Users of hypertext systems like the World Wide Web (WWW) often find themselves following hypertext links deeper and deeper, only to find themselves "lost" and unable to find their way back to the previously ...
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Users of hypertext systems like the World Wide Web (WWW) often find themselves following hypertext links deeper and deeper, only to find themselves "lost" and unable to find their way back to the previously visited pages. We have implemented a Web browser companion called Domain Tree Browser (DTB) that builds a tree structured visual navigation history while browsing the Web. The Domain Tree Browser organizes the URLs visited based on the domain name of each URL and shows thumbnails of each page in a zoomable window.
In the paper we developed a multi-agent system, based on network flow model and KQML, called MASCAN-Multi-Agent system to support negotiation of Cost Allocation on Network. Such problem is very important to the utilit...
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We split the rule extraction task into a subsymbolic and a symbolic phase and present a set of neural networks for filling the former. Under the two general commitments of: (i) having a learning algorithm that is sens...
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We split the rule extraction task into a subsymbolic and a symbolic phase and present a set of neural networks for filling the former. Under the two general commitments of: (i) having a learning algorithm that is sensitive to feedback signals coming from the latter phase, and (ii) extracting Boolean variables whose meaning is determined by the further symbolic processing, we introduce three unsupervised learning algorithms and show related numerical examples for a multilayer perceptron, recurrent neural networks, and a specially devised vector quantizer.
Texture measures have been widely studied in addition to spectral features to characterize land cover type. Texture measures can be used to update land cover maps and enhance classification accuracy. Most previous stu...
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Texture measures have been widely studied in addition to spectral features to characterize land cover type. Texture measures can be used to update land cover maps and enhance classification accuracy. Most previous studies have focussed only on fine resolution data such as Landsat, SPOT and Synthetic Aperture Radar imagery. Texture analysis at coarser resolution (250 m) has not been investigated because data are only beginning to become available with the launch of MODIS (Moderate Resolution Imaging Spectroradiometer). To meet the need of global change research, the MODIS instrument is planned to provide global coverage at 250 m resolution in the red and infrared bands. Early warning of human-induced land cover changes, such as urbanization and deforestation, is expected from MODIS. This paper examines whether texture analysis at this scale would be useful for detecting changes. There are at least two issues in using texture analysis: 1) which texture measures should be used, and 2) what window size is most appropriate for capturing textures. In this study we test a large number of texture measures and window sizes on MODIS data simulated from Landsat data using the data mining technique of feature selection.
We have developed a multi-agent system, based on network flow model and KQML, called MASCAN (multi-agent system to support negotiation of cost allocation on network). Such a problem is very important to the utility in...
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ISBN:
(纸本)0769504930
We have developed a multi-agent system, based on network flow model and KQML, called MASCAN (multi-agent system to support negotiation of cost allocation on network). Such a problem is very important to the utility industries such as electricity and gas, transportation and logistics industry. In our system, each agent represents a node in a network, and it does not receive any centralized controls or centralized information sources. All the decisions are made locally based on the rules or knowledge that each agent has in order to contend with other agents for a possible cheapest path under a fair-play practice. We also assume that each agent is rational. The solution to the cost allocation is the equilibrium point of a noncooperative game, subject to the constraints of the given network. We applied MASCAN to model and support the negotiation of cost allocation of power transmission after the deregulation of the electricity industry.
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