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130 results on '"Leonid Libkin"'

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1. Order-Invariant Types and Their Applications

2. Graph Logics with Rational Relations

3. First-Order and Temporal Logics for Nested Words

4. Logics for Unranked Trees: An Overview

5. A Researcher’s Digest of GQL (Invited Talk)

6. Certain Answers of Extensions of Conjunctive Queries by Datalog and First-Order Rewriting

7. Incorporating Data Context to Cost-Effectively Automate End-to-End Data Wrangling

8. Graph Pattern Matching in GQL and SQL/PGQ

9. Propositional and predicate logics of incomplete information

10. Property graphs and paths in GQL: Mathematical definitions

11. Updating graph databases with Cypher

12. PG-Keys: Keys for Property Graphs

13. Knowledge-Preserving Certain Answers for SQL-like Queries

14. Coping with Incomplete Data: Recent Advances

15. Queries with Arithmetic on Incomplete Databases

16. Reasoning about measures of unmeasurable sets

17. Correctness of SQL Queries on Databases with Nulls

18. Measuring the Likelihood of Numerical Constraints

19. Do We Need Many-valued Logics for Incomplete Information?

20. Fragments of Bag Relational Algebra: Expressiveness and Certain Answers

21. Fragments of Bag Relational Algebra: Expressiveness and Certain Answers

22. Cypher

23. Certain Answers Meet Zero-One Laws

24. TriAL: A navigational algebra for RDF triplestores

25. Data Context Informed Data Wrangling

26. An Operational Approach to Consistent Query Answering

27. Research Directions for Principles of Data Management (Dagstuhl Perspectives Workshop 16151)

28. On the Codd Semantics of SQL Nulls

29. The VADA Architecture for Cost-Effective Data Wrangling

30. Schema Mappings for Data Graphs

31. Making SQL Queries Correct on Incomplete Databases: A Feasibility Study

33. Querying Graphs with Data

34. Order-Invariant Types and Their Applications

35. Negative Knowledge for Certain Query Answers

37. Closed world data exchange

38. Disjoint pattern matching and implication in strings

39. Game-based notions of locality over finite models

40. Path Logics for Querying Graphs: Combining Expressiveness and Efficiency

41. Regular expressions for data words

42. Incremental recomputation in local languages

43. Expressive power of SQL

44. Aggregate Operators in Constraint Query Languages

45. Certain Answers over Incomplete XML Documents: Extending Tractability Boundary

46. Pattern logics and auxiliary relations

47. Incomplete data: what went wrong, and how to fix it

48. Synchronizing Relations on Words

49. Querying regular graph patterns

50. XML Schema Mappings: Data Exchange and Metadata Management

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