: from Decision under Uncertaintly to Case-based Decision. KR 1998: 594-607
Planning II
- Marco Baioletti, Stefano Marcugini, Alfredo Milani:

Encoding Planning Constraints into Partial Order Planners. KR 1998: 608-616 - Jussi Rintanen:

A Planning Algorithm not based on Directional Search. KR 1998: 617-625
Efficient Modal Reasoning
- Enrico Giunchiglia, Fausto Giunchiglia, Roberto Sebastiani, Armando Tacchella:

More Evaluation of Decision Procedures for Modal Logics. KR 1998: 626-635 - Ian Horrocks:

Using an Expressive Description Logic: FaCT or Fiction? KR 1998: 636-649
Invited Talks
- Katharina Morik:

How to Tailor Representations to Different Requirements. KR 1998: 650 - Hector J. Levesque:

What Robots Can Do. KR 1998: 651 - Maurizio Lenzerini:

Description Logics and their Applications. KR 1998: 652
Panel Abstract

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