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IT žinių portalo reitingavimo modelis / Internet news portal ranking modelVanagas, Kęstutis 16 August 2007 (has links)
Straipsnyje analizuojami egzistuojantys internetinių svetainių reitingavimo metodai. Sudarytas naujas internetinės svetainės reitingavimo modelis lanksčiai skaičiuoja reitinguojamų vienetų, tokių kaip vartotojai, talpinami straipsniai, reitingus, leidžia sistemai dirbti su minimaliu administruojančio asmens įsikišimu bei turi galimybę prapl��sti reitinguojamų vienetų aibę. Reitingavimo sistemos modelis taikomas publikuojamų žinių svetainės struktūrai ir savo pagrindinę funkcinę darbo dalį atlieka autonomiškai. / In this article we analyze existence web portal ranking methods. New web portal ranking model suggested which calculates ratings for ranking units, such as users or placed articles. Also this method works without administrative user intervention but has possibility to extend ranking units set without changing data collection structure in data base. This ranking model applicable for news web portal and mainly all functional work performs by itself.
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Integrated Cluster Environment (ICE) : plataforma de gerenciamento e de acesso a múltiplos clusters / Management and Access Platform for Multiple ClustersMarquezan, Clarissa Cassales January 2006 (has links)
Facilitar o gerenciamento e o acesso a sistemas de alto desempenho vem sendo uma área de pesquisa explorada nos últimos anos. Isto acontece uma vez que se verifica o aumento do número de usuários, muitos pertencentes a outras áreas, como por exemplo, biologia, geologia, hidrologia, etc e, desta forma, é preciso facilitar os meios de interação destes usuários com tais sistemas, assim como melhorar as técnicas de gerenciamento dos mesmos. Além do aumento do número e da multidisciplinaridade desses usuários, existe também o fato de que grande parte deles tem acesso a diferentes tipos de sistemas de alto desempenho. Em geral, estes sistemas possuem ferramentas não padronizadas, sendo que cada uma apresenta uma interface e um conjunto de ações e comandos a serem realizados para que possam dispor de suas funcionalidades. Este trabalho propõe a definição de uma arquitetura de gerenciamento e acesso a múltiplos clusters, que seja capaz de ser facilmente extensível, transparente, interoperável e de fácil utilização configuração e manutenção. Como resultado da arquitetura proposta, foi desenvolvido um protótipo, denominado ICE - Integrated Cluster Environment. Os principais objetivos da arquitetura e do ambiente ICE são: (i) capacidade de uniformização do modo como as ferramentas de clusters são utilizadas e, também, uniformização na maneira como os clusters são acessados; (ii) transparência na forma de acesso e uso dos clusters; e (iii) capacidade de extensibilidade em dois níveis: o primeiro refere-se á extensibilidade do número de funcionalidades (serviços) providos pelo sistema e o segundo está relacionado á capacidade do sistema lidar com o uso de diferentes ferramentas que possuem a mesma funcionalidade. Além da descrição da arquitetura e do protótipo, neste trabalho, também é realizada uma avaliação do ambiente ICE. Essa avaliação foi dividida em dois momentos. O primeiro traz a comparação das características do ambiente proposto com algumas ferramentas relacionadas. No segundo momento são apresentados alguns experimentos que visam identificar o overhead inserido pelo ambiente ICE na execução das operaçõess do módulo de gerenciamento de aplicações, desenvolvido e descrito neste trabalho. / Some researches have been done over the last years in order to improve the management and access of high performance systems. One of the motivations of these researches is the continuously increase in the number of users who, not rarely, belong to other areas, such as biology, geology, hydrology, etc; so it is necessary to provide some access and also management facilities in these kinds of systems. Furthermore, the users also have access to different kinds of high performance systems, and they have to deal with distinct tools of their underlying, which are not standardize. Therefore, the users need to learn the specificities of each tool in each high performace system that they have permission to access. Aiming to solve this problem, this work proposes an architecture to provide access and management of multiple clusters with extensibility, transparance, interoperability, user-friendly, manageability and maintainability. As a result of the proposed architecture, a prototype called ICE - Integrated Cluster Environment - was developed. The main goals of the architecture and the ICE environment are: (i) the capability of uniforming the manner the cluster tools are used and accessed; (ii) cluster access and transparence use; and (iii) two extensibility levels: the first one refers to capability of extending the number of functionalities/services provided by the environment and the second one concerns to the capability of extending the number of tools, with the same functionality, the system is able to manage. Beyond the architecture and prototype description, this research presents the evaluation of ICE environment, which is divided in two parts. The first one brings the comparison of the features between ICE and some related work. The second part shows some experiments that intend to verify the overhead inserted by ICE environment when performing the tasks of the job management module, also developed and explained in this work.
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Integrated Cluster Environment (ICE) : plataforma de gerenciamento e de acesso a múltiplos clusters / Management and Access Platform for Multiple ClustersMarquezan, Clarissa Cassales January 2006 (has links)
Facilitar o gerenciamento e o acesso a sistemas de alto desempenho vem sendo uma área de pesquisa explorada nos últimos anos. Isto acontece uma vez que se verifica o aumento do número de usuários, muitos pertencentes a outras áreas, como por exemplo, biologia, geologia, hidrologia, etc e, desta forma, é preciso facilitar os meios de interação destes usuários com tais sistemas, assim como melhorar as técnicas de gerenciamento dos mesmos. Além do aumento do número e da multidisciplinaridade desses usuários, existe também o fato de que grande parte deles tem acesso a diferentes tipos de sistemas de alto desempenho. Em geral, estes sistemas possuem ferramentas não padronizadas, sendo que cada uma apresenta uma interface e um conjunto de ações e comandos a serem realizados para que possam dispor de suas funcionalidades. Este trabalho propõe a definição de uma arquitetura de gerenciamento e acesso a múltiplos clusters, que seja capaz de ser facilmente extensível, transparente, interoperável e de fácil utilização configuração e manutenção. Como resultado da arquitetura proposta, foi desenvolvido um protótipo, denominado ICE - Integrated Cluster Environment. Os principais objetivos da arquitetura e do ambiente ICE são: (i) capacidade de uniformização do modo como as ferramentas de clusters são utilizadas e, também, uniformização na maneira como os clusters são acessados; (ii) transparência na forma de acesso e uso dos clusters; e (iii) capacidade de extensibilidade em dois níveis: o primeiro refere-se á extensibilidade do número de funcionalidades (serviços) providos pelo sistema e o segundo está relacionado á capacidade do sistema lidar com o uso de diferentes ferramentas que possuem a mesma funcionalidade. Além da descrição da arquitetura e do protótipo, neste trabalho, também é realizada uma avaliação do ambiente ICE. Essa avaliação foi dividida em dois momentos. O primeiro traz a comparação das características do ambiente proposto com algumas ferramentas relacionadas. No segundo momento são apresentados alguns experimentos que visam identificar o overhead inserido pelo ambiente ICE na execução das operaçõess do módulo de gerenciamento de aplicações, desenvolvido e descrito neste trabalho. / Some researches have been done over the last years in order to improve the management and access of high performance systems. One of the motivations of these researches is the continuously increase in the number of users who, not rarely, belong to other areas, such as biology, geology, hydrology, etc; so it is necessary to provide some access and also management facilities in these kinds of systems. Furthermore, the users also have access to different kinds of high performance systems, and they have to deal with distinct tools of their underlying, which are not standardize. Therefore, the users need to learn the specificities of each tool in each high performace system that they have permission to access. Aiming to solve this problem, this work proposes an architecture to provide access and management of multiple clusters with extensibility, transparance, interoperability, user-friendly, manageability and maintainability. As a result of the proposed architecture, a prototype called ICE - Integrated Cluster Environment - was developed. The main goals of the architecture and the ICE environment are: (i) the capability of uniforming the manner the cluster tools are used and accessed; (ii) cluster access and transparence use; and (iii) two extensibility levels: the first one refers to capability of extending the number of functionalities/services provided by the environment and the second one concerns to the capability of extending the number of tools, with the same functionality, the system is able to manage. Beyond the architecture and prototype description, this research presents the evaluation of ICE environment, which is divided in two parts. The first one brings the comparison of the features between ICE and some related work. The second part shows some experiments that intend to verify the overhead inserted by ICE environment when performing the tasks of the job management module, also developed and explained in this work.
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Integrated Cluster Environment (ICE) : plataforma de gerenciamento e de acesso a múltiplos clusters / Management and Access Platform for Multiple ClustersMarquezan, Clarissa Cassales January 2006 (has links)
Facilitar o gerenciamento e o acesso a sistemas de alto desempenho vem sendo uma área de pesquisa explorada nos últimos anos. Isto acontece uma vez que se verifica o aumento do número de usuários, muitos pertencentes a outras áreas, como por exemplo, biologia, geologia, hidrologia, etc e, desta forma, é preciso facilitar os meios de interação destes usuários com tais sistemas, assim como melhorar as técnicas de gerenciamento dos mesmos. Além do aumento do número e da multidisciplinaridade desses usuários, existe também o fato de que grande parte deles tem acesso a diferentes tipos de sistemas de alto desempenho. Em geral, estes sistemas possuem ferramentas não padronizadas, sendo que cada uma apresenta uma interface e um conjunto de ações e comandos a serem realizados para que possam dispor de suas funcionalidades. Este trabalho propõe a definição de uma arquitetura de gerenciamento e acesso a múltiplos clusters, que seja capaz de ser facilmente extensível, transparente, interoperável e de fácil utilização configuração e manutenção. Como resultado da arquitetura proposta, foi desenvolvido um protótipo, denominado ICE - Integrated Cluster Environment. Os principais objetivos da arquitetura e do ambiente ICE são: (i) capacidade de uniformização do modo como as ferramentas de clusters são utilizadas e, também, uniformização na maneira como os clusters são acessados; (ii) transparência na forma de acesso e uso dos clusters; e (iii) capacidade de extensibilidade em dois níveis: o primeiro refere-se á extensibilidade do número de funcionalidades (serviços) providos pelo sistema e o segundo está relacionado á capacidade do sistema lidar com o uso de diferentes ferramentas que possuem a mesma funcionalidade. Além da descrição da arquitetura e do protótipo, neste trabalho, também é realizada uma avaliação do ambiente ICE. Essa avaliação foi dividida em dois momentos. O primeiro traz a comparação das características do ambiente proposto com algumas ferramentas relacionadas. No segundo momento são apresentados alguns experimentos que visam identificar o overhead inserido pelo ambiente ICE na execução das operaçõess do módulo de gerenciamento de aplicações, desenvolvido e descrito neste trabalho. / Some researches have been done over the last years in order to improve the management and access of high performance systems. One of the motivations of these researches is the continuously increase in the number of users who, not rarely, belong to other areas, such as biology, geology, hydrology, etc; so it is necessary to provide some access and also management facilities in these kinds of systems. Furthermore, the users also have access to different kinds of high performance systems, and they have to deal with distinct tools of their underlying, which are not standardize. Therefore, the users need to learn the specificities of each tool in each high performace system that they have permission to access. Aiming to solve this problem, this work proposes an architecture to provide access and management of multiple clusters with extensibility, transparance, interoperability, user-friendly, manageability and maintainability. As a result of the proposed architecture, a prototype called ICE - Integrated Cluster Environment - was developed. The main goals of the architecture and the ICE environment are: (i) the capability of uniforming the manner the cluster tools are used and accessed; (ii) cluster access and transparence use; and (iii) two extensibility levels: the first one refers to capability of extending the number of functionalities/services provided by the environment and the second one concerns to the capability of extending the number of tools, with the same functionality, the system is able to manage. Beyond the architecture and prototype description, this research presents the evaluation of ICE environment, which is divided in two parts. The first one brings the comparison of the features between ICE and some related work. The second part shows some experiments that intend to verify the overhead inserted by ICE environment when performing the tasks of the job management module, also developed and explained in this work.
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Architecture Autonome et Extensible pour une Couche de Transport Évolutive. Application aux Communications Aéronautique par Satellites / Extensible and Standalone Architecture for a Scalable Transport Layer.Application to Aeronautical Satellite CommunicationsOulmahdi, Mohamed 24 November 2017 (has links)
Ces dernières décennies ont été caractérisées par une évolution massive de l'Internet sur tous les plans, couvrant les applications et les technologies réseau. En conséquence, de nouveaux besoins pour les applications et de nouvelles contraintes réseaux apparaissent ; rendant ainsi les protocole (TCP et UDP notamment) de moins en moins efficaces, et plusieurs nouveaux protocoles ont été proposés. Cependant, à cause de plusieurs limites architecturales de la couche Transport, ces nouveaux protocoles n'ont pas été déployés.Partant de ce constat, le travail effectué dans cette thèse porte sur la proposition et la réalisation d'une architecture pour la couche Transport, orientée services et basée composants, dotée de capacités d'extensibilité et d'autoadaptation vis-à-vis des évolutions du contexte applicatif et réseau. La solution proposée repose, d'une part, sur un faible couplage entre les éléments extérieurs (applications et systèmes) et la couche Transport, ainsi qu'entre les composants internes de l'architecture. D'autre part, elle se base sur des modèles et des algorithmes lui permettant de détecter et de prendre en compte les évolutions du réseau ou des applications, et d'adapter son comportement en conséquence. Une implémentation complète de la solution est proposée et testée dans un cadre de communications aéronautiques par satellite. L'objectif étant la gestion de la transition des protocoles spécifique au monde aéronautique vers les protocoles de l'Internet, ainsi que la gestion, au niveau Transport, des liens physiques hétérogènes. Les tests démontrent la faisabilité d'une telle architecture extensible et autonome, les gains en performance qu'il est possible d'obtenir, et les coûts qui en résultent. / The recent decades are characterized by an important evolution of the Internet at all planes, covering applications and network technologies. This evolution results on new applications requirements and new networks constraints making classical protocols (TCP and UDP typically) less and less suitable. Consequently, many new more efficient protocols have been proposed. However, due to several limitations of the actual Transport layer, these new protocols have not been deployed.From this statement, the work presented in this thesis is about the proposition and the realization of an architecture for the Transport layer, including extensibility and auto-adaptability capabilities regarding the evolution of application and network context. The proposed solution is based on low-coupling between, in a part, the Transport layer and the external actors (applications and systems), and in the other part between the internal component of the architecture. In parallel, the architecture is based on models and algorithms for detecting and taking into account the evolution of networks and applications, and adapt it behavior consequently. A complete implementation of the solution is proposed and evaluated in the context of aeronautical communications by satellite. The aim is the management of the transition phase of the aeronautical network to the Internet protocols suite, and the management of the heterogeneity of the different physical links. The tests demonstrated the feasibility of such extensible and autonomic architecture, the performances gains which can be obtained, and the resulting cost.
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Framework integration in practiceCherkasov, Stanislav January 2015 (has links)
Development of modern software is a challenging task that requires software developers to leverageexisting functionality by means of reusable code structures, libraries, frameworks and middleware. This allows shortening development time and lowering costs, while keeping resulting software competitive, reliable and maintainable.However, developing software based on reuse of existing libraries and frameworks has its own challenges and requires programmers to be aware of the issuesthey might face.This paper discusses common difficultiesfaced by software developers while developing complex software systems based on reusable libraries and frameworks.The issuesare described along with possible solutions and exemplified by a custom UI framework named AxeZ. AxeZ is designed for customized UI development for Android phones and is built on top of OpenGL and Bullet Physics engine.As a result, AxeZ can be consideredan instanceof successfully designed framework, which implements solutions forthe challenges discussed in this paper. It provides an example of reusable framework targeted for wide area of application in UI programming
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[pt] QUANTIFICAÇÃO IRRESTRITA E GENERALIDADE ABSOLUTA: A QUESTÃO DA POSSIBILIDADE DE UMA TEORIA SOBRE TUDO TESE / [en] UNRESTRICTED QUANTIFICATION AND ABSOLUTE GENERALITY: THE ISSUE OF THE POSSIBILITY OF A THEORY ABOUT EVERYTHINGANDRE NASCIMENTO PONTES 06 October 2015 (has links)
[pt] A presente tese tem como objetivo desenvolver uma discussão acerca das condições de possibilidade da quantificação irrestrita e existência da generalidade absoluta. O trabalho é dividido em quatro etapas. No primeiro capítulo, realizo, no âmbito da teoria dos modelos e teoria dos conjuntos, uma revisão do que chamo de semântica padrão dos quantificadores. A ideia básica é mostrar como, em tal semântica, quantificações estão associadas a domínios entendidos como conjuntos. Ao longo da tese, ficará patente que a semântica padrão impõe obstáculos intransponíveis ao tratamento formal de quantificações irrestritas. No segundo capítulo, apresento uma seleção do que considero os argumentos mais relevantes contra quantificações irrestritas e nossa capacidade de lidar formalmente com o que chamamos de generalidade absoluta. Alguns desses argumentos estão baseados em resultados tais como os paradoxos que Russell e Cantor derivaram na teoria dos conjuntos. No terceiro capítulo, apresento, de modo análogo, uma lista de argumentos agrupados em linhas de estratégias para reabilitar a quantificação irrestrita contra seus críticos. Além disso, desenvolvo uma discussão sobre os aspectos metafísicos do debate sobre o discurso a respeito da generalidade absoluta e sua correlação com argumentos por regresso ao infinito. Por fim, no quarto e último capítulo, desenvolvo um esboço geral de uma proposta alternativa de tratamento da quantificação irrestrita que apele para uma teoria paraconsistente dos conjuntos. Nela, as contradições obtidas na semântica padrão podem ser admitidas controladamente possibilitando assim a obtenção de domínios absolutos para quantificações. Essa proposta envolve a defesa de um sistema formal que seja inconsistente, porém dedutivamente não trivial. Em linhas
gerais, o presente trabalho está pautado no seguinte conjunto de teses: (i) existe uma estreita correlação entre os obstáculos impostos pela semântica padrão às quantificações irrestritas e a estrutura de argumentos por regresso ao infinito; (ii) a existência de uma generalidade absoluta é um fenômeno que se impõe às nossas mais intuitivas concepções de realidade e, portanto, não devemos descredenciar o discurso sobre tal generalidade em virtude de limitações de nossas linguagens formais; (iii) nós devemos escolher entre assumir a lógica clássica e abdicar do discurso sobre a generalidade absoluta ou manter nossa intuição mais básica descrita em (ii) e abrir espaço para um tratamento não clássico da questão; finalmente, (iv) minha sugestão no presente trabalho é que temos boas razões para nos aventurar nas paisagens descritas pelos sistemas não clássicos. / [en] In this doctoral dissertation, I tackle the issues of the conditions for the possibility of unrestricted quantification and of absolute generality. The text is framed as follows. The first chapter is devoted to reviewing what I call the standard semantics of quantifiers, within the realm of both model and set theories. In such semantics, the idea is, quantificational domains are conceived as sets. It will become clear along the way that, given this construal of quantificational domains, a formal treatment of unrestricted quantification faces insurmountable obstacles. The second chapter focuses on what I take to be the most relevant arguments against unrestricted quantification as well as against our ability to formally deal with so-called absolute generality. Some of them are based on results obtained by Russell and Cantor within set theory – the notorious Russell s paradox and Cantor s theorem. Analogously, in chapter three I review a number of grouped-into-strategic-lines arguments put forward to save unrestricted quantification against its critics. I also elaborate on the metaphysical aspects of the debate and its connections with infinite regress arguments. Lastly, in the fourth chapter I outline an alternative proposal based on paraconsistent set theory to deal with unrestricted quantification. On this approach, the contradictions found in standard semantics are admitted, yet in a controlled way, thus turning absolute quantificational domains available. The proposal is, basically, to allow the existence of inconsistent, yet deductively not trivial formal systems. The present work is broadly guided by the following set of claims: (i) there is a strong correlation between the obstacles set by standard semantics to unrestricted quantification and the structure of infinite regress arguments; (ii) absolute
generality is a phenomenon that imposes itself upon our most intuitive conceptions of reality; accordingly, the limitations suffered by our formal languages ought not to lead us to bring such generality into disrepute; (iii) one must choose between adopting classical logic and renouncing to appeal to absolute generality or sticking to our most basic intuitions as described in (ii) and make room for a non-classical treatment of the issue; (iv) we have, after all, good reasons to venture into the landscapes described by the non-classical systems.
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Absolute and relative generalityStudd, James Peter January 2013 (has links)
This thesis is concerned with the debate between absolutists and relativists about generality. Absolutists about quantification contend that we can quantify over absolutely everything; relativists deny this. The introduction motivates and elucidates the dispute. More familiar, restrictionist versions of relativism, according to which the range of quantifiers is always subject to restriction, are distinguished from the view defended in this thesis, an expansionist version of relativism, according to which the range of quantifiers is always open to expansion. The remainder of the thesis is split into three parts. Part I focuses on generality. Chapter 2 is concerned with the semantics of quantifiers. Unlike the restrictionist, the expansionist need not disagree with the absolutist about the semantics of quantifier domain restriction. It is argued that the threat of a certain form of semantic pessimism, used as an objection against restrictionism, also arises, in some cases, for absolutism, but is avoided by expansionism. Chapter 3 is primarily engaged in a defensive project, responding to a number of objections in the literature: the objection that the relativist is unable to coherently state her view, the objection that absolute generality is needed in logic and philosophy, and the objection that relativism is unable to accommodate ‘kind generalisations’. To meet these objections, suitable schematic and modal resources are introduced and relativism is given a precise formulation. Part II concerns issues in the philosophy of mathematics pertinent to the absolutism/relativism debate. Chapter 4 draws on the modal and schematic resources introduced in the previous chapter to regiment and generalise the key argument for relativism based on the set-theoretic paradoxes. Chapter 5 argues that relativism permits a natural motivation for Zermelo-Fraenkel set theory. A new, bi-modal axiomatisation of the iterative conception of set is presented. It is argued that such a theory improves on both its non-modal and modal rivals. Part III aims to meet a thus far unfulfilled explanatory burden facing expansionist relativism. The final chapter draws on principles from metasemantics to offer a positive account of how universes of discourse may be expanded, and assesses the prospects for a novel argument for relativism on this basis.
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Role of ICT in Sustainable Transportation-Focus on Reducing Traffic Congestion / Role of ICT in Sustainable Transportation-Focus on Reducing Traffic CongestionVIJAYAKUMAR, NEELKUMAR, MEHENDIRATTA, GAURAV January 2011 (has links)
Our cities have been continually growing at an uncontrolled rate leading to the problem of trafficcongestion, which has discernable effects on all the aspects of sustainability, be it social,environmental or economical. This continual shift of increasing size of centre and decreasingsize of periphery poses huge sustainability challenge of meeting the consumption demands. Wepresently face the most unprecedented times in terms of the pace at which our natural resourcesare getting consumed. It is clear that replenishing some of these resources is totally out ofquestion. On the other side of the coin, the advances of human technology have provided itsgreatest gift of information & communication technology (ICT). Today we have access to datafrom any point of the world to anywhere. There is a growing need to use this data andinformation with a holistic view to build more Intelligent Transport Systems. In our paper wediscuss how the advent of ICT can have an impact on bringing a sustainable transportationsystem. The work is divided in two folds, by first understanding the direct role of ICT intransport sustainability and then observing the direct correlation between usage of ICT andtravel demand. The problems of traffic congestion and its solutions like congestion pricing haveexisted in practice since ages; the perspective which we add to it is the role of ICT in making itbetter. The greater perspective that is being researched here is at an absolute fundamental leveland takes us to the question if and how ICT can work on root level challenges, like findingmethods to have a better traceability without compromising on privacy, changing driverbehaviour patterns and stopping the expansion of centre & contraction of periphery.
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Stretching and Its Effects on Recovery: A ReviewSands, William A., McNeal, Jeni R., Murray, Steven R., Ramsey, Michael W., Sato, Kimitake, Mizuguchi, Satoshi, Stone, Michael H. 01 October 2013 (has links)
Stretching is a commonly prescribed exercise activity that has been applied to warm-up, increasing range of motion, and recovery from training. The practitioner should understand the effects of stretching exercise and the inherent differences between types of stretching exercises and activities designed to enhance "looseness" and freedom of motion. Stretching to enhance range of motion may be contraindicated when applied to recovery should be pain-free motion within the constraints of maximum range of motion of a joint.;
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