Search results for "Normal"
showing 10 items of 2571 documents
“Anti-Bayesian” flat and hierarchical clustering using symmetric quantiloids
2017
A myriad of works has been published for achieving data clustering based on the Bayesian paradigm, where the clustering sometimes resorts to Naive-Bayes decisions. Within the domain of clustering, the Bayesian principle corresponds to assigning the unlabelled samples to the cluster whose mean (or centroid) is the closest. Recently, Oommen and his co-authors have proposed a novel, counter-intuitive and pioneering PR scheme that is radically opposed to the Bayesian principle. The rational for this paradigm, referred to as the “Anti-Bayesian” (AB) paradigm, involves classification based on the non-central quantiles of the distributions. The first-reported work to achieve clustering using the A…
On the obvious positive interspecific relationship between abundance and distribution: a reply to Blackburn and Gaston
2009
Thomas Kuhn described normal science as ‘ … research firmly based upon one or more past scientific achievements … ’, that ‘ … does not aim at novelties of fact or theory and, when successful, finds none’ ([Kuhn 1996][1]). Kuhn divides scientific enterprise into three faces: normal
Innovation or Normalization in E-Campaigning?
2008
■ Scholars have seldom tested the innovation and normalization paradigm of e-campaigning over time. Particularly outside the US, there is a lack of comparative analyses of candidate or party websites that deal with the concept's temporal validity and scope. The article addresses this research gap through a longitudinal content and structural analysis of German party websites in the 2002 and 2005 national elections. The results provide empirical evidence of a twofold development of federal e-campaigns: while the major party websites evolved over time in information density, interactivity and sophistication (innovation), the minor parties were throughout characterized by an underutilization o…
Statistical validation of simulation models of observable systems
2003
In this paper, for validating computer simulation models of real, observable systems, an uniformly most powerful invariant (UMPI) test is developed from the generalized maximum likelihood ratio (GMLR). This test can be considered as a result of a new approach to solving the Behrens‐Fisher problem when covariance matrices of two multivariate normal populations (compared with respect to their means) are different and unknown. The test is based on invariant statistic whose distribution, under the null hypothesis, does not depend on the unknown (nuisance) parameters. The sample size and threshold of the UMPI test are determined from minimization of the weighted sum of the model builder's risk a…
Soil Water Content Diachronic Mapping: An FFT Frequency Analysis of a Temperature–Vegetation Index
2020
Among the indirect estimation approaches of soil water content in the upper layer of the soil, the &ldquo
Tomita—Takesaki Theory in Partial O*-Algebras
2002
This chapter is devoted to the development of the Tomita-Takesaki theory in partial O*-algebras. In Section 5.1, we introduce and investigate the notion of cyclic generalized vectors for a partial O*-algebra, generalizing that of cyclic vectors, and its commutants. Section 5.2 introduces the notion of a cyclic and separating system (M, λ, λ c ), which consists of a partial O*-algebra M, a cyclic generalized vector λ for M and the commutant λ c of λ. A cyclic and separating system (M, λ, λ c ) determines the cyclic and separating system ((M w ′ )′, λ cc , (λ cc ) c ) of the von Neumann algebra (M w ′ )′, and this makes it possible to develop the Tornita-Takesaki theory. Then λ can be extende…
*-Representations of Partial *-Algebras
2002
This chapter is devoted to *-representations of partial *-algebras. We introduce in Section 7.1 the notions of closed, fully closed, self-adjoint and integrable *-representations. In Section 7.2, the intertwining spaces of two *-representations of a partial *-algebra are defined and investigated, and using them we define the induced extensions of a *-representation. Section 7.3 deals with vector representations for a *-representation of a partial *-algebra, which are the appropriate generalization to a *-representation of the notion of generalized vectors described in Chapter 5. Regular and singular vector representations are defined and characterized by the properties of the commutant, and…
Palabras tejidas: método y uso de un tesauro multilingüe de la seda
2021
El patrimonio europeo de la seda es un patrimonio integral que abarca tanto bienes materiales (telares, tejidos, hilos, etc.) como un importante patrimonio inmaterial lingüístico. Su importancia como patrimonio es indudable, pero aunque la seda ha tejido Europa y se sigue utilizando en numerosos contextos, la tejeduría tradicional está en riesgo por la pérdida gradual de artesanos que salvaguarden el conocimiento ancestral. Además, la seda sigue siendo relevante para las personas que experimentan conexiones vivas, personales y sociales con este patrimonio, el cual está vinculado a tantas historias de vida y relatos colectivos que ha generado numerosos vocablos propios. El modo en que se han…
Assessment of drainage network analysis methods to rank sediment yield hotspots
2021
This paper aims to test different methods used for assessing sediment yield indices to identify hotspots and rank sediment yield hotspots. This process includes the assessment of the entropy weight...
The Authorities’ Attitude Towards Treasure Hunting
2012
Shortly after the fall of the Bastille, a London newspaper was scandalized that people had been imprisoned there for mere trifles. Among the prisoners listed was a certain Girard, allegedly a treasure seeker.1 Was treasure seeking indeed merely a trifling offence? What had the courts and law enforcement agencies of premodern Britain and Europe to say about it? As we have seen in Chapter 1, treasure hunting as such was hardly ever illegal. It was, however, riddled with legal difficulties. What percentage of his find would the treasure hunter actually get? What would the fisc demand for the prince’s coffers? In addition to these juridical problems, an important part of pre-modern treasure hun…