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» LFG Semantics via Constraints
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SUM
2007
Springer
15 years 3 months ago
The Consistency Extractor System: Querying Inconsistent Databases Using Answer Set Programs
Abstract. We present the Consistency Extractor System (ConsEx) that uses answer set programming to compute consistent answers to first-order queries posed to relational databases ...
Mónica Caniupán Marileo, Leopoldo E....
ATVA
2006
Springer
160views Hardware» more  ATVA 2006»
15 years 1 months ago
Monotonic Set-Extended Prefix Rewriting and Verification of Recursive Ping-Pong Protocols
Ping-pong protocols with recursive definitions of agents, but without any active intruder, are a Turing powerful model. We show that under the environment sensitive semantics (i.e....
Giorgio Delzanno, Javier Esparza, Jirí Srba
RTAS
2007
IEEE
15 years 3 months ago
A Programming Model for Time-Synchronized Distributed Real-Time Systems
Discrete-event (DE) models are formal system specifications that have analyzable deterministic behaviors. Using a global, consistent notion of time, DE components communicate via...
Yang Zhao, Jie Liu, Edward A. Lee
VLDB
2004
ACM
138views Database» more  VLDB 2004»
15 years 2 months ago
ObjectRank: Authority-Based Keyword Search in Databases
The ObjectRank system applies authority-based ranking to keyword search in databases modeled as labeled graphs. Conceptually, authority originates at the nodes (objects) containin...
Andrey Balmin, Vagelis Hristidis, Yannis Papakonst...
ECSQARU
2009
Springer
15 years 4 months ago
Realizing Default Logic over Description Logic Knowledge Bases
Abstract. We consider a realization of Reiter-style default logic on top of description logic knowledge bases (DL-KBs). To this end, we present elegant transformations from default...
Minh Dao-Tran, Thomas Eiter, Thomas Krennwallner