Search results for "Majority rule"

Weakly coupled map lattice models for multicellular patterning and collective normalization of abnormal single-cell states

2017

We present a weakly coupled map lattice model for patterning that explores the effects exerted by weakening the local dynamic rules on model biological and artificial networks composed of two-state building blocks (cells). To this end, we use two cellular automata models based on: (i) a smooth majority rule (model I) and (ii) a set of rules similar to those of Conway's Game of Life (model II). The normal and abnormal cell states evolve according with local rules that are modulated by a parameter $\kappa$. This parameter quantifies the effective weakening of the prescribed rules due to the limited coupling of each cell to its neighborhood and can be experimentally controlled by appropriate e…

LA CONTRATTAZIONE COLLETTIVA NEGLI STATI UNITI DAL WAGNER ACT AI NOSTRI GIORNI

2016

LA CONTRATTAZIONE COLLETTIVA NEGLI STATI UNITI. DAL WAGNER ACT AI NOSTRI GIORNI. — Riassunto. Il presente lavoro analizza la legislazione statunitense in materia di contrattazione collettiva sin dall’emanazione del Wagner Act nel 1935. Al riguardo, vengono discusse le regole per il riconoscimento dei sindacati nei luoghi di lavoro e per la stipula degli accordi collettivi (principio di maggioranza e rappresentanza esclusiva, obbligo di negoziare secondo buona fede) e per la gestione del conflitto industriale (arbitrato e clausola di tregua): sulla scorta di un approccio storico-critico e dei leading case giurisprudenzialil’articolosottolineailcarattereprettamenteaziendaleeprivatisticodellere…

Ensemble of Hankel Matrices for Face Emotion Recognition

2015

In this paper, a face emotion is considered as the result of the composition of multiple concurrent signals, each corresponding to the movements of a specific facial muscle. These concurrent signals are represented by means of a set of multi-scale appearance features that might be correlated with one or more concurrent signals. The extraction of these appearance features from a sequence of face images yields to a set of time series. This paper proposes to use the dynamics regulating each appearance feature time series to recognize among different face emotions. To this purpose, an ensemble of Hankel matrices corresponding to the extracted time series is used for emotion classification withi…

The Philosophy of Democracy and the Paradoxes of Majority Rule

1997

Decision Committee Learning with Dynamic Integration of Classifiers

2000

Decision committee learning has demonstrated spectacular success in reducing classification error from learned classifiers. These techniques develop a classifier in the form of a committee of subsidiary classifiers. The combination of outputs is usually performed by majority vote. Voting, however, has a shortcoming. It is unable to take into account local expertise. When a new instance is difficult to classify, then the average classifier will give a wrong prediction, and the majority vote will more probably result in a wrong prediction. Instead of voting, dynamic integration of classifiers can be used, which is based on the assumption that each committee member is best inside certain subar…

Dynamic Integration of Decision Committees

2000

Decision committee learning has demonstrated outstanding success in reducing classification error with an ensemble of classifiers. In a way a decision committee is a classifier formed upon an ensemble of subsidiary classifiers. Voting, which is commonly used to produce the final decision of committees has, however, a shortcoming. It is unable to take into account local expertise. When a new instance is difficult to classify, then it easily happens that only the minority of the classifiers will succeed, and the majority voting will quite probably result in a wrong classification. We suggest that dynamic integration of classifiers is used instead of majority voting in decision committees. Our…

Federalism and Party Democracy in West Germany

2011

According to Gerhard Lehmbruch, there is a growing inconsistency in West Germany between the principles of a federal polity and party democracy, primarily because the former relies on bargaining, and the latter relies on majority rule as a mechanism of conflict regulation. However, comparative analyses have shown that federalism and party competition are not incompatible. Generally, federal structures are neither detrimental nor conducive to the recruitment function of parties. Competence and experience as a parliamentary leader or as a specialist is the most essential precondition for advancement to national executive positions. The integrative capacities of political parties may even be s…

Dynamic integration with random forests

2006

Random Forests (RF) are a successful ensemble prediction technique that uses majority voting or averaging as a combination function. However, it is clear that each tree in a random forest may have a different contribution in processing a certain instance. In this paper, we demonstrate that the prediction performance of RF may still be improved in some domains by replacing the combination function with dynamic integration, which is based on local performance estimates. Our experiments also demonstrate that the RF Intrinsic Similarity is better than the commonly used Heterogeneous Euclidean/Overlap Metric in finding a neighbourhood for local estimates in the context of dynamic integration of …

Cellular automaton for chimera states

2016

A minimalistic model for chimera states is presented. The model is a cellular automaton (CA) which depends on only one adjustable parameter, the range of the nonlocal coupling, and is built from elementary cellular automata and the majority (voting) rule. This suggests the universality of chimera-like behavior from a new point of view: Already simple CA rules based on the majority rule exhibit this behavior. After a short transient, we find chimera states for arbitrary initial conditions, the system spontaneously splitting into stable domains separated by static boundaries, ones synchronously oscillating and the others incoherent. When the coupling range is local, nontrivial coherent struct…

Modelling Dependencies Between Classifiers in Mobile Masquerader Detection

2004

The unauthorised use of mobile terminals may result in an abuse of sensitive information kept locally on the terminals or accessible over the network. Therefore, there is a need for security means capable of detecting the cases when the legitimate user of the terminal is substituted. The problem of user substitution detection is considered in the paper as a problem of classifying the behaviour of the person interacting with the terminal as originating from the user or someone else. Different aspects of behaviour are analysed by designated one-class classifiers whose classifications are subsequently combined. A modification of majority voting that takes into account some of the dependencies …