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 Bibliografske baze podataka

Pregled bibliografske jedinice broj: 507733

Časopis

Autori: Slišković, Dražen; Grbić, Ratko; Hocenski, Željko
Naslov: Online data preprocessing in the adaptive process model building based on plant data
( Online data preprocessing in the adaptive process model building based on plant data )
Izvornik: Tehnički vjesnik : znanstveno-stručni časopis tehničkih fakulteta Sveučilišta u Osijeku (1330-3651) 18 (2011), 1; 41-50
Vrsta rada: članak
Ključne riječi: difficult-to-measure variable estimation; online data preprocessing; online model parameter updating; plant data
( difficult-to-measure variable estimation; online data preprocessing; online model parameter updating; plant data )
Sažetak:
Process variables which are concerned with the quality of final product cannot often be measured by a sensor. The alternative procedure is the estimation of these difficult-to-measure process variables for which it is necessary to have an appropriate process model. Process model building, based on plant data taken from the process database, is usually the most cost-effective way to obtain a process model. Since the quality of the built model depends heavily on the modelling data informativity, preprocessing of the available measured data is an important step in such process modelling. Processes are usually time-varying and non-stationary, so that the precision of the estimation based on process model with constant parameters degrades over time. Because of that, model parameters have to be updated online. However, in order to successfully keep the precision of the estimation, it is important to use the samples which do not contain errors in the parameter updating procedure which requires a quality online data preprocessing. The online data preprocessing and online model parameter updating are discussed and presented on two examples and the influence of data preprocessing on adaptive process model quality is analyzed.
Projekt / tema: 165-0361621-2000, 165-0362980-2002
Izvorni jezik: eng
Rad je indeksiran u
bazama podataka:
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Elektrotehnika,Računarstvo
URL Internet adrese: http://hrcak.srce.hr/file/98624
http://hrcak.srce.hr/65923
URL cjelovitog teksta: http://hrcak.srce.hr/file/98624
Google Scholar: Online data preprocessing in the adaptive process model building based on plant data
Upisao u CROSBI: rgrbic@etfos.hr (rgrbic@etfos.hr), 28. Ožu. 2011. u 10:20 sati



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