Reasoning about Strings in Databases
Summary: Alignment logic: a modal extension of relational calculus modeling relations of Sigma*-strings as 2D alignments with a 'slide' modality and multitape two‑way automata for string matching. Extends relational algebra with automata-based selection, identifies a decidable boundedness fragment, and shows fragments capture regular languages, PH, and full Turing power. (summarized by gpt-5-mini on Feb 09 2026)
Incoming Non-self Citations Over Time
Authors
- 1. REDACTED (withheld per image identification policy) (University of Helsinki)
- 2. REDACTED (withheld per image identification policy) (University of Helsinki)
- 3. REDACTED (withheld per image identification policy) (University of Helsinki)
BibTeX Citation
@inproceedings{policy_pods94,
address = {New York, NY, USA},
series = {{PODS} '94},
title = {{Reasoning about Strings in Databases}},
url = {https://dl.acm.org/doi/10.1145/182591.182656},
doi = {10.1145/182591.182656},
booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
publisher = {Association for Computing Machinery},
author = {policy), REDACTED (withheld per image identification and policy), REDACTED (withheld per image identification and policy), REDACTED (withheld per image identification},
year = {1994}
}
Incoming Citations (Sorted by Pagerank)
Showing 2 of 2 citing papers.
| Rank | Citing Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 4,166 | Similarity-Based Queries | 1995 | PODS | 6.7666324e-05 |
| 6,938 | Sequences, Datalog and Transducers | 1995 | PODS | 5.639474e-05 |
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Outgoing Citations (Sorted by Pagerank)
Showing 3 of 3 cited papers.
Citations counted here include only citations to other VLDB/SIGMOD/CIDR/PODS papers in this database.
| Rank | Cited Paper | Year | Venue | Pagerank |
|---|---|---|---|---|
| 1,534 | Safety of Recursive Horn Clauses With Infinite Relations | 1987 | PODS | 0.00010331296 |
| 2,427 | Pattern Matching by Rs-Operations: Towards a Unified Approach to Querying Sequenced Data (Extended Abstract) | 1992 | PODS | 8.4823408e-05 |
| 4,678 | Supporting Lists in a Data Model (A Timely Approach) | 1992 | VLDB | 6.4731003e-05 |
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Semantically Similar Papers
| # | Overall Rank | Paper | Year | Venue |
|---|---|---|---|---|
| 1 | 4,166 | Similarity-Based Queries | 1995 | PODS |
| 2 | 7,337 | Typed Query Languages for Databases Containing Queries | 1998 | PODS |
| 3 | 1,908 | Automata Theory for Database Theoreticians | 1989 | PODS |
| 4 | 3,854 | A Modal System of Algebras for Database Specification and Query/Update Language Support | 1983 | VLDB |
| 5 | 2,150 | Theory of Database Queries (Extended Abstract) | 1988 | PODS |
| 6 | 559 | A New Approach to Database Logic | 1984 | PODS |
| 7 | 1,919 | The Expressiveness of a Family of Finite Set Languages | 1991 | PODS |
| 8 | 8,051 | IDLOG: Extending the Expressive Power of Deductive Database Languages | 1990 | SIGMOD |
| 9 | 4,426 | Languages for Relational Databases over Interpreted Structures | 1997 | PODS |
| 10 | 13,147 | String Operations in Query Languages | 2001 | PODS |