منابع مشابه
Self-organizing maps for outlier detection
... ____________________________ _ In this paper we address the problem of multivariate outlier detection using the (unsupervised) self-organizing map (SOM) algorithm introduced by Kohonen. We examine a number of techniques, based on summary statistics and graphics derived from the trained SOM, and conclude that they work well in cooperation with each other. Useful tools include the median inte...
متن کاملSelf Organizing Maps for Affective State Detection
In this contribution we present two experimental scenarios in which we employed Self Organizing Maps (SOMs) to detect affective states. The first scenario is related towards designing a “Personal Stress Prevention Assistant”: we summarize our efforts to detect affective information related to stress in the posture channel. We show that a person-independent discrimination of stress from cognitiv...
متن کاملIterativeSOMSO: An Iterative Self-organizing Map for Spatial Outlier Detection
In this paper, we propose an iterative self-organizing map approach for spatial outlier detection (IterativeSOMSO). IterativeSOMSO method can address high dimensional problems for spatial attributes and accurately detect spatial outliers with irregular features. Detection of spatial outliers facilitates further discovery of spatial distribution and attribute information for data mining problems...
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شبکه خود سازمانده پرکاربردترین شبکه عصبی برای انجام خوشه بندی و کوانتیزه نمودن برداری است. از زمان معرفی این شبکه تاکنون، از این روش در مسائل مختلف در حوزه های گوناگون استفاده و توسعه ها و بهبودهای متعددی برای آن ارائه شده است. شبکه خودسازمانده از تعدادی سلول برای تخمین تابع توزیع الگوهای ورودی در فضای چندبعدی استفاده می کند. احتمال وجود سلول مرده مشکلی اساسی در الگوریتم شبکه خودسازمانده به حسا...
Novelty detection using Self-Organizing Maps
Failure detection in process monitoring involves a classiica-tion mainly on the basis of data from normal operation. When a Self-Organizing Map is used for the description of normal system behaviour, a compatibility measure is needed for declaring a map and a dataset as matching. We propose a novel variant of one such measure and investigate usefulness of consisting and novel measures both with...
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ژورنال
عنوان ژورنال: Neurocomputing
سال: 1998
ISSN: 0925-2312
DOI: 10.1016/s0925-2312(97)00068-4