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Georg Gottlob :
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Stefano Ceri , Georg Gottlob Translating SQL Into Relational Algebra: Optimization, Semantics, and Equivalence of SQL Queries. [Citation Graph (22, 0)][DBLP ] IEEE Trans. Software Eng., 1985, v:11, n:4, pp:324-345 [Journal ] Georg Gottlob , Paolo Paolini , Roberto Zicari Properties and Update Semantics of Consistent Views. [Citation Graph (15, 36)][DBLP ] ACM Trans. Database Syst., 1988, v:13, n:4, pp:486-524 [Journal ] Stefano Ceri , Georg Gottlob , Gio Wiederhold Interfacing Relational Databases and Prolog Efficiently. [Citation Graph (14, 0)][DBLP ] Expert Database Conf., 1986, pp:207-223 [Conf ] Stefano Ceri , Georg Gottlob , Luigi Lavazza Translation and Optimization of Logic Queries: The Algebraic Approach. [Citation Graph (13, 10)][DBLP ] VLDB, 1986, pp:395-402 [Conf ] Stefano Ceri , Georg Gottlob , Letizia Tanca What you Always Wanted to Know About Datalog (And Never Dared to Ask). [Citation Graph (10, 91)][DBLP ] IEEE Trans. Knowl. Data Eng., 1989, v:1, n:1, pp:146-166 [Journal ] Georg Gottlob , Michael Schrefl , Brigitte Röck Extending Object-Oriented Systems with Roles. [Citation Graph (7, 0)][DBLP ] ACM Trans. Inf. Syst., 1996, v:14, n:3, pp:268-296 [Journal ] Georg Gottlob , Roberto Zicari Closed World Databases Opened Through Null Values. [Citation Graph (6, 24)][DBLP ] VLDB, 1988, pp:50-61 [Conf ] Georg Gottlob , Nicola Leone , Francesco Scarcello The Complexity of Acyclic Conjunctive Queries. [Citation Graph (5, 0)][DBLP ] FOCS, 1998, pp:706-715 [Conf ] Thomas Eiter , Georg Gottlob On the Complexity of Propositional Knowledge Base Revision, Updates, and Counterfactuals. [Citation Graph (5, 30)][DBLP ] PODS, 1992, pp:261-273 [Conf ] Marco Cadoli , Thomas Eiter , Georg Gottlob Default Logic as a Query Language. [Citation Graph (4, 0)][DBLP ] KR, 1994, pp:99-108 [Conf ] Thomas Eiter , Georg Gottlob , Heikki Mannila Adding Disjunction to Datalog. [Citation Graph (4, 25)][DBLP ] PODS, 1994, pp:267-278 [Conf ] Georg Gottlob Computing Covers for Embedded Functional Dependencies. [Citation Graph (4, 17)][DBLP ] PODS, 1987, pp:58-69 [Conf ] Thomas Eiter , Georg Gottlob On the Complexity of Propositional Knowledge Base Revision, Updates, and Counterfactuals. [Citation Graph (4, 0)][DBLP ] Artif. Intell., 1992, v:57, n:2-3, pp:227-270 [Journal ] Stefano Ceri , Georg Gottlob Normalization of Relations and PROLOG. [Citation Graph (4, 0)][DBLP ] Commun. ACM, 1986, v:29, n:6, pp:524-544 [Journal ] Georg Gottlob On the Size of Nonredundant FD-Covers. [Citation Graph (4, 0)][DBLP ] Inf. Process. Lett., 1987, v:24, n:6, pp:355-360 [Journal ] Thomas Eiter , Georg Gottlob Identifying the Minimal Transversals of a Hypergraph and Related Problems. [Citation Graph (4, 0)][DBLP ] SIAM J. Comput., 1995, v:24, n:6, pp:1278-1304 [Journal ] Stefano Ceri , Stefano Crespi-Reghizzi , Georg Gottlob , F. Lamperti , Luigi Lavazza , Letizia Tanca , Roberto Zicari The Algres Project. [Citation Graph (3, 13)][DBLP ] EDBT, 1988, pp:551-555 [Conf ] Thomas Eiter , Georg Gottlob Complexity Aspects of Various Semantics for Disjunctive Databases. [Citation Graph (3, 19)][DBLP ] PODS, 1993, pp:158-167 [Conf ] Georg Gottlob Complexity Results for Nonmonotonic Logics. [Citation Graph (3, 0)][DBLP ] J. Log. Comput., 1992, v:2, n:3, pp:397-425 [Journal ] Thomas Eiter , Georg Gottlob Propositional Circumscription and Extended Closed-World Reasoning are IIp2-Complete. [Citation Graph (3, 0)][DBLP ] Theor. Comput. Sci., 1993, v:114, n:2, pp:231-245 [Journal ] Georg Gottlob , Sherry Marcus , Anil Nerode , Gernot Salzer , V. S. Subrahmanian A Non-Ground Realization of the Stable and Well-Founded Semantics. [Citation Graph (3, 0)][DBLP ] Theor. Comput. Sci., 1996, v:166, n:1&2, pp:221-262 [Journal ] Stefano Ceri , Georg Gottlob , Gio Wiederhold Efficient Database Access from Prolog. [Citation Graph (3, 0)][DBLP ] IEEE Trans. Software Eng., 1989, v:15, n:2, pp:153-164 [Journal ] Evgeny Dantsin , Thomas Eiter , Georg Gottlob , Andrei Voronkov Complexity and Expressive Power of Logic Programming. [Citation Graph (2, 0)][DBLP ] IEEE Conference on Computational Complexity, 1997, pp:82-101 [Conf ] Georg Gottlob , Gerti Kappel , Michael Schrefl Semantics of Object-Oriented Data Models - The Evolving Algebra Approach. [Citation Graph (2, 0)][DBLP ] East/West Database Workshop, 1990, pp:144-160 [Conf ] Georg Gottlob , Nicola Leone , Francesco Scarcello A Comparison of Structural CSP Decomposition Methods. [Citation Graph (2, 0)][DBLP ] IJCAI, 1999, pp:394-399 [Conf ] Georg Gottlob , Nicola Leone , Francesco Scarcello Hypertree Decompositions and Tractable Queries. [Citation Graph (2, 30)][DBLP ] PODS, 1999, pp:21-32 [Conf ] Thomas Eiter , Georg Gottlob , Heikki Mannila Disjunctive Datalog. [Citation Graph (2, 61)][DBLP ] ACM Trans. Database Syst., 1997, v:22, n:3, pp:364-418 [Journal ] Gerhard Friedrich , Georg Gottlob , Wolfgang Nejdl Formaiizing the Repair Process. [Citation Graph (1, 0)][DBLP ] ECAI, 1992, pp:709-713 [Conf ] Georg Gottlob , Guido Moerkotte , V. S. Subrahmanian The PARK Semantics for Active Rules. [Citation Graph (1, 11)][DBLP ] EDBT, 1996, pp:35-55 [Conf ] Thomas Eiter , Georg Gottlob The Complexity of Nested Counterfactuals and Iterated Knowledge Base Revisions. [Citation Graph (1, 0)][DBLP ] IJCAI, 1993, pp:526-533 [Conf ] Georg Gottlob , Nicola Leone , Helmut Veith Second Order Logic and the Weak Exponential Hierarchies. [Citation Graph (1, 0)][DBLP ] MFCS, 1995, pp:66-81 [Conf ] Georg Gottlob , Gerti Kappel , Michael Schrefl The Evolving Algebra Semantics of Class and Role Hierarchies. [Citation Graph (1, 0)][DBLP ] Semantics in Databases, 1995, pp:92-113 [Conf ] Thomas Eiter , Georg Gottlob Complexity Results for Disjunctive Logic Programming and Application to Nonmonotonic Logics. [Citation Graph (1, 0)][DBLP ] ILPS, 1993, pp:266-278 [Conf ] Stefano Ceri , Georg Gottlob , Letizia Tanca , Gio Wiederhold Magic Semi-Joins. [Citation Graph (1, 0)][DBLP ] Inf. Process. Lett., 1989, v:33, n:2, pp:97-107 [Journal ] Stefano Ceri , Georg Gottlob , Giuseppe Pelagatti Taxonomy and formal properties of distributed joins. [Citation Graph (1, 0)][DBLP ] Inf. Syst., 1986, v:11, n:1, pp:25-40 [Journal ] Thomas Eiter , Georg Gottlob The Complexity of Logic-Based Abduction. [Citation Graph (1, 0)][DBLP ] J. ACM, 1995, v:42, n:1, pp:3-42 [Journal ] Georg Gottlob Translating Default Logic into Standard Autoepistemic Logic. [Citation Graph (1, 0)][DBLP ] J. ACM, 1995, v:42, n:4, pp:711-740 [Journal ] Marco Cadoli , Thomas Eiter , Georg Gottlob Default Logic as a Query Language. [Citation Graph (1, 37)][DBLP ] IEEE Trans. Knowl. Data Eng., 1997, v:9, n:3, pp:448-463 [Journal ] Gerhard Friedrich , Georg Gottlob , Wolfgang Nejdl Physical Impossibility Instead of Fault Models. [Citation Graph (0, 0)][DBLP ] AAAI, 1990, pp:331-336 [Conf ] Georg Gottlob , Reinhard Pichler , Fang Wei Bounded Treewidth as a Key to Tractability of Knowledge Representation and Reasoning. [Citation Graph (0, 0)][DBLP ] AAAI, 2006, pp:- [Conf ] Francesco Buccafurri , Georg Gottlob Multiagent Compromises, Joint Fixpoints, and Stable Models. [Citation Graph (0, 0)][DBLP ] Computational Logic: Logic Programming and Beyond, 2002, pp:561-585 [Conf ] Julien Carme , Michal Ceresna , Oliver Frölich , Georg Gottlob , Tamir Hassan , Marcus Herzog , Wolfgang Holzinger , Bernhard Krüpl The Lixto Project: Exploring New Frontiers of Web Data Extraction. [Citation Graph (0, 0)][DBLP ] BNCOD, 2006, pp:1-15 [Conf ] Georg Gottlob Web Data Extraction for Business Intelligence: The Lixto Approach. [Citation Graph (0, 0)][DBLP ] BTW, 2005, pp:30-47 [Conf ] Georg Gottlob Second-Order Logic over Finite Structures - Report on a Research Programme. [Citation Graph (0, 0)][DBLP ] IJCAR, 2004, pp:229-243 [Conf ] Thomas Eiter , Georg Gottlob Complexity of Propositional Knowledge Base Revision. [Citation Graph (0, 0)][DBLP ] CNKBS, 1992, pp:38-40 [Conf ] Georg Gottlob Collapsing Oracle-Tape Hierarchies. [Citation Graph (0, 0)][DBLP ] IEEE Conference on Computational Complexity, 1996, pp:33-42 [Conf ] Georg Gottlob , Christoph Koch XPath Query Processing. [Citation Graph (0, 0)][DBLP ] DBPL, 2003, pp:20- [Conf ] S. Copelli , Georg Gottlob Implementation of a Distributed File System on a Geographic Network of Personal Computers. [Citation Graph (0, 0)][DBLP ] DDSS, 1984, pp:203-219 [Conf ] Georg Gottlob , Nicola Leone , Francesco Scarcello On Tractable Queries and Constraints. [Citation Graph (0, 0)][DBLP ] DEXA, 1999, pp:1-15 [Conf ] Thomas Eiter , Georg Gottlob , Thomas Schwentick Second-Order Logic over Strings: Regular and Non-regular Fragments. [Citation Graph (0, 0)][DBLP ] Developments in Language Theory, 2001, pp:37-56 [Conf ] Georg Gottlob The Power of Beliefs or Translating Default Logic into Standard Autoepistemic Logic. [Citation Graph (0, 0)][DBLP ] ECAI Workshop on Knowledge Representation and Reasoning, 1992, pp:133-144 [Conf ] Georg Gottlob , Martin Hutle , Franz Wotawa Combining hypertree, bicomp, and hinge decomposition. [Citation Graph (0, 0)][DBLP ] ECAI, 2002, pp:161-165 [Conf ] Gerhard Friedrich , Georg Gottlob , Wolfgang Nejdl Towards a Theory of the Repair Process. [Citation Graph (0, 0)][DBLP ] EPIA, 1991, pp:222-236 [Conf ] Gerhard Friedrich , Georg Gottlob , Wolfgang Nejdl Hypothesis Classification, Abductive Diagnosis and Therapy. [Citation Graph (0, 0)][DBLP ] Expert Systems in Engineering, 1990, pp:69-78 [Conf ] Thomas Eiter , Georg Gottlob , Helmut Veith Generalized Quantifiers in Logic Programs. [Citation Graph (0, 0)][DBLP ] ESSLLI, 1997, pp:72-98 [Conf ] Georg Gottlob , Alexander Leitsch Fast Subsumption Algorithms. [Citation Graph (0, 0)][DBLP ] European Conference on Computer Algebra (2), 1985, pp:64-77 [Conf ] Thomas Eiter , Georg Gottlob The Complexity Class Theta2 p : Recent Results and Applications in AI and Modal Logic. [Citation Graph (0, 0)][DBLP ] FCT, 1997, pp:1-18 [Conf ] Georg Gottlob NP Trees and Carnap's Modal Logic [Citation Graph (0, 0)][DBLP ] FOCS, 1993, pp:42-51 [Conf ] Georg Gottlob , Phokion G. Kolaitis , Thomas Schwentick Existential Second-Order Logic over Graphs: Charting the Tractability Frontier. [Citation Graph (0, 0)][DBLP ] FOCS, 2000, pp:664-674 [Conf ] Georg Gottlob Hypergraph Transversals. [Citation Graph (0, 0)][DBLP ] FoIKS, 2004, pp:1-5 [Conf ] Thomas Eiter , Georg Gottlob , Heikki Mannila Disjunctive Logic Programming over Finite Structures. [Citation Graph (0, 0)][DBLP ] GI Jahrestagung, 1994, pp:69-73 [Conf ] Georg Gottlob , Nicola Leone , Francesco Scarcello Computing LOGCFL Certificates. [Citation Graph (0, 0)][DBLP ] ICALP, 1999, pp:361-371 [Conf ] Georg Gottlob , Reinhard Pichler Hypergraphs in Model Checking: Acyclicity and Hypertree-Width versus Clique-Width. [Citation Graph (0, 0)][DBLP ] ICALP, 2001, pp:708-719 [Conf ] Robert Baumgartner , Michal Ceresna , Georg Gottlob , Marcus Herzog , Viktor Zigo Web Information Acquisition with Lixto Suite. [Citation Graph (0, 0)][DBLP ] ICDE, 2003, pp:747-749 [Conf ] Georg Gottlob , Christoph Koch , Reinhard Pichler XPath Query Evaluation: Improving Time and Space Efficiency. [Citation Graph (0, 0)][DBLP ] ICDE, 2003, pp:379-390 [Conf ] Jürgen Dix , Georg Gottlob , V. Wiktor Marek Causal Models of Disjunctive Logic Programs. [Citation Graph (0, 0)][DBLP ] ICLP, 1994, pp:290-302 [Conf ] Thomas Eiter , Georg Gottlob Complexity Results for Logic-Based Abduction. [Citation Graph (0, 0)][DBLP ] Structural Complexity and Recursion-theoretic methods in Logic-Programming, 1992, pp:29-44 [Conf ] Robert Baumgartner , Georg Gottlob On the Complexity of Model Checking for Propositional Default Logics: New Results and Tractable Cases. [Citation Graph (0, 0)][DBLP ] IJCAI, 1999, pp:64-69 [Conf ] Robert Baumgartner , Georg Gottlob , Marcus Herzog Visual Programming of Web Data Aggregation Applications. [Citation Graph (0, 0)][DBLP ] IIWeb, 2003, pp:137-142 [Conf ] Marco Cadoli , Thomas Eiter , Georg Gottlob Complexity of Nested Circumscription and Abnormality Theories. [Citation Graph (0, 0)][DBLP ] IJCAI, 2001, pp:169-174 [Conf ] Thomas Eiter , Georg Gottlob , Yuri Gurevich Curb Your Theory! A Circumspective Approach for Inclusive Interpretation of Disjunctive Information. [Citation Graph (0, 0)][DBLP ] IJCAI, 1993, pp:634-639 [Conf ] Thomas Eiter , Georg Gottlob , Nicola Leone Semantics and Complexity of Abduction from Default Theories. [Citation Graph (0, 0)][DBLP ] IJCAI (1), 1995, pp:870-877 [Conf ] Georg Gottlob The Power of Beliefs or Translating Default Logic into Standard Autoepistemic Logic. [Citation Graph (0, 0)][DBLP ] IJCAI, 1993, pp:570-577 [Conf ] Georg Gottlob , Gianluigi Greco , Francesco Scarcello The Complexity of Quantified Constraint Satisfaction Problems under Structural Restrictions. [Citation Graph (0, 0)][DBLP ] IJCAI, 2005, pp:150-155 [Conf ] Riccardo Rosati , Georg Gottlob Asymptotic Conditional Probability in Modal Logic: A Probabilistic Reconstruction of Nonmonotonic Logic. [Citation Graph (0, 0)][DBLP ] IJCAI, 2005, pp:1378-1383 [Conf ] Georg Gottlob , Gianluigi Greco , Toni Mancini Complexity of Pure Equilibria in Bayesian Games. [Citation Graph (0, 0)][DBLP ] IJCAI, 2007, pp:1294-1299 [Conf ] Georg Gottlob , Gianluigi Greco , Toni Mancini Conditional Constraint Satisfaction: Logical Foundations and Complexity. [Citation Graph (0, 0)][DBLP ] IJCAI, 2007, pp:88-93 [Conf ] Georg Gottlob , Nicola Leone , Francesco Scarcello On the Complexity of Some Inductive Logic Programming Problems. [Citation Graph (0, 0)][DBLP ] ILP, 1997, pp:17-32 [Conf ] Thomas Eiter , Georg Gottlob , Heikki Mannila Expressive Power and Complexity of Disjunctive Datalog under the Stable Model Semantics. [Citation Graph (0, 0)][DBLP ] IS/KI, 1994, pp:83-103 [Conf ] Thomas Eiter , Georg Gottlob Hypergraph Transversal Computation and Related Problems in Logic and AI. [Citation Graph (0, 0)][DBLP ] JELIA, 2002, pp:549-564 [Conf ] Georg Gottlob From Carnap's Modal Logic to Autoepistemic Logic. [Citation Graph (0, 0)][DBLP ] JELIA, 1994, pp:1-18 [Conf ] Nicola Leone , Gerald Pfeifer , Wolfgang Faber , Francesco Calimeri , Tina Dell'Armi , Thomas Eiter , Georg Gottlob , Giovambattista Ianni , Giuseppe Ielpa , Christoph Koch , Simona Perri , Axel Polleres The DLV System. [Citation Graph (0, 0)][DBLP ] JELIA, 2002, pp:537-540 [Conf ] Georg Gottlob Complexity and Expressive Power of KR Formalisms (Invited Talk Abstract). [Citation Graph (0, 0)][DBLP ] KR, 1996, pp:647-649 [Conf ] Thomas Eiter , Georg Gottlob , Yuri Gurevich Existential Second-Order Logic over Strings. [Citation Graph (0, 0)][DBLP ] LICS, 1998, pp:16-27 [Conf ] Georg Gottlob Relativized Logspace and Generalized Quantifiers over Finite Structures [Citation Graph (0, 0)][DBLP ] LICS, 1995, pp:65-78 [Conf ] Georg Gottlob , Christoph Koch Monadic Queries over Tree-Structured Data. [Citation Graph (0, 0)][DBLP ] LICS, 2002, pp:189-202 [Conf ] Georg Gottlob , Reinhard Pichler Working with Arms: Complexity Results on Atomic Representations of Herbrand Models. [Citation Graph (0, 0)][DBLP ] LICS, 1999, pp:306-315 [Conf ] Robert Baumgartner , Sergio Flesca , Georg Gottlob The Elog Web Extraction Language. [Citation Graph (0, 0)][DBLP ] LPAR, 2001, pp:548-560 [Conf ] Thomas Eiter , Georg Gottlob On the Complexity of Theory Curbing. [Citation Graph (0, 0)][DBLP ] LPAR, 2000, pp:1-19 [Conf ] Georg Gottlob , Christos H. Papadimitriou On the Complexity of Single-Rule Datalog Queries. [Citation Graph (0, 0)][DBLP ] LPAR, 1999, pp:201-222 [Conf ] Thomas Eiter , Georg Gottlob , Nicola Leone Complexity Results for Abductive Logic Programming. [Citation Graph (0, 0)][DBLP ] LPNMR, 1995, pp:1-14 [Conf ] Thomas Eiter , Georg Gottlob , Helmut Veith Modular Logic Programming and Generalized Quantifiers. [Citation Graph (0, 0)][DBLP ] LPNMR, 1997, pp:290-309 [Conf ] Robert Baumgartner , Sergio Flesca , Georg Gottlob Declarative Information Extraction, Web Crawling, and Recursive Wrapping with Lixto. [Citation Graph (0, 0)][DBLP ] LPNMR, 2001, pp:21-41 [Conf ] Georg Gottlob Recent Complexity Results in Logic Programming and Nonmonotonic Reasoning, and Why They Matter (Invited Talk Abstract). [Citation Graph (0, 0)][DBLP ] LPNMR, 1993, pp:265- [Conf ] Georg Gottlob , Francesco Scarcello , Martha Sideri Fixed-Parameter Complexity in AI and Nonmonotonic Reasoning. [Citation Graph (0, 0)][DBLP ] LPNMR, 1999, pp:1-18 [Conf ] Nicola Leone , Thomas Eiter , Wolfgang Faber , Michael Fink , Georg Gottlob , Luigi Granata , Gianluigi Greco , Edyta Kalka , Giovambattista Ianni , Domenico Lembo , Maurizio Lenzerini , Vincenzino Lio , Bartosz Nowicki , Riccardo Rosati , Marco Ruzzi , Witold Staniszkis , Giorgio Terracina Data Integration: a Challenging ASP Application. [Citation Graph (0, 0)][DBLP ] LPNMR, 2005, pp:379-383 [Conf ] Georg Gottlob , Nicola Leone , Francesco Scarcello Hypertree Decompositions: A Survey. [Citation Graph (0, 0)][DBLP ] MFCS, 2001, pp:37-57 [Conf ] Georg Gottlob , Michael Schrefl , Markus Stumptner On the Interaction between Transitive Closure and Functional Dependencies. [Citation Graph (0, 19)][DBLP ] MFDBS, 1989, pp:187-206 [Conf ] Georg Gottlob Visual Data Extraction Through Visual Logic Programming. [Citation Graph (0, 0)][DBLP ] NMR, 2002, pp:4- [Conf ] Georg Gottlob On the Complexity of Clause Condensing. [Citation Graph (0, 0)][DBLP ] ÖGAI, 1991, pp:16-29 [Conf ] Georg Gottlob Computing cores for data exchange: new algorithms and practical solutions. [Citation Graph (0, 0)][DBLP ] PODS, 2005, pp:148-159 [Conf ] Georg Gottlob , Christoph Koch Monadic Datalog and the Expressive Power of Languages for Web Information Extraction. [Citation Graph (0, 0)][DBLP ] PODS, 2002, pp:17-28 [Conf ] Georg Gottlob , Christoph Koch , Robert Baumgartner , Marcus Herzog , Sergio Flesca The Lixto Data Extraction Project - Back and Forth between Theory and Practice. [Citation Graph (0, 0)][DBLP ] PODS, 2004, pp:1-12 [Conf ] Georg Gottlob , Christoph Koch , Reinhard Pichler The complexity of XPath query evaluation. [Citation Graph (0, 0)][DBLP ] PODS, 2003, pp:179-190 [Conf ] Georg Gottlob , Christoph Koch , Klaus U. Schulz Conjunctive Queries over Trees. [Citation Graph (0, 0)][DBLP ] PODS, 2004, pp:189-200 [Conf ] Georg Gottlob , Nicola Leone , Francesco Scarcello Robbers, Marshals, and Guards: Game Theoretic and Logical Characterizations of Hypertree Width. [Citation Graph (0, 0)][DBLP ] PODS, 2001, pp:- [Conf ] Georg Gottlob , Alan Nash Data exchange: computing cores in polynomial time. [Citation Graph (0, 0)][DBLP ] PODS, 2006, pp:40-49 [Conf ] Georg Gottlob , Reinhard Pichler , Fang Wei Tractable database design through bounded treewidth. [Citation Graph (0, 0)][DBLP ] PODS, 2006, pp:124-133 [Conf ] Robert Baumgartner , Thomas Eiter , Georg Gottlob , Marcus Herzog , Christoph Koch Information Extraction for the Semantic Web. [Citation Graph (0, 0)][DBLP ] Reasoning Web, 2005, pp:275-289 [Conf ] Tim Furche , Benedikt Linse , François Bry , Dimitris Plexousakis , Georg Gottlob RDF Querying: Language Constructs and Evaluation Methods Compared. [Citation Graph (0, 0)][DBLP ] Reasoning Web, 2006, pp:1-52 [Conf ] Robert Baumgartner , Georg Gottlob , Marcus Herzog , Wolfgang Slany Interactively Adding Web Service Interfaces to Existing Web Applications. [Citation Graph (0, 0)][DBLP ] SAINT, 2004, pp:74-80 [Conf ] Georg Gottlob The Lixto Wrapper Generation Tool. [Citation Graph (0, 0)][DBLP ] SEBD, 2001, pp:3-10 [Conf ] Georg Gottlob , Nicola Leone , Francesco Scarcello Robbers, Marshals, and Guards: Game Theoretic and Logical Characterizations of Hypertree Width. [Citation Graph (0, 0)][DBLP ] SEBD, 2001, pp:147-154 [Conf ] Georg Gottlob , Nicola Leone , Francesco Scarcello Hypertree Decompositions and Tractable Queries. [Citation Graph (0, 0)][DBLP ] SEBD, 1999, pp:275-289 [Conf ] Nicola Leone , Thomas Eiter , Wolfgang Faber , Michael Fink , Georg Gottlob , Gianluigi Greco Boosting Information Integration: The INFOMIX System. [Citation Graph (0, 0)][DBLP ] SEBD, 2005, pp:55-66 [Conf ] Fabian Abel , Robert Baumgartner , Adrian Brooks , Christian Enzi , Georg Gottlob , Nicola Henze , Marcus Herzog , Matthias Kriesell , Wolfgang Nejdl , Kai Tomaschewski The Personal Publication Reader. [Citation Graph (0, 0)][DBLP ] International Semantic Web Conference, 2005, pp:1050-1053 [Conf ] Nicola Leone , Gianluigi Greco , Giovambattista Ianni , Vincenzino Lio , Giorgio Terracina , Thomas Eiter , Wolfgang Faber , Michael Fink , Georg Gottlob , Riccardo Rosati , Domenico Lembo , Maurizio Lenzerini , Marco Ruzzi , Edyta Kalka , Bartosz Nowicki , Witold Staniszkis The INFOMIX system for advanced integration of incomplete and inconsistent data. [Citation Graph (0, 0)][DBLP ] SIGMOD Conference, 2005, pp:915-917 [Conf ] Georg Gottlob Complexity and Expressive Power of Disjunctive Logic Programming. [Citation Graph (0, 0)][DBLP ] SLP, 1994, pp:23-42 [Conf ] Georg Gottlob , Christoph Koch A Formal Comparison of Visual Web Wrapper Generators. [Citation Graph (0, 0)][DBLP ] SOFSEM, 2006, pp:30-48 [Conf ] Thomas Eiter , Georg Gottlob The Complexity of Logic-Based Abduction. [Citation Graph (0, 0)][DBLP ] STACS, 1993, pp:70-79 [Conf ] Thomas Eiter , Georg Gottlob , Kazuhisa Makino New results on monotone dualization and generating hypergraph transversals. [Citation Graph (0, 0)][DBLP ] STOC, 2002, pp:14-22 [Conf ] Georg Gottlob , Gianluigi Greco , Francesco Scarcello Pure Nash equilibria: hard and easy games. [Citation Graph (0, 0)][DBLP ] TARK, 2003, pp:215-230 [Conf ] Marcus Herzog , Georg Gottlob InfoPipes: A Flexible Framework for M-Commerce Applications. [Citation Graph (0, 0)][DBLP ] TES, 2001, pp:175-186 [Conf ] Robert Baumgartner , Sergio Flesca , Georg Gottlob Visual Web Information Extraction with Lixto. [Citation Graph (0, 0)][DBLP ] VLDB, 2001, pp:119-128 [Conf ] Robert Baumgartner , Sergio Flesca , Georg Gottlob Supervised Wrapper Generation with Lixto. [Citation Graph (0, 0)][DBLP ] VLDB, 2001, pp:715-716 [Conf ] Georg Gottlob , Christoph Koch , Reinhard Pichler Efficient Algorithms for Processing XPath Queries. [Citation Graph (0, 0)][DBLP ] VLDB, 2002, pp:95-106 [Conf ] Georg Gottlob , Martin Grohe , Nysret Musliu , Marko Samer , Francesco Scarcello Hypertree Decompositions: Structure, Algorithms, and Applications. [Citation Graph (0, 0)][DBLP ] WG, 2005, pp:1-15 [Conf ] Simona Citrigno , Thomas Eiter , Wolfgang Faber , Georg Gottlob , Christoph Koch , Nicola Leone , Cristinel Mateis , Gerald Pfeifer , Francesco Scarcello The dlv System: Model Generator and Advanced Frontends (system description). [Citation Graph (0, 0)][DBLP ] WLP, 1997, pp:0-0 [Conf ] Robert Baumgartner , Oliver Frölich , Georg Gottlob , Marcus Herzog , Peter Lehmann Integrating Semi-structured Data into Business Applications: A Web Intelligence Example. [Citation Graph (0, 0)][DBLP ] Wissensmanagement (LNCS Volume), 2005, pp:469-482 [Conf ] Stefano Ceri , Georg Gottlob , Giuseppe Pelagatti Joining Fragmented Relations in Distributed Databases. [Citation Graph (0, 0)][DBLP ] XP4.5 Workshop on Database Theory, 1983, pp:- [Conf ] Georg Gottlob , Leonid Libkin Investigation on Armstrong relations, dependency inference, and excluded functional dependencies. [Citation Graph (0, 0)][DBLP ] Acta Cybern., 1990, v:9, n:4, pp:385-402 [Journal ] Francesco Buccafurri , Thomas Eiter , Georg Gottlob , Nicola Leone Enhancing Model Checking in Verification by AI Techniques. [Citation Graph (0, 0)][DBLP ] Artif. Intell., 1999, v:112, n:1-2, pp:57-104 [Journal ] Marco Cadoli , Thomas Eiter , Georg Gottlob An Efficient Method for Eliminating Varying Predicates from a Circumscription. [Citation Graph (0, 0)][DBLP ] Artif. Intell., 1992, v:54, n:2, pp:397-410 [Journal ] Thomas Eiter , Georg Gottlob , Nicola Leone Semantics and Complexity of Abduction from Default Theories. [Citation Graph (0, 0)][DBLP ] Artif. Intell., 1997, v:90, n:1-2, pp:177-223 [Journal ] Georg Gottlob , Christian G. Fermüller Removing Redundancy from a Clause. [Citation Graph (0, 0)][DBLP ] Artif. Intell., 1993, v:61, n:2, pp:263-289 [Journal ] Georg Gottlob , Nicola Leone , Francesco Scarcello A comparison of structural CSP decomposition methods. [Citation Graph (0, 0)][DBLP ] Artif. Intell., 2000, v:124, n:2, pp:243-282 [Journal ] Georg Gottlob , Zhang Mingyi Cumulative Default Logic: Finite Characterization, Algorithms, and Complexity. [Citation Graph (0, 0)][DBLP ] Artif. Intell., 1994, v:69, n:1-2, pp:329-345 [Journal ] Georg Gottlob , Francesco Scarcello , Martha Sideri Fixed-parameter complexity in AI and nonmonotonic reasoning. [Citation Graph (0, 0)][DBLP ] Artif. Intell., 2002, v:138, n:1-2, pp:55-86 [Journal ] Thomas Eiter , Georg Gottlob On the Computational Cost of Disjunctive Logic Programming: Propositional Case. [Citation Graph (0, 0)][DBLP ] Ann. Math. Artif. Intell., 1995, v:15, n:3-4, pp:289-323 [Journal ] Gerhard Friedrich , Georg Gottlob , Wolfgang Nejdl Formalizing the Repair Process - Extended Report. [Citation Graph (0, 0)][DBLP ] Ann. Math. Artif. Intell., 1994, v:11, n:1-4, pp:187-201 [Journal ] Thomas Eiter , Georg Gottlob , Yuri Gurevich Normal Forms for Second-Order Logic over Finite Structures, and Classification of NP Optimization Problems. [Citation Graph (0, 0)][DBLP ] Ann. Pure Appl. Logic, 1996, v:78, n:1-3, pp:111-125 [Journal ] Georg Gottlob , Nicola Leone , Helmut Veith Succinctness as a Source of Complexity in Logical Formalisms. [Citation Graph (0, 0)][DBLP ] Ann. Pure Appl. Logic, 1999, v:97, n:1-3, pp:231-260 [Journal ] Marco Cadoli , Thomas Eiter , Georg Gottlob Complexity of Nested Circumscription and Nested Abnormality Theories [Citation Graph (0, 0)][DBLP ] CoRR, 2002, v:0, n:, pp:- [Journal ] Nicola Leone , Gerald Pfeifer , Wolfgang Faber , Thomas Eiter , Georg Gottlob , Simona Perri , Francesco Scarcello The DLV System for Knowledge Representation and Reasoning [Citation Graph (0, 0)][DBLP ] CoRR, 2002, v:0, n:, pp:- [Journal ] Georg Gottlob , Christoph Koch Monadic Datalog and the Expressive Power of Languages for Web Information Extraction [Citation Graph (0, 0)][DBLP ] CoRR, 2002, v:0, n:, pp:- [Journal ] Georg Gottlob , Christoph Koch A Formal Comparison of Visual Web Wrapper Generators [Citation Graph (0, 0)][DBLP ] CoRR, 2003, v:0, n:, pp:- [Journal ] Georg Gottlob , Nicola Leone , Francesco Scarcello Hypertree Decompositions and Tractable Queries [Citation Graph (0, 0)][DBLP ] CoRR, 1998, v:0, n:, pp:- [Journal ] Thomas Eiter , Georg Gottlob , Kazuhisa Makino New Results on Monotone Dualization and Generating Hypergraph Transversals [Citation Graph (0, 0)][DBLP ] CoRR, 2002, v:0, n:, pp:- [Journal ] Evgeny Dantsin , Thomas Eiter , Georg Gottlob , Andrei Voronkov Complexity and expressive power of logic programming. [Citation Graph (0, 0)][DBLP ] ACM Comput. Surv., 2001, v:33, n:3, pp:374-425 [Journal ] Georg Gottlob , Michael Schrefl , Markus Stumptner Selective Inheritance of Attribute Values in Relational Databases. [Citation Graph (0, 0)][DBLP ] Discrete Applied Mathematics, 1992, v:40, n:2, pp:187-216 [Journal ] Gerhard Brewka , Georg Gottlob Well-Founded Semantics for Default Logic. [Citation Graph (0, 0)][DBLP ] Fundam. Inform., 1997, v:31, n:3/4, pp:221-236 [Journal ] Jürgen Dix , Georg Gottlob , V. Wiktor Marek Reducing Disjunctive to Non-Disjunctive Semantics by Shift-Operations. [Citation Graph (0, 0)][DBLP ] Fundam. Inform., 1996, v:28, n:1-2, pp:87-100 [Journal ] Thomas Eiter , Georg Gottlob Reasoning with parsimonious and moderately grounded expansions. [Citation Graph (0, 0)][DBLP ] Fundam. Inform., 1992, v:17, n:1-2, pp:31-53 [Journal ] Georg Gottlob , Miroslaw Truszczynski Approximating the Stable Model Semantics is Hard. [Citation Graph (0, 0)][DBLP ] Fundam. Inform., 1996, v:28, n:1-2, pp:123-128 [Journal ] Georg Gottlob The Complexity of Default Reasoning under the Stationary Fixed Point Semantics [Citation Graph (0, 0)][DBLP ] Inf. Comput., 1995, v:121, n:1, pp:81-92 [Journal ] Georg Gottlob , Reinhard Pichler Working with ARMs: Complexity Results on Atomic Representations of Herbrand Models. [Citation Graph (0, 0)][DBLP ] Inf. Comput., 2001, v:165, n:2, pp:183-207 [Journal ] Georg Gottlob , Christos H. Papadimitriou On the complexity of single-rule datalog queries. [Citation Graph (0, 0)][DBLP ] Inf. Comput., 2003, v:183, n:1, pp:104-122 [Journal ] Georg Gottlob Subsumption and Implication. [Citation Graph (0, 0)][DBLP ] Inf. Process. Lett., 1987, v:24, n:2, pp:109-111 [Journal ] Thomas Eiter , Yuri Gurevich , Georg Gottlob Existential second-order logic over strings. [Citation Graph (0, 0)][DBLP ] J. ACM, 2000, v:47, n:1, pp:77-131 [Journal ] Georg Gottlob NP Trees and Carnap's Modal Logic. [Citation Graph (0, 0)][DBLP ] J. ACM, 1995, v:42, n:2, pp:421-457 [Journal ] Georg Gottlob , Christoph Koch Monadic datalog and the expressive power of languages for Web information extraction. [Citation Graph (0, 0)][DBLP ] J. ACM, 2004, v:51, n:1, pp:74-113 [Journal ] Georg Gottlob , Christoph Koch , Reinhard Pichler , Luc Segoufin The complexity of XPath query evaluation and XML typing. [Citation Graph (0, 0)][DBLP ] J. ACM, 2005, v:52, n:2, pp:284-335 [Journal ] Georg Gottlob , Phokion G. Kolaitis , Thomas Schwentick Existential second-order logic over graphs: Charting the tractability frontier. [Citation Graph (0, 0)][DBLP ] J. ACM, 2004, v:51, n:2, pp:312-362 [Journal ] Georg Gottlob , Alexander Leitsch On the Efficiency of Subsumption Algorithms [Citation Graph (0, 0)][DBLP ] J. ACM, 1985, v:32, n:2, pp:280-295 [Journal ] Georg Gottlob , Nicola Leone , Francesco Scarcello The complexity of acyclic conjunctive queries. [Citation Graph (0, 0)][DBLP ] J. ACM, 2001, v:48, n:3, pp:431-498 [Journal ] Georg Gottlob , Christoph Koch , Klaus U. Schulz Conjunctive queries over trees. [Citation Graph (0, 0)][DBLP ] J. ACM, 2006, v:53, n:2, pp:238-272 [Journal ] Francesco Buccafurri , Thomas Eiter , Georg Gottlob , Nicola Leone On ACTL Formulas Having Linear Counterexamples. [Citation Graph (0, 0)][DBLP ] J. Comput. Syst. Sci., 2001, v:62, n:3, pp:463-515 [Journal ] Thomas Eiter , Georg Gottlob The Complexity of Nested Counterfactuals and Iterated Knowledge Base Revisions. [Citation Graph (0, 0)][DBLP ] J. Comput. Syst. Sci., 1996, v:53, n:3, pp:497-512 [Journal ] Georg Gottlob Guest Editor's Foreword. [Citation Graph (0, 0)][DBLP ] J. Comput. Syst. Sci., 2003, v:66, n:1, pp:1- [Journal ] Georg Gottlob , Nicola Leone , Francesco Scarcello Hypertree Decompositions and Tractable Queries. [Citation Graph (0, 0)][DBLP ] J. Comput. Syst. Sci., 2002, v:64, n:3, pp:579-627 [Journal ] Georg Gottlob , Nicola Leone , Francesco Scarcello Robbers, marshals, and guards: game theoretic and logical characterizations of hypertree width. [Citation Graph (0, 0)][DBLP ] J. Comput. Syst. Sci., 2003, v:66, n:4, pp:775-808 [Journal ] Thomas Eiter , Georg Gottlob Expressiveness of Stable Model Semantics for Disjuncitve Logic Programs with Functions. [Citation Graph (0, 0)][DBLP ] J. Log. Program., 1997, v:33, n:2, pp:167-178 [Journal ] Stefano Ceri , Georg Gottlob Optimizing Joins between Two Partitioned Relations in Distributed Databases. [Citation Graph (0, 0)][DBLP ] J. Parallel Distrib. Comput., 1986, v:3, n:2, pp:183-205 [Journal ] Thomas Eiter , Georg Gottlob On the Expressiveness of Frame Satisfiability and Fragments of Second-Order Logic. [Citation Graph (0, 0)][DBLP ] J. Symb. Log., 1998, v:63, n:1, pp:73-82 [Journal ] Georg Gottlob Relativized Logspace and Generalized Quantifiers over Finite Ordered Structures. [Citation Graph (0, 0)][DBLP ] J. Symb. Log., 1997, v:62, n:2, pp:545-574 [Journal ] Thomas Eiter , Georg Gottlob Mächtigkeit von Logikprogrammierung über Datenbanken. [Citation Graph (0, 0)][DBLP ] KI, 1996, v:10, n:3, pp:32-39 [Journal ] Thomas Eiter , Georg Gottlob , Nicola Leone On the Indiscernibility of Individuals in Logic Programming. [Citation Graph (0, 0)][DBLP ] J. Log. Comput., 1997, v:7, n:6, pp:805-824 [Journal ] Anuj Dawar , Georg Gottlob , Lauri Hella Capturing Relativized Complexity Classes without Order. [Citation Graph (0, 0)][DBLP ] Math. Log. Q., 1998, v:44, n:, pp:109-122 [Journal ] Georg Gottlob , Miki Hermann , Michaël Rusinowitch 2nd International Workshop on Complexity in Automated Deduction (CiAD) - Foreword. [Citation Graph (0, 0)][DBLP ] Theory Comput. Syst., 2004, v:37, n:6, pp:639-640 [Journal ] Georg Gottlob , Nicola Leone , Francesco Scarcello On the Complexity of Some Inductive Logic Programming Problems. [Citation Graph (0, 0)][DBLP ] New Generation Comput., 1999, v:17, n:1, pp:53-75 [Journal ] Thomas Eiter , Georg Gottlob , Kazuhisa Makino New Results on Monotone Dualization and Generating Hypergraph Transversals. [Citation Graph (0, 0)][DBLP ] SIAM J. Comput., 2003, v:32, n:2, pp:514-537 [Journal ] Georg Gottlob , Reinhard Pichler Hypergraphs in Model Checking: Acyclicity and Hypertree-Width versus Clique-Width. [Citation Graph (0, 0)][DBLP ] SIAM J. Comput., 2004, v:33, n:2, pp:351-378 [Journal ] Georg Gottlob , Christoph Koch Logic-based Web Information Extraction. [Citation Graph (0, 0)][DBLP ] SIGMOD Record, 2004, v:33, n:2, pp:87-94 [Journal ] Georg Gottlob , Christoph Koch , Reinhard Pichler XPath Processing in a Nutshell. [Citation Graph (0, 0)][DBLP ] SIGMOD Record, 2003, v:32, n:1, pp:12-19 [Journal ] Georg Gottlob , Christoph Koch , Reinhard Pichler XPath processing in a nutshell. [Citation Graph (0, 0)][DBLP ] SIGMOD Record, 2003, v:32, n:2, pp:21-27 [Journal ] Robert Baumgartner , Georg Gottlob Propositional default logics made easier: computational complexity of model checking. [Citation Graph (0, 0)][DBLP ] Theor. Comput. Sci., 2002, v:289, n:1, pp:591-627 [Journal ] Thomas Eiter , Georg Gottlob , Nicola Leone Abduction from Logic Programs: Semantics and Complexity. [Citation Graph (0, 0)][DBLP ] Theor. Comput. Sci., 1997, v:189, n:1-2, pp:129-177 [Journal ] Georg Gottlob , Nicola Leone , Francesco Scarcello Computing LOGCFL certificates. [Citation Graph (0, 0)][DBLP ] Theor. Comput. Sci., 2002, v:270, n:1-2, pp:761-777 [Journal ] Thomas Eiter , Georg Gottlob Reasoning under minimal upper bounds in propositional logic. [Citation Graph (0, 0)][DBLP ] Theor. Comput. Sci., 2006, v:369, n:1-3, pp:82-115 [Journal ] Marco Cadoli , Thomas Eiter , Georg Gottlob Complexity of propositional nested circumscription and nested abnormality theories. [Citation Graph (0, 0)][DBLP ] ACM Trans. Comput. Log., 2005, v:6, n:2, pp:232-272 [Journal ] Georg Gottlob , Erich Grädel , Helmut Veith Datalog LITE: a deductive query language with linear time model checking. [Citation Graph (0, 0)][DBLP ] ACM Trans. Comput. Log., 2002, v:3, n:1, pp:42-79 [Journal ] Nicola Leone , Gerald Pfeifer , Wolfgang Faber , Thomas Eiter , Georg Gottlob , Simona Perri , Francesco Scarcello The DLV system for knowledge representation and reasoning. [Citation Graph (0, 0)][DBLP ] ACM Trans. Comput. Log., 2006, v:7, n:3, pp:499-562 [Journal ] Georg Gottlob , Christoph Koch , Reinhard Pichler Efficient algorithms for processing XPath queries. [Citation Graph (0, 0)][DBLP ] ACM Trans. Database Syst., 2005, v:30, n:2, pp:444-491 [Journal ] Georg Gottlob , Reinhard Pichler , Fang Wei Efficient Datalog Abduction through Bounded Treewidth. [Citation Graph (0, 0)][DBLP ] AAAI, 2007, pp:1626-1631 [Conf ] Robert Baumgartner , Oliver Frölich , Georg Gottlob The Lixto Systems Applications in Business Intelligence and Semantic Web. [Citation Graph (0, 0)][DBLP ] ESWC, 2007, pp:16-26 [Conf ] Georg Gottlob , Zoltán Miklós , Thomas Schwentick Generalized hypertree decompositions: np-hardness and tractable variants. [Citation Graph (0, 0)][DBLP ] PODS, 2007, pp:13-22 [Conf ] Georg Gottlob , Reinhard Pichler , Fang Wei Monadic datalog over finite structures with bounded treewidth. [Citation Graph (0, 0)][DBLP ] PODS, 2007, pp:165-174 [Conf ] François Bry , Norbert Eisinger , Thomas Eiter , Tim Furche , Georg Gottlob , Clemens Ley , Benedikt Linse , Reinhard Pichler , Fang Wei Foundations of Rule-Based Query Answering. [Citation Graph (0, 0)][DBLP ] Reasoning Web, 2007, pp:1-153 [Conf ] Georg Gottlob , Gianluigi Greco On the complexity of combinatorial auctions: structured item graphs and hypertree decomposition. [Citation Graph (0, 0)][DBLP ] ACM Conference on Electronic Commerce, 2007, pp:152-161 [Conf ] Georg Gottlob , Marko Samer A Backtracking-Based Algorithm for Computing Hypertree-Decompositions [Citation Graph (0, 0)][DBLP ] CoRR, 2007, v:0, n:, pp:- [Journal ] Georg Gottlob , Christoph Koch , Klaus U. Schulz Conjunctive Queries over Trees [Citation Graph (0, 0)][DBLP ] CoRR, 2006, v:0, n:, pp:- [Journal ] Georg Gottlob , Stephanie Tien Lee A logical approach to multicut problems. [Citation Graph (0, 0)][DBLP ] Inf. Process. Lett., 2007, v:103, n:4, pp:136-141 [Journal ] Georg Gottlob , Gianluigi Greco , Francesco Scarcello Pure Nash Equilibria: Hard and Easy Games. [Citation Graph (0, 0)][DBLP ] J. Artif. Intell. Res. (JAIR), 2005, v:24, n:, pp:357-406 [Journal ] Abduction with Bounded Treewidth: From Theoretical Tractability to Practically Efficient Computation. [Citation Graph (, )][DBLP ] Ontological Reasoning with F-logic Lite and its Extensions. [Citation Graph (, )][DBLP ] Wormholes of Communication: Interfacing Virtual Worlds and the Real World. [Citation Graph (, )][DBLP ] HyperConsistency Width for Constraint Satisfaction: Algorithms and Complexity Results. [Citation Graph (, )][DBLP ] Tree Projections: Game Characterization and Computational Aspects. [Citation Graph (, )][DBLP ] The Model Checking Problem for Prefix Classes of Second-Order Logic: A Survey. [Citation Graph (, )][DBLP ] Uniform Constraint Satisfaction Problems and Database Theory. [Citation Graph (, )][DBLP ] Tractable Query Answering over Ontologies with Datalog+/-. [Citation Graph (, )][DBLP ] Taming the Infinite Chase: Query Answering under Expressive Relational Constraints. [Citation Graph (, )][DBLP ] Tractable Query Answering over Conceptual Schemata. [Citation Graph (, )][DBLP ] Semantic Web Search Based on Ontological Conjunctive Queries. [Citation Graph (, )][DBLP ] Tractable Optimization Problems through Hypergraph-Based Structural Restrictions. [Citation Graph (, )][DBLP ] Datalog± : a unified approach to ontologies and integrity constraints. [Citation Graph (, )][DBLP ] Query Answering in the Description Logic Horn-. [Citation Graph (, )][DBLP ] Taming the Infinite Chase: Query Answering under Expressive Relational Constraints. [Citation Graph (, )][DBLP ] Datalog+/-: A Family of Logical Knowledge Representation and Query Languages for New Applications. [Citation Graph (, )][DBLP ] Querying the Guarded Fragment. [Citation Graph (, )][DBLP ] Balanced Queries: Divide and Conquer. [Citation Graph (, )][DBLP ] Heuristic Methods for Hypertree Decomposition. [Citation Graph (, )][DBLP ] Distributed XML design. [Citation Graph (, )][DBLP ] Size and treewidth bounds for conjunctive queries. [Citation Graph (, )][DBLP ] A general datalog-based framework for tractable query answering over ontologies. [Citation Graph (, )][DBLP ] On the complexity of deriving schema mappings from database instances. [Citation Graph (, )][DBLP ] Alternation as a programming paradigm. [Citation Graph (, )][DBLP ] Inductive reasoning and semantic web search. [Citation Graph (, )][DBLP ] Datalog+/-: A Unified Approach to Ontologies and Integrity Constraints. [Citation Graph (, )][DBLP ] A General Datalog-Based Framework for Tractable Query Answering over Ontologies (extended abstract). [Citation Graph (, )][DBLP ] Combining Semantic Web Search with the Power of Inductive Reasoning. [Citation Graph (, )][DBLP ] Query Answering under Non-guarded Rules in Datalog+/-. [Citation Graph (, )][DBLP ] Combining Semantic Web Search with the Power of Inductive Reasoning. [Citation Graph (, )][DBLP ] Query Rewriting under Non-Guarded Rules. [Citation Graph (, )][DBLP ] Service Marts. [Citation Graph (, )][DBLP ] Web Data Extraction for Service Creation. [Citation Graph (, )][DBLP ] Bounded treewidth as a key to tractability of knowledge representation and reasoning. [Citation Graph (, )][DBLP ] Width Parameters Beyond Tree-width and their Applications. [Citation Graph (, )][DBLP ] Fixed-Parameter Algorithms For Artificial Intelligence, Constraint Satisfaction and Database Problems. [Citation Graph (, )][DBLP ] Monadic Datalog over Finite Structures with Bounded Treewidth [Citation Graph (, )][DBLP ] Computational aspects of monotone dualization: A brief survey. [Citation Graph (, )][DBLP ] Hypertree width and related hypergraph invariants. [Citation Graph (, )][DBLP ] Search in 0.205secs, Finished in 0.218secs