منابع مشابه
Clustering data with measurement errors
Traditional clustering methods assume that there is no measurement error, or uncertainty, associated with data. Often, however, real world applications require treatment of data that have such errors. In the presence of measurement errors, well-known clustering methods like k-means and hierarchical clustering may not produce satisfactory results. The fundamental question addressed in this paper...
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Medidas analíticas modernas são comumente apresentadas na forma de vetores (e.g., espectros) ou estruturas de dados de ordem maior como matrizes, que são normalmente sujeitas a estratégias de análise multivariada de dados para a extração de informações. Um aspecto dessas medidas que normalmente é pouco compreendida é a natureza subentendida dos erros, e como eles afetam a obtenção da informação...
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Measurement is the act or the result, of a quantitative comparison between a given quantity and a quantity of the same kind chosen as a unit. It is for observing and testing scientific and technological investigations and generally agreed that all measurements contain errors. In a measuring system where both a measuring instrument and a human being taking the measurement using a preset process,...
متن کاملCost-Sensitive Feature Selection of Numeric Data with Measurement Errors
Feature selection is an essential process in datamining applications since it reduces amodel’s complexity. However, feature selection with various types of costs is still a new research topic. In this paper, we study the cost-sensitive feature selection problem of numeric datawithmeasurement errors.Themajor contributions of this paper are fourfold. First, a newdatamodel is built to address test...
متن کاملInstrumental Variables Quantile Regression for Panel Data with Measurement Errors∗
This paper develops an instrumental variables estimator for quantile regression in panel data with fixed effects. Asymptotic properties of the instrumental variables estimator are studied for large N and T when Na/T → 0, for some a > 0. Wald and Kolmogorov-Smirnov type tests for general linear restrictions are developed. The estimator is applied to the problem of measurement errors in variables...
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ژورنال
عنوان ژورنال: Journal of the Illuminating Engineering Institute of Japan
سال: 1995
ISSN: 0019-2341,1349-838X,2185-1506
DOI: 10.2150/jieij1980.79.appendix_119