2010 | ||
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136 | Solmaz Kolahi, Leonid Libkin: An information-theoretic analysis of worst-case redundancy in database design. ACM Trans. Database Syst. 35(1): (2010) | |
2009 | ||
135 | Leonid Libkin, Cristina Sirangelo: Open and Closed World Assumptions in Data Exchange. Description Logics 2009 | |
134 | Pablo Barceló, Leonid Libkin, Antonella Poggi, Cristina Sirangelo: XML with incomplete information: models, properties, and query answering. PODS 2009: 237-246 | |
133 | Shun'ichi Amano, Leonid Libkin, Filip Murlak: XML schema mappings. PODS 2009: 33-42 | |
132 | Leonid Libkin: The finite model theory toolbox of a database theoretician. PODS 2009: 65-76 | |
131 | Leonid Libkin: Expressive Power of Query Languages. Encyclopedia of Database Systems 2009: 1081-1083 | |
130 | Anthony Widjaja To, Leonid Libkin: Algorithmic metatheorems for decidable LTL model checking over infinite systems CoRR abs/0910.4932: (2009) | |
129 | Leonid Libkin, Victor Vianu: Introduction to PODS 2007 special section. J. ACM 56(6): (2009) | |
2008 | ||
128 | Anthony Widjaja To, Leonid Libkin: Recurrent Reachability Analysis in Regular Model Checking. LPAR 2008: 198-213 | |
127 | Leonid Libkin, Cristina Sirangelo: Reasoning about XML with Temporal Logics and Automata. LPAR 2008: 97-112 | |
126 | Leonid Libkin, Cristina Sirangelo: Data exchange and schema mappings in open and closed worlds. PODS 2008: 139-148 | |
125 | Leonid Libkin: Introduction to the PODS 2007 special section. ACM Trans. Database Syst. 33(4): (2008) | |
124 | Marcelo Arenas, Pablo Barceló, Leonid Libkin: Game-based notions of locality over finite models. Ann. Pure Appl. Logic 152(1-3): 3-30 (2008) | |
123 | Rajeev Alur, Marcelo Arenas, Pablo Barceló, Kousha Etessami, Neil Immerman, Leonid Libkin: First-Order and Temporal Logics for Nested Words CoRR abs/0811.0537: (2008) | |
122 | Marcelo Arenas, Leonid Libkin: XML data exchange: Consistency and query answering. J. ACM 55(2): (2008) | |
121 | Rajeev Alur, Marcelo Arenas, Pablo Barceló, Kousha Etessami, Neil Immerman, Leonid Libkin: First-Order and Temporal Logics for Nested Words. Logical Methods in Computer Science 4(4): (2008) | |
120 | Marcelo Arenas, Wenfei Fan, Leonid Libkin: On the Complexity of Verifying Consistency of XML Specifications. SIAM J. Comput. 38(3): 841-880 (2008) | |
2007 | ||
119 | Leonid Libkin: Proceedings of the Twenty-Sixth ACM SIGACT-SIGMOD-SIGART Symposium on Principles of Database Systems, June 11-13, 2007, Beijing, China ACM 2007 | |
118 | Marcelo Arenas, Pablo Barceló, Leonid Libkin: Regular Languages of Nested Words: Fixed Points, Automata, and Synchronization. ICALP 2007: 888-900 | |
117 | Marcelo Arenas, Pablo Barceló, Leonid Libkin: Combining Temporal Logics for Querying XML Documents. ICDT 2007: 359-373 | |
116 | Rajeev Alur, Marcelo Arenas, Pablo Barceló, Kousha Etessami, Neil Immerman, Leonid Libkin: First-Order and Temporal Logics for Nested Words. LICS 2007: 151-160 | |
115 | Solmaz Kolahi, Leonid Libkin: XML design for relational storage. WWW 2007: 1083-1092 | |
114 | Leonid Libkin: Normalization Theory for XML. XSym 2007: 1-13 | |
113 | Michael Benedikt, Leonid Libkin, Frank Neven: Logical definability and query languages over ranked and unranked trees. ACM Trans. Comput. Log. 8(2): (2007) | |
112 | Thomas Eiter, Leonid Libkin: Preface. Theor. Comput. Sci. 371(3): 147 (2007) | |
2006 | ||
111 | Solmaz Kolahi, Leonid Libkin: On redundancy vs dependency preservation in normalization: an information-theoretic study of 3NF. PODS 2006: 114-123 | |
110 | Leonid Libkin: Data exchange and incomplete information. PODS 2006: 60-69 | |
109 | Thomas Eiter, Leonid Libkin: Introduction to special ICDT section. ACM Trans. Database Syst. 31(3): 769 (2006) | |
108 | Leonid Libkin: Logics for Unranked Trees: An Overview CoRR abs/cs/0606062: (2006) | |
107 | Leonid Libkin: Locality of Queries and Transformations. Electr. Notes Theor. Comput. Sci. 143: 115-127 (2006) | |
106 | Leonid Libkin: Logics for Unranked Trees: An Overview. Logical Methods in Computer Science 2(3): (2006) | |
2005 | ||
105 | Thomas Eiter, Leonid Libkin: Database Theory - ICDT 2005, 10th International Conference, Edinburgh, UK, January 5-7, 2005, Proceedings Springer 2005 | |
104 | Leonid Libkin: Logics for Unranked Trees: An Overview. ICALP 2005: 35-50 | |
103 | Marcelo Arenas, Wenfei Fan, Leonid Libkin: Consistency of XML Specifications. Inconsistency Tolerance 2005: 15-41 | |
102 | Pablo Barceló, Leonid Libkin: Temporal Logics over Unranked Trees. LICS 2005: 31-40 | |
101 | Marcelo Arenas, Leonid Libkin: XML data exchange: consistency and query answering. PODS 2005: 13-24 | |
100 | Marcelo Arenas, Leonid Libkin: An information-theoretic approach to normal forms for relational and XML data. J. ACM 52(2): 246-283 (2005) | |
2004 | ||
99 | Leonid Libkin: Elements of Finite Model Theory Springer 2004 | |
98 | Marcelo Arenas, Pablo Barceló, Leonid Libkin: Game-Based Notions of Locality Over Finite Models. CSL 2004: 175-189 | |
97 | Denilson Barbosa, Alberto O. Mendelzon, Leonid Libkin, Laurent Mignet, Marcelo Arenas: Efficient Incremental Validation of XML Documents. ICDE 2004: 671-682 | |
96 | Marcelo Arenas, Pablo Barceló, Ronald Fagin, Leonid Libkin: Locally Consistent Transformations and Query Answering in Data Exchange. PODS 2004: 229-240 | |
95 | Marcelo Arenas, Leonid Libkin: A normal form for XML documents. ACM Trans. Database Syst. 29: 195-232 (2004) | |
2003 | ||
94 | Leonid Libkin, Frank Neven: Logical Definability and Query Languages over Unranked Trees. LICS 2003: 178-187 | |
93 | Marcelo Arenas, Leonid Libkin: An information-theoretic approach to normal forms for relational and XML data. PODS 2003: 15-26 | |
92 | Leonid Libkin: Variable independence for first-order definable constraints. ACM Trans. Comput. Log. 4(4): 431-451 (2003) | |
91 | Guozhu Dong, Leonid Libkin, Limsoon Wong: Incremental recomputation in local languages. Inf. Comput. 181(2): 88-98 (2003) | |
90 | Leonid Libkin: A collapse result for constraint queries over structures of small degree. Inf. Process. Lett. 86(5): 277-281 (2003) | |
89 | Michael Benedikt, Leonid Libkin, Thomas Schwentick, Luc Segoufin: Definable relations and first-order query languages over strings. J. ACM 50(5): 694-751 (2003) | |
88 | Michael Benedikt, Martin Grohe, Leonid Libkin, Luc Segoufin: Reachability and connectivity queries in constraint databases. J. Comput. Syst. Sci. 66(1): 169-206 (2003) | |
87 | Leonid Libkin: Expressive power of SQL. Theor. Comput. Sci. 296(3): 379-404 (2003) | |
2002 | ||
86 | Marcelo Arenas, Wenfei Fan, Leonid Libkin: What's Hard about XML Schema Constraints? DEXA 2002: 269-278 | |
85 | Michael Benedikt, Leonid Libkin: Tree Extension Algebras: Logics, Automata, and Query Languages. LICS 2002: 203- | |
84 | Marcelo Arenas, Wenfei Fan, Leonid Libkin: On Verifying Consistency of XML Specifications. PODS 2002: 259-270 | |
83 | Marcelo Arenas, Leonid Libkin: A Normal Form for XML Documents. PODS 2002: 85-96 | |
82 | Martín Abadi, Leonid Libkin, Frank Pfenning: Editorial. ACM Trans. Comput. Log. 3(3): 335-335 (2002) | |
81 | Wenfei Fan, Leonid Libkin: On XML integrity constraints in the presence of DTDs. J. ACM 49(3): 368-406 (2002) | |
80 | Michael Benedikt, Leonid Libkin: Aggregate Operators in Constraint Query Languages. J. Comput. Syst. Sci. 64(3): 628-654 (2002) | |
79 | Leonid Libkin, Limsoon Wong: Lower bounds for invariant queries in logics with counting. Theor. Comput. Sci. 288(1): 153-180 (2002) | |
2001 | ||
78 | Leonid Libkin: Expressive Power of SQL. ICDT 2001: 1-21 | |
77 | Michael Benedikt, Leonid Libkin, Thomas Schwentick, Luc Segoufin: A Model-Theoretic Approach to Regular String Relations. LICS 2001: 431- | |
76 | Wenfei Fan, Leonid Libkin: On XML Integrity Constraints in the Presence of DTDs. PODS 2001 | |
75 | Michael Benedikt, Leonid Libkin, Thomas Schwentick, Luc Segoufin: String Operations in Query Languages. PODS 2001 | |
74 | Leonid Libkin: Logics capturing local properties. ACM Trans. Comput. Log. 2(1): 135-153 (2001) | |
73 | Stavros S. Cosmadakis, Gabriel M. Kuper, Leonid Libkin: On the orthographic dimension of definable sets. Inf. Process. Lett. 79(3): 141-145 (2001) | |
72 | Lauri Hella, Leonid Libkin, Juha Nurmonen, Limsoon Wong: Logics with aggregate operators. J. ACM 48(4): 880-907 (2001) | |
71 | Kenneth A. Ross, Stefano Ceri, Luis Gravano, Per-Åke Larson, Leonid Libkin, Tova Milo: Reminiscences on Influential Papers. SIGMOD Record 30(1): 55-57 (2001) | |
2000 | ||
70 | Gabriel M. Kuper, Leonid Libkin, Jan Paredaens: Constraint Databases Springer 2000 | |
69 | Gabriel M. Kuper, Leonid Libkin, Jan Paredaens: Introduction. Constraint Databases 2000: 1-16 | |
68 | Michael Benedikt, Leonid Libkin: Query Safety with Constraints. Constraint Databases 2000: 109-129 | |
67 | Jan Chomicki, Leonid Libkin: Aggregate Languages for Constraint Databases. Constraint Databases 2000: 131-154 | |
66 | Michael Benedikt, Leonid Libkin: Expressive Power: The Finite Case. Constraint Databases 2000: 55-87 | |
65 | Leonid Libkin: Variable Independence, Quantifier Elimination, and Constraint Representations. ICALP 2000: 260-271 | |
64 | Michael Benedikt, Martin Grohe, Leonid Libkin, Luc Segoufin: Reachability and Connectivity Queries in Constraint Databases. PODS 2000: 104-115 | |
63 | Leonid Libkin: Logics Capturing Local Properties. STACS 2000: 217-229 | |
62 | Leonid Libkin: Logics with counting and local properties. ACM Trans. Comput. Log. 1(1): 33-59 (2000) | |
61 | Michael Benedikt, Leonid Libkin: Relational queries over interpreted structures. J. ACM 47(4): 644-680 (2000) | |
60 | Michael Benedikt, Leonid Libkin: Safe Constraint Queries. SIAM J. Comput. 29(5): 1652-1682 (2000) | |
59 | Guozhu Dong, Leonid Libkin, Limsoon Wong: Local properties of query languages. Theor. Comput. Sci. 239(2): 277-308 (2000) | |
1999 | ||
58 | Leonid Libkin, Limsoon Wong: On the Power of Incremental Evaluation in SQL-Like Languages. DBPL 1999: 17-30 | |
57 | Leonid Libkin: Logics with Counting, Auxiliary Relations, and Lower Bounds for Invariant Queries. LICS 1999: 316-325 | |
56 | Lauri Hella, Leonid Libkin, Juha Nurmonen, Limsoon Wong: Logics with Aggregate Operators. LICS 1999: 35-44 | |
55 | Michael Benedikt, Leonid Libkin: Exact and Approximate Aggregation in Constraint Query. PODS 1999: 102-113 | |
54 | Leonid Libkin: What you can and cannot say in SQL or proving folk theorems in database theory. Proc. 15èmes Journées Bases de Données Avancées, BDA 1999: 425 | |
53 | Lauri Hella, Leonid Libkin, Juha Nurmonen: Notions of Locality and Their Logical Characterizations over Finite Models. J. Symb. Log. 64(4): 1751-1773 (1999) | |
52 | Leonid Libkin: Query languages with arithmetic and constraint databases. SIGACT News 30(4): 41-50 (1999) | |
51 | Leonid Libkin: Some Remarks on Variable Independence, Closure, and Orthographic Dimension in Constraint Databases. SIGMOD Record 28(4): 24-28 (1999) | |
50 | Leonid Libkin: Database Principles Column - Introduction. SIGMOD Record 28(4): 29 (1999) | |
1998 | ||
49 | Leonid Libkin, Bernhard Thalheim: Semantics in Databases, Selected Papers from a Workshop, Prague, Czech Republic, 1995 Springer 1998 | |
48 | Leonid Libkin: On Counting Logics and Local Properties. LICS 1998: 501-512 | |
47 | Michael Benedikt, Leonid Libkin: Safe Constraint Queries. PODS 1998: 99-108 | |
46 | Leonid Libkin, Limsoon Wong: Unary Quantifiers, Transitive Closure, and Relations of Large Degree. STACS 1998: 183-193 | |
45 | Michael Benedikt, Timothy Griffin, Leonid Libkin: Verifiable Properties of Database Transactions. Inf. Comput. 147(1): 57-88 (1998) | |
44 | Michael Benedikt, Guozhu Dong, Leonid Libkin, Limsoon Wong: Relational Expressive Power of Constraint Query Languages. J. ACM 45(1): 1-34 (1998) | |
43 | Leonid Libkin: Models of Approximation in Databases. Theor. Comput. Sci. 190(2): 167-210 (1998) | |
1997 | ||
42 | Leonid Libkin, Limsoon Wong: Incremental Recomputation of Recursive Queries with Nested Sets and Aggregate Functions. DBPL 1997: 222-238 | |
41 | Leonid Libkin, Limsoon Wong: On the Power of Aggregation in Relational Query Languages. DBPL 1997: 260-280 | |
40 | Leonid Libkin, Juha Nurmonen: Counting and Locality over Finite Structures: A Survey. ESSLLI 1997: 18-50 | |
39 | Guozhu Dong, Leonid Libkin, Limsoon Wong: Local Properties of Query Languages. ICDT 1997: 140-154 | |
38 | Latha S. Colby, Leonid Libkin: Tractable Iteration Mechanisms for Bag Languages. ICDT 1997: 461-475 | |
37 | Leonid Libkin: On the Forms of Locality over Finite Models. LICS 1997: 204-215 | |
36 | Michael Benedikt, Leonid Libkin: Languages for Relational Databases over Interpreted Structures. PODS 1997: 87-98 | |
35 | Timothy Griffin, Leonid Libkin, Howard Trickey: An Improved Algorithm for the Incremental Recomputation of Active Relational Expressions. IEEE Trans. Knowl. Data Eng. 9(3): 508-511 (1997) | |
34 | Leonid Libkin, Limsoon Wong: Query Languages for Bags and Aggregate Functions. J. Comput. Syst. Sci. 55(2): 241-272 (1997) | |
1996 | ||
33 | Michael Benedikt, Leonid Libkin: On the Structure of Queries in Constraint Query Languages. LICS 1996: 25-34 | |
32 | Michael Benedikt, Timothy Griffin, Leonid Libkin: Verifiable Properties of Database Transactions. PODS 1996: 117-127 | |
31 | Michael Benedikt, Guozhu Dong, Leonid Libkin, Limsoon Wong: Relational Expressive Power of Constraint Query Languages. PODS 1996: 5-16 | |
30 | Leonid Libkin, Rona Machlin, Limsoon Wong: A Query Language for Multidimensional Arrays: Design, Implementation, and Optimization Techniques. SIGMOD Conference 1996: 228-239 | |
29 | Latha S. Colby, Timothy Griffin, Leonid Libkin, Inderpal Singh Mumick, Howard Trickey: Algorithms for Deferred View Maintenance. SIGMOD Conference 1996: 469-480 | |
28 | Leonid Libkin, Limsoon Wong: Semantic Representations and Query Labguages for Or-Sets. J. Comput. Syst. Sci. 52(1): 125-142 (1996) | |
27 | Stéphane Grumbach, Leonid Libkin, Tova Milo, Limsoon Wong: Query languages for bags: expressive power and complexity. SIGACT News 27(2): 30-44 (1996) | |
1995 | ||
26 | Leonid Libkin: Query Language Primitives for Programming with Incomplete Databases. DBPL 1995: 6 | |
25 | Guozhu Dong, Leonid Libkin, Limsoon Wong: On Impossibility of Decremental Recomputation of Recursive Queries in Relational Calculus and SQL. DBPL 1995: 7 | |
24 | Leonid Libkin: Approximation in Databases. ICDT 1995: 411-424 | |
23 | Leonid Libkin: Normalizing Incomplete Databases. PODS 1995: 219-230 | |
22 | Timothy Griffin, Leonid Libkin: Incremental Maintenance of Views with Duplicates. SIGMOD Conference 1995: 328-339 | |
21 | Leonid Libkin: A Semantics-based Approach to Design of Query Languages for Partial Information. Semantics in Databases 1995: 170-208 | |
20 | Elsa L. Gunter, Leonid Libkin: Interfacing HOL90 with a Functional Database Query Language. TPHOLs 1995: 170-185 | |
19 | Leonid Libkin, Vladimir Gurvich: Trees as semilattices. Discrete Mathematics 145(1-3): 321-327 (1995) | |
18 | Leonid Libkin, Limsoon Wong: On Representation and Querying Incomplete Information in Databases with Bags. Inf. Process. Lett. 56(4): 209-214 (1995) | |
1994 | ||
17 | Elsa L. Gunter, Leonid Libkin: OR-SML: A Functional Database Programming Language for Disjunctive Information and Its Applications. DEXA 1994: 641-650 | |
16 | Leonid Libkin, Limsoon Wong: New Techniques for Studying Set Languages, Bag Languages and Aggregate Functions. PODS 1994: 155-166 | |
15 | Leonid Libkin, Limsoon Wong: Conservativity of Nested Relational Calculi with Internal Generic Functions. Inf. Process. Lett. 49(6): 273-280 (1994) | |
14 | Peter Buneman, Leonid Libkin, Dan Suciu, Val Tannen, Limsoon Wong: Comprehension Syntax. SIGMOD Record 23(1): 87-96 (1994) | |
1993 | ||
13 | Leonid Libkin, Limsoon Wong: Aggregate Functions, Conservative Extensions, and Linear Orders. DBPL 1993: 282-294 | |
12 | Leonid Libkin, Limsoon Wong: Some Properties of Query Languages for Bags. DBPL 1993: 97-114 | |
11 | Leonid Libkin, Limsoon Wong: Semantic Representations and Query Languages for Or-sets. PODS 1993: 37-48 | |
10 | Leonid Libkin: Direct product decompositions of lattices, closures and relation schemes. Discrete Mathematics 112(1-3): 119-138 (1993) | |
1992 | ||
9 | János Demetrovics, G. Hencsey, Leonid Libkin, Ilya B. Muchnik: On the Interaction Between Closure Operations and Choice Functions with Applications to Relational Database. Acta Cybern. 10(3): 129-140 (1992) | |
8 | János Demetrovics, G. Hencsey, Leonid Libkin, Ilya B. Muchnik: Normal Form Relation Schemes: A New Characterization. Acta Cybern. 10(3): 141-164 (1992) | |
7 | Leonid Libkin: An elementary proof that upper and lower powerdomain constructions commute. Bulletin of the EATCS 48: 175-177 (1992) | |
6 | János Demetrovics, Leonid Libkin, Ilya B. Muchnik: Functional Dependencies in Relational Databases: A Lattice Point of View. Discrete Applied Mathematics 40(2): 155-185 (1992) | |
1991 | ||
5 | Leonid Libkin: A Relational Algebra for Complex Objects Based on Partial Information. MFDBS 1991: 29-43 | |
4 | Achim Jung, Leonid Libkin, Hermann Puhlmann: Decomposition of Domains. MFPS 1991: 235-258 | |
3 | Joachim Biskup, János Demetrovics, Leonid Libkin, Ilya B. Muchnik: On Relational Database Schemes Having Unique Minimal Key. Elektronische Informationsverarbeitung und Kybernetik 27(4): 217-225 (1991) | |
1990 | ||
2 | Georg Gottlob, Leonid Libkin: Investigation on Armstrong relations, dependency inference, and excluded functional dependencies. Acta Cybern. 9(4): 385-402 (1990) | |
1989 | ||
1 | János Demetrovics, Leonid Libkin, Ilya B. Muchnik: Functional Dependencies and the Semilattice of Closed Classes. MFDBS 1989: 136-147 |