Artificial Intelligence Lab, Department of MIS, University of Arizona / In this era of the Internet and distributed multimedia computing, new and emerging classes of information technologies have swept into the lives of office workers and everyday people. As technologies and applications become more overwhelming, pressing, and diverse, several well-known information technology problems have become even more urgent. Information overload, a result of the ease of information creation and rendering via Internet and WWW, has become more evident in people’s lives. Significant variations of database formats and structures, the richness of information media text, audio, and video , and an abundance of multilingual information content also have created various information interoperability problems - structural interoperability, media interoperability, and multilingual interoperability.

Artificial Intelligence Lab, Department of MIS, University of Arizona / In information facilities such as libraries, finding documents that are relevant to a user query is difficult because of the indeterminism involved in the process by which documents are indexed, and the latitude users have in choosing terms to express a query on a particular topic. Reference librarians play an important support role in coping with this indeterminism, focusing user queries through an interactive dialog. Based on thirty detailed observations of user/librarian interactions obtained through a field experiment, we have developed a computational model designed to simulate the reference librarian. The consultation includes two phases. The first is handle search, where the userâ s rough problem statement and a user stereotyping imposed by the librarian are used in determining the appropriate tools (handles). The second phase is document search, involving the search for documents within a chosen handle. We are collaborating with the university library for putting our model to use as an intelligent assistant for an online retrieval system.

A usability evaluation was carried out of the recently-launched South London and Maudsley NHS Trust library web site using a variety of standard methodologies: content and design evaluation of selected comparable sites, focus groups, a questionnaire survey of library and web development staff, heuristic evaluation, observation testing, card sorting/cluster analysis, and label intuitiveness/category membership testing. All test participants were staff of or providers of services to the trust. Demographic information was recorded for each participant. Unsuccessful attempts were made to evaluate user feedback, and to compare usability test results with usage statistics. Test participantsâ overall responses to the site were enthusiastic and favourable, indicating the scope and content of the site to be broadly appropriate to the user group. Numerous suggestions for new content areas were made by testers. Usability problems were discovered in two main areas: in the organisation of the site, and in the terminology used to refer to information services and sources. On the basis of test results, proposals for a revised menu structure, improved accessibility, and changes to the terminology used within the site are presented.

This paper describes how scientists utilize specific journal article components, the tables, figures, maps, photographs, and graphs contained in journal articles, to support both their teaching and research. These findings are taken from a comprehensive investigation into scientistsâ satisfaction with and use of a prototype retrieval system that indexes tables and figures culled from scientific journal articles. Rather than focusing on seeking and searching, this paper summarizes four ways in which scientists utilize the information they find in tables and figures obtained from journal articles. While the first type of use described here, creating new fixed documents, confirms the findings of previous research, the other three types of use reveal emerging practices with journal article components: creating documents to support performative activities; making comparisons between a scientistâ s own work and the work of other researchers; and creating other information forms and objects.

This is a presentation at the ASIS&T 2005 Annual Meeting session on Progress in the Design and Evaluation of Digital Libraries: Implications for Research and Education (moderator: Kyung-Sun Kim). The presentation discusses the creation, design, and management of dLIST, an open access archive for the Information Sciences, and the affiliated DL-Harvest, an open access aggregator and federated search engine. As an Eprints-based open access archive, dLIST is a digital repository but it is a cross-institutional and interdisciplinary repository built on the concept of "sustainable information behaviors." Elements such as openness, transparency, information quality and interoperability are critical components along with a focus on connected communities of practice. Sustainable information behaviors can take us beyond the information-seeking-in-context agenda and enable a transformation of scholarly and research commmunity information sharing and communication that is more in tune with the values of a digitally flat (connected) world. Editor's Note: Some of the screenshots of the dlist web pages in the slides appear to have degenerated.

Artificial Intelligence Lab, Department of MIS, University of Arizona / In this era of the Internet and distributed multimedia computing, new and emerging classes of information systems applications have swept into the lives of office workers and everyday people. New applications ranging from digital libraries, multimedia systems, geographic information systems, collaborative computing to electronic commerce, virtual reality, and electronic video arts and games have created tremendous opportunities for information and computer science researchers and practitioners. As the applications become more overwhelming, pressing, and diverse, several well-known information retrieval (IR) problems have become even more urgent in this â networkcentricâ information age. Information overload, a result of the ease of information creation and rendering via the Internet and the World Wide Web, has become more evident in peopleâ s lives. Significant variations of database formats and structures, the richness of information media, and an abundance of multilingual information content also have created severe information interoperability problems-structural interoperability, media interoperability, and multilingual interoperability. The conventional approaches to addressing information overload and information interoperability problems are manual in nature, requiring human experts as information intermediaries to create knowledge structures and/or ontologies. As information content and collections become even larger and more dynamic, we believe a system-aided bottom-up artificial intelligence (AI) approach is needed. By applying scalable techniques developed in various AI subareas such as image segmentation and indexing, voice recognition, natural language processing, neural networks, machine learning, clustering and categorization, and intelligent agents, we can provide an alternative system-aided approach to addressing both information overload and information interoperability.

The present research explored cross-cultural differences in postdecisional confirmation bias. I hypothesized that, following a personal decision—one that entails consequences for the decision maker only, Euro-Canadians would be more likely to seek out confirmatory information than would Japanese, whereas following an interpersonal decision—one that entails consequences for those closest to the decision maker, Japanese would be more likely to do so than Euro-Canadians. In Study 1, Euro-Canadians and Japanese university students were randomly assigned to either the self or friend condition. Participants in the self and friend condition selected a movie for which they or their friend would ostensibly receive a free pass to see in theatres, respectively. After selecting a movie, participants were presented with a list of 12 movie reviews that either confirmed or disconfirmed their choice. Participants then indicated which of the reviews they wanted to read further. Study 2 employed the same paradigm as did Study 1 and also included a measure of participants’ information processing goals. For Study 1, the results of a series of one-sample t tests revealed that Euro-Canadians in the self condition exhibited confirmation bias as well as did those in the friend condition, albeit this latter trend was not significant. In contrast, Japanese in both conditions showed no preference for confirmatory or disconfirmatory information. For Study 2, Japanese continued to exhibit a balanced search. However, Euro-Canadians in the friend condition preferred confirmatory information, whereas Euro-Canadians in the self condition exhibited a slight, non-significant preference for disconfirmatory information. Regarding participants’ information processing goals, those in the friend condition were more concerned with affirming and convincing others of the correctness of their choice than were those in the self condition. Also, Euro-Canadians indicated that they were motivated to be accurate more than did Japanese. The present research indicates that Euro-Canadians and Japanese differ in terms of the decisions that they seek to confirm (albeit not in the predicted direction). Reasons for such discrepant findings and limits of the present research are discussed. / Thesis (Master, Psychology) -- Queen's University, 2010-09-02 12:51:18.396

国立情報学研究所で電子化したコンテンツを使用している。

Magister Artium - MA / The study investigated the information behaviour of fourth year students of Mzuzu University in Malawi. The study specifically intended to establish the information needs, preferred information sources and information seeking behaviours of fourth year students at Mzuzu University. The study also aimed at ascertaining whether emotions experienced by these students conformed to some of those identified by Kuhlthau’s Information Search Process (ISP) model. The study used the Kuhlthau’s Information Search Process model as a theoretical framework because of its being closer to reality on how students search for information. The target population of the study was seven hundred and fifty two (752) fourth year students belonging to the five faculties of the University (Mzuzu University website, 2013). A mixed method survey employing both qualitative and quantitative approaches was used. The study used the probability sampling method. Specifically, stratified sampling in which students were divided into different strata according to the faculty they belong to was adopted. The study used the sample size of two hundred and fifty four (254) students of which two hundred and forty three (243) responded to the questionnaire. The results of the study revealed that most of the fourth year students (65.4%) needed information for their academic studies. The study also found that most of these students (62.5%) preferred electronic and not printed information sources. Most students indicated that they did not use e-journals (66%), subscription databases (94%) or printed journals (52%). As sources of information, students relied mainly on the Internet (64.6%), search engines like Google (56.2%) and the OPAC (45%). When searching for information, the majority of students did not use truncation (98.3%) or Boolean logic (98.8%).It has also been established that students did not fully conform to Kuhlthau’s ISP model of information behaviour. Some of the obstacles met during information seeking were lack of financial resources as well as lack of essential textbooks and important books. The findings suggest that the students lack information literacy skills and it is recommended that the university should re-examine its information literacy education. It is expected that the findings of this study will assist the researcher and the Mzuzu University library and the Learning Resources Centre to establish more effective and user centred services to meet the needs of their students. It also adds to the body of knowledge on information behaviour of students, especially in Malawi.

The current research sought to gain in-depth insights into the information-seeking behavior of Turkish National Police digital evidence examiners (DEEs); to explore the information sources that DEEs use and the factors affecting their decisions about source selection. Factors that affect information source selection and use by DEEs are: accreditation, workload, type of information, time, cost, availability, reliability/scientific importance, up-to-date data, prior experience with the source, relevance, interactivity and importance. The Internet was the information source most commonly used by participants during the examination stage; other sources included forums, experts, colleagues, forensic tools/kits and books. During the analysis stage, the most frequently mentioned information source was the investigation file, containing information about the elements of the crime; other sources included: personal experience, experts, detectives, the Internet, clients, professional training, the prosecutor, evidence submission forms, in-lab manuals, forums and colleagues. During the report-writing stage, most DEEs used in-lab manuals and report templates as information sources, but previously written reports, editing software, and colleagues were also used to obtain information about the format, style and language of reports as legal documents.