Skyline computation is a hot topic in database community due to its promising application in multi-criteria decision making. In sensor network application scenarios, skyline is still useful and important in environmen...
ISBN:
(纸本)9783540698296
Skyline computation is a hot topic in database community due to its promising application in multi-criteria decision making. In sensor network application scenarios, skyline is still useful and important in environment monitoring, industry control, etc. To support energy-efficient skyline monitoring in sensor networks, this paper first presents a naïve approach as baseline, and then proposes an advanced approach that employs hierarchical thresholds at the nodes. The threshold-based approach focuses on minimizing the transmission traffic in the network to save the energy consumption. Finally, we conduct extensive experiments to evaluate the proposed approaches on simulated data sets, and compare the threshold-based approach with the naïve approach. Experimental results show that the proposed threshold-based approach outperforms the naïve approach substantially in energy saving.
Synthetic aperture radar (SAR) image compression is very important in reducing the costs of data storage and transmission. A new compression Scheme is proposed, which is composed of a multilayered image representation...
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In recent years, semantic search has become one hot motivation of the semantic web. In this paper, we propose a semantic-based resource management and search architecture and its implementation in research community, ...
A novel strategy termed as mutation history learning strategy (MHLS) is proposed in this paper. In MHLS, a vector called mutation memory is introduced for each antibody and a new type of mutation operation based on mu...
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In recent years, semantic search has become one hot motivation of the semantic web. In this paper, we propose a semantic-based resource management and search architecture and its implementation in research community, ...
A great variety of languages can be designed by different people for different purposes to operate resource spaces. Two fundamental issues are: can we design more operations in addition to existing operations? and, ho...
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In the human, society, interconnection environment and systems methodology perspectives, this paper answers the following questions: What are the Knowledge Grid and its distinguished features? What are its methodology...
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In this paper we propose a novel speckle suppression method based on the joint of wavelet transform(WT) and independent component analysis (ICA).The method employs ICA to process the wavelet coefficients of images,ext...
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ISBN:
(纸本)0780397371
In this paper we propose a novel speckle suppression method based on the joint of wavelet transform(WT) and independent component analysis (ICA).The method employs ICA to process the wavelet coefficients of images,extracting the independent components which represent the uncorrupt images. Experimental results based on SAR(Synthetic Aperture Radar) images of MSTAR(Moving and Stationary Target Acquisition and Recognition) dataset show that the proposed method suppresses speckle effectively,and outperforms ICA and Lee filter.
Semantics is the meaning expressed by various languages and the study of meaning. Human society co-evolves with diverse semantic spaces holding commonsense, culture, and knowledge of sciences and technologies. By surv...
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ISBN:
(纸本)1595933921
Semantics is the meaning expressed by various languages and the study of meaning. Human society co-evolves with diverse semantic spaces holding commonsense, culture, and knowledge of sciences and technologies. By surveying the origin and development of general semantics, this paper studies the semantics of future interconnection environment, proposes a new notion of open and autonomous interconnection semantics, explores relevant principles and rules, and demonstrates a cultural application. Copyright 2006 ACM.
Knowledge engineering stems from E. A. Figenbaum＇s proposal in 1977, but it will enter a new decade with the new challenges. This paper first summarizes three knowledge engineering experiments we have undertaken to s...
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Knowledge engineering stems from E. A. Figenbaum＇s proposal in 1977, but it will enter a new decade with the new challenges. This paper first summarizes three knowledge engineering experiments we have undertaken to show possibility of separating knowledge development from intelligent software development. We call it the ICAX mode of intelligent application software generation. The key of this mode is to generate knowledge base, which is the source of intelligence of ICAX software, independently and parallel to intelligent software development. That gives birth to a new and more general concept ＂knowware＂. Knowware is a commercialized knowledge module with documentation and intellectual property, which is computer operable, but free of any built-in control mechanism, meeting some industrial standards and embeddable in software/hardware. The process of development, application and management of knowware is called knowware engineering. Two different knowware life cycle models are discussed： the furnace model and the crystallization model. Knowledge middleware is a class of software functioning in all aspects of knowware life cycle models. Finally, this paper also presents some examples of building knowware in the domain of information system engineering.
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