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AAAI
2006
15 years 5 months ago
Characterizing Data Complexity for Conjunctive Query Answering in Expressive Description Logics
Description Logics (DLs) are the formal foundations of the standard web ontology languages OWL-DL and OWL-Lite. In the Semantic Web and other domains, ontologies are increasingly ...
Magdalena Ortiz, Diego Calvanese, Thomas Eiter
AAAI
2000
15 years 5 months ago
Multivariate Clustering by Dynamics
We present a Bayesian clustering algorithm for multivariate time series. A clustering is regarded as a probabilistic model in which the unknown auto-correlation structure of a tim...
Marco Ramoni, Paola Sebastiani, Paul R. Cohen
NTMS
2008
IEEE
15 years 10 months ago
An Autonomous Data Gathering Scheme Adaptive to Sensing Requirements for Industrial Environment Monitoring
—In wireless sensor networks (WSNs), the frequency of sensing and data gathering depends on application requirements and surrounding conditions. In this paper, we propose a data ...
Yoshiaki Taniguchi, Naoki Wakamiya, Masayuki Murat...
FGCN
2007
IEEE
119views Communications» more  FGCN 2007»
15 years 10 months ago
A Novel Adaptive Load Shedding Scheme for Data Stream Processing
In this paper, we present a novel feedback control-based load shedding scheme for data stream processing. Firstly we apply system identification to establish a dynamic model to de...
Yunyi Zhang, Chongzheng Huang, Deyun Zhang
WWW
2003
ACM
16 years 4 months ago
The chatty web: emergent semantics through gossiping
This paper describes a novel approach for obtaining semantic interoperability among data sources in a bottom-up, semiautomatic manner without relying on pre-existing, global seman...
Karl Aberer, Manfred Hauswirth, Philippe Cudr&eacu...