ICDE
2012
IEEE
12 years 2 months ago
2012
IEEE
Abstract—After decades of effort working on database performance, the quality and the usability of database systems have received more attention in recent years. In particular, t...
EDBT
2009
ACM
13 years 10 months ago
2009
ACM
Stream applications gained significant popularity over the last years that lead to the development of specialized stream engines. These systems are designed from scratch with a di...
ICDE
2010
IEEE
13 years 10 months ago
2010
IEEE
In this paper, we propose the Hybrid-Layer Index (simply, the HL-index) that is designed to answer top-k queries efficiently when the queries are expressed on any arbitrary subset ...
TKDE
2010
13 years 10 months ago
2010
— The data management community has recently begun to consider declarative network routing and distributed acquisition: e.g., sensor networks that execute queries about contiguou...
SIGMOD
2010
ACM
13 years 10 months ago
2010
ACM
One useful feature that is missing from today’s database systems is an explain capability that enables users to seek clarifications on unexpected query results. There are two t...
OTM
2010
Springer
13 years 11 months ago
2010
Springer
In tuple space approaches to context-aware mobile systems, the notion of context is defined by the presence or absence of certain tuples in the tuple space. Existing approaches de...
SAC
2008
ACM
13 years 12 months ago
2008
ACM
Skyline queries are important due to their usefulness in many application domains. However, by increasing the number of attributes, the probability that a tuple dominates another ...
KAIS
2007
14 years 9 days ago
2007
We present an adaptive load shedding approach for windowed stream joins. In contrast to the conventional approach of dropping tuples from the input streams, we explore the concept ...
ICDE
2010
IEEE
14 years 19 days ago
2010
IEEE
Abstract—In the context of service composition and orchestration, service invocation is typically scheduled according to execution plans, whose topology establishes whether diffe...
IJCAI
1989
14 years 1 months ago
1989
This paper considers the composition of tuples from two relations in order to derive additional tuples of one of these relations. Our purpose is to determine when the composition i...