265 results on '"Leonid Libkin"'
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2. GQL and SQL/PGQ: Theoretical Models and Expressive Power.
3. The Linked Data Benchmark Council (LDBC): Driving Competition and Collaboration in the Graph Data Management Space.
4. SQL Nulls and Two-Valued Logic.
5. GPC: A Pattern Calculus for Property Graphs.
6. Querying Incomplete Numerical Data: Between Certain and Possibile Answers.
7. A Researcher's Digest of GQL (Invited Talk).
8. PG-Schema: Schemas for Property Graphs.
9. Graph Pattern Matching in GQL and SQL/PGQ.
10. Certain Answers of Extensions of Conjunctive Queries by Datalog and First-Order Rewriting.
11. Troubles with Nulls, Views from the Users.
12. Querying Incomplete Data : Complexity and Tractability via Datalog and First-Order Rewritings.
13. The Linked Data Benchmark Council (LDBC): Driving competition and collaboration in the graph data management space.
14. PG-Keys: Keys for Property Graphs.
15. Queries with Arithmetic on Incomplete Databases.
16. Coping with Incomplete Data: Recent Advances.
17. Knowledge-Preserving Certain Answers for SQL-like Queries.
18. Reasoning about Measures of Unmeasurable Sets.
19. Incorporating Data Context to Cost-Effectively Automate End-to-End Data Wrangling.
20. Fragments of Bag Relational Algebra: Expressiveness and Certain Answers.
21. Measuring the Likelihood of Numerical Constraints.
22. Do We Need Many-valued Logics for Incomplete Information?.
23. GPC: A Pattern Calculus for Property Graphs.
24. Querying Incomplete Numerical Data: Between Certain and Possible Answers.
25. PG-Schema: Schemas for Property Graphs.
26. Technical Perspective: Query Answers - Fewer is Faster.
27. Certain Answers Meet Zero-One Laws.
28. An Operational Approach to Consistent Query Answering.
29. Approximating Certainty in Querying Data and Metadata.
30. Propositional and Predicate Logics of Incomplete Information.
31. Explainable Certain Answers.
32. Cypher: An Evolving Query Language for Property Graphs.
33. On the Codd semantics of SQL nulls.
34. Updating Graph Databases with Cypher.
35. Graph Pattern Matching in GQL and SQL/PGQ.
36. Schema Mappings for Data Graphs.
37. On Querying Incomplete Information in Databases under Bag Semantics.
38. Data context informed data wrangling.
39. The VADA Architecture for Cost-Effective Data Wrangling.
40. Handling SQL Nulls with Two-Valued Logic.
41. Fragments of bag relational algebra: Expressiveness and certain answers.
42. Propositional and predicate logics of incomplete information.
43. TriAL: A Navigational Algebra for RDF Triplestores.
44. Research Directions for Principles of Data Management (Dagstuhl Perspectives Workshop 16151).
45. Data Wrangling for Big Data: Challenges and Opportunities.
46. Making SQL Queries Correct on Incomplete Databases: A Feasibility Study.
47. Approximations and Refinements of Certain Answers via Many-Valued Logics.
48. Negative Knowledge for Certain Query Answers.
49. How Standard is the SQL Standard?
50. An Operational Approach to Consistent Query Answering.
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