This research investigates the complexities of artistic authorship under the production conditions of the web. It is driven by a fascination with the possibilities of expanding the authorial sphere of the artwork to include the productive capacities of other subjectivities, entities and processes. I offer the neologism ‘extra-subjectivity’ to reflect on this emerging form of production, in which the ultimate manifestation of the artwork often exceeds the author’s intentions. As well as the written thesis, it comprises seven artworks that represent a distinctive approach characterized by playfulness, humour and the use of generative computational processes. Several early works explore my authorial agency in relation to algorithmically generated variations of texts, including William Blake’s poem The Fly and the song Puff the Magic Dragon. Later, algorithmic generation is combined with the appropriation of content shared on social media, as in Infinite Violets, which displays variations of a Shakespearean verse along with images from Flickr. I draw on digital sociological methods to create a hybrid approach in which the web is understood as an evolving medium made up of digital objects and devices that can be repurposed for art practice. This approach underpins 'Flickr Nude or Noodle Descending a Staircase', which uses images programmatically accessed through Flickr’s application programming interface to remake a Marcel Duchamp painting for the web. 'Selfie Portrait' displays Instagram photographs tagged with ‘Selfie’ alongside users’ biographical information, which drives the ‘Copyright Episode’, an extended account of the legal contexts surrounding web-based art practices. Here, I demonstrate how such practices are entangled socially, ethically and legally with the distinct production conditions of the web. I argue that authorship is a question of responsibility as well as ‘ownership’, which is why ethics are as important as the law.

Tse, Kai Shun Scottie. / "December 2010." / Thesis (M.Phil.)--Chinese University of Hong Kong, 2011. / Includes bibliographical references (p. 52-54). / Abstracts in English and Chinese. / Abstract --- p.ii / Acknowledgements --- p.iii / List of Figures --- p.vi / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Web 2.0 --- p.2 / Chapter 1.2 --- Research Motivation --- p.2 / Chapter 2 --- Background Study on Web Attacks --- p.4 / Chapter 2.1 --- Cross Site Scripting (XSS) --- p.5 / Chapter 2.2 --- Cross Channel Scripting (XCS) --- p.6 / Chapter 2.3 --- Cross Site Request Forgery (CSRF) --- p.6 / Chapter 2.4 --- Click Jacking --- p.7 / Chapter 2.5 --- Extension and plugins vulnerabilities --- p.8 / Chapter 2.6 --- Privacy Issue --- p.10 / Chapter 2.7 --- Network security --- p.12 / Chapter 2.8 --- Developer implementation flaw --- p.13 / Chapter 2.9 --- Chapter Summary --- p.15 / Chapter 3 --- Defenses on Web Attacks --- p.17 / Chapter 3.1 --- Same Origin Policy --- p.17 / Chapter 3.2 --- Filtering mechanism --- p.18 / Chapter 3.2.1 --- Client-side filtering --- p.18 / Chapter 3.2.2 --- Server-side filtering --- p.19 / Chapter 3.3 --- XSS Defenses --- p.20 / Chapter 3.4 --- CSRF Defenses --- p.22 / Chapter 3.5 --- Browser warnings --- p.23 / Chapter 3.6 --- Chapter Summary --- p.24 / Chapter 4 --- On web communication --- p.26 / Chapter 4.1 --- On cross domain communication --- p.26 / Chapter 4.1.1 --- HTML5 --- p.26 / Chapter 4.1.2 --- Flash 10 --- p.28 / Chapter 4.1.3 --- Extended studys crossdomain.xml of Flash --- p.29 / Chapter 4.2 --- On cross frame communication --- p.32 / Chapter 4.3 --- Trusted Notification System --- p.35 / Chapter 4.3.1 --- Assumptions --- p.35 / Chapter 4.3.2 --- Implementation Issues --- p.35 / Chapter 4.3.3 --- Information flow --- p.37 / Chapter 4.3.4 --- Features --- p.38 / Chapter 4.3.4.1 --- Counter fake --- p.38 / Chapter 4.3.4.2 --- Plug and play --- p.38 / Chapter 4.3.4.3 --- Mitigate future attacks --- p.39 / Chapter 4.3.4.4 --- Session persist after logout --- p.39 / Chapter 4.3.4.5 --- Follow the standards --- p.40 / Chapter 4.3.5 --- Related works --- p.40 / Chapter 4.4 --- Chapter Summary --- p.41 / Chapter 5 --- Conclusion --- p.43 / Chapter 5.1 --- Contributions --- p.43 / Chapter 5.2 --- Discussions and future work --- p.44 / Chapter A --- Non-persistent XSS attack on Horde --- p.45 / Chapter B --- Data tampering attack on facebook application --- p.50 / Bibliography --- p.52

Wong Tak Lam. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2003. / Includes bibliographical references (leaves 88-94). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Wrapper Induction for Semi-structured Web Documents --- p.1 / Chapter 1.2 --- Adapting Wrappers to Unseen Web Sites --- p.6 / Chapter 1.3 --- Thesis Contributions --- p.7 / Chapter 1.4 --- Thesis Organization --- p.8 / Chapter 2 --- Related Work --- p.10 / Chapter 2.1 --- Related Work on Wrapper Induction --- p.10 / Chapter 2.2 --- Related Work on Wrapper Adaptation --- p.16 / Chapter 3 --- Automatic Construction of Hierarchical Wrappers --- p.20 / Chapter 3.1 --- Hierarchical Record Structure Inference --- p.22 / Chapter 3.2 --- Extraction Rule Induction --- p.30 / Chapter 3.3 --- Applying Hierarchical Wrappers --- p.38 / Chapter 4 --- Experimental Results for Wrapper Induction --- p.40 / Chapter 5 --- Adaptation of Wrappers for Unseen Web Sites --- p.52 / Chapter 5.1 --- Problem Definition --- p.52 / Chapter 5.2 --- Overview of Wrapper Adaptation Framework --- p.55 / Chapter 5.3 --- Potential Training Example Candidate Identification --- p.58 / Chapter 5.3.1 --- Useful Text Fragments --- p.58 / Chapter 5.3.2 --- Training Example Generation from the Unseen Web Site --- p.60 / Chapter 5.3.3 --- Modified Nearest Neighbour Classification --- p.63 / Chapter 5.4 --- Machine Annotated Training Example Discovery and New Wrap- per Learning --- p.64 / Chapter 5.4.1 --- Text Fragment Classification --- p.64 / Chapter 5.4.2 --- New Wrapper Learning --- p.69 / Chapter 6 --- Case Study and Experimental Results for Wrapper Adapta- tion --- p.71 / Chapter 6.1 --- Case Study on Wrapper Adaptation --- p.71 / Chapter 6.2 --- Experimental Results --- p.73 / Chapter 6.2.1 --- Book Domain --- p.74 / Chapter 6.2.2 --- Consumer Electronic Appliance Domain --- p.79 / Chapter 7 --- Conclusions and Future Work --- p.83 / Bibliography --- p.88 / Chapter A --- Detailed Performance of Wrapper Induction for Book Do- main --- p.95 / Chapter B --- Detailed Performance of Wrapper Induction for Consumer Electronic Appliance Domain --- p.99

Este trabalho é dedicado ao estudo e à aplicação da mineração de regras de associação a fim de descobrir padrões de navegação no ambiente Web. As regras de associação são padrões descritivos que representam a probabilidade de um conjunto de itens aparecer em uma transação visto que outro conjunto está presente. Dentre as possibilidades de aplicação da mineração de dados na Web, a mineração do seu uso consiste na extração de regras e padrões que descrevam o perfil dos visitantes aos sites e o seu comportamento navegacional. Neste contexto, alguns trabalhos já foram propostos, contudo diversos pontos foram deixados em aberto por seus autores. O objetivo principal deste trabalho é a apresentação de um modelo para a extração de regras de associação aplicado ao uso da Web. Este modelo, denominado Access Miner, caracteriza-se por enfocar as etapas do processo de descoberta do conhecimento desde a obtenção dos dados até a apresentação das regras obtidas ao analista. Características específicas do domínio foram consideradas, como a estrutura do site, para o pósprocessamento das regras mineradas a fim de selecionar as potencialmente mais interessantes e reduzir a quantidade de regras a serem apreciadas. O projeto possibilitou a implementação de uma ferramenta para a automação das diversas etapas do processo, sendo consideradas, na sua construção, as características de interatividade e iteratividade, necessárias para a descoberta e consolidação do conhecimento. Finalmente, alguns resultados foram obtidos a partir da aplicação desta ferramenta em dois casos, de forma que o modelo proposto pôde ser validado.

Neste trabalho, é realizado um estudo dos processos de avaliação de alunos em ambiente WBT (Web Based Training). Para tanto, foram analisadas várias ferramentas de avaliação disponíveis no mercado. Com base nestas análises, foi proposto um sistema de gerência de questões e aplicação de avaliações, onde o termo “gerência” é utilizado com o objetivo de (i) atender requisições dos professores para elaboração de avaliações, (ii) escolher o nível de dificuldade das questões que comporão a avaliação e (iii) usar estratégias interativas para aplicação de provas, como por exemplo, a utilização de níveis de dificuldade progressivos das questões submetidas aos alunos, dependendo de suas respostas anteriores. Integrando o sistema de gerência de questões foi proposto um módulo de auto-avaliações, com retorno imediato para o aluno sobre qual é a resposta correta juntamente com uma explicação do professor, auxiliando no entendimento do estudante sobre a matéria ao invés de simplesmente atribuir determinada nota. Enfim, foi implementado um protótipo demonstrando a viabilidade das idéias presentes no modelo de avaliação aqui proposto. A proposta conceitual estabelecida para o modelo é bem mais ampla e flexível do que a atual versão da implementação realizada.

Made available in DSpace on 2016-04-29T14:23:45Z (GMT). No. of bitstreams: 1 Roger Pascoal.pdf: 870165 bytes, checksum: 48c0b0fb40025c970534b1bc2a95458f (MD5) Previous issue date: 2008-07-31 / The collaboration is present in sites that appeared in the last times and become widely used, such as Flickr and YouTube. And, if on the one hand it represents the same ideals intended by the inventors of the World Wide Web, on the other hand it is a reinvented process in accordance with the new available technological possibilities at the current moment. Thus, this research seeks to deepen the understanding about collaboration and how it had developed in the net. It intends to understand the features of collaborative production in cyberspace and to verify the existence of an emergent knowledge from it. The research is divided in five parts. In the first one, the Web development highlighting its collaboration features. In the second, the formation of cyberspace through telematics. In the third, the human cognition in accordance with perspective of the complexity theories and knowledge biology. In the fourth, cognitives technologies and the reflections about coletive cognition. In the fifth, in relation with the previous subjects, the observation of collaborative potential of web architectures and how they can contribute to the knowledge production / A colaboração está presente em sites que surgiram nos últimos tempos e tornaram-se amplamente utilizados, como Flickr e YouTube. E, se por um lado representa os mesmos ideais pretendidos pelos inventores da World Wide Web, por outro trata-se de um processo reinventado de acordo com as novas possibilidades tecnológicas disponíveis no momento atual. Assim, esta pesquisa segue em busca de aprofundar o entendimento sobre a colaboração e como ela evoluiu na rede. Dessa compreensão, pretende entender as características da produção colaborativa no ciberespaço e verificar a existência de um conhecimento emergente a partir dela. A pesquisa divide-se em cinco partes. Na primeira, o desenvolvimento da Web, destacando as suas características colaborativas. Na segunda, a formação do ciberespaço através das redes telemáticas. Na terceira, a cognição humana de acordo com perspectivas das teorias da complexidade e da biologia do conhecimento. Na quarta, as tecnologias cognitivas e as reflexões sobre a cognição em grupo. Na quinta, através da inter-relação entre os campos descritos anteriormente, a observação do potencial colaborativo das arquiteturas da Web e como elas podem contribuir para a produção de conhecimento

Wong, Yuen Chau. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references (leaves 80-83). / Abstracts in English and Chinese. / Chapter 1 --- Introduction --- p.1 / Chapter 1.1 --- Overview --- p.1 / Chapter 1.2 --- Motivation --- p.3 / Chapter 1.3 --- Objective --- p.5 / Chapter 1.4 --- Our contribution --- p.5 / Chapter 1.5 --- Organization of the Thesis --- p.6 / Chapter 2 --- Related Work --- p.7 / Chapter 2.1 --- Existing Sentiment Classification Approach --- p.7 / Chapter 2.2 --- Existing Sentiment Analysis Approach --- p.9 / Chapter 2.3 --- Our Approach --- p.11 / Chapter 3 --- Extracting Product Feature Sentences using Supervised Learning Algorithms --- p.12 / Chapter 3.1 --- Overview --- p.12 / Chapter 3.2 --- Association Rules Mining --- p.13 / Chapter 3.2.1 --- Apriori Algorithm --- p.13 / Chapter 3.2.2 --- Class Association Rules Mining --- p.14 / Chapter 3.3 --- Naive Bayesian Classifier --- p.14 / Chapter 3.3.1 --- Basic Idea --- p.14 / Chapter 3.3.2 --- Feature Selection Techniques --- p.15 / Chapter 3.4 --- Experiment --- p.17 / Chapter 3.4.1 --- Data Sets --- p.18 / Chapter 3.4.2 --- Experimental Setup and Evaluation Measures --- p.19 / Chapter 3.4.1 --- Class Association Rules Mining --- p.20 / Chapter 3.4.2 --- Naive Bayesian Classifier --- p.22 / Chapter 3.4.3 --- Effect on Data Size --- p.25 / Chapter 3.5 --- Discussion --- p.27 / Chapter 4 --- Extracting Product Feature Sentences Using Unsupervised Learning Algorithms --- p.28 / Chapter 4.1 --- Overview --- p.28 / Chapter 4.2 --- Unsupervised Learning Algorithms --- p.29 / Chapter 4.2.1 --- K-means Algorithm --- p.29 / Chapter 4.2.2 --- Density-Based Scan --- p.29 / Chapter 4.2.3 --- Hierarchical Clustering --- p.30 / Chapter 4.3 --- Distance Function --- p.32 / Chapter 4.3.1 --- Euclidean Distance --- p.32 / Chapter 4.3.2 --- Jaccard Distance --- p.32 / Chapter 4.4 --- Experiment --- p.33 / Chapter 4.4.1 --- Cluster Labeling --- p.33 / Chapter 4.4.2 --- K-means Algorithm --- p.34 / Chapter 4.4.3 --- Density-Based Scan --- p.35 / Chapter 4.4.4 --- Hierarchical Clustering --- p.36 / Chapter 4.5 --- Discussion --- p.37 / Chapter 5 --- Extracting Product Feature Sentences Using Concept Clustering --- p.39 / Chapter 5.1 --- Overview --- p.39 / Chapter 5.2 --- Distance Function --- p.40 / Chapter 5.2.1 --- Association Weight --- p.40 / Chapter 5.2.2 --- Chi Square --- p.41 / Chapter 5.2.3 --- Mutual Information --- p.41 / Chapter 5.3 --- Experiment --- p.41 / Chapter 5.3.1 --- Effect on Distance Functions --- p.42 / Chapter 5.3.2 --- Extraction of Product Features Clusters --- p.43 / Chapter 5.3.3 --- Labeling of Sentences --- p.45 / Chapter 5.4 --- Discussion --- p.48 / Chapter 6 --- Extracting Product Feature Sentences Using Concept Clustering and Proposed Unsupervised Learning Algorithm --- p.49 / Chapter 6.1 --- Overview --- p.49 / Chapter 6.2 --- Problem Statement --- p.50 / Chapter 6.3 --- Proposed Algorithm - Scalable Thresholds Clustering --- p.50 / Chapter 6.4 --- Properties of the Proposed Unsupervised Learning Algorithm --- p.54 / Chapter 6.4.1 --- Relationship between threshold functions & shape of clusters --- p.54 / Chapter 6.4.2 --- Expansion process --- p.56 / Chapter 6.4.3 --- Impact of Different Threshold Functions --- p.58 / Chapter 6.5 --- Experiment --- p.61 / Chapter 6.5.1 --- Comparative Studies for Clusters Formation and Sentences Labeling with Digital Camera Dataset --- p.62 / Chapter 6.5.2 --- Experiments with New Datasets --- p.67 / Chapter 6.6 --- Discussion --- p.74 / Chapter 7 --- Conclusion and Future Work --- p.76 / Chapter 7.1 --- Compare with Existing Work --- p.76 / Chapter 7.2 --- Contribution & Implication of this Work --- p.78 / Chapter 7.3 --- Future Work & Improvement --- p.79 / REFFERENCE --- p.80 / Chapter A --- Concept Clustering for DC data with DB Scan (Terms in Concept Clusters) --- p.84 / Chapter B --- Concept Clustering for DC data with Single-linkage Hierarchical Clustering (Terms in Concept Clusters) --- p.87 / Chapter C --- Concept Clusters for Digital Camera data (Comparative Studies) --- p.91 / Chapter D --- Concept Clusters for Personal Computer data (Comparative Studies) --- p.98 / Chapter E --- Concept Clusters for Mobile data (Comparative Studies) --- p.103 / Chapter F --- Concept Clusters for MP3 data (Comparative Studies) --- p.109

Abstract not available

Although there is research into student learning on the Web and other computer-supported environments, there has been little investigation into the practice and pedagogy of university Web teachers. This qualitative study used a series of interviews of eight higher education faculty to gather data on their Web teaching practices, and an examination of their Web courses to identify their pedagogies. There was a notable difference in the way the four teachers with Web-assisted courses and the four teachers with Web-only courses used the Web in their teaching. Those with Web-assisted courses used the Web primarily as a connection to expanded resources and a supplement to their face-to-face teaching. Those who taught Web-only courses used the Web for resource access, and also used asynchronous dialogue and peer interactions to support student construction of knowledge. Moreover, the Web-only teachers reported a shift in their roles from lecturer and expert in the classroom to facilitator and co-learner as Web teachers. Four aspects of the Web teaching environment appear to be foundational in supporting an effective Web pedagogy: (1) the varied and extensive uses of e-mail, (2) the "think time" made possible by asynchronous dialogue, (3) distributed, hyperlinked learning, and (4) a reported shift from a content focus to process and issues because Web instructors are confident that the material is presented in the Web course as they wish it. The experiences of the Web teachers in the study would indicate that these four elements can be leveraged to improve university Web teaching and deepen student learning, perhaps even beyond results capable of achievement in face-to-face teaching. / Graduation date: 1999

As the World Wide Web continues to grow, people clearly want to do much more with it than just publish static pages of text and graphics. While such increased interactivity has traditionally been accomplished through the use of server-side CGI scripts, much recent research on Web browsers has been on extending their capabilities through the addition of various types of client-side services. The most popular of these extensions take the form of plug-ins, applets, and "document scripts" such as Java Script. However, because these extensions have been created in a haphazard way by a variety of independent groups, they suffer greatly in terms of flexibility, uniformity, and interoperability. Interactive HTML is a system that addresses these problems by combining plug-ins, applets, and document scripts into one uniform and cohesive architecture. It is implemented as an external C library that can be used by a browser programmer to add client-side services to the browser. The IHTML services are implemented as dynamically loaded "language modules," allowing new plug-ins and language interpreters to be added to an iHTML browser without recompiling the browser itself. The system is currently integrated with NCSA's X Mosaic browser and includes language modules for a text viewer plug-in and Python language interpreter. This thesis examines the iHTML architecture in the context of the historical development of Web client-side services and presents an example of iHTML's use to collect usage information about Web documents. / Graduation date: 1997