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In manufacturing industries, product inspection is automated and the use of image data is increasingly being employed for defect detection. A manufacturing company in Japan produces an item and inspects the produced products using image data. Reducing the error rate is important in product inspection because poor inspection of products might lead to the delivery of defective products to consumers (consumer’s risk) and strict inspection increases production cost (producer’s risk). To reduce the error rate, we highlighted fault points using a two-dimensional moving range filter and discriminated defect production through a unanimous vote among Mahalanobis classifiers for each color component. For results, we achieved a lower error rate than the current system. This research is an empirical study of how to use image data in defect detection. 相似文献
144.
Motoi Iwashita Ken Nishimatsu Takeshi Kurosawa Shinsuke Shimogawa 《The Review of Socionetwork Strategies》2010,4(1):17-28
An increase of broadband demand is forecasted by transitional methods that consider the effect of this increase through many
factors, such as customer requirement diversification, and new service introduction and deployment under competition. Broadband
demand forecasting has become important for closing the digital divide, promoting regional developments, and constructing
networks economically; therefore, a demand forecast model that considers the mechanisms of market structure is necessary.
In this paper, a demand analysis method for broadband access combining macro- and micro-data mining is proposed, and the service
choice behaviour of customers is introduced as a customer model not only to express the macro trend of market structure, but
also to consider area marketing. The proposed method can estimate the potential demand, determine the point at which broadband
demand growth peaks in a specified area, and support a decision for ultra high-speed broadband access facility installation. 相似文献
145.
This paper analyses both quarterly data from the Confederation of British Industry (CBI) Survey on respondents’ expectations
of recent and forthcoming manufacturing output and monthly Office of National Statistics (ONS) figures on actual manufacturing
output within the UK. Quarterly output expectations of the CBI manufacturers are explained from the monthly ONS observations
using a bounded rationality approach. The logistic formulation models the diffusion process across respondents. There is a
backward-looking CBI Survey perspective, explained by past ONS observations, and a forward-looking perspective, explained
from future ONS statistics. Also, the forecasting of monthly manufacturing output from earlier values, along with the quarterly
CBI Survey information, is examined and tested against the alternative Pesaran/Thomas method. The study provides econometric
evidence for the validity of the logistic model and shows that bounded rationality can explain the formation of predictions
among business managers in the UK manufacturing sector. The emerging consensus from the literature, supported by this paper,
is that the logistic format is a superior approximation to the true data generating process compared with the earlier standard
Anderson/Pesaran/Thomas approach. An adjustment to the Survey is used, which achieves perfect symmetry with up and down versions
of the data. The benefits of this adjustment are tested in the forecasting section.
相似文献
David BywatersEmail: |
146.
Specialized advertising media and product market competition 总被引:1,自引:1,他引:1
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Christoph Neuberger 《Publizistik》2018,63(3):443-446
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