Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2015-03-24T14:51:12Z No. of bitstreams: 2 Dissertação - Vinícius Rafael Lobo de Mendonça - 2014.pdf: 4110263 bytes, checksum: 2e2be342a6c3301f64fa41a675b85ba9 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-03-24T14:55:54Z (GMT) No. of bitstreams: 2 Dissertação - Vinícius Rafael Lobo de Mendonça - 2014.pdf: 4110263 bytes, checksum: 2e2be342a6c3301f64fa41a675b85ba9 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2015-03-24T14:55:54Z (GMT). No. of bitstreams: 2 Dissertação - Vinícius Rafael Lobo de Mendonça - 2014.pdf: 4110263 bytes, checksum: 2e2be342a6c3301f64fa41a675b85ba9 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2014-11-19 / Recommendation systems try to guide the user carrying out a task providing him with useful information about it. Considering the context of software development, programs are ever increasing, making it difficult to carry out a detailed verification of warnings generated by automatic static analyzers. In this work, we propose a recommendation system, called WarningsFIX, which aims at helping developers on handling the high number of warnings reported by automatic static analyzers. The back end of this system is composed of seven open-source static analysis tools collecting data, which subsequently are used for visualizing information through TreeMaps. The intention is to combine the outcomes of different static analyzers such that WarningsFIX recommends the analysis of warnings with highest chance to be a true positive. Therefore, the information related to warnings are displayed in four levels of detail: program, package, class, and line. The nodes may be classified in the first three levels: amount of warnings, number of tools and suspicions rate. An exploratory study was carried out and the limitations, advantages and disadvantages of the proposed approach were discussed. / O Sistema de Recomendação apoia um usuário na realização de uma tarefa. Considerando o atual contexto do desenvolvimento de software, programas estão cada vez maiores, tornando difícil a realização de uma avaliação detalhada dos avisos gerados pelos analisadores estáticos. Nesse trabalho, propõe-se um sistema de recomendação, chamado WarningsFIX, que tem objetivo de ajudar os desenvolvedores manipular o alto nível dos avisos emitidos pelos analisadores estáticos. O back end desse sistema é composto de sete ferramentas de análise estática de código aberto para coleta de dados, que são visualizados por meio de TreeMap. O objetivo é combinar os resultados de diferentes analisadores estáticos, assim recomendar a análise de avisos com alta chance de ser verdadeiro positivo. Portanto, a informações relacionadas ao nó são visualizadas em quatro níveis de visualização: programa, pacote, classe e linha. Além disso, os nós podem ser classificados em três tipos: quantidade de avisos, quantidade de ferramentas e taxa de suspeição. Um estudo exploratório foi realizado e as limitações, vantagens e desvantagens da abordagem proposta foram discutidas.

Syftet med denna uppsats är att undersöka hur tre storsäljande filmer från 2016 förhåller sig till jämställdhet. Den teoretiska utgångspunkten är forskning gällande jämställdhet, genus, kön och representation samt feministisk filmforskning. Metoden för att genomföra analysen är både en genomräkning av den könsfördelning som finns i filmerna likaså om de klarar Bechdeltestet och avslutningsvis en karaktärsanalys utifrån Jens Eders Karaktärsklockan. De filmerna som analyseras är Finding Dory, Captain America: Civil War och Ghostbusters. Resultaten av undersökningen visar på filmer som är ojämnställda utifrån en underrepresentation av olika genus och kön men till sin helhet kan de inte avfärdas som helt ojämnställda.

The thesis deals with a most topical issue which is the staff evaluation relating to the remuneration. The purpose of the thesis is to propose a staff evaluation system. The first part gives a definition of the evaluation, a detailed description of the meaning and the goals of the evaluation, the best-known methods of the evaluation and component steps leading to the implementation of the evaluation system. The research represents a proposed evaluation system which was introduced to a company. The proposal was gradually modified according to the requirements of the owners and managers. Some reactions and pieces of knowledge relating to the evaluation system were found out during the process itself. The evaluation system has been completely worked out and is prepared to be implemented. The thesis is a kind of qualitative research. The design is represented by an action research.

Although the importance of early identification and intervention of infants at risk for communication delays and disorders have been advocated and emphasized in literature, case finding and service delivery in rural areas in South Africa appears to be problematic. The implementation of early communication intervention (ECI) within public service delivery has been proposed in the past. The primary health care (PHC) package had to be considered as a possible vehicle to be utilized for the implementation of ECI functions in rural communities. Against this background the existing identification methods and referral systems, utilized in Ditsobotla sub-district, were described in the current study to determine the limitations in case finding, and the feasibility of the implementation of ECI functions in collaboration with other PHC programmes. A descriptive dominant-less-dominant model provided the design to describe the identification process and teamwork in Ditsobotla sub-district. Data triangulation was utilized to improve reliability and validity of results which entailed a rating scale, face-to-face interviews with PHC personnel (participants in Group 1) and face-to-face interviews with PHC programme managers (participants in group 2). The results indicated that the capacity of facilities and human resources to support the implementation of ECI functions vary within the sub-district. Therefore an incremental implementation of ECI functions is feasible in collaboration with the existing PHC package. The current identification methods and referral systems are limited and a great need for collaboration exists. ECI functions need to be implemented formally within the PHC package and guidelines for such an implementation are provided. Furthermore the identification process to be introduced needs to form part of the incremental implementation of ECI functions. The implications are discussed in terms of ECI service delivery in rural South Africa. The proposed process of incremental implementation of ECI functions in rural areas, i.e. Ditsobotla sub-district, within the PHC package is provided. The need to develop identification methods, referral systems and guidelines for the implementation of ECI in PHC are emphasized. Future practice-based research is recommended in order to improve ECI service delivery in rural areas in South Africa. Copyright / Dissertation (MCommunication Pathology)--University of Pretoria, 2009. / Speech-Language Pathology and Audiology / Unrestricted

Study of complex networks by researchers from many disciplines has provided penetrating insights on various complex systems. A study of the world wide web from a network theoretic perspective has led to the design of new search engines [65]. The spread of diseases is now better understood by analyzing the underlying social network [26]. The study of metabolic networks, protein-protein interaction networks and the transcriptional regulatory networks with graph theoretic rigor, has led to the growing importance of an interdisciplinary approach [71]. Network centrality measures, which has been of interest to the social scientists, from as long as 1950 [13], is today studied extensively in the framework of complex networks. The thesis is an investigation on understanding human navigation with a network analytic approach using the well established and widely used centrality measures. Experiments were conducted on human participants to observe how people navigate in a complex environment. We made human participants way-find a destination from a source on a complex network and analyzed the paths that were taken. Our analysis established a fact that the learning process involved in navigating better in an unknown network boils down to learning certain strategic locations on the network. The vertices in the paths taken by the participants, when analyzed using the available centrality measures, enabled us to conclude experimentally that humans are naturally inclined to learn superior ranked vertices to navigate better and reach their intended destination. Our experiments were based on a word game called the word-morph. A generalized version of the experiment was conducted on a 6x6 photo collage with an underlying network hidden from the participant. A detailed analysis of the above experiment established a fact that, when humans are asked to take a goal-directed path, they were prone to take a path that passed through landmark nodes in the network. We call such paths center-strategic. We then present an algorithm that simulates the navigational strategy adopted by humans. We show empirically that the algorithm performs better than naive random walk based navigational techniques. We observe that the algorithm produces rich center-strategic paths on scale-free networks. We note that the effectiveness of the algorithm is highly dependent on the topology of the network by comparing its functionality on Erdos-Renyi networks and Barabasi-Albert networks. Then we discuss a lookahead algorithm to compute betweenness centrality in networks under vertex deletion operations. We show that the widely used Brandes algorithm can be modified to a lookahead version. We show that our proposed algorithm performs better than recomputing the betweenness centrality values in the vertex deleted graph. We show that our method works 20% faster than the Brandes algorithm.

Made available in DSpace on 2017-06-01T17:57:21Z (GMT). No. of bitstreams: 1 Marcos Holanda_Diss.pdf: 1903157 bytes, checksum: 12aff14850e97e4c1b0c835c68b68342 (MD5) Previous issue date: 2007-04-25 / Brazil: a water country. This thought could take the people to forget about water conservation. Although Brazil has big watersheds, it also has regions that present serious water supply crisis. The amazon region, with only 5% of brazilian population, stores 80% of water volume of all national territory, while greater part of the population is concentrated in the big cities, needing, at times, a higher volume of water. The individual measurement in residential buildings is one of the most important ways to prevent water lavishness, also to control and to reduce the water consumption. This work tries to show the individual measurement of water as a fair system of price, which permits the control and the reduction on the water consumption. In the firs part, three buildings that had changed from global measurement system to individual measurement system were studied. By these cases, it was possible to show, in the buildings, the distribution of the apartments in classes of consumption, the percentage reduction and the economic feasibility to perform the modification in the measurement system. The second part of this work was to follow a telemetric measurement system in a residential building with individual water meters. The telemetric measurement allowed to know the profile of each consumer, individually, as an important way to plan actions to control and to reduce the water consumption. / Brasil, país das águas. Este é um pensamento que pode levar a uma despreocupação quanto à conservação da água. Sim, o Brasil possui grandes bacias hidrográficas, mas, por outro lado, possui também regiões que apresentam graves crises de abastecimento. A região amazônica, com apenas 5% da população brasileira, armazena 80% do volume de água de todo o território nacional, enquanto grande parte da população concentra-se nas grandes cidades, exigindo um volume de água cada vez maior. A medição individualizada em edifícios residenciais apresenta-se como um dos meios importantes para combater o desperdício, controlar e reduzir o consumo de água. Este trabalho procura mostrar a medição individualizada como um sistema justo que permite o controle e a redução de água. Numa primeira etapa, foram estudados três edifícios que sofreram reforma, passando do sistema com medição global para o sistema com medição individualizada. Através destes três estudos de casos, foi possível mostrar a distribuição dos apartamentos em classes de consumo, a redução percentual do consumo do edifício e a viabilidade econômica para a execução da reforma. A segunda etapa deste trabalho, compreendeu o acompanhamento da medição por telemetria, associada à medição individualizada, em um edifício residencial. A medição por telemetria permitiu o traçado do perfil de cada consumidor, individualmente, funcionando como uma ferramenta importante para o planejamento de ações que visem ao controle e a redução do consumo de água.

Målet med den här datorbaserade filosofiska utredningen inom kognitionsvetenskap är att utforska intentionalitet i kollektiva beteenden hos artificiella svärmar. Två definitioner av intentionalitet utforskades; som representationer hos agenter och som observerbara attribut hos agenter, även kallat intentional stance. För den representativa definitionen användes en modell av kollektiv intentionalitet som integrerar två olika ståndpunkter, singularståndpunkten och pluralståndpunkten av kollektiv intentionalitet. Modellen har fem villkor för intentionalitet enligt SharedPlans. Genom att använda Belief-Desire-Intention-modellen för intelligenta agenter operationaliserades villkoren till möjliga representationer. En implementation av en målinriktad artificiell svärm i NetLogo analyserades genom att studera hur väl den uppfyllde de operationaliserade villkoren. Fyra av fem villkor var uppfyllda. Flera simuleringar med olika hastighet genomfördes även under observation. Dessa visade att processen kunde delas upp i tre faser med olika egenskaper. Den utforskande fasen hade gemensam intentionalitet centrerad till ett fåtal aktiva individer. Beslutsfasen hade individuella intentioner som kunde stå i konflikt med varandra medan gemensamma intentioner strävade mot samma mål. I flyttfasen var de individuella intentionerna att förhålla sig till varandra, vilket fick gruppen att upplevas som en enhet med intentionen att flytta gruppen. Resultaten visade att intentionalitet kan observeras och analyseras hos den här artificiella svärmen. Däremot har svärmen inte kollektiv intentionalitet utifrån båda ståndpunkterna.

Les Phases I sont un domaine des essais cliniques dans lequel les statisticiens ont encore beaucoup à apporter. Depuis trente ans, ce secteur bénéficie d'un intérêt croissant et de nombreuses méthodes ont été proposées pour gérer l'allocation séquentielle des doses aux patients intégrés à l'étude. Durant cette Phase, il s'agit d'évaluer la toxicité, et s'adressant à des patients gravement atteints, il s'agit de maximiser les effets curatifs du traitement dont les retours toxiques sont une conséquence. Parmi une gamme de doses, on cherche à déterminer celle dont la probabilité de toxicité est la plus proche d'un seuil souhaité et fixé par les praticiens cliniques. Cette dose est appelée la MTD (maximum tolerated dose). La situation canonique dans laquelle sont introduites la plupart des méthodes consiste en une gamme de doses finie et ordonnée par probabilité de toxicité croissante. Dans cette thèse, on introduit une modélisation très générale du problème, la SPM (semi-parametric methods), qui recouvre une large classe de méthodes. Cela permet d'aborder des questions transversales aux Phases I. Quels sont les différents comportements asymptotiques souhaitables? La MTD peut-elle être localisée? Comment et dans quelles circonstances? Différentes paramétrisations de la SPM sont proposées et testées par simulations. Les performances obtenues sont comparables, voir supérieures à celles des méthodes les plus éprouvées. Les résultats théoriques sont étendus au cas spécifique de l'ordre partiel. La modélisation de la SPM repose sur un traitement hiérarchique inférentiel de modèles satisfaisant des contraintes linéaires de paramètres inconnus. Les aspects théoriques de cette structure sont décrits dans le cas de lois à supports discrets. Dans cette circonstance, de vastes ensembles de lois peuvent aisément être considérés, cela permettant d'éviter les cas de mauvaises spécifications. / Phase I clinical trials is an area in which statisticians have much to contribute. For over 30 years, this field has benefited from increasing interest on the part of statisticians and clinicians alike and several methods have been proposed to manage the sequential inclusion of patients to a study. The main purpose is to evaluate the occurrence of dose limiting toxicities for a selected group of patients with, typically, life threatening disease. The goal is to maximize the potential for therapeutic success in a situation where toxic side effects are inevitable and increase with increasing dose. From a range of given doses, we aim to determine the dose with a rate of toxicity as close as possible to some threshold chosen by the investigators. This dose is called the MTD (maximum tolerated dose). The standard situation is where we have a finite range of doses ordered with respect to the probability of toxicity at each dose. In this thesis we introduce a very general approach to modeling the problem - SPM (semi-parametric methods) - and these include a large class of methods. The viewpoint of SPM allows us to see things in, arguably, more relevant terms and to provide answers to questions such as asymptotic behavior. What kind of behavior should we be aiming for? For instance, can we consistently estimate the MTD? How, and under which conditions? Different parametrizations of SPM are considered and studied theoretically and via simulations. The obtained performances are comparable, and often better, to those of currently established methods. We extend the findings to the case of partial ordering in which more than one drug is under study and we do not necessarily know how all drug pairs are ordered. The SPM model structure leans on a hierarchical set-up whereby certain parameters are linearly constrained. The theoretical aspects of this structure are outlined for the case of distributions with discrete support. In this setting the great majority of laws can be easily considered and this enables us to avoid over restrictive specifications than can results in poor behavior.

In den letzten Jahren ist nicht nur in der Forschung, sondern auch in der breiten Öffentlichkeit die akute Problematik der männlichen Identitätsfindung beziehungsweise Identitätskonstruktion unübersehbar geworden. Medial schlug sich dies allein im Januar und Februar 2008 in entsprechenden Leitartikeln sowohl im SPIEGEL als auch in der ZEIT nieder und lebensweltlich nimmt die Anzahl der von männlichen Jugendlichen ausgehenden Gewalttaten unvermindert zu. Ein Verweis auf die durch die Medien gegangenen U-Bahn-Attacken (München) mag hier genauso genügen wie die Erinnerung an die gewalttätigen Zwischenfälle an der Columbine High School, der Virginia Tech University, der Northern Illinois University (DeKalb), der Berliner Rütli Schule, dem Erfurter Gutenberg Gymnasium oder der Jokela Schule in Tuusula, Finnland.

The new Bluetooth standard (Bluetooth 5.1) contains direction finding specifications. Specifications for received signal strength indicator(RSSI) using measures of signal strength in order to give a sense of how far away an object is has been present in earlier versions. It will now be accompanied with the possibility of angle of arrival estimation(AoA). AoA estimation in Bluetooth utilizes antenna arrays. Antenna arrays are formations of many individual antenna elements working together. The difference between the measured data at each antenna is dependent on the orientation and position of the antenna elements as well as on phase of an incoming electromagnetic signal. By looking at the phase shifts between the antenna elements in an antenna array it is possible to find an estimation of the direction of where the incoming signal is coming from.  The goal of this thesis is to investigate if the NicheTM antenna(concept developed by Proant AB) is applicable for AoA estimation. In the project we have simulated the different characteristics of the Niche antenna and done extensive simulations of different types of configurations of an Niche antenna array. The commercial electromagnetics simulator CST MW studio suite has been used for simulations. A formation that works well with regards to stability and mutual coupling has been found. The simulated results have also been confirmed by measurements on a mechanically constructed antenna array. Measurements have been carried out in an anechoic chamber. We have done full radiation pattern measurements of the antenna array. The antenna array that we have created can estimate the angle of arrival of an incoming signal with an accuracy of 2.7o with a certainty of one standard deviation. For increased accuracy in the AoA estimation a MATLAB code utilizing the MUSIC(MUltiple SIgnal Classification) algorithm with our variant of the steering vector has been written.