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dc.contributor.authorWei, JDen_US
dc.contributor.authorSun, CTen_US
dc.date.accessioned2014-12-08T15:42:27Z-
dc.date.available2014-12-08T15:42:27Z-
dc.date.issued2002-05-01en_US
dc.identifier.issn0916-8508en_US
dc.identifier.urihttp://hdl.handle.net/11536/28826-
dc.description.abstractConventional system models such as the finite impulse response (FIR.) model, autoregressive external input (ARX) model, time delay neural network (TDNN), and recurrent neural network (RNN) depend on short-term memory when modeling a discrete time system. However, short-term memory can be inefficient with a varying appearance speed of I/O data. This inefficiency is referred to herein as the Varying Appearance Speed Problem (VASP) and demonstrated by analyzing impulse and frequency responses. Simulation results indicate that the varying appearance speed leads to asymmetrical cycles. Unable to prevent the memory effect from extensively disturbing the next output cycle, conventional models simulate the systems inaccurately. A solution using rate independent memory is then proposed. Only concerned with the previous extreme inputs, rate independent memory differs from short-term memory and potentially prevents a system model from the impact of varying appearance speeds. To demonstrate the VASP and verify the proposed model, this study conducts three experiments, i.e. (a) learning random step trajectories of circular and trefoil shapes, (b) modeling the relationship between the economic leading and coincident indexes, (c) simulating the connection between the ground-water level and land subsidence. In contrast to conventional models, the model presented here performs better in terms of mean square errors.en_US
dc.language.isoen_USen_US
dc.subjectsystem modelingen_US
dc.subjectFIR modelen_US
dc.subjectARX modelen_US
dc.subjectTDNNen_US
dc.subjectRNNen_US
dc.titleVarying appearance speed problem in system modeling and a solution via rate independent memoryen_US
dc.typeArticleen_US
dc.identifier.journalIEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCESen_US
dc.citation.volumeE85Aen_US
dc.citation.issue5en_US
dc.citation.spage1119en_US
dc.citation.epage1128en_US
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:000176651000030-
dc.citation.woscount0-
Appears in Collections:Articles