Theoretical Computer Science
Proc. of the first international conference on Rewriting techniques and applications
Termination of rewriting systems by polynomial interpretations and its implementation
Science of Computer Programming
Introduction: text power and intelligent systems
Text-based intelligent systems
Text representation for intelligent text retrieval: a classification-oriented view
Text-based intelligent systems
Direction-based text interpretation as an information access refinement
Text-based intelligent systems
SIGIR '93 Proceedings of the 16th annual international ACM SIGIR conference on Research and development in information retrieval
Termination of term rewriting using dependency pairs
Theoretical Computer Science - Trees in algebra and programming
Automata theory for XML researchers
ACM SIGMOD Record
Context-Sensitive Computations in Confluent Programs
PLILP '96 Proceedings of the 8th International Symposium on Programming Languages: Implementations, Logics, and Programs
Orienting rewrite rules with the Knuth--Bendix order
Information and Computation - RTA 2001
Avatar semantic search: a database approach to information retrieval
Proceedings of the 2006 ACM SIGMOD international conference on Management of data
Navigating the intranet with high precision
Proceedings of the 16th international conference on World Wide Web
Closure of Hedge-Automata Languages by Hedge Rewriting
RTA '08 Proceedings of the 19th international conference on Rewriting Techniques and Applications
SystemT: a system for declarative information extraction
ACM SIGMOD Record
An Algebraic Approach to Rule-Based Information Extraction
ICDE '08 Proceedings of the 2008 IEEE 24th International Conference on Data Engineering
Understanding queries in a search database system
Proceedings of the twenty-ninth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
A proof of weak termination providing the right way to terminate
ICTAC'04 Proceedings of the First international conference on Theoretical Aspects of Computing
Automatic suggestion of query-rewrite rules for enterprise search
SIGIR '12 Proceedings of the 35th international ACM SIGIR conference on Research and development in information retrieval
Gumshoe quality toolkit: administering programmable search
Proceedings of the 21st ACM international conference on Information and knowledge management
Efficient parsing-based search over structured data
Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
Next generation data analytics at IBM research
Proceedings of the VLDB Endowment
Hi-index | 0.00 |
The results of a search engine can be improved by consulting auxiliary data. In a search database system, the association between the user query and the auxiliary data is driven by rewrite rules that augment the user query with a set of alternative queries. This paper develops a framework that formalizes the notion of a rewrite program, which is essentially a collection of hedge-rewriting rules. When applied to a search query, the rewrite program produces a set of alternative queries that constitutes a least fixpoint (lfp). The main focus of the paper is on the lfp-convergence of a rewrite program, where a rewrite program is lfp-convergent if the least fixpoint of every search query is finite. Determining whether a given rewrite program is lfp-convergent is undecidable; to accommodate that, the paper proposes a safety condition, and shows that safety guarantees lfp-convergence, and that safety can be decided in polynomial time. The effectiveness of the safety condition in capturing lfp-convergence is illustrated by an application to a rewrite program in an implemented system that is intended for widespread use.