Stephen J. Hegner

Stephen J. Hegner: Independent Update Reflections on Interdependent Database Views. Conceptual Modelling and Its Theoretical Foundations 2012: 101-115

Stephen J. Hegner: FD Covers and Universal Complements of Simple Projections. FoIKS 2012: 184-202

Stephen J. Hegner: Information-based distance measures and the canonical reflection of view updates. Ann. Math. Artif. Intell. 63(3-4): 317-355 (2011)

Stephen J. Hegner: Invariance Properties of the Constant-Complement View-Update Strategy. SDKB 2011: 118-148

Stephen J. Hegner: Internal Representation of Database Views. J. UCS 16(20): 2956-2985 (2010)

Stephen J. Hegner: A Model of Independence and Overlap for Transactions on Database Schemata. ADBIS 2010: 204-218

Stephen J. Hegner: A Simple Model of Negotiation for Cooperative Updates on Database Schema Components. EJC 2010: 154-173

Stephen J. Hegner: Characterization of Optimal Complements of Database Views Defined by Projection. SDKB 2010: 73-95

Stephen J. Hegner: Information-Optimal Reflections of View Updates on Relational Database Schemata. FoIKS 2008: 112-131

Stephen J. Hegner: Semantic Bijectivity and the Uniqueness of Constant-Complement Updates in the Relational Context. SDKB 2008: 160-179

Jürgen Dix, Stephen J. Hegner: Preface. Ann. Math. Artif. Intell. 50(1-2): 1-3 (2007)

Stephen J. Hegner, Peggy Schmidt: Update Support for Database Views Via Cooperation. ADBIS 2007: 98-113

Stephen J. Hegner: A Model of Database Components and their Interconnection Based upon Communicating Views. EJC 2007: 79-99

Stephen J. Hegner: The complexity of embedded axiomatization for a class of closed database views. Ann. Math. Artif. Intell. 46(1-2): 38-97 (2006)

Jürgen Dix, Stephen J. Hegner (Eds.): Foundations of Information and Knowledge Systems, 4th International Symposium, FoIKS 2006, Budapest, Hungary, February 14-17, 2006, Proceedings. Lecture Notes in Computer Science 3861, Springer 2006, isbn 3-540-31782-1

Stephen J. Hegner: An Order-Based Theory of Updates for Closed Database Views. Ann. Math. Artif. Intell. 40(1-2): 63-125 (2004)

Stephen J. Hegner: The Relative Complexity of Updates for a Class of Database Views. FoIKS 2004: 155-175

Stephen J. Hegner: Uniqueness of Update Strategies for Database Views. FoIKS 2002: 230-249

Stephen J. Hegner: Characterization of Type Hierarchies with Open Specification. Semantics in Databases 2001: 100-118

Stephen J. Hegner, Paul McKevitt, Peter Norvig, Robert Wilensky: Editorial Intelligent Help Systems for UNIX: Planning and Knowledge Representation. Artif. Intell. Rev. 14(3): 149-152 (2000)

Stephen J. Hegner: Plan Realization for Complex Command Interaction in the UNIX Help Domain. Artif. Intell. Rev. 14(3): 181-228 (2000)

Stephen J. Hegner, Paul McKevitt, Peter Norvig, Robert Wilensky: Editorial Intelligent Help Systems for UNIX: Natural Language Dialogue. Artif. Intell. Rev. 14(4-5): 277-281 (2000)

Stephen J. Hegner: Computational and Structural Aspects of Openly Specified Type Hierarchies. LACL 1998: 48-69

Stephen J. Hegner: A Family of Decidable Feature Logics which Support HPSG-Style Set and List Constructions. LACL 1996: 208-227

Stephen J. Hegner: Unique Complements and Decomposition of Database Schemata. J. Comput. Syst. Sci. 48(1): 9-57 (1994)

Stephen J. Hegner: Characterization of Desirable Properties of General Database Decompositions. Ann. Math. Artif. Intell. 7(1-4): 129-195 (1993)

Stephen J. Hegner: Horn Extended Feature Structures: Fast Unification With Negation And Limited Disjunction. EACL 1991: 33-38

Stephen J. Hegner: Pairwise-Definable Subdirect Decompositions of General Database Schemata. MFDBS 1991: 243-257

Stephen J. Hegner: Foundations of Canonical Update Support for Closed Database Views. ICDT 1990: 422-436

Stephen J. Hegner: Algebraic Representation of Dynamics and Behavior for Continuous-Time Linear Systems. Mathematical Systems Theory 22(4): 227-254 (1989)

Stephen J. Hegner: Decomposition of Relational Schemata into Components Defined by Both Projection and Restriction. PODS 1988: 174-183

Stephen J. Hegner: Specification and Implementation of Programs for Updating Incomplete Information Databases. PODS 1987: 146-158

Stephen J. Hegner: Canonical View Update Support through Boolean Algebras of Components. PODS 1984: 163-173

Stephen J. Hegner: Algebraic Aspects of Relational Database Decomposition. PODS 1983: 400-413

Stephen J. Hegner, Ruth A. Maulucci: Set-theoretic foundations of datastructure representation. Inf. Syst. 3(3): 193-201 (1978)

Stephen J. Hegner: Duality Theory for Discrete-Time Linear Systems. J. Comput. Syst. Sci. 17(1): 116-143 (1978)