Tools and environments have aided developers in producing software since compilers and editors became standard offerings with operating systems. A major challenge for the tools and environments community has been to find ways to build and integrate tools so that they, or capabilities between them, can be easily adapted for use in new contexts. The "Eclipse" Project is an open source software development project dedicated to providing a robust, full-featured, commercial-quality, industry platform for the development of highly integrated tools. The mission of the "Eclipse" Project is to adapt and evolve the eclipse technology to meet the needs of the eclipse tool building community and its users, so that the vision of eclipse as an industry platform is realized. "Eclipse" uses an innovative plug-in architecture allowing near-infinite extensions to the base IDE. Unlike other opensource projects that don't allow proprietary derivative works, "Eclipse" can be extended with proprietary plug-ins, repackaged, and sold commercially. Aspect-Oriented programming (AOP) is a new programming paradigm based on the idea that computer systems are better programmed by separately specifying the various concerns of a system and some description of their relationships, and then relying on mechanisms in the underlying AOP environment to weave or compose them together into a coherent program. While the tendency in Object-Oriented Programming is to find commonality among classes and push it up in the inheritance tree, AOP attempts to realize scattered concerns as first-class elements, and eject them horizontally from the object structure. The primary goals of this research were 1. Incorporation of "Component Pascal" into "Eclipse". "Component Pascal"was a command line compiler that is targeted to a variety of platforms including JVM and.NET. 2. Research and design visual programming tools for "Component Pascal" in "Eclipse", in particular visual tools that support aspect-oriented views of software. These objectives are now complete and a plug-in has been developed that enables the development of "Component Pascal" software within "Eclipse". Aspect-Orientation has been incorporated directly into the "Component Pascal" compiler.

Thesis (Ph. D.)--University of Oregon, 2008. / Typescript. Includes vita and abstract. Includes bibliographical references (leaves 123-127). Also available online in ProQuest, free to University of Oregon users.

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Modern computer vision has seen recently significant progress in learning visual concepts from examples. This progress has been fuelled by recent models of visual appearance as well as recently collected large-scale datasets of manually annotated still images. Video is a promising alternative, as it inherently contains much richer information compared to still images. For instance, in video we can observe an object move which allows us to differentiate it from its surroundings, or we can observe a smooth transition between different viewpoints of the same object instance. This richness in information allows us to effectively tackle tasks that would otherwise be very difficult if we only considered still images, or even adress tasks that are video-specific. Our first contribution is a computationally efficient technique for video object segmentation. Our method relies solely on motion in order to rapidly create a rough initial estimate of the foreground object. This rough initial estimate is then refined through an energy formulation to be spatio-temporally smooth. The method is able to handle rapidly moving backgrounds and objects, as well as non-rigid deformations and articulations without having prior knowledge about the objects appearance, size or location. In addition to this class-agnostic method, we present a class-specific method that incorporates additional class-specific appearance cues when the class of the foreground object is known in advance (e.g. a video of a car). For our second contribution, we propose a novel model for temporal video alignment with regard to the viewpoint of the foreground object (i.e., a pair of aligned frames shows the same object viewpoint) Our work relies on our video object segmentation technique to automatically localise the foreground objects and extract appearance measurements solely from them instead of the background. Our model is able to temporally align realistic videos, where events may occur in a different order, or occur only in one of the videos. This is in contrast to previous works that typically assume that the videos show a scripted sequence of events and can simply be aligned by stretching or compressing one of the videos. As a final contribution, we once again use our video object segmentation technique as a basis for automatic visual aspect discovery from videos of an object class. Compared to previous works, we use a broader definition of an aspect that considers four factors of variation: viewpoint, articulated pose, occlusions and cropping by the image border. We pose the aspect discovery task as a clustering problem and provide an extensive experimental exploration on the benefits of object segmentation for this task.

Revisión por pares

In this dissertation, I study the distribution of number in Azeri within the Exo- Skeletal model of Borer (2005a). I adopt the Exo-Skeletal model's assumption that number marking is a syntactic rather than a lexical process. Following Borer (2005a), I assume that, in order to be counted, nouns need to be individuated by means of a functional category Div. In Borer's model, plural markers and classifiers are argued to be generated in DivP. However, unlike Borer, I propose that the plural marker in Azeri is not an individuator. Instead, it solely marks plurality. Under my proposal, individuation in Azeri is morphologically null. Moreover, I argue that classifiers do not belong to the category of individuators either and their function is to unitize the individuated object. Therefore, I consider classifiers in Azeri to be generated on a cluster head where they contribute to a group formation process. The generation of the plural marker and the classifier on heads other than division derives the conclusion that the individuation in Azeri is morphologically null. Furthermore, I investigate the interpretation of number in the verbal domain, i.e. in TP, in the presence of the viewpoint aspect in both telic and atelic contexts. I argue that the singular interpretation of the Azeri bare noun is linked to the projection of AspQ, where the specific interpretation of the bare noun arises under the effect of the perfective aspect. The presence of AspQ yields a telic interpretation of the event structure, and the DP in the specifier of AspQ is the subject of quantity (Borer, 2005a). Moreover, according to Borer, number ambiguous nouns are generated in atelic structures where AspQ is absent. In this case, the DP does not have to be the subject of quantity and the availability of quantity on the DP remains optional. Nevertheless, (non-)specific interpretation of the noun in telic and atelic contexts in Azeri, I argue to be due to the impact of the viewpoint aspect.

Made available in DSpace on 2014-06-12T15:54:11Z (GMT). No. of bitstreams: 2 arquivo1967_1.pdf: 2290024 bytes, checksum: c02392abf0809cdb2a823828412d659c (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2008 / Conselho Nacional de Desenvolvimento Científico e Tecnológico / Linhas de Produtos de Software (LPS) são conjuntos de sistemas de software que compartilham uma base comum de funcionalidades e satisfazem a necessidades especificas de determinados segmentos de mercado. LPS são desenvolvidas a partir de uma arquitetura comum e compartilham um conjunto de artefatos reusaveis (projetados para um dominio de aplicacão especifico). Entre as atividades principais na construcão e manutencão de uma LPS esta a gerência das variacões nos diversos artefatos que a compõem. Em particular, a escolha de tecnicas de programacão que possibilitem a introducão de variacões em artefatos de implementacão e uma atividade que merece bastante atencão. A escolha de qual tecnica utilizar para lidar com determinados tipos de variacões nos artefatos de implementacão de uma LPS pode gerar impactos significativos tanto na qualidade desses artefatos como na qualidade dos produtos finais gerados. Apesar da importância dessa atividade, poucos estudos publicados mostram comparacões entre as diversas tecnicas que permitem a implementacão de variacões em software. A maioria dos trabalhos existentes limita-se a avaliacões qualitativas dessas tecnicas, não analisando o impacto dessas tecnicas nos atributos de qualidade de LPS existentes atraves de metricas de software. O foco do presente trabalho e a comparacão entre algumas das tecnicas de implementa cão de variacões usadas na industria de software. Para tal, primeiro apresentamos um catalogo de tipos de variacões, onde variacões são classificadas de acordo com a sua estrutura e localizacão no codigo da aplicacão. As variacões apresentadas no catalogo foram identificadas atraves de uma analise realizada em uma LPS do dominio de jogos para dispositivos moveis. Em seguida, apresentamos propostas de solucão que utilizam algumas das principais tecnicas de programacão para lidar com cada tipo de variacão espec ico. Como parte desse trabalho, analisamos o impacto da utilizacão de cada solução proposta atraves de dados qualitativos e quantitativos. Analisamos ainda a composicão do uso dessas solucões para implementar variacões em LPS e como um catalogo de tipos reestruturacão de variacões em uma LPS.

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