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A Quasi-Optimal Leader Election Algorithm in Radio Networks with Log-Logarithmic Awake Time Slots

Lavault, Christian; Marckert, Jean-François; Ravelomanana, Vlady
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 07/07/2006
Relevância na Pesquisa
26.49%
Radio networks (RN) are distributed systems (\textit{ad hoc networks}) consisting in $n \ge 2$ radio stations. Assuming the number $n$ unknown, two distinct models of RN without collision detection (\textit{no-CD}) are addressed: the model with \textit{weak no-CD} RN and the one with \textit{strong no-CD} RN. We design and analyze two distributed leader election protocols, each one running in each of the above two (no-CD RN) models, respectively. Both randomized protocols are shown to elect a leader within $\BO(\log{(n)})$ expected time, with no station being awake for more than $\BO(\log{\log{(n)}})$ time slots (such algorithms are said to be \textit{energy-efficient}). Therefore, a new class of efficient algorithms is set up that matchthe $\Omega(\log{(n)})$ time lower-bound established by Kushilevitz and Mansour.

Quasi-Optimal Leader Election Algorithms in Radio Networks with Loglogarithmic Awake Time Slots

Lavault, Christian; Marckert, Jean-François; Ravelomanana, Vlady
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 08/07/2006
Relevância na Pesquisa
26.49%
A radio network (RN) is a distributed system consisting of $n$ radio stations. We design and analyze two distributed leader election protocols in RN where the number $n$ of radio stations is unknown. The first algorithm runs under the assumption of {\it limited collision detection}, while the second assumes that {\it no collision detection} is available. By ``limited collision detection'', we mean that if exactly one station sends (broadcasts) a message, then all stations (including the transmitter) that are listening at this moment receive the sent message. By contrast, the second no-collision-detection algorithm assumes that a station cannot simultaneously send and listen signals. Moreover, both protocols allow the stations to keep asleep as long as possible, thus minimizing their awake time slots (such algorithms are called {\it energy-efficient}). Both randomized protocols in RN areshown to elect a leader in $O(\log{(n)})$ expected time, with no station being awake for more than $O(\log{\log{(n)}})$ time slots. Therefore, a new class of efficient algorithms is set up that match the $\Omega(\log{(n)})$ time lower-bound established by Kushilevitz and Mansour.

Distributed protocols for spanning tree construction and leader election

Khuziev, I. M.; Vyalyi, M. N.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 06/12/2015
Relevância na Pesquisa
26.49%
We present fast deterministic distributed protocols in synchronous networks for leader election and spanning tree construction. The protocols are designed under the assumption that nodes in a network have identifiers but the size of an identifier is unlimited. So time bounds of protocols depend on the sizes of identifiers. Depending on a type of a protocol, we present protocols running in time $O(D\log L+L)$ or $O(D\log L+V+L)$, where $L$ is the size of the minimal identifier, $V$ is the number of nodes in a network and $D$ is the diameter of a network.; Comment: Submitted to CSR11

Election results and the Sznajd model on Barabasi network

Bernardes, A. T.; Stauffer, D.; Kertesz, J.
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 08/11/2001
Relevância na Pesquisa
26.49%
The network of Barabasi and Albert, a preferential growth model where a new node is linked to the old ones with a probability proportional to their connectivity, is applied to Brazilian election results. The application of the Sznajd rule, that only agreeing pairs of people can convince their neighbours, gives a vote distribution in good agreement with reality.; Comment: 7 pages including two figures, for Eur. Phys. J. B

Leader Election and Shape Formation with Self-Organizing Programmable Matter

Derakhshandeh, Zahra; Gmyr, Robert; Strothmann, Thim; Bazzi, Rida; Richa, Andréa W.; Scheideler, Christian
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 27/03/2015
Relevância na Pesquisa
26.49%
Many proposals have already been made for realizing programmable matter, ranging from shape-changing molecules, DNA tiles, and synthetic cells to reconfigurable modular robotics. We are particularly interested in programmable matter consisting of simple computational elements, called particles, that can establish and release bonds and can actively move in a self-organized way, and in the feasibility of solving basic problems relevant for programmable matter with them. As a model for such self-organizing particle systems, we will use a general form of the amoebot model first proposed at SPAA 2014. Based on that model, we present efficient local-control algorithms for leader election and path formation requiring only particles with constant size memory, and we also discuss the limitations of solving these problems within the amoebot model.

Improved Bully Election Algorithm for Distributed Systems

Soundarabai, P Beaulah; Sahai, Ritesh; J, Thriveni; Venugopal, K R; Patnaik, L M
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 28/02/2014
Relevância na Pesquisa
26.49%
Electing a leader is a classical problem in distributed computing system. Synchronization between processes often requires one process acting as a coordinator. If an elected leader node fails, the other nodes of the system need to elect another leader without much wasting of time. The bully algorithm is a classical approach for electing a leader in a synchronous distributed computing system, which is used to determine the process with highest priority number as the coordinator. In this paper, we have discussed the limitations of Bully algorithm and proposed a simple and efficient method for the Bully algorithm which reduces the number of messages during the election. Our analytical simulation shows that, our proposed algorithm is more efficient than the Bully algorithm with fewer messages passing and fewer stages.; Comment: 12 pages

La elección y coronación de Juan Casimiro Vasa, rey de Polonia, en las relaciones de sucesos españolas

Pilat Zuzankiewicz, Marta
Fonte: Universidade Autônoma de Barcelona Publicador: Universidade Autônoma de Barcelona
Tipo: Parte de Livro Formato: application/pdf
Publicado em //2015; 2015 SPA
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El objetivo del presente artículo es el análisis de dos relaciones de sucesos, una poética de Francisco Alfantega y Cortés, y otra de carácter informativo de Juan Gómez de Blas, dedicadas al rey polaco Juan Casimiro Vasa. Nos centraremos en las circunstancias de la elección del nuevo monarca y la ceremonia de su coronación a fin de comprobar la fidelidad de los relatos españoles a la luz de los hechos históricos. Asimismo, presentaremos la figura del gobernante, sus relaciones con la Casa de Austria, esperanzas que pone en él la corte española, así como las consecuencias de este cambio político.; The purpose of this article is to analyse two news pamphlets: one in verse by Francisco Alfantega y Cortés, and the other, more informative, by Juan Gómez de Blas, both dedicated to the Polish King, John Casimir Vasa. It focuses on the circumstances of the election of the new king and on his coronation ceremony in order to assess the veracity of the Spanish accounts in the light of the historical facts. It also presents the figure of the ruler, his relations with the House of Austria, the hopes that the Spanish court put in him, and the consequences of this political change.

A neural basis for the effect of candidate appearance on election outcomes

Spezio, Michael L.; Rangel, Antonio; Alvarez, Ramon Michael; O’Doherty, John P.; Mattes, Kyle; Todorov, Alexander; Kim, Hackjin; Adolphs, Ralph
Fonte: Oxford University Press Publicador: Oxford University Press
Tipo: Article; PeerReviewed Formato: application/pdf; application/msword
Publicado em /12/2008
Relevância na Pesquisa
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Election outcomes correlate with judgments based on a candidates visual appearance, suggesting that the attributions viewers make based on appearance, so-called thin-slice judgments, influence voting. Yet, it is not known whether the effect of appearance on voting is more strongly influenced by positive or negative attributions, nor which neural mechanisms subserve this effect. We conducted two independent brain imaging studies to address this question. In Study 1, images of losing candidates elicited greater activation in the insula and ventral anterior cingulate than images of winning candidates. Winning candidates elicited no differential activation at all. This suggests that negative attributions from appearance exert greater influence on voting than do positive. We further tested this hypothesis in Study 2 by asking a separate group of participants to judge which unfamiliar candidate in a pair looked more attractive, competent, deceitful and threatening. When negative attribution processing was enhanced (specifically, under judgment of threat), images of losing candidates again elicited greater activation in the insula and ventral anterior cingulate. Together, these findings support the view that negative attributions play a critical role in mediating the effects of appearance on voter decisions...

Número de candidatos y desarrollo regional en análisis de financiación de campañas: una propuesta metodológica para comparar los efectos de la monetización de las campañas electorales en Brasil; Número efetivo de candidatos e desenvolvimento regional em análises de financiamento de campanhas: uma proposta metodológica para comparar os efeitos da monetarização das campanhas eleitorais no Brasil; Effective number of candidates and regional wealth in campaign finance analyses: A methodological proposal for comparing the effects of the monetization of election campaigns in Brazil

Urizzi Cervi, Emerson
Fonte: Universidade de São Paulo, Universidade de Salamanca e Universia Publicador: Universidade de São Paulo, Universidade de Salamanca e Universia
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; Formato: application/pdf
Publicado em 17/03/2015 SPA
Relevância na Pesquisa
26.49%
El trabajo presenta estudio empírico sobre el efecto de los recursos financieros en los resultados electorales. En Brasil, debido a que es un país de grandes extensiones y heterogeneidad económica, política y social en los distritos electorales, las comparaciones directas son difíciles. Se parte del princpio de que los recursos de campaña tienen pesos diferentes en función de los niveles de la competición politica y de la riqueza regional. Tenemos la intención de proponer un modelo que permite igualar las diferentes condiciones de campaña para evaluar los impactos de los recursos financieros en las disputas. Para ello, hemos utilizado los datos sobre las elecciones de 2010 para diputado federal.; O artigo apresenta um estudo empírico sobre dos recursos financeiros em resultados eleitorais em democracia de massa. No caso do Brasil, por se tratar de um País de grandes extensões e heterogeneidade econômica, política e social nos distritos eleitorais, as comparações diretas são difíceis. Parte-se do princípio que recursos de campanha têm peso distinto em função dos níveis de concorrência política e da riqueza regional. Pretende-se propor um modelo que permita a equalizar distintas condições de campanha para avaliar os impactos dos recursos financeiros nas disputas. Para tanto...

A eleição de Israel na Torá

Chwarts, Suzana
Fonte: Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas Publicador: Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; Artigo Avaliado pelos Pares Formato: application/pdf
Publicado em 10/04/2013 POR
Relevância na Pesquisa
26.49%
O presente artigo consiste em uma explanação dos diferentes sentidos e da complexidade do conceito de eleição na Torá, por meio dos quais podemos apreender um pouco das distintas visões de mundo expressas nesses livros, levando-se em conta que todas elas são representações da auto percepção e consciência do Israel antigo, cujo núcleo reside no princípio de que Deus se relaciona com seu povo não por meio de relações naturais, mas de relações contratuais.; This article is an explanation of the different senses and the complexity of the concept of Election in the Torah, through which we can learn of different worldviews expressed in these books, taking into account that they are all representations of the self-perception and awareness of ancient Israel, whose core is the principle that God relates to his people not through a natural relationship but a contractual one.

Clean Elections: How has public election funding in Maine and Arizona influenced the behavior of non-candidate political actors?

Osborne, Anne
Fonte: Universidade Duke Publicador: Universidade Duke
Publicado em 07/12/2012 EN_US
Relevância na Pesquisa
26.49%
Maine and Arizona implemented public funding systems for state elections in 2000 with the aim of increasing competition and voter choice, curbing election costs, and reducing the influence of special interest money in elections. How have these “Clean Elections” systems influenced or changed the behavior of political actors such as lobbyists, interest groups, party leaders, and legislative staff? Interviews were conducted in both Maine and Arizona to determine whether the amount of money that lobbyists and interest groups spent on elections decreased due to Clean Elections, whether their access to legislators had changed, and whether party leaders were able to focus more on voter contact as opposed to fundraising. Clean Elections did not have an impact on access to legislators, because legislators were open and accessible before the law passed. Similarly, the amount of money spent on elections did not decrease, because lobbyists and special interests found other ways to donate—they now donate to leadership political action committees and state parties, or they make independent expenditures. However, while Clean Elections have not succeeded in limiting the influence of special interest money, they have made the process more democratic and inclusive.; Honors thesis

Reforming the Russian Electoral System

White, Stephen; McAllister, Ian
Fonte: Frank Cass & Co Ltd Publicador: Frank Cass & Co Ltd
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
26.49%
There were no competitive elections until the very last years of Soviet rule. A choice of candidate, however, became possible after 1988, and in 1993 under Boris Yeltsin an entirely new Constitution provided for the election of a two-chamber assembly, half through a national party-list contest and half through a contest among candidates in single-member districts. The discussions that preceded the introduction of these arrangements, and that continued afterwards, ranged the supporters of majoritarianism (including the president and the regionally-based upper house) against the supporters of a mixed system that included party lists (favoured by most members of the Duma or lower house). For majoritarians, a system based on single-member constituencies would keep deputies closer to their constituents, and it would disadvantage their political opponents, particularly the Communists. For those who favoured a system that included national party lists, it would give coherence to the Duma and encourage deputies to address the needs of the country as a whole. These sharp divisions helped to ensure that there were no significant changes in the laws that regulated the 1995 and 1999 Duma elections.

The politics of race and immigration in Australia: One Nation voting in the 1998 Election

Gibson, Rachel K; McAllister, Ian; Swenson, Tami
Fonte: Routledge, Taylor & Francis Group Publicador: Routledge, Taylor & Francis Group
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
26.49%
Much has been written in a short space of time about the rapid rise and equally sharp decline of Pauline Hanson's One Nation Party in Australia. Many of these studies have alluded to the importance of the race issue for One Nation, but argued that ultimately the anti-immigrant and antiaboriginal sentiments associated with the party failed to mobilize voters. This study examines the debate using a multilevel analysis of One Nation [ON] support in the 148 federal electrorates. The competing explanations for ON support are tested using a combination of survey data and aggregate political, demographic and socio-economic statistics. The results show that race and immigration were major factors mobilizing ON supporters, and concerns about economic insecurity were of lesser importance. Conclusions are drawn on the extent to which ON's emergence corresponds to the growth in radical right populism in many continental European nations.

Putin and His Supporters

White, Stephen; McAllister, Ian
Fonte: Carfax Publishing, Taylor & Francis Group Publicador: Carfax Publishing, Taylor & Francis Group
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
26.49%
Putin won a convincing first-round victory in the election, brought forward to March 2000 after El'tsin's unexpected resignation, and in almost every respect his new administration appeared to have arrested or even reversed Russia's long and apparently inexorable decline. The population continued to fall - an alarming trend to which the new president himself drew repeated attention. But economic growth recovered strongly, and the new administration began to assert Russian national interests more vigorously in its dealings with the international community. Above all, it reasserted the power of the central government within Russia itself. The 'anti-terrorist action' in Chechnya was pressed forward; all the republics and regions were obliged to bring their legislation into line with the federal constitution; and presidential representatives were appointed to head seven new federal districts. Much of this recovery, however, depended on the president himself-his formal powers had become no greater. How secure, entering the later stages of his 4-year term, was Vladimir Putin? What were the bases of his popular support? And had he developed a formula of rule that would be sufficient to sustain the 'consolidation' that he regarded as the main achievement of the first year of his new administration?

The patronage patchwork: Village brokerage networks and the power of the state in an Indonesian election

Aspinall, Edward; As'ad, Muhammad Uhaib
Fonte: Brill Publicador: Brill
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
26.49%
This article analyses the roles played by patronage and brokerage in an Indonesian district election by focusing on variation in village-level results. Through interviews with village elites, we found that highly uneven village voting patterns were strongly influenced by varying patterns of patronage distribution. The winning candidate (the son of the incumbent) used a state-centred form of patronage involving pork barrel and club goods that proved more effective than gifts distributed through social, specifically religious, networks. Also critical were effective and trustworthy community-level brokers to deliver patronage, with retail vote-buying especially vulnerable to broker predation. Among the four categories of brokers we identified, state brokers-notably village heads-were especially effective at marshalling votes. Our findings underline the importance of patronage in Indonesian elections and the centrality of brokers in clientelistic systems generally. They also help explain the domination of former bureaucrats in electoral contests in regional Indonesia.

The Australian federal election, October 2004

McAllister, Ian
Fonte: Pergamon-Elsevier Ltd Publicador: Pergamon-Elsevier Ltd
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
26.49%

Winning an Election with Performance: Crossing Thresholds in Ghana; Ganhando uma eleição com performance: transpondo limiares em Gana

Stoeltje, Beverly J.
Fonte: Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas Publicador: Universidade de São Paulo. Faculdade de Filosofia, Letras e Ciências Humanas
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; Formato: application/pdf
Publicado em 30/06/2014 POR
Relevância na Pesquisa
26.49%
Os políticos em Gana regozijam-se chamando uns aos outros de “canalhas perversos” (wicked rascals) e frequentemente se envolvem em ataques e contra-ataques, a chamada “política do pingue-pongue”. Valendo-se do poder da performance, em 2008, um político com boa educação formal recorreu a uma estratégia inovadora na campanha eleitoral: conjurou uma maldição, insinuando que o partido rival havia feito acusações falsas contra o seu partido. Fazendo uso da mídia moderna, ele persuadiu os eleitores e seu partido saiu vitorioso. Este artigo explora o elevado valor atribuído à performance na cultura asante e o papel da maldição na sociedade. Argumenta-se que a performance serve como força dinâmica para a interação social e política, possibilitando transpor limiares na prática e revelar contradições por meio da performance de rituais.; Politicians in Ghana relish calling each other “wicked rascals,” and frequently engage in attacks and counter attacks, labeled “ping pong politics.” Utilizing the power of performance, in 2008, one well -educated politician employed an innovative strategy in the election campaign. He invoked a curse implying the opposition party was guilty of false accusations against his party. Using the modern media he persuaded the voters...

An introduction to the debate on the 1989 presidential election in Brazil; INTRODUÇÃO AO DEBATE SOBRE A ELEIÇÃO PRESIDENCIAL BRASILEIRA DE 1989

Nascimento, Luiz Miguel do
Fonte: UFPR Publicador: UFPR
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; Formato: application/pdf
Publicado em 17/05/2007 POR
Relevância na Pesquisa
26.49%
The study of politics during the 1980s has been largely undertaken by Political Science, Sociology, Communication and Anthropology. It is the author’s opinion that, as a general rule, historians have not devoted themselves to deepen research on this theme during the above period. This fact is greatly felt when the 1989 Brazilian presidential elections are discussed. Current research aims at dialoging with other sciences that have already discussed the election and have much contributed so that this important political event in Brazil could be understood. Without discarding the theoretical and methodological specific references to history, it is of paramount importance that history dedicates itself more to current events, especially the period comprising the last two decades of the 20th century and the present.; A discussão que será realizada neste texto nasceu da constatação de que o estudo da política na década de 1980, em grande parte, vem sendo feito pela Ciência Política, Sociologia, Comunicação e Antropologia. A nosso ver, até o momento, salvo raras exceções, os historiadores não têm se dedicado a pesquisar essa temática no período em questão. Essa ausência é mais sentida...

2014 election on a social network: remix culture and ideological imaginaries on the covers of Veja magazine; Elección 2014 en la red social: cultura remix y los imaginarios ideológicos de las tapas de la revista Veja; Eleição 2014 na rede social: cultura remix e os imaginários ideológicos das capas da revista Veja

Meneguelli, Gisella; Universidade Federal de Juiz de Fora Universidade Federal Fluminense
Fonte: Programa de Pós-Graduação em Linguística - UFSC Publicador: Programa de Pós-Graduação em Linguística - UFSC
Tipo: info:eu-repo/semantics/article; info:eu-repo/semantics/publishedVersion; ; ; ; ; avaliado por pares; Revisão de literatura Formato: application/pdf
Publicado em 14/08/2015 POR
Relevância na Pesquisa
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This paper analyzes the production of meanings on the remixed covers of Veja magazine that circulated on Facebook social network in the second round of the presidential election of 2014, considering its significant plurality (due to the integration of verbal and visual languages) and its divulgation in digital media. As theoretical contribution, we use the concept of socio-discursive imaginary (CHARAUDEAU, 2006; 2013), and the concept of irony (CHARAUDEAU; MAINGUENEAU, 2012; DUCROT, 2001). The analysis shows that both the covers of Veja and the remixed covers include elaborated images and words to influence ideologically the reader’s opinion in the electoral process, which could make him/her change his/her vote.; Esa investigación analisa la producción de sentidos de las tapas remixadas de la revista Veja que circularon en la red social Facebook en la segunda vuelta de la elección presidencial de 2014, considerando su pluralidade significativa (al ser integrados los lenguajes verbal y visual) y su divulgación en medio digital. Desde el punto de vista teórico, nos valemos del concepto imaginario sociodiscursivo (CHARAUDEAU, 2006; 2013) y del concepto de ironia (CHARAUDEAU; MAINGUENEAU, 2012; DUCROT, 2001). El análises muestra que tanto en las tapas de Veja como en las tapas remixadas fueron selecionadas imágenes y palabras con el objectivo de influenciar ideologicamente la opinión del lector en el proceso electoral...

Does political knowledge increase turnout? Evidence from the 1997 British general election

Larcinese, Valentino
Fonte: Suntory and Toyota International Centres for Economics and Related Disciplines, London School of Economics and Political Science Publicador: Suntory and Toyota International Centres for Economics and Related Disciplines, London School of Economics and Political Science
Tipo: Monograph; NonPeerReviewed Formato: application/pdf
Publicado em /02/2005 EN; EN
Relevância na Pesquisa
26.49%
A number of recent formal models predict a positive effect of political knowledge on turnout. Both information acquisition and turnout, however, are likely to be determined by a similar set of variables, rendering hard the identification of a causal link in empirical investigations. Available empirical regularities should therefore be interpreted as mere correlations. I address this problem by using an instrumental variables approach, where the instruments are represented by various proxies of information supply on mass media. Using survey data from the 1997 British General Election Study, I show that political knowledge has a sizeable influence on the probability of voting and that mass media play an important role in influencing political participation.