]> 2026-04-04T20:33:53+02:00 Publications:Screening paper Formation variations on production line 500 en <p>This paper is concerned with a multi–resolution tool for screening paper formation variations in various frequency regions on production line. A paper web is illuminated by two red diode lasers and the reflected light recorded as two time series of high resolution measurements constitute the input signal to the papermaking process monitoring system. The time series are divided into blocks and each block is analyzed separately. The task is treated as kernel based novelty detection applied to a multi–resolution time series representation obtained from the band-pass filtering of the Fourier power spectrum of the series. The frequency content of each frequency region is characterized by a feature vector, which is transformed using the canonical correlation analysis and then categorized into the inlier or outlier class by the novelty detector. The ratio of outlying data points, significantly exceeding the predetermined value, indicates abnormalities in the paper formation. The tools developed are used for online paper formation monitoring in a paper mill.</p> 20th International Conference on Industrial, Engineering and Other Applications of Applied Intelligent Systems Location, Kyoto, JAPAN, JUN 26-29, 2007 http://dx.doi.org/10.1007/978-3-540-73325-6_51 http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:239321 520 New Trends in Applied Artificial Intelligence, Proceedings Conference Paper Lecture Notes in Artificial Intelligence ; 4570 511 Screening paper Formation variations on production line 2007 2016-09-30T20:40:12Z 2457662.36125 Screening paper Formation variations on production line 500 0 plainlist list 1 [[:Publications:Screening paper Formation variations on production line]] Screening paper Formation variations on production line# QUERYd0622c47bfe7857b8471a94df87812bd 500 [2,"smw-datavalue-property-restricted-annotation-use","Publisher"] Screening paper Formation variations on production line# ERR6c155b5d70b69ddb590b4f2e73389c2a 500 [2,"smw-datavalue-property-restricted-annotation-use","Author"] Screening paper Formation variations on production line# ERRe24f17e090c98448f3de99d03182b7b6