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» Deriving predicate statistics in datalog
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PPDP
2010
Springer
13 years 3 months ago
Deriving predicate statistics in datalog
Database query optimizers rely on data statistics in selecting query execution plans. Similar query optimization techniques are desirable for deductive databases and, to make this...
Senlin Liang, Michael Kifer
VLDB
2007
ACM
153views Database» more  VLDB 2007»
14 years 5 months ago
Declarative Information Extraction Using Datalog with Embedded Extraction Predicates
In this paper we argue that developing information extraction (IE) programs using Datalog with embedded procedural extraction predicates is a good way to proceed. First, compared ...
Warren Shen, AnHai Doan, Jeffrey F. Naughton, Ragh...
SEMWEB
2009
Springer
13 years 11 months ago
Decidable Order-Sorted Logic Programming for Ontologies and Rules with Argument Restructuring
Abstract. This paper presents a decidable fragment for combining ontologies and rules in order-sorted logic programming. We describe ordersorted logic programming with sort, predic...
Ken Kaneiwa, Philip H. P. Nguyen
VLDB
1987
ACM
104views Database» more  VLDB 1987»
13 years 8 months ago
Magic Functions: A Technique to Optimize Extended Datalog Recursive Programs
Severalmethodshavebeenproposedto compile recursive Datalog programs. The most well-known perform a rewriting of rules using MAGIC or PROBLEM predicates in order to push selections...
Georges Gardarin
ILP
2005
Springer
13 years 10 months ago
Generalization Behaviour of Alkemic Decision Trees
Abstract. This paper is concerned with generalization issues for a decision tree learner for structured data called Alkemy. Motivated by error bounds established in statistical lea...
Kee Siong Ng