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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Using the Internet for Fast Facts

Nicholson, Scott January 1997 (has links)
The Internet is the largest full-text database ever created, and many librarians have inexpensive access to this resource. A plethora of facts can be quickly mined using a few techniques with full-text search tools, such as Alta Vista or Infoseek (Infoseek no longer exists. Current tools to use would be Alta Vista, Google, or Alltheweb). A full-text search tool is a tool where the web database is created by indexing every word from every included page. This article will teach you Internet search techniques to apply when researching a question requiring a short, factual answer. It also offers a few precautions when using the Internet to accomplish this.
2

Ebresphere: a territorial community around blogs

Gil-Solés, Daniel, Pla-Alcaide, Carme 07 1900 (has links)
Presentation: International Conference "Catalan Culture and Identity in the Digital Era", London, July 5-7 2007 / Five events are described in a chronological order, which, according to the authors, have driven the consolidation of a territorial community around blogs in Terres de l'Ebre (in Tarragona, south of Catalonia). From this historical evolution, some conclusions come out on the current role blogs are playing in Terres de l'Ebre and their main features along with the proposal of Ebresphere as the name to define this community. Future prospectives and tendencies to follow-up are proposed. Finally, a classification is established about large groups of blogs configuring this community.
3

Raising Reliability of Web Search Tool Research through Replication and Chaos Theory

Nicholson, Scott January 2000 (has links)
Because the World Wide Web is a dynamic collection of information, the Web search tools (or "search engines") that index the Web are dynamic. Traditional information retrieval evaluation techniques may not provide reliable results when applied to the Web search tools. This study is the result of ten replications of the classic 1996 Ding and Marchionini Web search tool research. It explores the effects that replication can have on transforming unreliable results from one iteration into replicable and therefore reliable results after multiple iterations.
4

Paedophile activity on the internet

O'Connell, Rachel January 2005 (has links)
The main aim of this thesis was to explore the nature, scope and extent of paedophile activity online. A variety of both qualitative and quantitative methodologies were employed during the three studies that comprise this thesis. Study I The aim of Study I was to test the hypothesis, which stated that there are patterns of association between distinct categories of content of child abuse images that are observable, measurable and can be modelled. The findings of this study appear to support the hypothesis. The analysis of two-way interactions indicated that, in this sample, older children were less likely to appear in sexually explicit material. There were a greater number of Caucasian than non-Caucasian children in this sample, and non-Caucasians were less likely to appear in Erotic imagery and were more likely than Caucasians to be depicted Naked. The analysis provides insights into the preferences of adults interested in child abuse images and the particular groups of children who are more at risk of coercion into this type of activity. Furthermore, loglinear modelling resulted in three 3-way and two 4-way interactions being identified that summarized the patterns and trends present in the data. The application of the techniques outlined in this paper in future programmes of research will afford law enforcement agencies the facility to examine behaviours associated with child abuse images in greater depth. Study 2: The aim of Study 2 was to examine how adults and adolescents with a sexual interest in children communicate with one another online. A participant observation methodology was employed in this study, which involved over 38 hours and 48 minutes in a number of child-sex related chat rooms, i.e. 'Toddle rsex, 'Kiddyfucking', 'Dadaughtersex'. The analysis of conversations gathered in Study 2 provide insights into the nature of the activities adults with a sexual interest in children collectively engage in online, e.g., collective generation and exchange of both child-sex related fantasies and details of alleged experiences and also role-playing activities. The findings of this study suggest that the behaviours engaged in by adults with a sexual interest in children are not necessarily qualitatively dWerent to those engaged in by, for example, Massively Multi Player Online Role Playing Game (MMORPG) players. The findings of Study 2 raise a host of research questions such as, for example, whether or not, it would be possible to develop a means to calibrate the extent of an individual's engagement, involvement or immersion in online child-sex related activities and what, if any, relationship exists between varying degrees of an individual's involvement, engagement and/or immersion in online child-sex related activities and the likelihood to offend against children. Study 3 The aim of Study 3 was to explore the processes that characterise online 'grooming' of children by adults and adolescents with a sexual interest in children in teen chat rooms. A participant observation methodology was employed and the researcher/author posed as an 8, 10 or 12 year old child. The behavioural repertoires of adults with a sexual interest in children who interact with children online for sexual purposes were identified The findings of this study provide preliminary insights into various stages of online grooming processes including, for example, the victim selection phase, friendship forming phase, relationship forming, risk assessment, exclusivity and sexual phases. The findings of Study 3 also identified a variety of tactics employed by adults with a sexual interest in children during each stage of the grooming process. In Chapter 12 the findings of Study 3 were juxtaposed with Knight and Prentky's (1990) taxonomic model, i.e., Massachusetts Treatment Centre: Child Molester Typology, version 3 (MT: CM3), not only to explore the findings of Study 3 in greater depth but also to map future programmes of research. The findings of the three studies reported in this thesis have a number of implications not only for future programmes of research but also at an operational policing level. The findings also contribute toward an increased understanding of the nature, scope and extent of paedophile activity online.
5

Young, Competent Internet-Users: A theory based profile

January 2005 (has links)
This thesis presents a qualitative case study of the skills and characteristics of five competent Internet users aged between 10 and 13 years as they engage in Internet activities reflective of their day -to-day use of this culturally valued cognitive tool. The thesis focuses on their learning during these activities and describes the educational profiles of these young learners. To uncover and more fully understand the learning experiences of young, competent Internet users an integrated theoretical framework was established. Specifically, relevant components of Situated Cognition, Distributed Cognition and Activity Theory, combined with understandings from several cognitive theories developed my understanding of the Internet -mediated learning environment. This integrated theoretical framework resulted in an Internet -Mediated Learning Model which has enabled a holistic understanding of this complex learning sys tem. This model identifies the three major components making up the Internet -mediated learning system: individual, mediating tool (the Internet) and society, and acknowledges the intertwined relationship between these three elements. The Internet -Mediated Learning Model considers the cognitive processing capabilities and active participation of the individual; the design features and distributive properties of the Internet; and the transmission of social knowledge and participation in local and global communities afforded by Internet -mediated activity. The integrated theoretical framework was also instrumental in the research design of this study. Most importantly, as a result of the theoretical stance underpinning the study it was deemed appropriate to allow the participants to engage in Internet mediated activity which was reflective of their day -to-day use of this tool, that is, authentic activity. The data were collected in two distinct phases using four research methods: questionnaire, observations, think -aloud protocols and follow -up interviews. In the first phase a questionnaire, which included a practical component, was developed to ensure the selection of participants who were competent Internet users. Each participant then chose their own Internet -mediated activity in which to participate. Whilst the participants independently completed this activity they were observed and asked to think -aloud. In the second phase, after analysis of the initial data, a follow -up interview was conducted to further explore some of the issues which emerged from the first phase of data collection. This interview also included a practical component using the Internet. Analysis of the data resulted in a profile of the young, competent Internet -user. This profile revealed learning characteristics and skills of the user captured in three broad areas which, for this study, have been titled: Participant Citizen, Tool -Mediated Citizen and Adaptive Citizen. The Participant Citizen captures the skills and knowledge being developed during Internet -mediated activity which relate to transmission of social knowledge and practices and which enable Internet -users to participate in local and global communities. The Tool -Mediated Citizen uncovers learning related to the design features of the Internet and considers the distributive properties of the tool. The Adapative Citizen reveals learner characteristics which enable Internet -users to manage and negotiate the Internet -mediated environment. Taken together, the Internet -Mediated Learning Model and profile of the young, competent Internet -user provide an in -depth understanding of learning in this unique and complex environment. This study highlights the value in reconsidering the learner skills and characteristics relevant to current and future generations and questioning our application of preconceived notions of learning to the new and relatively unexplored Internet -mediated learning environment.
6

Market transition and the spatial dynamics of Internet development in China

Zhang, Jun. January 2007 (has links)
Thesis (Ph.D.)--University of Minnesota, 2007. / Adviser: Eric S. Sheppard. Includes bibliographical references.
7

An evaluation platform for semantic web technology /

Åberg, Cécile, January 2007 (has links)
Diss. Linköping : Linköpings universitet, 2007.
8

Publika informationstjänster : en studie av den elektroniska encyklopedins bruksegenskaper /

Hult, Lars, January 2003 (has links) (PDF)
Diss. Linköping : Univ., 2003. / På omsl. med undertitel: En studie av den Internetbaserade encyklopedins bruksegenskaper.
9

Studies on heterogeneous packet switched networks /

Jonsson, Andreas, January 2005 (has links)
Lic.-avh. Luleå : Luleå tekniska universitet, 2005.
10

Young, Competent Internet-Users: A theory based profile

January 2005 (has links)
This thesis presents a qualitative case study of the skills and characteristics of five competent Internet users aged between 10 and 13 years as they engage in Internet activities reflective of their day -to-day use of this culturally valued cognitive tool. The thesis focuses on their learning during these activities and describes the educational profiles of these young learners. To uncover and more fully understand the learning experiences of young, competent Internet users an integrated theoretical framework was established. Specifically, relevant components of Situated Cognition, Distributed Cognition and Activity Theory, combined with understandings from several cognitive theories developed my understanding of the Internet -mediated learning environment. This integrated theoretical framework resulted in an Internet -Mediated Learning Model which has enabled a holistic understanding of this complex learning sys tem. This model identifies the three major components making up the Internet -mediated learning system: individual, mediating tool (the Internet) and society, and acknowledges the intertwined relationship between these three elements. The Internet -Mediated Learning Model considers the cognitive processing capabilities and active participation of the individual; the design features and distributive properties of the Internet; and the transmission of social knowledge and participation in local and global communities afforded by Internet -mediated activity. The integrated theoretical framework was also instrumental in the research design of this study. Most importantly, as a result of the theoretical stance underpinning the study it was deemed appropriate to allow the participants to engage in Internet mediated activity which was reflective of their day -to-day use of this tool, that is, authentic activity. The data were collected in two distinct phases using four research methods: questionnaire, observations, think -aloud protocols and follow -up interviews. In the first phase a questionnaire, which included a practical component, was developed to ensure the selection of participants who were competent Internet users. Each participant then chose their own Internet -mediated activity in which to participate. Whilst the participants independently completed this activity they were observed and asked to think -aloud. In the second phase, after analysis of the initial data, a follow -up interview was conducted to further explore some of the issues which emerged from the first phase of data collection. This interview also included a practical component using the Internet. Analysis of the data resulted in a profile of the young, competent Internet -user. This profile revealed learning characteristics and skills of the user captured in three broad areas which, for this study, have been titled: Participant Citizen, Tool -Mediated Citizen and Adaptive Citizen. The Participant Citizen captures the skills and knowledge being developed during Internet -mediated activity which relate to transmission of social knowledge and practices and which enable Internet -users to participate in local and global communities. The Tool -Mediated Citizen uncovers learning related to the design features of the Internet and considers the distributive properties of the tool. The Adapative Citizen reveals learner characteristics which enable Internet -users to manage and negotiate the Internet -mediated environment. Taken together, the Internet -Mediated Learning Model and profile of the young, competent Internet -user provide an in -depth understanding of learning in this unique and complex environment. This study highlights the value in reconsidering the learner skills and characteristics relevant to current and future generations and questioning our application of preconceived notions of learning to the new and relatively unexplored Internet -mediated learning environment.

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