While there are powerful keyword search systems that index all kinds of resources including emails and web pages, people have trouble recalling semantic facts such as the name, location, edit dates and keywords that uniquely identifies resources in their personal repositories. Reusing information exasperates this problem. A rarely used approach is to leverage episodic memory of file provenance. Provenance is traditionally defined as "the history of ownership of a valued object". In terms of documents, we consider not only the ownership, but also the operations performed on the document, especially those that related it to other people, events, or resources. This thesis investigates the potential advantages of using provenance data in desktop search, and consists of two manuscripts. First, a numerical analysis using field data from a longitudinal study shows that provenance information can effectively be used to identify files and resources in realistic repositories. We introduce the Leyline, the first provenance-based search system that supports dynamic relations between files and resources such as copy/paste, save as, file rename. The Leyline allows users to search by drawing search queries as graphs in a sketchpad. The Leyline overlays provenance information that may help users identify targets or explore information flow. A limited controlled experiment showed that this approach is feasible in terms of time and effort. Second, we explore the design of the Leyline, compare it to previous provenance-based desktop search systems, including their underlying assumptions and focus, search coverage and flexibility, and features and limitations. / Graduation date: 2012

INTRODUCTION While the concept is widely defined and interpreted, all Web 2.0 tools have certain characteristics in common; they are collaborative in nature, interactive, and dynamic. The Science and Engineering librarians at the University of British Columbia are collaborating with their liaison departments to record science and engineering podcasts, host them and share them with a wider audience. OBJECTIVES In this session, we discuss the use of podcasting as an outreach tool that connects a large academic science and engineering library with its users and raises users’ awareness of additional library services. Functionality, usability and practical applications of podcasting tools are reviewed. OUTCOMES At the end of this session, we will have demonstrated: 1) Overall usability of podcasting academic science and engineering content; tips and tricks when creating and tailoring podcasts to your community needs; 2) Use of podcasting as an outreach and community engagement tool in academic libraries and as a supplement for the traditional academic information resources. DISCUSSION The strength of podcasting, to allow content to be created by the users for the users, makes it an appealing addition to the academic librarians’ toolbox. Podcasting is a service that many of our users might not expect from their library, which makes it a unique and attractive offering. It requires few resources, and the end result might exceed librarians’ expectations. We found podcasting to be a robust outreach tool and a service that raises the profile of the library and as such creates an opportunity for users to find additional library resources. Nevertheless, it is necessary for academic librarians to critically evaluate the continuous innovations of Web 2.0 technologies on an ongoing basis so that they are best prepared to put them into the appropriate context amongst other relevant and important information.

This study involved a qualitative investigation of consulting engineers' information needs and information-seeking behaviour within the context of their project-related work roles and tasks. The research design includes a study of various information behaviour models, a systematic review of the subject literature and the exploration of relevant qualitative research methods. Data was collected through time-line interviews. The findings show how consulting engineers' work roles and tasks determine their information needs during various engineering project stages. These factors also determine the use of various sources during information seeking. Consulting engineers use a variety of information sources but rely mainly on interpersonal communication to gather information. Digital cameras are used by consulting engineers to record progress in a project. They also use Internet technologies such as email and FTP sites to communicate project related information. Recommendations were put forward for the development of an Internet-based information service for consulting engineers. / Information science / M.Inf.

E-government is a means of improving provision of government information and services to citizens. The aim of this study was to investigate the current situation and factors influencing access of e-government information and e-government adoption in Tanzania. A triangulation approach for data gathering was adopted. Specifically, a semi-structured questionnaire was used to collect data from 448 respondents. In addition, interviews involving five policy makers were conducted to complement the questionnaire survey. Factor analyses were performed and multiple linear regression analyses were carried out to assess the relationships between variables. The findings revealed that, the current state of e-government in the selected districts of Tanzania is characterized by web presence stage. Various enhancing factors and challenges for e-government were noted in this study. The enhancing factors include necessary knowledge, necessary resources, awareness, confidence to use the website, availability and reliability of internet connections, positive incentives that have resulted from using the internet to search for government information, and getting information on demand. Other enhancing factors are guidance for internet use, possession of ICTs, availability of up-to-date information in the website, education, income and social influence. There are some e-government adoption barriers that include worrying about security and privacy of information, lack of support from the government, unreliable power supply, inaccessibility of internet services due to geographical locations, and people not getting as much information about the services as possible. Other barriers are system quality, cultural barriers, age, and information content produced in English, which is a language that the majority do not understand. The study has implications for policy makers and to e-government project teams. Policy makers should consider e-government adoption barriers in order to formulate policies of eliminating them. Likewise, e-government project teams should consider these barriers in order overcome them before the implementation of e-government systems. / Information Science / D. Litt et. Phil. (Information Science)

This study investigates, within the current health care situation, the interrelationship of the user, resources and tool in the design of a prototype WELLNESS database-driven web site. A shift has taken place in health care, in which the base of conventional medicine has broadened to integrate other systems, practices and worldviews. These include complementary and alternative medicine, health promotion, disease prevention and wellness. Emphasis is placed on the need to take personal responsibility for one's own health and wellness. The global burden of chronic disease, reaching epidemic proportions, is increasingly linked to risk factors resulting from personal lifestyle choices. The growing evidence of the user's need to make personal, informed, lifestyle choices and their reliance on the Web for health information, required investigation. WELLNESS, a specific orientation to health and wellness, formed the framework within which the user and resources were defined and the tool designed. The user was profiled as the WELLNESS health information seeker, hereby contributing significantly to an understanding of the user in this new context. The user profile informed the establishment of resource selection criteria and tool design. The identification of WELLNESS content selection criteria, within a five-dimensional model, was required to ensure quality, relevant and credible resources. The tool is comprised of the WELLNESS thesaurus and WELLNESS database-driven web site. The WELLNESS thesaurus was constructed based on a combination of relevant thesauri. It will be used as an indexing tool. An investigation of existing health information web sites highlighted the importance of designing a specific WELLNESS database-driven web site. A database host was identified against which the original study's conceptual schema was assessed. A low-fidelity prototype web site was designed as the interface between the WELLNESS health information seeker and the database of WELLNESS health information resources. This study has epidemiological, philosophical, epistemological, sociological and psychological relevance. The provision of access to WELLNESS health information resources, made available in the WELLNESS database-driven web site, for personal, informed lifestyle choice by the WELLNESS health information seeker could potentially contribute to the reduction of the global burden of chronic disease. / Information Science / D.Litt. et Phil. (Information Science)

This study investigates, within the current health care situation, the interrelationship of the user, resources and tool in the design of a prototype WELLNESS database-driven web site. A shift has taken place in health care, in which the base of conventional medicine has broadened to integrate other systems, practices and worldviews. These include complementary and alternative medicine, health promotion, disease prevention and wellness. Emphasis is placed on the need to take personal responsibility for one's own health and wellness. The global burden of chronic disease, reaching epidemic proportions, is increasingly linked to risk factors resulting from personal lifestyle choices. The growing evidence of the user's need to make personal, informed, lifestyle choices and their reliance on the Web for health information, required investigation. WELLNESS, a specific orientation to health and wellness, formed the framework within which the user and resources were defined and the tool designed. The user was profiled as the WELLNESS health information seeker, hereby contributing significantly to an understanding of the user in this new context. The user profile informed the establishment of resource selection criteria and tool design. The identification of WELLNESS content selection criteria, within a five-dimensional model, was required to ensure quality, relevant and credible resources. The tool is comprised of the WELLNESS thesaurus and WELLNESS database-driven web site. The WELLNESS thesaurus was constructed based on a combination of relevant thesauri. It will be used as an indexing tool. An investigation of existing health information web sites highlighted the importance of designing a specific WELLNESS database-driven web site. A database host was identified against which the original study's conceptual schema was assessed. A low-fidelity prototype web site was designed as the interface between the WELLNESS health information seeker and the database of WELLNESS health information resources. This study has epidemiological, philosophical, epistemological, sociological and psychological relevance. The provision of access to WELLNESS health information resources, made available in the WELLNESS database-driven web site, for personal, informed lifestyle choice by the WELLNESS health information seeker could potentially contribute to the reduction of the global burden of chronic disease. / Information Science / D.Litt. et Phil. (Information Science)

Indiana University-Purdue University Indianapolis (IUPUI) / The amount of information produced in the form of electronic free text in healthcare is increasing to levels incapable of being processed by humans for advancement of his/her professional practice. Information extraction (IE) is a sub-field of natural language processing with the goal of data reduction of unstructured free text. Pertinent to IE is an annotated corpus that frames how IE methods should create a logical expression necessary for processing meaning of text. Most annotation approaches seek to maximize meaning and knowledge by chunking sentences into phrases and mapping these phrases to a knowledge source to create a logical expression. However, these studies consistently have problems addressing semantics and none have addressed the issue of semantic similarity (or synonymy) to achieve data reduction. To achieve data reduction, a successful methodology for data reduction is dependent on a framework that can represent currently popular phrasal methods of IE but also fully represent the sentence. This study explores and reports on the benefits, problems, and requirements to using the predicate-argument statement (PAS) as the framework. A convenient sample from a prior study with ten synsets of 100 unique sentences from radiology reports deemed by domain experts to mean the same thing will be the text from which PAS structures are formed.

Indiana University-Purdue University Indianapolis (IUPUI) / Text mining is a process of extraction of knowledge from unstructured text documents. We have huge volumes of text documents in digital form. It is impossible to manually extract knowledge from these vast texts. Hence, text mining is used to find useful information from text through the identification and exploration of interesting patterns. The objective of this thesis in text mining area is to find compact but high quality frequent patterns from text documents related to neuroscience field. We try to prove that interactive sampling algorithm is efficient in terms of time when compared with exhaustive methods like FP Growth using RapidMiner tool. Instead of mining all frequent patterns, all of which may not be interesting to user, interactive method to mine only desired and interesting patterns is far better approach in terms of utilization of resources. This is especially observed with large number of keywords. In interactive patterns mining, a user gives feedback on whether a pattern is interesting or not. Using Markov Chain Monte Carlo (MCMC) sampling method, frequent patterns are generated in an interactive way. Thesis discusses extraction of patterns between the keywords related to some of the common disorders in neuroscience in an interactive way. PubMed database and keywords related to schizophrenia and alcoholism are used as inputs. This thesis reveals many associations between the different terms, which are otherwise difficult to understand by reading articles or journals manually. Graphviz tool is used to visualize associations.

The purpose of this study was to investigate the training needs of law academics by examining their ability to use legal electronic information resources at Unisa effectively. Using the survey method, a questionnaire was used to collect data. The data was descriptively analysed. The study revealed that law academics are aware of the wide variety of electronic resources relevant to their work. Further, these academics possess the necessary basic skills to use these resources. However, the majority of academics do not have high levels of confidence in using specific electronic legal resources. This study concluded that, despite the library's provision of user training sessions for academics, training does not focus on legal electronic resources. The variety of responses revealed the diverse training needs of law academics. The study recommended that training needs analysis be conducted by subject librarians who would conduct specialised legal electronic training. / Information Sscience / M.Inf.

The purpose of this study was to investigate the training needs of law academics by examining their ability to use legal electronic information resources at Unisa effectively. Using the survey method, a questionnaire was used to collect data. The data was descriptively analysed. The study revealed that law academics are aware of the wide variety of electronic resources relevant to their work. Further, these academics possess the necessary basic skills to use these resources. However, the majority of academics do not have high levels of confidence in using specific electronic legal resources. This study concluded that, despite the library's provision of user training sessions for academics, training does not focus on legal electronic resources. The variety of responses revealed the diverse training needs of law academics. The study recommended that training needs analysis be conducted by subject librarians who would conduct specialised legal electronic training. / Information Sscience / M.Inf.