Sciweavers

Share
VLDB
1991
ACM
141views Database» more  VLDB 1991»
9 years 6 months ago
Efficiency of Nested Relational Document Database Systems
Systems designed for efficient retrieval of conventional data can be very inefficient at retrieving documents. Documents have more complex structure than conventional data, and th...
Justin Zobel, James A. Thom, Ron Sacks-Davis
VLDB
1991
ACM
113views Database» more  VLDB 1991»
9 years 6 months ago
Implementing Set-Oriented Production Rules as an Extension to Starburst
This paper describes the implementation of a set-oriented database production rule language proposed in earlier papers. Our implementation uses the extensibility features of the St...
Jennifer Widom, Roberta Cochrane, Bruce G. Lindsay
VLDB
1991
ACM
145views Database» more  VLDB 1991»
9 years 6 months ago
A Taxonomy and Performance Model of Data Skew Effects in Parallel Joins
Recent work on parallel joins and data skew has concentrated on algorithm design without considering the causes and chara.cteristics of data. skew itself. Existming ana.lyt,ic mod...
Christopher B. Walton, Alfred G. Dale, Roy M. Jene...
VLDB
1991
ACM
165views Database» more  VLDB 1991»
9 years 6 months ago
Aggregation and Relevance in Deductive Databases
In this paper we present a technique to optimize queries on deductive databases that use aggregate operations such as min, max, and “largest Ic values.” Our approach is based ...
S. Sudarshan, Raghu Ramakrishnan
VLDB
1991
ACM
157views Database» more  VLDB 1991»
9 years 6 months ago
Integrating Implicit Answers with Object-Oriented Queries
Queries in object-oriented datab;Lqcs are formulated against a class and retrieve instnnccls of the class sat,isfying a certain predicate on the att,riblltes of the class. The pre...
Hava T. Siegelmann, B. R. Badrinath
VLDB
1991
ACM
104views Database» more  VLDB 1991»
9 years 6 months ago
A Metadata Approach to Resolving Semantic Conflicts
In this paper we describe a rule-based approach to semantic specification that can be used to establish semantic agreement between a source and receiver. Query processing techniqu...
Michael Siegel, Stuart E. Madnick
VLDB
1991
ACM
143views Database» more  VLDB 1991»
9 years 6 months ago
Alert: An Architecture for Transforming a Passive DBMS into an Active DBMS
Ulf Schreier, Hamid Pirahesh, Rakesh Agrawal, C. M...
VLDB
1991
ACM
135views Database» more  VLDB 1991»
9 years 6 months ago
A Framework for Automating Physical Database Design
We propose a two-pha.se algorithm for physical database design. In phase one the algorithm, for each logical query, losesrules to determine characteristics of a physical design (s...
Steve Rozen, Dennis Shasha
VLDB
1991
ACM
128views Database» more  VLDB 1991»
9 years 6 months ago
A Functional Programming Approach to Deductive Databases
We introduce a persistentfunctional languagecalled PFL which adapts functional programming to the area of deductive databases,much as logic-based deductive databaselanguagesadapt ...
Alexandra Poulovassilis, Carol Small
VLDB
1991
ACM
132views Database» more  VLDB 1991»
9 years 6 months ago
Fido: A Cache That Learns to Fetch
This paper describesFido, a predictive cache [Palmer 19901that prefetchesby employing an associativememoryto recognizeaccesspatterns within a context over time. Repeatedtraining a...
Mark Palmer, Stanley B. Zdonik
books