نتایج جستجو برای: dissimilarity measure

تعداد نتایج: 349966  

2012
Christos Koniaris Olov Engwall Giampiero Salvi

In this paper we demonstrate that a psychoacoustic model-based distance measure performs better than a speech signal distance measure in assessing the pronunciation of individual foreign speakers. The experiments show that the perceptualbased method performs not only quantitatively better than a speech spectrum-based method, but also qualitatively better, hence showing that auditory information...

Journal: :CoRR 2005
Lun Li David L. Alderson Reiko Tanaka John Doyle Walter Willinger

Although the “scale-free” literature is large and growing, it gives neither a precise definition of scale-free graphs nor rigorous proofs of many of their claimed properties. In fact, it is easily shown that the existing theory has many inherent contradictions and verifiably false claims. In this paper, we propose a new, mathematically precise, and structural definition of the extent to which a...

2015
Sang-Woon Kim

This paper presents an empirical evaluation on a dissimilarity measure strategy by which dissimilarity-based classifications (DBC) can be implemented efficiently. In DBC, classification is not based on feature measurements of individual objects (a set of attributes), but rather on a suitable dissimilarity measure among the individual objects (pair-wise object comparisons). One problem of DBC is...

2011
Riccardo Satta Giorgio Fumera Fabio Roli

Person re-identification is the task of recognizing an individual that has already been observed over a network of video-surveillance cameras. Methods proposed in literature so far addressed this issue as a classical matching problem: a descriptor is built directly from the view of the person, and a similarity measure between descriptors is defined accordingly. In this work, we propose a genera...

Journal: :Inf. Sci. 2013
Inés Couso Laura Garrido Luciano Sánchez

The paper deals with the well-known notion of (dis)similarity measures between fuzzy sets. We provide three separate lists of axioms that fit with the respective notions of “general comparison measure”, “similarity measure” and “dissimilarity measure”. Then we review some of the most important axiomatic definitions of (dis)similarity measures in the literature, by referring to the axioms in tho...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2001
L Diambra

We propose a measure of divergence of probability distributions for quantifying the dissimilarity of two chaotic attractors. This measure is defined in terms of a generalized entropy. We illustrate our procedure by considering the effect of additive noise in the well known Hénon attractor. Finally, we show how our approach allows one to detect nonstationary events in a time series.

2009
Rebecca Allen Simon Burgess Frank Windmeijer

The most widely used measure of segregation is the dissimilarity index, D. It is now well understood that this measure also reflects randomness in the allocation of individuals to units; that is, it measures deviations from evenness not deviations from randomness. This leads to potentially large values of the segregation index when unit sizes and/or minority proportions are small, even if there...

2017
Hadi Raeisi Shahraki Saeedeh Pourahmad Najaf Zare

K nearest neighbors (KNN) are known as one of the simplest nonparametric classifiers but in high dimensional setting accuracy of KNN are affected by nuisance features. In this study, we proposed the K important neighbors (KIN) as a novel approach for binary classification in high dimensional problems. To avoid the curse of dimensionality, we implemented smoothly clipped absolute deviation (SCAD...

2015
Rebecca Allen Simon Burgess Russell Davidson Frank Windmeijer

The most widely used measure of segregation is the so-called dissimilarity index. It is now well understood that this measure also reflects randomness in the allocation of individuals to units (i.e. it measures deviations from evenness, not deviations from randomness). This leads to potentially large values of the segregation index when unit sizes and/or minority proportions are small, even if ...

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