919 resultados para information control


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In this paper a look is taken at how the use of implant technology can be used to either increase the range of the abilities of a human and/or diminish the effects of a neural illness, such as Parkinson's Disease. The key element is the need for a clear interface linking the human brain directly with a computer. The area of interest here is the use of implant technology, particularly where a connection is made between technology and the human brain and/or nervous system. Pilot tests and experimentation are invariably carried out apriori to investigate the eventual possibilities before human subjects are themselves involved. Some of the more pertinent animal studies are discussed here. The paper goes on to describe human experimentation, in particular that carried out by the author himself, which led to him receiving a neural implant which linked his nervous system bi-directionally with the internet. With this in place neural signals were transmitted to various technological devices to directly control them. In particular, feedback to the brain was obtained from the fingertips of a robot hand and ultrasonic (extra) sensory input. A view is taken as to the prospects for the future, both in the near term as a therapeutic device and in the long term as a form of enhancement.

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Publicado em "Information control in manufacturing 1998 : (INCOM'98) : advances in industrial engineering : a proceedings volume from the 9th IFAC Symposium, Nancy-Metz, France, 24-26 June 1998. Vol. 2"

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Multi-agent systems have been adopted to build intelligent environment in recent years. It was claimed that energy efficiency and occupants' comfort were the most important factors for evaluating the performance of modem work environment, and multi-agent systems presented a viable solution to handling the complexity of dynamic building environment. While previous research has made significant advance in some aspects, the proposed systems or models were often not applicable in a "shared environment". This paper introduces an ongoing project on multi-agent for building control, which aims to achieve both energy efficiency and occupants' comfort in a shared environment.

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A organização automática de mensagens de correio electrónico é um desafio actual na área da aprendizagem automática. O número excessivo de mensagens afecta cada vez mais utilizadores, especialmente os que usam o correio electrónico como ferramenta de comunicação e trabalho. Esta tese aborda o problema da organização automática de mensagens de correio electrónico propondo uma solução que tem como objectivo a etiquetagem automática de mensagens. A etiquetagem automática é feita com recurso às pastas de correio electrónico anteriormente criadas pelos utilizadores, tratando-as como etiquetas, e à sugestão de múltiplas etiquetas para cada mensagem (top-N). São estudadas várias técnicas de aprendizagem e os vários campos que compõe uma mensagem de correio electrónico são analisados de forma a determinar a sua adequação como elementos de classificação. O foco deste trabalho recai sobre os campos textuais (o assunto e o corpo das mensagens), estudando-se diferentes formas de representação, selecção de características e algoritmos de classificação. É ainda efectuada a avaliação dos campos de participantes através de algoritmos de classificação que os representam usando o modelo vectorial ou como um grafo. Os vários campos são combinados para classificação utilizando a técnica de combinação de classificadores Votação por Maioria. Os testes são efectuados com um subconjunto de mensagens de correio electrónico da Enron e um conjunto de dados privados disponibilizados pelo Institute for Systems and Technologies of Information, Control and Communication (INSTICC). Estes conjuntos são analisados de forma a perceber as características dos dados. A avaliação do sistema é realizada através da percentagem de acerto dos classificadores. Os resultados obtidos apresentam melhorias significativas em comparação com os trabalhos relacionados.

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One of the goals in the field of Music Information Retrieval is to obtain a measure of similarity between two musical recordings. Such a measure is at the core of automatic classification, query, and retrieval systems, which have become a necessity due to the ever increasing availability and size of musical databases. This paper proposes a method for calculating a similarity distance between two music signals. The method extracts a set of features from the audio recordings, models the features, and determines the distance between models. While further work is needed, preliminary results show that the proposed method has the potential to be used as a similarity measure for musical signals.

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The Bologna Process aimed to build a European Higher Education Area with the objective of promoting students mobility. The adoption of Bologna Declaration directives requires a decentralized approach that accelerates student's mobility, based on frequently updated legislation. This paper proposes a student personal system to manage student's academic information. This system is supported by a flexible model that integrates, for instance, knowledge about the student attended courses or about a course that the student wishes to apply. Essentially, this model holds a (i) Student's Academic Record with skills acquired in academic course units, professional experience or training and an (ii) Individual Studies Plan, which places the student in a particular (iii) Course Plan setting the curricular structure that the student wishes to apply.

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Magnetic resonance (MR) imaging has been used to analyse and evaluate the vocal tract shape through different techniques and with promising results in several fields. Our purpose is to demonstrate the relevance of MR and image processing for the vocal tract study. The extraction of contours of the air cavities allowed the set - up of a number of 3D reconstruction image stacks by means of the combination of orthogonally oriented sets of slices for e ach articulatory gesture, as a new approach to solve the expected spatial under sampling of the imaging process. In result these models give improved information for the visualization of morphologic and anatomical aspects and are useful for partial measure ments of the vocal tract shape in different situations. Potential use can be found in Medical and therapeutic applications as well as in acoustic articulatory speech modelling.

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Trabalho de Projecto apresentado ao Instituto de Contabilidade e Administração do Porto para a obtenção do grau de Mestre em Auditoria, sob orientação do Professor Luís Rodrigues (Doutor)

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��Report: Background�� Chronic insomnia is a common health problemwith substantial consequences in older adults. Cognitive behavioraltreatments are efficacious but not widely available. The aimof this study was to test the efficacy of brief behavioral treatmentfor insomnia (BBTI) vs an information control (IC) condition.��Methods�� A total of 79 older adults (mean age, 71.7 years;54 women [70%]) with chronic insomnia and common comorbiditieswere recruited from the community and 1 primary care clinic.Participants were randomly assigned to either BBTI, consistingof individualized behavioral instructions delivered in 2 interventionsessions and 2 telephone calls, or IC, consisting of printededucational material. Both interventions were delivered by anurse clinician. The primary outcome was categorically definedtreatment response at 4 weeks, based on sleep questionnairesand diaries. Secondary outcomes included self-report symptomand health measures, sleep diaries, actigraphy, and polysomnography.��Conclusion�� We found that BBTI is a simple, efficacious,and durable intervention for chronic insomnia in older adultsthat has potential for dissemination across medical settings.����������

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Tutkielman tavoitteena on analysoida, miten asiakkuuksien arvoa voidaan johtaa ja miten asiakkuusarvojohtamista voidaan tukea asiakkuusraportoinnin avulla. Teoriaosuudessa analysoidaan asiakaskannattavuuden muodostumista, sekä asiakkuusarvojohtamiseen liittyvää asiakkuusstrategiaa ja raportointiin liittyvää asiakastiedon hallintaa. Empiirinen aineisto pohjautuu case-yrityksen asiakkuusprojektiin, jonka tarkoituksena on tunnistaa erilaiset asiakkuudet ja kehittää niitä siten, että kannattavuus paranisi asiakkaan prosessin ymmärtämisen ja tukemisen kautta. Asiakkuus-raportointi on tärkeä seurannan väline asiakkuusarvojohtamisessa ja se vaatii raportoinnilta luotettavuutta, henkilöstön hyväksyntää käytettävistä kannattavuuslaskentamenetelmistä sekä suhteellisten muutosten ja trendien esittämistä, jotta muutokseen voitaisiin reagoida nopeasti.

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Julkinen terveydenhuollon toimintaympäristö on muuttumassa. Terveydenhuollon käytettävissä olevat resurssit ovat heikkenemässä yleisen taloudellisen tilanteen ja väestön ikääntymisen johdosta. Terveydenhuollon palvelurakenteita ollaan uudistamassa. Merkittävien päätösten perusteiksi ja organisaatioiden johtamisen tueksi tarvitaan tietoa ja tietovirtoja. Tutkimus toteutettiin kvalitatiivisena tutkimuksena, jonka empiirinen osuus toteutettiin erikoissairaanhoidon palveluita tuottavassa keskussairaalassa. Haastatteluaineisto kerättiin sairaalan ylimmästä johdosta. Tutkimuksen mukaan informaatio-ohjaukseen, asiantuntijoiden johtamiseen ja palvelutuotannon vaikuttavuuteen liittyvät tietovirrat ovat alueellisen terveydenhuollon organisaation keskeisiä tietovirtoja.

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In this paper we present the novel concepts incorporated in a planetary surface exploration rover design that is currently under development. The Multitasking Rover (MTR) aims to demonstrate functionality that will cover many of the current and future needs such as rough-terrain mobility, modularity and upgradeability. The rover system has enhanced mobility characteristics. It operates in conjunction with Science Packs (SPs) and Tool Packs (TPs)-modules attached to the main frame of the rover, which are either special tools or science instruments and alter the operation capabilities of the system.

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Networked Robotics is an area that straddles robotics and network technology. A robot system controlled via the WWW exploits the Internet network and hence is one realisation of networked robotics. A set of field robots that exploit wireless networks to share and distribute tasks might also be considered an exemplar of networked robotics. But isn't this just an exemplar of distributed robotics? And if so, what does networked robotics bring to the 'robotics' table? These are questions and issues addressed in this paper. The paper will propose that networks are at once both enabling and constraining to robotics. They enlarge the scope of the robotics discipline yet introduce challenges that must be overcome if that potential is to be fully realized. In short, when the network becomes a design issue - normally when performance of the system is at a premium - networked robotics is at play.

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This paper proposes a conceptual model of a context-aware group support system (GSS) to assist local council employees to perform collaborative tasks in conjunction with inter- and intra-organisational stakeholders. Most discussions about e-government focus on the use of ICT to improve the relationship between government and citizen, not on the relationship between government and employees. This paper seeks to expose the unique culture of UK local councils and to show how a GSS could support local government employer and employee needs.

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Hollandite-type manganese oxides are nanofibrous crystals with sub-nanometer open tunnels that provide a unique property for sensing applications. Sensor based on hollandite-type manganese oxide was investigated for amperometric detection of potassium. With an operating potential of +0.63 V versus SCE, potassium ions produce oxidation currents at the sensor, which can be exploited for quantitative determinations. The amperometric signals are linearly proportional to potassium ions concentration in the range 2.7 x 10(-4) to 9.1 x 10(-4) Mol l(-1) with a correlation coefficient of 0.9990. The construction and renewal are simple and inexpensive.