DEXA
2010
Springer
13 years 4 months ago
2010
Springer
We consider the containment problem for conjunctive queries with atomic negation. Firstly, we refine an existing algorithm based on homomorphism checks, which itself improves other...
DEXA
2010
Springer
13 years 4 months ago
2010
Springer
Given a large collection of objects, finding all pairs of similar objects, namely similarity join, is widely used to solve various problems in many application domains.Computation ...
DEXA
2010
Springer
13 years 4 months ago
2010
Springer
Given a spatio-temporal network (ST network) whose edge properties vary with time, a time-sub-interval minimum spanning tree (TSMST) is a collection of distinct minimum spanning t...
DEXA
2010
Springer
13 years 4 months ago
2010
Springer
There has been a great deal of interest in recent years on ranking query results in relational databases. This paper presents a novel method to rank objects (e.g., tuples) by explo...
DEXA
2010
Springer
13 years 5 months ago
2010
Springer
Mechanical properties are the attributes that measure the faculty of a metal to withstand several loads and tensions. Specifically, ultimate tensile strength is the force a materia...
DEXA
2010
Springer
13 years 5 months ago
2010
Springer
Data stream is a newly emerging data model for applications like environment monitoring, Web click stream, network traffic monitoring, etc. It consists of an infinite sequence of d...
DEXA
2010
Springer
13 years 5 months ago
2010
Springer
The class of k Nearest Neighbor (kNN) queries in spatial networks has been widely studied in the literature. All existing approaches for kNN search in spatial networks assume that ...
DEXA
2010
Springer
13 years 5 months ago
2010
Springer
With the development of more expressive description logics (DLs) for the Web Ontology Language OWL the question arises how we can properly deal with the high computational complexi...
DEXA
2010
Springer
13 years 5 months ago
2010
Springer
Abstract. The problems of finding alternative clusterings and avoiding bias have gained popularity over the last years. In this paper we put the focus on the quality of these alter...
DEXA
2010
Springer
13 years 5 months ago
2010
Springer
Significant research efforts have recently been dedicated to modeling and querying uncertain data. In this paper, we focus on skyline analysis of uncertain data, modeled as uncert...