Sciweavers

115 search results - page 20 / 23
» Predicate Migration: Optimizing Queries with Expensive Predi...
Sort
View
SIGMOD
2007
ACM
136views Database» more  SIGMOD 2007»
14 years 7 months ago
Progressive optimization in a shared-nothing parallel database
Commercial enterprise data warehouses are typically implemented on parallel databases due to the inherent scalability and performance limitation of a serial architecture. Queries ...
Wook-Shin Han, Jack Ng, Volker Markl, Holger Kache...
VLDB
1992
ACM
116views Database» more  VLDB 1992»
13 years 11 months ago
Supporting Lists in a Data Model (A Timely Approach)
This paper considers the problem of adding list as a type constructor to an object-oriented data model. In particular, we are concerned with how lists in a database can be constru...
Joel E. Richardson
DASFAA
2006
IEEE
174views Database» more  DASFAA 2006»
13 years 11 months ago
Communication-Efficient Implementation of Range-Joins in Sensor Networks
Sensor networks are multi-hop wireless networks of resource constrained sensor nodes used to realize high-level collaborative sensing tasks. To query and access data generated and ...
Aditi Pandit, Himanshu Gupta
PPDP
2010
Springer
13 years 5 months ago
Precise complexity analysis for efficient datalog queries
Given a set of Datalog rules, facts, and a query, answers to the query can be inferred bottom-up starting with the facts or top-down starting with the query. For efficiently answe...
K. Tuncay Tekle, Yanhong A. Liu
ICDE
2005
IEEE
120views Database» more  ICDE 2005»
14 years 8 months ago
Progressive Distributed Top k Retrieval in Peer-to-Peer Networks
Query processing in traditional information management systems has moved from an exact match model to more flexible paradigms allowing cooperative retrieval by aggregating the dat...
Wolf-Tilo Balke, Wolfgang Nejdl, Wolf Siberski, Uw...