نتایج جستجو برای: aggregation functions

تعداد نتایج: 552213  

Journal: :journal of physical & theoretical chemistry 2005
m. keshavarz k. zare m. akbarzadeh m.r khoshchehreh a.f.b mahdavi

in the present work, the interaction of three water soluble porphyrins, tetra (p-trimethyle) ammoniumphenyl porphyrin iodide (tapp) as a cationic porphyrin, tetra sodium meso-tetrakis (p-sulphonatophenyle) porphyrin (tspp) as an anionic porphyrin and manganese tetrakis (p-sulphonato phenyl)porphinato acetate (mntspp) as a metal porphyrin, with dna have been studied by isothermaltitration microc...

2016
Maciej Bartoszuk Gleb Beliakov Marek Gagolewski Simon James

The use of supervised learning techniques for fitting weights and/or generator functions of weighted quasi-arithmetic means – a special class of idempotent and nondecreasing aggregation functions – to empirical data has already been considered in a number of papers. Nevertheless, there are still some important issues that have not been discussed in the literature yet. In the first part of this ...

Journal: :Fuzzy Sets and Systems 2013
Javier Martín Gaspar Mayor Óscar Valero

The problem of how to merge, by means of a function, a family of metrics into a single one was studied deeply by J. Borsík and J. Doboš [On a product of metric spaces, Math. Slovaca 31 (1981) 193–205]. Motivated by the utility of quasi-metrics in Computer Science, the Borsík and Doboš study was extended to the quasi-metric context in such a way that a general description of how to combine throu...

Journal: :International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems 2000
Tomasa Calvo Gaspar Mayor Joan Torrens Jaume Suñer Margarita Mas Marc Carbonell

In this work, we present several ways to obtain different types of weighting triangles, due to these types characterize some interesting properties of Extended Ordered Weighted Averaging operators, EOWA, and Extended Quasi–linear Weighted Mean, EQLWM, as well as of their reverse functions. We show that any quantifier determines an EOWA operator which is also an Extended Aggregation Function, EA...

2008
Ofer Arieli

We introduce a general framework for reasoning with prioritized data by aggregation of distance functions, study some basic properties of the entailment relations that are obtained, and relate them to other approaches for maintaining uncertain information.

Journal: :Fuzzy Sets and Systems 2016
Salvatore Greco Radko Mesiar Fabio Rindone Ladislav Sipeky

We propose the concepts of superadditive and of subadditive transformations of aggregation functions acting on non-negative reals, in particular of integrals with respect to monotone measures. We discuss special properties of the proposed transforms and links between some distinguished integrals. Superadditive transformation of the Choquet integral, as well as of the Shilkret integral, is shown...

Journal: :Order 2004
Jean-Luc Marichal Radko Mesiar

We define and investigate the scale independent aggregation functions that are meaningful to aggregate finite ordinal numerical scales. Here scale independence means that the functions always have discrete representatives when the ordinal scales are considered as totally ordered finite sets. We also show that those scale independent functions identify with the so-called order invariant function...

2016
Hao Ren Hongwei Li Xiaohui Liang Shibo He Yuan-Shun Dai Lian Zhao

With the rapid growth of the health data scale, the limited storage and computation resources of wireless body area sensor networks (WBANs) is becoming a barrier to their development. Therefore, outsourcing the encrypted health data to the cloud has been an appealing strategy. However, date aggregation will become difficult. Some recently-proposed schemes try to address this problem. However, t...

2008
A. Kavitha S. Ramakrishnan

Aggregation of red blood cells which manifests in the form of rouleaux is a major determinant of flow behavior of blood in both micro and macro circulation. Any alteration in the normal behavior is found to be a critical factor in plugging of arterioles and venules forming irreversible clumps. In this work, the aggregation behavior of red blood cells is analyzed using Wavelet transforms. The ar...

2007
Marta Cardin Silvio Giove

This paper deals with non-monotonic Choquet integral, a generalization of the regular Choquet integral. The discrete non-monotonic Choquet integral is considered under the viewpoint of aggregation. In particular we give an axiomatic characterization of the class of non-monotonic Choquet integrals.We show how the Shapley index, in contrast with the monotonic case, can assume positive values if t...

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